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

   1 /*******************************************************************************
   2  *
   3  * Intel Ethernet Controller XL710 Family Linux Driver
   4  * Copyright(c) 2013 - 2016 Intel Corporation.
   5  *
   6  * This program is free software; you can redistribute it and/or modify it
   7  * under the terms and conditions of the GNU General Public License,
   8  * version 2, as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  *
  18  * The full GNU General Public License is included in this distribution in
  19  * the file called "COPYING".
  20  *
  21  * Contact Information:
  22  * e1000-devel Mailing List <[email protected]>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  ******************************************************************************/
  26
  27 /* ethtool support for i40e */
  28
  29 #include "i40e.h"
  30 #include "i40e_diag.h"
  31
  32 struct i40e_stats {
  33         char stat_string[ETH_GSTRING_LEN];
  34         int sizeof_stat;
  35         int stat_offset;
  36 };
  37
  38 #define I40E_STAT(_type, _name, _stat) { \
  39         .stat_string = _name, \
  40         .sizeof_stat = FIELD_SIZEOF(_type, _stat), \
  41         .stat_offset = offsetof(_type, _stat) \
  42 }
  43
  44 #define I40E_NETDEV_STAT(_net_stat) \
  45                 I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat)
  46 #define I40E_PF_STAT(_name, _stat) \
  47                 I40E_STAT(struct i40e_pf, _name, _stat)
  48 #define I40E_VSI_STAT(_name, _stat) \
  49                 I40E_STAT(struct i40e_vsi, _name, _stat)
  50 #define I40E_VEB_STAT(_name, _stat) \
  51                 I40E_STAT(struct i40e_veb, _name, _stat)
  52
  53 static const struct i40e_stats i40e_gstrings_net_stats[] = {
  54         I40E_NETDEV_STAT(rx_packets),
  55         I40E_NETDEV_STAT(tx_packets),
  56         I40E_NETDEV_STAT(rx_bytes),
  57         I40E_NETDEV_STAT(tx_bytes),
  58         I40E_NETDEV_STAT(rx_errors),
  59         I40E_NETDEV_STAT(tx_errors),
  60         I40E_NETDEV_STAT(rx_dropped),
  61         I40E_NETDEV_STAT(tx_dropped),
  62         I40E_NETDEV_STAT(collisions),
  63         I40E_NETDEV_STAT(rx_length_errors),
  64         I40E_NETDEV_STAT(rx_crc_errors),
  65 };
  66
  67 static const struct i40e_stats i40e_gstrings_veb_stats[] = {
  68         I40E_VEB_STAT("rx_bytes", stats.rx_bytes),
  69         I40E_VEB_STAT("tx_bytes", stats.tx_bytes),
  70         I40E_VEB_STAT("rx_unicast", stats.rx_unicast),
  71         I40E_VEB_STAT("tx_unicast", stats.tx_unicast),
  72         I40E_VEB_STAT("rx_multicast", stats.rx_multicast),
  73         I40E_VEB_STAT("tx_multicast", stats.tx_multicast),
  74         I40E_VEB_STAT("rx_broadcast", stats.rx_broadcast),
  75         I40E_VEB_STAT("tx_broadcast", stats.tx_broadcast),
  76         I40E_VEB_STAT("rx_discards", stats.rx_discards),
  77         I40E_VEB_STAT("tx_discards", stats.tx_discards),
  78         I40E_VEB_STAT("tx_errors", stats.tx_errors),
  79         I40E_VEB_STAT("rx_unknown_protocol", stats.rx_unknown_protocol),
  80 };
  81
  82 static const struct i40e_stats i40e_gstrings_misc_stats[] = {
  83         I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
  84         I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
  85         I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
  86         I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
  87         I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
  88         I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
  89         I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
  90         I40E_VSI_STAT("tx_linearize", tx_linearize),
  91         I40E_VSI_STAT("tx_force_wb", tx_force_wb),
  92         I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed),
  93         I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
  94 };
  95
  96 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
  97  * but they are separate.  This device supports Virtualization, and
  98  * as such might have several netdevs supporting VMDq and FCoE going
  99  * through a single port.  The NETDEV_STATs are for individual netdevs
 100  * seen at the top of the stack, and the PF_STATs are for the physical
 101  * function at the bottom of the stack hosting those netdevs.
 102  *
 103  * The PF_STATs are appended to the netdev stats only when ethtool -S
 104  * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
 105  */
 106 static const struct i40e_stats i40e_gstrings_stats[] = {
 107         I40E_PF_STAT("rx_bytes", stats.eth.rx_bytes),
 108         I40E_PF_STAT("tx_bytes", stats.eth.tx_bytes),
 109         I40E_PF_STAT("rx_unicast", stats.eth.rx_unicast),
 110         I40E_PF_STAT("tx_unicast", stats.eth.tx_unicast),
 111         I40E_PF_STAT("rx_multicast", stats.eth.rx_multicast),
 112         I40E_PF_STAT("tx_multicast", stats.eth.tx_multicast),
 113         I40E_PF_STAT("rx_broadcast", stats.eth.rx_broadcast),
 114         I40E_PF_STAT("tx_broadcast", stats.eth.tx_broadcast),
 115         I40E_PF_STAT("tx_errors", stats.eth.tx_errors),
 116         I40E_PF_STAT("rx_dropped", stats.eth.rx_discards),
 117         I40E_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down),
 118         I40E_PF_STAT("rx_crc_errors", stats.crc_errors),
 119         I40E_PF_STAT("illegal_bytes", stats.illegal_bytes),
 120         I40E_PF_STAT("mac_local_faults", stats.mac_local_faults),
 121         I40E_PF_STAT("mac_remote_faults", stats.mac_remote_faults),
 122         I40E_PF_STAT("tx_timeout", tx_timeout_count),
 123         I40E_PF_STAT("rx_csum_bad", hw_csum_rx_error),
 124         I40E_PF_STAT("rx_length_errors", stats.rx_length_errors),
 125         I40E_PF_STAT("link_xon_rx", stats.link_xon_rx),
 126         I40E_PF_STAT("link_xoff_rx", stats.link_xoff_rx),
 127         I40E_PF_STAT("link_xon_tx", stats.link_xon_tx),
 128         I40E_PF_STAT("link_xoff_tx", stats.link_xoff_tx),
 129         I40E_PF_STAT("rx_size_64", stats.rx_size_64),
 130         I40E_PF_STAT("rx_size_127", stats.rx_size_127),
 131         I40E_PF_STAT("rx_size_255", stats.rx_size_255),
 132         I40E_PF_STAT("rx_size_511", stats.rx_size_511),
 133         I40E_PF_STAT("rx_size_1023", stats.rx_size_1023),
 134         I40E_PF_STAT("rx_size_1522", stats.rx_size_1522),
 135         I40E_PF_STAT("rx_size_big", stats.rx_size_big),
 136         I40E_PF_STAT("tx_size_64", stats.tx_size_64),
 137         I40E_PF_STAT("tx_size_127", stats.tx_size_127),
 138         I40E_PF_STAT("tx_size_255", stats.tx_size_255),
 139         I40E_PF_STAT("tx_size_511", stats.tx_size_511),
 140         I40E_PF_STAT("tx_size_1023", stats.tx_size_1023),
 141         I40E_PF_STAT("tx_size_1522", stats.tx_size_1522),
 142         I40E_PF_STAT("tx_size_big", stats.tx_size_big),
 143         I40E_PF_STAT("rx_undersize", stats.rx_undersize),
 144         I40E_PF_STAT("rx_fragments", stats.rx_fragments),
 145         I40E_PF_STAT("rx_oversize", stats.rx_oversize),
 146         I40E_PF_STAT("rx_jabber", stats.rx_jabber),
 147         I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests),
 148         I40E_PF_STAT("arq_overflows", arq_overflows),
 149         I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
 150         I40E_PF_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped),
 151         I40E_PF_STAT("fdir_flush_cnt", fd_flush_cnt),
 152         I40E_PF_STAT("fdir_atr_match", stats.fd_atr_match),
 153         I40E_PF_STAT("fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
 154         I40E_PF_STAT("fdir_atr_status", stats.fd_atr_status),
 155         I40E_PF_STAT("fdir_sb_match", stats.fd_sb_match),
 156         I40E_PF_STAT("fdir_sb_status", stats.fd_sb_status),
 157
 158         /* LPI stats */
 159         I40E_PF_STAT("tx_lpi_status", stats.tx_lpi_status),
 160         I40E_PF_STAT("rx_lpi_status", stats.rx_lpi_status),
 161         I40E_PF_STAT("tx_lpi_count", stats.tx_lpi_count),
 162         I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count),
 163 };
 164
 165 #define I40E_QUEUE_STATS_LEN(n) \
 166         (((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \
 167             * 2 /* Tx and Rx together */                                     \
 168             * (sizeof(struct i40e_queue_stats) / sizeof(u64)))
 169 #define I40E_GLOBAL_STATS_LEN   ARRAY_SIZE(i40e_gstrings_stats)
 170 #define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
 171 #define I40E_MISC_STATS_LEN     ARRAY_SIZE(i40e_gstrings_misc_stats)
 172 #define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
 173                                  I40E_MISC_STATS_LEN + \
 174                                  I40E_QUEUE_STATS_LEN((n)))
 175 #define I40E_PFC_STATS_LEN ( \
 176                 (FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \
 177                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \
 178                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \
 179                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \
 180                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \
 181                  / sizeof(u64))
 182 #define I40E_VEB_TC_STATS_LEN ( \
 183                 (FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_packets) + \
 184                  FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_bytes) + \
 185                  FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_packets) + \
 186                  FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_bytes)) \
 187                  / sizeof(u64))
 188 #define I40E_VEB_STATS_LEN      ARRAY_SIZE(i40e_gstrings_veb_stats)
 189 #define I40E_VEB_STATS_TOTAL    (I40E_VEB_STATS_LEN + I40E_VEB_TC_STATS_LEN)
 190 #define I40E_PF_STATS_LEN(n)    (I40E_GLOBAL_STATS_LEN + \
 191                                  I40E_PFC_STATS_LEN + \
 192                                  I40E_VSI_STATS_LEN((n)))
 193
 194 enum i40e_ethtool_test_id {
 195         I40E_ETH_TEST_REG = 0,
 196         I40E_ETH_TEST_EEPROM,
 197         I40E_ETH_TEST_INTR,
 198         I40E_ETH_TEST_LINK,
 199 };
 200
 201 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
 202         "Register test  (offline)",
 203         "Eeprom test    (offline)",
 204         "Interrupt test (offline)",
 205         "Link test   (on/offline)"
 206 };
 207
 208 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
 209
 210 struct i40e_priv_flags {
 211         char flag_string[ETH_GSTRING_LEN];
 212         u64 flag;
 213         bool read_only;
 214 };
 215
 216 #define I40E_PRIV_FLAG(_name, _flag, _read_only) { \
 217         .flag_string = _name, \
 218         .flag = _flag, \
 219         .read_only = _read_only, \
 220 }
 221
 222 static const struct i40e_priv_flags i40e_gstrings_priv_flags[] = {
 223         /* NOTE: MFP setting cannot be changed */
 224         I40E_PRIV_FLAG("MFP", I40E_FLAG_MFP_ENABLED, 1),
 225         I40E_PRIV_FLAG("LinkPolling", I40E_FLAG_LINK_POLLING_ENABLED, 0),
 226         I40E_PRIV_FLAG("flow-director-atr", I40E_FLAG_FD_ATR_ENABLED, 0),
 227         I40E_PRIV_FLAG("veb-stats", I40E_FLAG_VEB_STATS_ENABLED, 0),
 228         I40E_PRIV_FLAG("hw-atr-eviction", I40E_FLAG_HW_ATR_EVICT_ENABLED, 0),
 229         I40E_PRIV_FLAG("legacy-rx", I40E_FLAG_LEGACY_RX, 0),
 230         I40E_PRIV_FLAG("disable-source-pruning",
 231                        I40E_FLAG_SOURCE_PRUNING_DISABLED, 0),
 232 };
 233
 234 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gstrings_priv_flags)
 235
 236 /* Private flags with a global effect, restricted to PF 0 */
 237 static const struct i40e_priv_flags i40e_gl_gstrings_priv_flags[] = {
 238         I40E_PRIV_FLAG("vf-true-promisc-support",
 239                        I40E_FLAG_TRUE_PROMISC_SUPPORT, 0),
 240 };
 241
 242 #define I40E_GL_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_gl_gstrings_priv_flags)
 243
 244 /**
 245  * i40e_partition_setting_complaint - generic complaint for MFP restriction
 246  * @pf: the PF struct
 247  **/
 248 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
 249 {
 250         dev_info(&pf->pdev->dev,
 251                  "The link settings are allowed to be changed only from the first partition of a given port. Please switch to the first partition in order to change the setting.\n");
 252 }
 253
 254 /**
 255  * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes
 256  * @pf: PF struct with phy_types
 257  * @ks: ethtool link ksettings struct to fill out
 258  *
 259  **/
 260 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf,
 261                                      struct ethtool_link_ksettings *ks)
 262 {
 263         struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info;
 264         u64 phy_types = pf->hw.phy.phy_types;
 265
 266         ethtool_link_ksettings_zero_link_mode(ks, supported);
 267         ethtool_link_ksettings_zero_link_mode(ks, advertising);
 268
 269         if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
 270                 ethtool_link_ksettings_add_link_mode(ks, supported,
 271                                                      1000baseT_Full);
 272                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 273                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 274                                                              1000baseT_Full);
 275                 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 276                         ethtool_link_ksettings_add_link_mode(ks, supported,
 277                                                              100baseT_Full);
 278                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 279                                                              100baseT_Full);
 280                 }
 281         }
 282         if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
 283             phy_types & I40E_CAP_PHY_TYPE_XFI ||
 284             phy_types & I40E_CAP_PHY_TYPE_SFI ||
 285             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
 286             phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC) {
 287                 ethtool_link_ksettings_add_link_mode(ks, supported,
 288                                                      10000baseT_Full);
 289                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 290                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 291                                                              10000baseT_Full);
 292         }
 293         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_T) {
 294                 ethtool_link_ksettings_add_link_mode(ks, supported,
 295                                                      10000baseT_Full);
 296                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 297                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 298                                                              10000baseT_Full);
 299         }
 300         if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
 301             phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
 302             phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
 303                 ethtool_link_ksettings_add_link_mode(ks, supported,
 304                                                      40000baseCR4_Full);
 305         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 306             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
 307                 ethtool_link_ksettings_add_link_mode(ks, supported,
 308                                                      40000baseCR4_Full);
 309                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB)
 310                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 311                                                              40000baseCR4_Full);
 312         }
 313         if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
 314                 ethtool_link_ksettings_add_link_mode(ks, supported,
 315                                                      100baseT_Full);
 316                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 317                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 318                                                              100baseT_Full);
 319         }
 320         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T) {
 321                 ethtool_link_ksettings_add_link_mode(ks, supported,
 322                                                      1000baseT_Full);
 323                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 324                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 325                                                              1000baseT_Full);
 326         }
 327         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4)
 328                 ethtool_link_ksettings_add_link_mode(ks, supported,
 329                                                      40000baseSR4_Full);
 330         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4)
 331                 ethtool_link_ksettings_add_link_mode(ks, supported,
 332                                                      40000baseLR4_Full);
 333         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
 334                 ethtool_link_ksettings_add_link_mode(ks, supported,
 335                                                      40000baseLR4_Full);
 336                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 337                                                      40000baseLR4_Full);
 338         }
 339         if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
 340                 ethtool_link_ksettings_add_link_mode(ks, supported,
 341                                                      20000baseKR2_Full);
 342                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB)
 343                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 344                                                              20000baseKR2_Full);
 345         }
 346         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
 347                 ethtool_link_ksettings_add_link_mode(ks, supported,
 348                                                      10000baseKX4_Full);
 349                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 350                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 351                                                              10000baseKX4_Full);
 352         }
 353         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR &&
 354             !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
 355                 ethtool_link_ksettings_add_link_mode(ks, supported,
 356                                                      10000baseKR_Full);
 357                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 358                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 359                                                              10000baseKR_Full);
 360         }
 361         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX &&
 362             !(pf->hw_features & I40E_HW_HAVE_CRT_RETIMER)) {
 363                 ethtool_link_ksettings_add_link_mode(ks, supported,
 364                                                      1000baseKX_Full);
 365                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 366                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 367                                                              1000baseKX_Full);
 368         }
 369         /* need to add 25G PHY types */
 370         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR) {
 371                 ethtool_link_ksettings_add_link_mode(ks, supported,
 372                                                      25000baseKR_Full);
 373                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 374                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 375                                                              25000baseKR_Full);
 376         }
 377         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR) {
 378                 ethtool_link_ksettings_add_link_mode(ks, supported,
 379                                                      25000baseCR_Full);
 380                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 381                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 382                                                              25000baseCR_Full);
 383         }
 384         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 385             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR) {
 386                 ethtool_link_ksettings_add_link_mode(ks, supported,
 387                                                      25000baseSR_Full);
 388                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 389                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 390                                                              25000baseSR_Full);
 391         }
 392         if (phy_types & I40E_CAP_PHY_TYPE_25GBASE_AOC ||
 393             phy_types & I40E_CAP_PHY_TYPE_25GBASE_ACC) {
 394                 ethtool_link_ksettings_add_link_mode(ks, supported,
 395                                                      25000baseCR_Full);
 396                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_25GB)
 397                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 398                                                              25000baseCR_Full);
 399         }
 400         /* need to add new 10G PHY types */
 401         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 402             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU) {
 403                 ethtool_link_ksettings_add_link_mode(ks, supported,
 404                                                      10000baseCR_Full);
 405                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 406                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 407                                                              10000baseCR_Full);
 408         }
 409         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR) {
 410                 ethtool_link_ksettings_add_link_mode(ks, supported,
 411                                                      10000baseSR_Full);
 412                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 413                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 414                                                              10000baseSR_Full);
 415         }
 416         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
 417                 ethtool_link_ksettings_add_link_mode(ks, supported,
 418                                                      10000baseLR_Full);
 419                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 420                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 421                                                              10000baseLR_Full);
 422         }
 423         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 424             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 425             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
 426                 ethtool_link_ksettings_add_link_mode(ks, supported,
 427                                                      1000baseX_Full);
 428                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 429                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 430                                                              1000baseX_Full);
 431         }
 432         /* Autoneg PHY types */
 433         if (phy_types & I40E_CAP_PHY_TYPE_SGMII ||
 434             phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4 ||
 435             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 436             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4 ||
 437             phy_types & I40E_CAP_PHY_TYPE_25GBASE_SR ||
 438             phy_types & I40E_CAP_PHY_TYPE_25GBASE_LR ||
 439             phy_types & I40E_CAP_PHY_TYPE_25GBASE_KR ||
 440             phy_types & I40E_CAP_PHY_TYPE_25GBASE_CR ||
 441             phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2 ||
 442             phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
 443             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
 444             phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR ||
 445             phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4 ||
 446             phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR ||
 447             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
 448             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 449             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL ||
 450             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
 451             phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 452             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 453             phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX ||
 454             phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
 455                 ethtool_link_ksettings_add_link_mode(ks, supported,
 456                                                      Autoneg);
 457                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 458                                                      Autoneg);
 459         }
 460 }
 461
 462 /**
 463  * i40e_get_settings_link_up - Get the Link settings for when link is up
 464  * @hw: hw structure
 465  * @ks: ethtool ksettings to fill in
 466  * @netdev: network interface device structure
 467  * @pf: pointer to physical function struct
 468  **/
 469 static void i40e_get_settings_link_up(struct i40e_hw *hw,
 470                                       struct ethtool_link_ksettings *ks,
 471                                       struct net_device *netdev,
 472                                       struct i40e_pf *pf)
 473 {
 474         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 475         struct ethtool_link_ksettings cap_ksettings;
 476         u32 link_speed = hw_link_info->link_speed;
 477
 478         /* Initialize supported and advertised settings based on phy settings */
 479         switch (hw_link_info->phy_type) {
 480         case I40E_PHY_TYPE_40GBASE_CR4:
 481         case I40E_PHY_TYPE_40GBASE_CR4_CU:
 482                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 483                 ethtool_link_ksettings_add_link_mode(ks, supported,
 484                                                      40000baseCR4_Full);
 485                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 486                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 487                                                      40000baseCR4_Full);
 488                 break;
 489         case I40E_PHY_TYPE_XLAUI:
 490         case I40E_PHY_TYPE_XLPPI:
 491         case I40E_PHY_TYPE_40GBASE_AOC:
 492                 ethtool_link_ksettings_add_link_mode(ks, supported,
 493                                                      40000baseCR4_Full);
 494                 break;
 495         case I40E_PHY_TYPE_40GBASE_SR4:
 496                 ethtool_link_ksettings_add_link_mode(ks, supported,
 497                                                      40000baseSR4_Full);
 498                 break;
 499         case I40E_PHY_TYPE_40GBASE_LR4:
 500                 ethtool_link_ksettings_add_link_mode(ks, supported,
 501                                                      40000baseLR4_Full);
 502                 break;
 503         case I40E_PHY_TYPE_25GBASE_SR:
 504         case I40E_PHY_TYPE_25GBASE_LR:
 505         case I40E_PHY_TYPE_10GBASE_SR:
 506         case I40E_PHY_TYPE_10GBASE_LR:
 507         case I40E_PHY_TYPE_1000BASE_SX:
 508         case I40E_PHY_TYPE_1000BASE_LX:
 509                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 510                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 511                 ethtool_link_ksettings_add_link_mode(ks, supported,
 512                                                      25000baseSR_Full);
 513                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 514                                                      25000baseSR_Full);
 515                 ethtool_link_ksettings_add_link_mode(ks, supported,
 516                                                      10000baseSR_Full);
 517                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 518                                                      10000baseSR_Full);
 519                 ethtool_link_ksettings_add_link_mode(ks, supported,
 520                                                      10000baseLR_Full);
 521                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 522                                                      10000baseLR_Full);
 523                 ethtool_link_ksettings_add_link_mode(ks, supported,
 524                                                      1000baseX_Full);
 525                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 526                                                      1000baseX_Full);
 527                 ethtool_link_ksettings_add_link_mode(ks, supported,
 528                                                      10000baseT_Full);
 529                 if (hw_link_info->module_type[2] &
 530                     I40E_MODULE_TYPE_1000BASE_SX ||
 531                     hw_link_info->module_type[2] &
 532                     I40E_MODULE_TYPE_1000BASE_LX) {
 533                         ethtool_link_ksettings_add_link_mode(ks, supported,
 534                                                              1000baseT_Full);
 535                         if (hw_link_info->requested_speeds &
 536                             I40E_LINK_SPEED_1GB)
 537                                 ethtool_link_ksettings_add_link_mode(
 538                                      ks, advertising, 1000baseT_Full);
 539                 }
 540                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 541                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 542                                                              10000baseT_Full);
 543                 break;
 544         case I40E_PHY_TYPE_10GBASE_T:
 545         case I40E_PHY_TYPE_1000BASE_T:
 546         case I40E_PHY_TYPE_100BASE_TX:
 547                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 548                 ethtool_link_ksettings_add_link_mode(ks, supported,
 549                                                      10000baseT_Full);
 550                 ethtool_link_ksettings_add_link_mode(ks, supported,
 551                                                      1000baseT_Full);
 552                 ethtool_link_ksettings_add_link_mode(ks, supported,
 553                                                      100baseT_Full);
 554                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 555                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 556                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 557                                                              10000baseT_Full);
 558                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 559                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 560                                                              1000baseT_Full);
 561                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 562                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 563                                                              100baseT_Full);
 564                 break;
 565         case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
 566                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 567                 ethtool_link_ksettings_add_link_mode(ks, supported,
 568                                                      1000baseT_Full);
 569                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 570                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 571                                                      1000baseT_Full);
 572                 break;
 573         case I40E_PHY_TYPE_10GBASE_CR1_CU:
 574         case I40E_PHY_TYPE_10GBASE_CR1:
 575                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 576                 ethtool_link_ksettings_add_link_mode(ks, supported,
 577                                                      10000baseT_Full);
 578                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 579                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 580                                                      10000baseT_Full);
 581                 break;
 582         case I40E_PHY_TYPE_XAUI:
 583         case I40E_PHY_TYPE_XFI:
 584         case I40E_PHY_TYPE_SFI:
 585         case I40E_PHY_TYPE_10GBASE_SFPP_CU:
 586         case I40E_PHY_TYPE_10GBASE_AOC:
 587                 ethtool_link_ksettings_add_link_mode(ks, supported,
 588                                                      10000baseT_Full);
 589                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 590                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 591                                                              10000baseT_Full);
 592                 break;
 593         case I40E_PHY_TYPE_SGMII:
 594                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 595                 ethtool_link_ksettings_add_link_mode(ks, supported,
 596                                                      1000baseT_Full);
 597                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 598                         ethtool_link_ksettings_add_link_mode(ks, advertising,
 599                                                              1000baseT_Full);
 600                 if (pf->hw_features & I40E_HW_100M_SGMII_CAPABLE) {
 601                         ethtool_link_ksettings_add_link_mode(ks, supported,
 602                                                              100baseT_Full);
 603                         if (hw_link_info->requested_speeds &
 604                             I40E_LINK_SPEED_100MB)
 605                                 ethtool_link_ksettings_add_link_mode(
 606                                       ks, advertising, 100baseT_Full);
 607                 }
 608                 break;
 609         case I40E_PHY_TYPE_40GBASE_KR4:
 610         case I40E_PHY_TYPE_25GBASE_KR:
 611         case I40E_PHY_TYPE_20GBASE_KR2:
 612         case I40E_PHY_TYPE_10GBASE_KR:
 613         case I40E_PHY_TYPE_10GBASE_KX4:
 614         case I40E_PHY_TYPE_1000BASE_KX:
 615                 ethtool_link_ksettings_add_link_mode(ks, supported,
 616                                                      40000baseKR4_Full);
 617                 ethtool_link_ksettings_add_link_mode(ks, supported,
 618                                                      25000baseKR_Full);
 619                 ethtool_link_ksettings_add_link_mode(ks, supported,
 620                                                      20000baseKR2_Full);
 621                 ethtool_link_ksettings_add_link_mode(ks, supported,
 622                                                      10000baseKR_Full);
 623                 ethtool_link_ksettings_add_link_mode(ks, supported,
 624                                                      10000baseKX4_Full);
 625                 ethtool_link_ksettings_add_link_mode(ks, supported,
 626                                                      1000baseKX_Full);
 627                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 628                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 629                                                      40000baseKR4_Full);
 630                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 631                                                      25000baseKR_Full);
 632                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 633                                                      20000baseKR2_Full);
 634                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 635                                                      10000baseKR_Full);
 636                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 637                                                      10000baseKX4_Full);
 638                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 639                                                      1000baseKX_Full);
 640                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 641                 break;
 642         case I40E_PHY_TYPE_25GBASE_CR:
 643                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 644                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 645                 ethtool_link_ksettings_add_link_mode(ks, supported,
 646                                                      25000baseCR_Full);
 647                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 648                                                      25000baseCR_Full);
 649                 break;
 650         case I40E_PHY_TYPE_25GBASE_AOC:
 651         case I40E_PHY_TYPE_25GBASE_ACC:
 652                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 653                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 654                 ethtool_link_ksettings_add_link_mode(ks, supported,
 655                                                      25000baseCR_Full);
 656
 657                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 658                                                      25000baseCR_Full);
 659                 ethtool_link_ksettings_add_link_mode(ks, supported,
 660                                                      10000baseCR_Full);
 661                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 662                                                      10000baseCR_Full);
 663                 break;
 664         default:
 665                 /* if we got here and link is up something bad is afoot */
 666                 netdev_info(netdev,
 667                             "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
 668                             hw_link_info->phy_type);
 669         }
 670
 671         /* Now that we've worked out everything that could be supported by the
 672          * current PHY type, get what is supported by the NVM and intersect
 673          * them to get what is truly supported
 674          */
 675         memset(&cap_ksettings, 0, sizeof(struct ethtool_link_ksettings));
 676         i40e_phy_type_to_ethtool(pf, &cap_ksettings);
 677         ethtool_intersect_link_masks(ks, &cap_ksettings);
 678
 679         /* Set speed and duplex */
 680         switch (link_speed) {
 681         case I40E_LINK_SPEED_40GB:
 682                 ks->base.speed = SPEED_40000;
 683                 break;
 684         case I40E_LINK_SPEED_25GB:
 685                 ks->base.speed = SPEED_25000;
 686                 break;
 687         case I40E_LINK_SPEED_20GB:
 688                 ks->base.speed = SPEED_20000;
 689                 break;
 690         case I40E_LINK_SPEED_10GB:
 691                 ks->base.speed = SPEED_10000;
 692                 break;
 693         case I40E_LINK_SPEED_1GB:
 694                 ks->base.speed = SPEED_1000;
 695                 break;
 696         case I40E_LINK_SPEED_100MB:
 697                 ks->base.speed = SPEED_100;
 698                 break;
 699         default:
 700                 break;
 701         }
 702         ks->base.duplex = DUPLEX_FULL;
 703 }
 704
 705 /**
 706  * i40e_get_settings_link_down - Get the Link settings for when link is down
 707  * @hw: hw structure
 708  * @ks: ethtool ksettings to fill in
 709  * @pf: pointer to physical function struct
 710  *
 711  * Reports link settings that can be determined when link is down
 712  **/
 713 static void i40e_get_settings_link_down(struct i40e_hw *hw,
 714                                         struct ethtool_link_ksettings *ks,
 715                                         struct i40e_pf *pf)
 716 {
 717         /* link is down and the driver needs to fall back on
 718          * supported phy types to figure out what info to display
 719          */
 720         i40e_phy_type_to_ethtool(pf, ks);
 721
 722         /* With no link speed and duplex are unknown */
 723         ks->base.speed = SPEED_UNKNOWN;
 724         ks->base.duplex = DUPLEX_UNKNOWN;
 725 }
 726
 727 /**
 728  * i40e_get_link_ksettings - Get Link Speed and Duplex settings
 729  * @netdev: network interface device structure
 730  * @ks: ethtool ksettings
 731  *
 732  * Reports speed/duplex settings based on media_type
 733  **/
 734 static int i40e_get_link_ksettings(struct net_device *netdev,
 735                                    struct ethtool_link_ksettings *ks)
 736 {
 737         struct i40e_netdev_priv *np = netdev_priv(netdev);
 738         struct i40e_pf *pf = np->vsi->back;
 739         struct i40e_hw *hw = &pf->hw;
 740         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 741         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
 742
 743         ethtool_link_ksettings_zero_link_mode(ks, supported);
 744         ethtool_link_ksettings_zero_link_mode(ks, advertising);
 745
 746         if (link_up)
 747                 i40e_get_settings_link_up(hw, ks, netdev, pf);
 748         else
 749                 i40e_get_settings_link_down(hw, ks, pf);
 750
 751         /* Now set the settings that don't rely on link being up/down */
 752         /* Set autoneg settings */
 753         ks->base.autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 754                             AUTONEG_ENABLE : AUTONEG_DISABLE);
 755
 756         /* Set media type settings */
 757         switch (hw->phy.media_type) {
 758         case I40E_MEDIA_TYPE_BACKPLANE:
 759                 ethtool_link_ksettings_add_link_mode(ks, supported, Autoneg);
 760                 ethtool_link_ksettings_add_link_mode(ks, supported, Backplane);
 761                 ethtool_link_ksettings_add_link_mode(ks, advertising, Autoneg);
 762                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 763                                                      Backplane);
 764                 ks->base.port = PORT_NONE;
 765                 break;
 766         case I40E_MEDIA_TYPE_BASET:
 767                 ethtool_link_ksettings_add_link_mode(ks, supported, TP);
 768                 ethtool_link_ksettings_add_link_mode(ks, advertising, TP);
 769                 ks->base.port = PORT_TP;
 770                 break;
 771         case I40E_MEDIA_TYPE_DA:
 772         case I40E_MEDIA_TYPE_CX4:
 773                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
 774                 ethtool_link_ksettings_add_link_mode(ks, advertising, FIBRE);
 775                 ks->base.port = PORT_DA;
 776                 break;
 777         case I40E_MEDIA_TYPE_FIBER:
 778                 ethtool_link_ksettings_add_link_mode(ks, supported, FIBRE);
 779                 ks->base.port = PORT_FIBRE;
 780                 break;
 781         case I40E_MEDIA_TYPE_UNKNOWN:
 782         default:
 783                 ks->base.port = PORT_OTHER;
 784                 break;
 785         }
 786
 787         /* Set flow control settings */
 788         ethtool_link_ksettings_add_link_mode(ks, supported, Pause);
 789
 790         switch (hw->fc.requested_mode) {
 791         case I40E_FC_FULL:
 792                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
 793                 break;
 794         case I40E_FC_TX_PAUSE:
 795                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 796                                                      Asym_Pause);
 797                 break;
 798         case I40E_FC_RX_PAUSE:
 799                 ethtool_link_ksettings_add_link_mode(ks, advertising, Pause);
 800                 ethtool_link_ksettings_add_link_mode(ks, advertising,
 801                                                      Asym_Pause);
 802                 break;
 803         default:
 804                 ethtool_link_ksettings_del_link_mode(ks, advertising, Pause);
 805                 ethtool_link_ksettings_del_link_mode(ks, advertising,
 806                                                      Asym_Pause);
 807                 break;
 808         }
 809
 810         return 0;
 811 }
 812
 813 /**
 814  * i40e_set_link_ksettings - Set Speed and Duplex
 815  * @netdev: network interface device structure
 816  * @ks: ethtool ksettings
 817  *
 818  * Set speed/duplex per media_types advertised/forced
 819  **/
 820 static int i40e_set_link_ksettings(struct net_device *netdev,
 821                                    const struct ethtool_link_ksettings *ks)
 822 {
 823         struct i40e_netdev_priv *np = netdev_priv(netdev);
 824         struct i40e_aq_get_phy_abilities_resp abilities;
 825         struct ethtool_link_ksettings safe_ks;
 826         struct ethtool_link_ksettings copy_ks;
 827         struct i40e_aq_set_phy_config config;
 828         struct i40e_pf *pf = np->vsi->back;
 829         struct i40e_vsi *vsi = np->vsi;
 830         struct i40e_hw *hw = &pf->hw;
 831         bool autoneg_changed = false;
 832         i40e_status status = 0;
 833         int timeout = 50;
 834         int err = 0;
 835         u8 autoneg;
 836
 837         /* Changing port settings is not supported if this isn't the
 838          * port's controlling PF
 839          */
 840         if (hw->partition_id != 1) {
 841                 i40e_partition_setting_complaint(pf);
 842                 return -EOPNOTSUPP;
 843         }
 844         if (vsi != pf->vsi[pf->lan_vsi])
 845                 return -EOPNOTSUPP;
 846         if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
 847             hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
 848             hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
 849             hw->phy.media_type != I40E_MEDIA_TYPE_DA &&
 850             hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
 851                 return -EOPNOTSUPP;
 852         if (hw->device_id == I40E_DEV_ID_KX_B ||
 853             hw->device_id == I40E_DEV_ID_KX_C ||
 854             hw->device_id == I40E_DEV_ID_20G_KR2 ||
 855             hw->device_id == I40E_DEV_ID_20G_KR2_A) {
 856                 netdev_info(netdev, "Changing settings is not supported on backplane.\n");
 857                 return -EOPNOTSUPP;
 858         }
 859
 860         /* copy the ksettings to copy_ks to avoid modifying the origin */
 861         memcpy(&copy_ks, ks, sizeof(struct ethtool_link_ksettings));
 862
 863         /* save autoneg out of ksettings */
 864         autoneg = copy_ks.base.autoneg;
 865
 866         memset(&safe_ks, 0, sizeof(safe_ks));
 867         /* Get link modes supported by hardware and check against modes
 868          * requested by the user.  Return an error if unsupported mode was set.
 869          */
 870         i40e_phy_type_to_ethtool(pf, &safe_ks);
 871         if (!bitmap_subset(copy_ks.link_modes.advertising,
 872                            safe_ks.link_modes.supported,
 873                            __ETHTOOL_LINK_MODE_MASK_NBITS))
 874                 return -EINVAL;
 875
 876         /* get our own copy of the bits to check against */
 877         memset(&safe_ks, 0, sizeof(struct ethtool_link_ksettings));
 878         safe_ks.base.cmd = copy_ks.base.cmd;
 879         safe_ks.base.link_mode_masks_nwords =
 880                 copy_ks.base.link_mode_masks_nwords;
 881         i40e_get_link_ksettings(netdev, &safe_ks);
 882
 883         /* set autoneg back to what it currently is */
 884         copy_ks.base.autoneg = safe_ks.base.autoneg;
 885
 886         /* If copy_ks.base and safe_ks.base are not the same now, then they are
 887          * trying to set something that we do not support.
 888          */
 889         if (memcmp(&copy_ks.base, &safe_ks.base,
 890                    sizeof(struct ethtool_link_settings)))
 891                 return -EOPNOTSUPP;
 892
 893         while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
 894                 timeout--;
 895                 if (!timeout)
 896                         return -EBUSY;
 897                 usleep_range(1000, 2000);
 898         }
 899
 900         /* Get the current phy config */
 901         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
 902                                               NULL);
 903         if (status) {
 904                 err = -EAGAIN;
 905                 goto done;
 906         }
 907
 908         /* Copy abilities to config in case autoneg is not
 909          * set below
 910          */
 911         memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
 912         config.abilities = abilities.abilities;
 913
 914         /* Check autoneg */
 915         if (autoneg == AUTONEG_ENABLE) {
 916                 /* If autoneg was not already enabled */
 917                 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
 918                         /* If autoneg is not supported, return error */
 919                         if (!ethtool_link_ksettings_test_link_mode(&safe_ks,
 920                                                                    supported,
 921                                                                    Autoneg)) {
 922                                 netdev_info(netdev, "Autoneg not supported on this phy\n");
 923                                 err = -EINVAL;
 924                                 goto done;
 925                         }
 926                         /* Autoneg is allowed to change */
 927                         config.abilities = abilities.abilities |
 928                                            I40E_AQ_PHY_ENABLE_AN;
 929                         autoneg_changed = true;
 930                 }
 931         } else {
 932                 /* If autoneg is currently enabled */
 933                 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
 934                         /* If autoneg is supported 10GBASE_T is the only PHY
 935                          * that can disable it, so otherwise return error
 936                          */
 937                         if (ethtool_link_ksettings_test_link_mode(&safe_ks,
 938                                                                   supported,
 939                                                                   Autoneg) &&
 940                             hw->phy.link_info.phy_type !=
 941                             I40E_PHY_TYPE_10GBASE_T) {
 942                                 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
 943                                 err = -EINVAL;
 944                                 goto done;
 945                         }
 946                         /* Autoneg is allowed to change */
 947                         config.abilities = abilities.abilities &
 948                                            ~I40E_AQ_PHY_ENABLE_AN;
 949                         autoneg_changed = true;
 950                 }
 951         }
 952
 953         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 954                                                   100baseT_Full))
 955                 config.link_speed |= I40E_LINK_SPEED_100MB;
 956         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 957                                                   1000baseT_Full) ||
 958             ethtool_link_ksettings_test_link_mode(ks, advertising,
 959                                                   1000baseX_Full) ||
 960             ethtool_link_ksettings_test_link_mode(ks, advertising,
 961                                                   1000baseKX_Full))
 962                 config.link_speed |= I40E_LINK_SPEED_1GB;
 963         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 964                                                   10000baseT_Full) ||
 965             ethtool_link_ksettings_test_link_mode(ks, advertising,
 966                                                   10000baseKX4_Full) ||
 967             ethtool_link_ksettings_test_link_mode(ks, advertising,
 968                                                   10000baseKR_Full) ||
 969             ethtool_link_ksettings_test_link_mode(ks, advertising,
 970                                                   10000baseCR_Full) ||
 971             ethtool_link_ksettings_test_link_mode(ks, advertising,
 972                                                   10000baseSR_Full))
 973                 config.link_speed |= I40E_LINK_SPEED_10GB;
 974         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 975                                                   20000baseKR2_Full))
 976                 config.link_speed |= I40E_LINK_SPEED_20GB;
 977         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 978                                                   25000baseCR_Full) ||
 979             ethtool_link_ksettings_test_link_mode(ks, advertising,
 980                                                   25000baseKR_Full) ||
 981             ethtool_link_ksettings_test_link_mode(ks, advertising,
 982                                                   25000baseSR_Full))
 983                 config.link_speed |= I40E_LINK_SPEED_25GB;
 984         if (ethtool_link_ksettings_test_link_mode(ks, advertising,
 985                                                   40000baseKR4_Full) ||
 986             ethtool_link_ksettings_test_link_mode(ks, advertising,
 987                                                   40000baseCR4_Full) ||
 988             ethtool_link_ksettings_test_link_mode(ks, advertising,
 989                                                   40000baseSR4_Full) ||
 990             ethtool_link_ksettings_test_link_mode(ks, advertising,
 991                                                   40000baseLR4_Full))
 992                 config.link_speed |= I40E_LINK_SPEED_40GB;
 993
 994         /* If speed didn't get set, set it to what it currently is.
 995          * This is needed because if advertise is 0 (as it is when autoneg
 996          * is disabled) then speed won't get set.
 997          */
 998         if (!config.link_speed)
 999                 config.link_speed = abilities.link_speed;
1000         if (autoneg_changed || abilities.link_speed != config.link_speed) {
1001                 /* copy over the rest of the abilities */
1002                 config.phy_type = abilities.phy_type;
1003                 config.phy_type_ext = abilities.phy_type_ext;
1004                 config.eee_capability = abilities.eee_capability;
1005                 config.eeer = abilities.eeer_val;
1006                 config.low_power_ctrl = abilities.d3_lpan;
1007                 config.fec_config = abilities.fec_cfg_curr_mod_ext_info &
1008                                     I40E_AQ_PHY_FEC_CONFIG_MASK;
1009
1010                 /* save the requested speeds */
1011                 hw->phy.link_info.requested_speeds = config.link_speed;
1012                 /* set link and auto negotiation so changes take effect */
1013                 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
1014                 /* If link is up put link down */
1015                 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
1016                         /* Tell the OS link is going down, the link will go
1017                          * back up when fw says it is ready asynchronously
1018                          */
1019                         i40e_print_link_message(vsi, false);
1020                         netif_carrier_off(netdev);
1021                         netif_tx_stop_all_queues(netdev);
1022                 }
1023
1024                 /* make the aq call */
1025                 status = i40e_aq_set_phy_config(hw, &config, NULL);
1026                 if (status) {
1027                         netdev_info(netdev,
1028                                     "Set phy config failed, err %s aq_err %s\n",
1029                                     i40e_stat_str(hw, status),
1030                                     i40e_aq_str(hw, hw->aq.asq_last_status));
1031                         err = -EAGAIN;
1032                         goto done;
1033                 }
1034
1035                 status = i40e_update_link_info(hw);
1036                 if (status)
1037                         netdev_dbg(netdev,
1038                                    "Updating link info failed with err %s aq_err %s\n",
1039                                    i40e_stat_str(hw, status),
1040                                    i40e_aq_str(hw, hw->aq.asq_last_status));
1041
1042         } else {
1043                 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
1044         }
1045
1046 done:
1047         clear_bit(__I40E_CONFIG_BUSY, pf->state);
1048
1049         return err;
1050 }
1051
1052 static int i40e_nway_reset(struct net_device *netdev)
1053 {
1054         /* restart autonegotiation */
1055         struct i40e_netdev_priv *np = netdev_priv(netdev);
1056         struct i40e_pf *pf = np->vsi->back;
1057         struct i40e_hw *hw = &pf->hw;
1058         bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
1059         i40e_status ret = 0;
1060
1061         ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
1062         if (ret) {
1063                 netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
1064                             i40e_stat_str(hw, ret),
1065                             i40e_aq_str(hw, hw->aq.asq_last_status));
1066                 return -EIO;
1067         }
1068
1069         return 0;
1070 }
1071
1072 /**
1073  * i40e_get_pauseparam -  Get Flow Control status
1074  * Return tx/rx-pause status
1075  **/
1076 static void i40e_get_pauseparam(struct net_device *netdev,
1077                                 struct ethtool_pauseparam *pause)
1078 {
1079         struct i40e_netdev_priv *np = netdev_priv(netdev);
1080         struct i40e_pf *pf = np->vsi->back;
1081         struct i40e_hw *hw = &pf->hw;
1082         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1083         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1084
1085         pause->autoneg =
1086                 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1087                   AUTONEG_ENABLE : AUTONEG_DISABLE);
1088
1089         /* PFC enabled so report LFC as off */
1090         if (dcbx_cfg->pfc.pfcenable) {
1091                 pause->rx_pause = 0;
1092                 pause->tx_pause = 0;
1093                 return;
1094         }
1095
1096         if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
1097                 pause->rx_pause = 1;
1098         } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
1099                 pause->tx_pause = 1;
1100         } else if (hw->fc.current_mode == I40E_FC_FULL) {
1101                 pause->rx_pause = 1;
1102                 pause->tx_pause = 1;
1103         }
1104 }
1105
1106 /**
1107  * i40e_set_pauseparam - Set Flow Control parameter
1108  * @netdev: network interface device structure
1109  * @pause: return tx/rx flow control status
1110  **/
1111 static int i40e_set_pauseparam(struct net_device *netdev,
1112                                struct ethtool_pauseparam *pause)
1113 {
1114         struct i40e_netdev_priv *np = netdev_priv(netdev);
1115         struct i40e_pf *pf = np->vsi->back;
1116         struct i40e_vsi *vsi = np->vsi;
1117         struct i40e_hw *hw = &pf->hw;
1118         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
1119         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
1120         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
1121         i40e_status status;
1122         u8 aq_failures;
1123         int err = 0;
1124
1125         /* Changing the port's flow control is not supported if this isn't the
1126          * port's controlling PF
1127          */
1128         if (hw->partition_id != 1) {
1129                 i40e_partition_setting_complaint(pf);
1130                 return -EOPNOTSUPP;
1131         }
1132
1133         if (vsi != pf->vsi[pf->lan_vsi])
1134                 return -EOPNOTSUPP;
1135
1136         if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
1137             AUTONEG_ENABLE : AUTONEG_DISABLE)) {
1138                 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
1139                 return -EOPNOTSUPP;
1140         }
1141
1142         /* If we have link and don't have autoneg */
1143         if (!test_bit(__I40E_DOWN, pf->state) &&
1144             !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) {
1145                 /* Send message that it might not necessarily work*/
1146                 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
1147         }
1148
1149         if (dcbx_cfg->pfc.pfcenable) {
1150                 netdev_info(netdev,
1151                             "Priority flow control enabled. Cannot set link flow control.\n");
1152                 return -EOPNOTSUPP;
1153         }
1154
1155         if (pause->rx_pause && pause->tx_pause)
1156                 hw->fc.requested_mode = I40E_FC_FULL;
1157         else if (pause->rx_pause && !pause->tx_pause)
1158                 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
1159         else if (!pause->rx_pause && pause->tx_pause)
1160                 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
1161         else if (!pause->rx_pause && !pause->tx_pause)
1162                 hw->fc.requested_mode = I40E_FC_NONE;
1163         else
1164                  return -EINVAL;
1165
1166         /* Tell the OS link is going down, the link will go back up when fw
1167          * says it is ready asynchronously
1168          */
1169         i40e_print_link_message(vsi, false);
1170         netif_carrier_off(netdev);
1171         netif_tx_stop_all_queues(netdev);
1172
1173         /* Set the fc mode and only restart an if link is up*/
1174         status = i40e_set_fc(hw, &aq_failures, link_up);
1175
1176         if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
1177                 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
1178                             i40e_stat_str(hw, status),
1179                             i40e_aq_str(hw, hw->aq.asq_last_status));
1180                 err = -EAGAIN;
1181         }
1182         if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
1183                 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
1184                             i40e_stat_str(hw, status),
1185                             i40e_aq_str(hw, hw->aq.asq_last_status));
1186                 err = -EAGAIN;
1187         }
1188         if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
1189                 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
1190                             i40e_stat_str(hw, status),
1191                             i40e_aq_str(hw, hw->aq.asq_last_status));
1192                 err = -EAGAIN;
1193         }
1194
1195         if (!test_bit(__I40E_DOWN, pf->state)) {
1196                 /* Give it a little more time to try to come back */
1197                 msleep(75);
1198                 if (!test_bit(__I40E_DOWN, pf->state))
1199                         return i40e_nway_reset(netdev);
1200         }
1201
1202         return err;
1203 }
1204
1205 static u32 i40e_get_msglevel(struct net_device *netdev)
1206 {
1207         struct i40e_netdev_priv *np = netdev_priv(netdev);
1208         struct i40e_pf *pf = np->vsi->back;
1209         u32 debug_mask = pf->hw.debug_mask;
1210
1211         if (debug_mask)
1212                 netdev_info(netdev, "i40e debug_mask: 0x%08X\n", debug_mask);
1213
1214         return pf->msg_enable;
1215 }
1216
1217 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
1218 {
1219         struct i40e_netdev_priv *np = netdev_priv(netdev);
1220         struct i40e_pf *pf = np->vsi->back;
1221
1222         if (I40E_DEBUG_USER & data)
1223                 pf->hw.debug_mask = data;
1224         else
1225                 pf->msg_enable = data;
1226 }
1227
1228 static int i40e_get_regs_len(struct net_device *netdev)
1229 {
1230         int reg_count = 0;
1231         int i;
1232
1233         for (i = 0; i40e_reg_list[i].offset != 0; i++)
1234                 reg_count += i40e_reg_list[i].elements;
1235
1236         return reg_count * sizeof(u32);
1237 }
1238
1239 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
1240                           void *p)
1241 {
1242         struct i40e_netdev_priv *np = netdev_priv(netdev);
1243         struct i40e_pf *pf = np->vsi->back;
1244         struct i40e_hw *hw = &pf->hw;
1245         u32 *reg_buf = p;
1246         unsigned int i, j, ri;
1247         u32 reg;
1248
1249         /* Tell ethtool which driver-version-specific regs output we have.
1250          *
1251          * At some point, if we have ethtool doing special formatting of
1252          * this data, it will rely on this version number to know how to
1253          * interpret things.  Hence, this needs to be updated if/when the
1254          * diags register table is changed.
1255          */
1256         regs->version = 1;
1257
1258         /* loop through the diags reg table for what to print */
1259         ri = 0;
1260         for (i = 0; i40e_reg_list[i].offset != 0; i++) {
1261                 for (j = 0; j < i40e_reg_list[i].elements; j++) {
1262                         reg = i40e_reg_list[i].offset
1263                                 + (j * i40e_reg_list[i].stride);
1264                         reg_buf[ri++] = rd32(hw, reg);
1265                 }
1266         }
1267
1268 }
1269
1270 static int i40e_get_eeprom(struct net_device *netdev,
1271                            struct ethtool_eeprom *eeprom, u8 *bytes)
1272 {
1273         struct i40e_netdev_priv *np = netdev_priv(netdev);
1274         struct i40e_hw *hw = &np->vsi->back->hw;
1275         struct i40e_pf *pf = np->vsi->back;
1276         int ret_val = 0, len, offset;
1277         u8 *eeprom_buff;
1278         u16 i, sectors;
1279         bool last;
1280         u32 magic;
1281
1282 #define I40E_NVM_SECTOR_SIZE  4096
1283         if (eeprom->len == 0)
1284                 return -EINVAL;
1285
1286         /* check for NVMUpdate access method */
1287         magic = hw->vendor_id | (hw->device_id << 16);
1288         if (eeprom->magic && eeprom->magic != magic) {
1289                 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1290                 int errno = 0;
1291
1292                 /* make sure it is the right magic for NVMUpdate */
1293                 if ((eeprom->magic >> 16) != hw->device_id)
1294                         errno = -EINVAL;
1295                 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1296                          test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1297                         errno = -EBUSY;
1298                 else
1299                         ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1300
1301                 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1302                         dev_info(&pf->pdev->dev,
1303                                  "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1304                                  ret_val, hw->aq.asq_last_status, errno,
1305                                  (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1306                                  cmd->offset, cmd->data_size);
1307
1308                 return errno;
1309         }
1310
1311         /* normal ethtool get_eeprom support */
1312         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1313
1314         eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1315         if (!eeprom_buff)
1316                 return -ENOMEM;
1317
1318         ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1319         if (ret_val) {
1320                 dev_info(&pf->pdev->dev,
1321                          "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1322                          ret_val, hw->aq.asq_last_status);
1323                 goto free_buff;
1324         }
1325
1326         sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1327         sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1328         len = I40E_NVM_SECTOR_SIZE;
1329         last = false;
1330         for (i = 0; i < sectors; i++) {
1331                 if (i == (sectors - 1)) {
1332                         len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1333                         last = true;
1334                 }
1335                 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1336                 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1337                                 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1338                                 last, NULL);
1339                 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1340                         dev_info(&pf->pdev->dev,
1341                                  "read NVM failed, invalid offset 0x%x\n",
1342                                  offset);
1343                         break;
1344                 } else if (ret_val &&
1345                            hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1346                         dev_info(&pf->pdev->dev,
1347                                  "read NVM failed, access, offset 0x%x\n",
1348                                  offset);
1349                         break;
1350                 } else if (ret_val) {
1351                         dev_info(&pf->pdev->dev,
1352                                  "read NVM failed offset %d err=%d status=0x%x\n",
1353                                  offset, ret_val, hw->aq.asq_last_status);
1354                         break;
1355                 }
1356         }
1357
1358         i40e_release_nvm(hw);
1359         memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1360 free_buff:
1361         kfree(eeprom_buff);
1362         return ret_val;
1363 }
1364
1365 static int i40e_get_eeprom_len(struct net_device *netdev)
1366 {
1367         struct i40e_netdev_priv *np = netdev_priv(netdev);
1368         struct i40e_hw *hw = &np->vsi->back->hw;
1369         u32 val;
1370
1371 #define X722_EEPROM_SCOPE_LIMIT 0x5B9FFF
1372         if (hw->mac.type == I40E_MAC_X722) {
1373                 val = X722_EEPROM_SCOPE_LIMIT + 1;
1374                 return val;
1375         }
1376         val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1377                 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1378                 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1379         /* register returns value in power of 2, 64Kbyte chunks. */
1380         val = (64 * 1024) * BIT(val);
1381         return val;
1382 }
1383
1384 static int i40e_set_eeprom(struct net_device *netdev,
1385                            struct ethtool_eeprom *eeprom, u8 *bytes)
1386 {
1387         struct i40e_netdev_priv *np = netdev_priv(netdev);
1388         struct i40e_hw *hw = &np->vsi->back->hw;
1389         struct i40e_pf *pf = np->vsi->back;
1390         struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1391         int ret_val = 0;
1392         int errno = 0;
1393         u32 magic;
1394
1395         /* normal ethtool set_eeprom is not supported */
1396         magic = hw->vendor_id | (hw->device_id << 16);
1397         if (eeprom->magic == magic)
1398                 errno = -EOPNOTSUPP;
1399         /* check for NVMUpdate access method */
1400         else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1401                 errno = -EINVAL;
1402         else if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
1403                  test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
1404                 errno = -EBUSY;
1405         else
1406                 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1407
1408         if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1409                 dev_info(&pf->pdev->dev,
1410                          "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1411                          ret_val, hw->aq.asq_last_status, errno,
1412                          (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1413                          cmd->offset, cmd->data_size);
1414
1415         return errno;
1416 }
1417
1418 static void i40e_get_drvinfo(struct net_device *netdev,
1419                              struct ethtool_drvinfo *drvinfo)
1420 {
1421         struct i40e_netdev_priv *np = netdev_priv(netdev);
1422         struct i40e_vsi *vsi = np->vsi;
1423         struct i40e_pf *pf = vsi->back;
1424
1425         strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1426         strlcpy(drvinfo->version, i40e_driver_version_str,
1427                 sizeof(drvinfo->version));
1428         strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
1429                 sizeof(drvinfo->fw_version));
1430         strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1431                 sizeof(drvinfo->bus_info));
1432         drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
1433         if (pf->hw.pf_id == 0)
1434                 drvinfo->n_priv_flags += I40E_GL_PRIV_FLAGS_STR_LEN;
1435 }
1436
1437 static void i40e_get_ringparam(struct net_device *netdev,
1438                                struct ethtool_ringparam *ring)
1439 {
1440         struct i40e_netdev_priv *np = netdev_priv(netdev);
1441         struct i40e_pf *pf = np->vsi->back;
1442         struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1443
1444         ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1445         ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1446         ring->rx_mini_max_pending = 0;
1447         ring->rx_jumbo_max_pending = 0;
1448         ring->rx_pending = vsi->rx_rings[0]->count;
1449         ring->tx_pending = vsi->tx_rings[0]->count;
1450         ring->rx_mini_pending = 0;
1451         ring->rx_jumbo_pending = 0;
1452 }
1453
1454 static bool i40e_active_tx_ring_index(struct i40e_vsi *vsi, u16 index)
1455 {
1456         if (i40e_enabled_xdp_vsi(vsi)) {
1457                 return index < vsi->num_queue_pairs ||
1458                         (index >= vsi->alloc_queue_pairs &&
1459                          index < vsi->alloc_queue_pairs + vsi->num_queue_pairs);
1460         }
1461
1462         return index < vsi->num_queue_pairs;
1463 }
1464
1465 static int i40e_set_ringparam(struct net_device *netdev,
1466                               struct ethtool_ringparam *ring)
1467 {
1468         struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1469         struct i40e_netdev_priv *np = netdev_priv(netdev);
1470         struct i40e_hw *hw = &np->vsi->back->hw;
1471         struct i40e_vsi *vsi = np->vsi;
1472         struct i40e_pf *pf = vsi->back;
1473         u32 new_rx_count, new_tx_count;
1474         u16 tx_alloc_queue_pairs;
1475         int timeout = 50;
1476         int i, err = 0;
1477
1478         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1479                 return -EINVAL;
1480
1481         if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1482             ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1483             ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1484             ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1485                 netdev_info(netdev,
1486                             "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1487                             ring->tx_pending, ring->rx_pending,
1488                             I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1489                 return -EINVAL;
1490         }
1491
1492         new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1493         new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1494
1495         /* if nothing to do return success */
1496         if ((new_tx_count == vsi->tx_rings[0]->count) &&
1497             (new_rx_count == vsi->rx_rings[0]->count))
1498                 return 0;
1499
1500         while (test_and_set_bit(__I40E_CONFIG_BUSY, pf->state)) {
1501                 timeout--;
1502                 if (!timeout)
1503                         return -EBUSY;
1504                 usleep_range(1000, 2000);
1505         }
1506
1507         if (!netif_running(vsi->netdev)) {
1508                 /* simple case - set for the next time the netdev is started */
1509                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1510                         vsi->tx_rings[i]->count = new_tx_count;
1511                         vsi->rx_rings[i]->count = new_rx_count;
1512                         if (i40e_enabled_xdp_vsi(vsi))
1513                                 vsi->xdp_rings[i]->count = new_tx_count;
1514                 }
1515                 goto done;
1516         }
1517
1518         /* We can't just free everything and then setup again,
1519          * because the ISRs in MSI-X mode get passed pointers
1520          * to the Tx and Rx ring structs.
1521          */
1522
1523         /* alloc updated Tx and XDP Tx resources */
1524         tx_alloc_queue_pairs = vsi->alloc_queue_pairs *
1525                                (i40e_enabled_xdp_vsi(vsi) ? 2 : 1);
1526         if (new_tx_count != vsi->tx_rings[0]->count) {
1527                 netdev_info(netdev,
1528                             "Changing Tx descriptor count from %d to %d.\n",
1529                             vsi->tx_rings[0]->count, new_tx_count);
1530                 tx_rings = kcalloc(tx_alloc_queue_pairs,
1531                                    sizeof(struct i40e_ring), GFP_KERNEL);
1532                 if (!tx_rings) {
1533                         err = -ENOMEM;
1534                         goto done;
1535                 }
1536
1537                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
1538                         if (!i40e_active_tx_ring_index(vsi, i))
1539                                 continue;
1540
1541                         tx_rings[i] = *vsi->tx_rings[i];
1542                         tx_rings[i].count = new_tx_count;
1543                         /* the desc and bi pointers will be reallocated in the
1544                          * setup call
1545                          */
1546                         tx_rings[i].desc = NULL;
1547                         tx_rings[i].rx_bi = NULL;
1548                         err = i40e_setup_tx_descriptors(&tx_rings[i]);
1549                         if (err) {
1550                                 while (i) {
1551                                         i--;
1552                                         if (!i40e_active_tx_ring_index(vsi, i))
1553                                                 continue;
1554                                         i40e_free_tx_resources(&tx_rings[i]);
1555                                 }
1556                                 kfree(tx_rings);
1557                                 tx_rings = NULL;
1558
1559                                 goto done;
1560                         }
1561                 }
1562         }
1563
1564         /* alloc updated Rx resources */
1565         if (new_rx_count != vsi->rx_rings[0]->count) {
1566                 netdev_info(netdev,
1567                             "Changing Rx descriptor count from %d to %d\n",
1568                             vsi->rx_rings[0]->count, new_rx_count);
1569                 rx_rings = kcalloc(vsi->alloc_queue_pairs,
1570                                    sizeof(struct i40e_ring), GFP_KERNEL);
1571                 if (!rx_rings) {
1572                         err = -ENOMEM;
1573                         goto free_tx;
1574                 }
1575
1576                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1577                         struct i40e_ring *ring;
1578                         u16 unused;
1579
1580                         /* clone ring and setup updated count */
1581                         rx_rings[i] = *vsi->rx_rings[i];
1582                         rx_rings[i].count = new_rx_count;
1583                         /* the desc and bi pointers will be reallocated in the
1584                          * setup call
1585                          */
1586                         rx_rings[i].desc = NULL;
1587                         rx_rings[i].rx_bi = NULL;
1588                         /* this is to allow wr32 to have something to write to
1589                          * during early allocation of Rx buffers
1590                          */
1591                         rx_rings[i].tail = hw->hw_addr + I40E_PRTGEN_STATUS;
1592                         err = i40e_setup_rx_descriptors(&rx_rings[i]);
1593                         if (err)
1594                                 goto rx_unwind;
1595
1596                         /* now allocate the Rx buffers to make sure the OS
1597                          * has enough memory, any failure here means abort
1598                          */
1599                         ring = &rx_rings[i];
1600                         unused = I40E_DESC_UNUSED(ring);
1601                         err = i40e_alloc_rx_buffers(ring, unused);
1602 rx_unwind:
1603                         if (err) {
1604                                 do {
1605                                         i40e_free_rx_resources(&rx_rings[i]);
1606                                 } while (i--);
1607                                 kfree(rx_rings);
1608                                 rx_rings = NULL;
1609
1610                                 goto free_tx;
1611                         }
1612                 }
1613         }
1614
1615         /* Bring interface down, copy in the new ring info,
1616          * then restore the interface
1617          */
1618         i40e_down(vsi);
1619
1620         if (tx_rings) {
1621                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
1622                         if (i40e_active_tx_ring_index(vsi, i)) {
1623                                 i40e_free_tx_resources(vsi->tx_rings[i]);
1624                                 *vsi->tx_rings[i] = tx_rings[i];
1625                         }
1626                 }
1627                 kfree(tx_rings);
1628                 tx_rings = NULL;
1629         }
1630
1631         if (rx_rings) {
1632                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1633                         i40e_free_rx_resources(vsi->rx_rings[i]);
1634                         /* get the real tail offset */
1635                         rx_rings[i].tail = vsi->rx_rings[i]->tail;
1636                         /* this is to fake out the allocation routine
1637                          * into thinking it has to realloc everything
1638                          * but the recycling logic will let us re-use
1639                          * the buffers allocated above
1640                          */
1641                         rx_rings[i].next_to_use = 0;
1642                         rx_rings[i].next_to_clean = 0;
1643                         rx_rings[i].next_to_alloc = 0;
1644                         /* do a struct copy */
1645                         *vsi->rx_rings[i] = rx_rings[i];
1646                 }
1647                 kfree(rx_rings);
1648                 rx_rings = NULL;
1649         }
1650
1651         i40e_up(vsi);
1652
1653 free_tx:
1654         /* error cleanup if the Rx allocations failed after getting Tx */
1655         if (tx_rings) {
1656                 for (i = 0; i < tx_alloc_queue_pairs; i++) {
1657                         if (i40e_active_tx_ring_index(vsi, i))
1658                                 i40e_free_tx_resources(vsi->tx_rings[i]);
1659                 }
1660                 kfree(tx_rings);
1661                 tx_rings = NULL;
1662         }
1663
1664 done:
1665         clear_bit(__I40E_CONFIG_BUSY, pf->state);
1666
1667         return err;
1668 }
1669
1670 static int i40e_get_sset_count(struct net_device *netdev, int sset)
1671 {
1672         struct i40e_netdev_priv *np = netdev_priv(netdev);
1673         struct i40e_vsi *vsi = np->vsi;
1674         struct i40e_pf *pf = vsi->back;
1675
1676         switch (sset) {
1677         case ETH_SS_TEST:
1678                 return I40E_TEST_LEN;
1679         case ETH_SS_STATS:
1680                 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) {
1681                         int len = I40E_PF_STATS_LEN(netdev);
1682
1683                         if ((pf->lan_veb != I40E_NO_VEB) &&
1684                             (pf->flags & I40E_FLAG_VEB_STATS_ENABLED))
1685                                 len += I40E_VEB_STATS_TOTAL;
1686                         return len;
1687                 } else {
1688                         return I40E_VSI_STATS_LEN(netdev);
1689                 }
1690         case ETH_SS_PRIV_FLAGS:
1691                 return I40E_PRIV_FLAGS_STR_LEN +
1692                         (pf->hw.pf_id == 0 ? I40E_GL_PRIV_FLAGS_STR_LEN : 0);
1693         default:
1694                 return -EOPNOTSUPP;
1695         }
1696 }
1697
1698 static void i40e_get_ethtool_stats(struct net_device *netdev,
1699                                    struct ethtool_stats *stats, u64 *data)
1700 {
1701         struct i40e_netdev_priv *np = netdev_priv(netdev);
1702         struct i40e_ring *tx_ring, *rx_ring;
1703         struct i40e_vsi *vsi = np->vsi;
1704         struct i40e_pf *pf = vsi->back;
1705         unsigned int j;
1706         int i = 0;
1707         char *p;
1708         struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi);
1709         unsigned int start;
1710
1711         i40e_update_stats(vsi);
1712
1713         for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) {
1714                 p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset;
1715                 data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat ==
1716                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1717         }
1718         for (j = 0; j < I40E_MISC_STATS_LEN; j++) {
1719                 p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset;
1720                 data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat ==
1721                             sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1722         }
1723         rcu_read_lock();
1724         for (j = 0; j < vsi->num_queue_pairs; j++) {
1725                 tx_ring = READ_ONCE(vsi->tx_rings[j]);
1726
1727                 if (!tx_ring)
1728                         continue;
1729
1730                 /* process Tx ring statistics */
1731                 do {
1732                         start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
1733                         data[i] = tx_ring->stats.packets;
1734                         data[i + 1] = tx_ring->stats.bytes;
1735                 } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
1736                 i += 2;
1737
1738                 /* Rx ring is the 2nd half of the queue pair */
1739                 rx_ring = &tx_ring[1];
1740                 do {
1741                         start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
1742                         data[i] = rx_ring->stats.packets;
1743                         data[i + 1] = rx_ring->stats.bytes;
1744                 } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
1745                 i += 2;
1746         }
1747         rcu_read_unlock();
1748         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1749                 return;
1750
1751         if ((pf->lan_veb != I40E_NO_VEB) &&
1752             (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
1753                 struct i40e_veb *veb = pf->veb[pf->lan_veb];
1754
1755                 for (j = 0; j < I40E_VEB_STATS_LEN; j++) {
1756                         p = (char *)veb;
1757                         p += i40e_gstrings_veb_stats[j].stat_offset;
1758                         data[i++] = (i40e_gstrings_veb_stats[j].sizeof_stat ==
1759                                      sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1760                 }
1761                 for (j = 0; j < I40E_MAX_TRAFFIC_CLASS; j++) {
1762                         data[i++] = veb->tc_stats.tc_tx_packets[j];
1763                         data[i++] = veb->tc_stats.tc_tx_bytes[j];
1764                         data[i++] = veb->tc_stats.tc_rx_packets[j];
1765                         data[i++] = veb->tc_stats.tc_rx_bytes[j];
1766                 }
1767         }
1768         for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
1769                 p = (char *)pf + i40e_gstrings_stats[j].stat_offset;
1770                 data[i++] = (i40e_gstrings_stats[j].sizeof_stat ==
1771                              sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1772         }
1773         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1774                 data[i++] = pf->stats.priority_xon_tx[j];
1775                 data[i++] = pf->stats.priority_xoff_tx[j];
1776         }
1777         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1778                 data[i++] = pf->stats.priority_xon_rx[j];
1779                 data[i++] = pf->stats.priority_xoff_rx[j];
1780         }
1781         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++)
1782                 data[i++] = pf->stats.priority_xon_2_xoff[j];
1783 }
1784
1785 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
1786                              u8 *data)
1787 {
1788         struct i40e_netdev_priv *np = netdev_priv(netdev);
1789         struct i40e_vsi *vsi = np->vsi;
1790         struct i40e_pf *pf = vsi->back;
1791         char *p = (char *)data;
1792         unsigned int i;
1793
1794         switch (stringset) {
1795         case ETH_SS_TEST:
1796                 memcpy(data, i40e_gstrings_test,
1797                        I40E_TEST_LEN * ETH_GSTRING_LEN);
1798                 break;
1799         case ETH_SS_STATS:
1800                 for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) {
1801                         snprintf(p, ETH_GSTRING_LEN, "%s",
1802                                  i40e_gstrings_net_stats[i].stat_string);
1803                         p += ETH_GSTRING_LEN;
1804                 }
1805                 for (i = 0; i < I40E_MISC_STATS_LEN; i++) {
1806                         snprintf(p, ETH_GSTRING_LEN, "%s",
1807                                  i40e_gstrings_misc_stats[i].stat_string);
1808                         p += ETH_GSTRING_LEN;
1809                 }
1810                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1811                         snprintf(p, ETH_GSTRING_LEN, "tx-%d.tx_packets", i);
1812                         p += ETH_GSTRING_LEN;
1813                         snprintf(p, ETH_GSTRING_LEN, "tx-%d.tx_bytes", i);
1814                         p += ETH_GSTRING_LEN;
1815                         snprintf(p, ETH_GSTRING_LEN, "rx-%d.rx_packets", i);
1816                         p += ETH_GSTRING_LEN;
1817                         snprintf(p, ETH_GSTRING_LEN, "rx-%d.rx_bytes", i);
1818                         p += ETH_GSTRING_LEN;
1819                 }
1820                 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1821                         return;
1822
1823                 if ((pf->lan_veb != I40E_NO_VEB) &&
1824                     (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
1825                         for (i = 0; i < I40E_VEB_STATS_LEN; i++) {
1826                                 snprintf(p, ETH_GSTRING_LEN, "veb.%s",
1827                                         i40e_gstrings_veb_stats[i].stat_string);
1828                                 p += ETH_GSTRING_LEN;
1829                         }
1830                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1831                                 snprintf(p, ETH_GSTRING_LEN,
1832                                          "veb.tc_%d_tx_packets", i);
1833                                 p += ETH_GSTRING_LEN;
1834                                 snprintf(p, ETH_GSTRING_LEN,
1835                                          "veb.tc_%d_tx_bytes", i);
1836                                 p += ETH_GSTRING_LEN;
1837                                 snprintf(p, ETH_GSTRING_LEN,
1838                                          "veb.tc_%d_rx_packets", i);
1839                                 p += ETH_GSTRING_LEN;
1840                                 snprintf(p, ETH_GSTRING_LEN,
1841                                          "veb.tc_%d_rx_bytes", i);
1842                                 p += ETH_GSTRING_LEN;
1843                         }
1844                 }
1845                 for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) {
1846                         snprintf(p, ETH_GSTRING_LEN, "port.%s",
1847                                  i40e_gstrings_stats[i].stat_string);
1848                         p += ETH_GSTRING_LEN;
1849                 }
1850                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1851                         snprintf(p, ETH_GSTRING_LEN,
1852                                  "port.tx_priority_%d_xon", i);
1853                         p += ETH_GSTRING_LEN;
1854                         snprintf(p, ETH_GSTRING_LEN,
1855                                  "port.tx_priority_%d_xoff", i);
1856                         p += ETH_GSTRING_LEN;
1857                 }
1858                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1859                         snprintf(p, ETH_GSTRING_LEN,
1860                                  "port.rx_priority_%d_xon", i);
1861                         p += ETH_GSTRING_LEN;
1862                         snprintf(p, ETH_GSTRING_LEN,
1863                                  "port.rx_priority_%d_xoff", i);
1864                         p += ETH_GSTRING_LEN;
1865                 }
1866                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1867                         snprintf(p, ETH_GSTRING_LEN,
1868                                  "port.rx_priority_%d_xon_2_xoff", i);
1869                         p += ETH_GSTRING_LEN;
1870                 }
1871                 /* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */
1872                 break;
1873         case ETH_SS_PRIV_FLAGS:
1874                 for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
1875                         snprintf(p, ETH_GSTRING_LEN, "%s",
1876                                  i40e_gstrings_priv_flags[i].flag_string);
1877                         p += ETH_GSTRING_LEN;
1878                 }
1879                 if (pf->hw.pf_id != 0)
1880                         break;
1881                 for (i = 0; i < I40E_GL_PRIV_FLAGS_STR_LEN; i++) {
1882                         snprintf(p, ETH_GSTRING_LEN, "%s",
1883                                  i40e_gl_gstrings_priv_flags[i].flag_string);
1884                         p += ETH_GSTRING_LEN;
1885                 }
1886                 break;
1887         default:
1888                 break;
1889         }
1890 }
1891
1892 static int i40e_get_ts_info(struct net_device *dev,
1893                             struct ethtool_ts_info *info)
1894 {
1895         struct i40e_pf *pf = i40e_netdev_to_pf(dev);
1896
1897         /* only report HW timestamping if PTP is enabled */
1898         if (!(pf->flags & I40E_FLAG_PTP))
1899                 return ethtool_op_get_ts_info(dev, info);
1900
1901         info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
1902                                 SOF_TIMESTAMPING_RX_SOFTWARE |
1903                                 SOF_TIMESTAMPING_SOFTWARE |
1904                                 SOF_TIMESTAMPING_TX_HARDWARE |
1905                                 SOF_TIMESTAMPING_RX_HARDWARE |
1906                                 SOF_TIMESTAMPING_RAW_HARDWARE;
1907
1908         if (pf->ptp_clock)
1909                 info->phc_index = ptp_clock_index(pf->ptp_clock);
1910         else
1911                 info->phc_index = -1;
1912
1913         info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
1914
1915         info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
1916                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
1917                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_SYNC) |
1918                            BIT(HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ);
1919
1920         if (pf->hw_features & I40E_HW_PTP_L4_CAPABLE)
1921                 info->rx_filters |= BIT(HWTSTAMP_FILTER_PTP_V1_L4_SYNC) |
1922                                     BIT(HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) |
1923                                     BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) |
1924                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT) |
1925                                     BIT(HWTSTAMP_FILTER_PTP_V2_SYNC) |
1926                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_SYNC) |
1927                                     BIT(HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) |
1928                                     BIT(HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ);
1929
1930         return 0;
1931 }
1932
1933 static int i40e_link_test(struct net_device *netdev, u64 *data)
1934 {
1935         struct i40e_netdev_priv *np = netdev_priv(netdev);
1936         struct i40e_pf *pf = np->vsi->back;
1937         i40e_status status;
1938         bool link_up = false;
1939
1940         netif_info(pf, hw, netdev, "link test\n");
1941         status = i40e_get_link_status(&pf->hw, &link_up);
1942         if (status) {
1943                 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
1944                 *data = 1;
1945                 return *data;
1946         }
1947
1948         if (link_up)
1949                 *data = 0;
1950         else
1951                 *data = 1;
1952
1953         return *data;
1954 }
1955
1956 static int i40e_reg_test(struct net_device *netdev, u64 *data)
1957 {
1958         struct i40e_netdev_priv *np = netdev_priv(netdev);
1959         struct i40e_pf *pf = np->vsi->back;
1960
1961         netif_info(pf, hw, netdev, "register test\n");
1962         *data = i40e_diag_reg_test(&pf->hw);
1963
1964         return *data;
1965 }
1966
1967 static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
1968 {
1969         struct i40e_netdev_priv *np = netdev_priv(netdev);
1970         struct i40e_pf *pf = np->vsi->back;
1971
1972         netif_info(pf, hw, netdev, "eeprom test\n");
1973         *data = i40e_diag_eeprom_test(&pf->hw);
1974
1975         /* forcebly clear the NVM Update state machine */
1976         pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
1977
1978         return *data;
1979 }
1980
1981 static int i40e_intr_test(struct net_device *netdev, u64 *data)
1982 {
1983         struct i40e_netdev_priv *np = netdev_priv(netdev);
1984         struct i40e_pf *pf = np->vsi->back;
1985         u16 swc_old = pf->sw_int_count;
1986
1987         netif_info(pf, hw, netdev, "interrupt test\n");
1988         wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
1989              (I40E_PFINT_DYN_CTL0_INTENA_MASK |
1990               I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
1991               I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
1992               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
1993               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
1994         usleep_range(1000, 2000);
1995         *data = (swc_old == pf->sw_int_count);
1996
1997         return *data;
1998 }
1999
2000 static inline bool i40e_active_vfs(struct i40e_pf *pf)
2001 {
2002         struct i40e_vf *vfs = pf->vf;
2003         int i;
2004
2005         for (i = 0; i < pf->num_alloc_vfs; i++)
2006                 if (test_bit(I40E_VF_STATE_ACTIVE, &vfs[i].vf_states))
2007                         return true;
2008         return false;
2009 }
2010
2011 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
2012 {
2013         return !!i40e_find_vsi_by_type(pf, I40E_VSI_VMDQ2);
2014 }
2015
2016 static void i40e_diag_test(struct net_device *netdev,
2017                            struct ethtool_test *eth_test, u64 *data)
2018 {
2019         struct i40e_netdev_priv *np = netdev_priv(netdev);
2020         bool if_running = netif_running(netdev);
2021         struct i40e_pf *pf = np->vsi->back;
2022
2023         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
2024                 /* Offline tests */
2025                 netif_info(pf, drv, netdev, "offline testing starting\n");
2026
2027                 set_bit(__I40E_TESTING, pf->state);
2028
2029                 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
2030                         dev_warn(&pf->pdev->dev,
2031                                  "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
2032                         data[I40E_ETH_TEST_REG]         = 1;
2033                         data[I40E_ETH_TEST_EEPROM]      = 1;
2034                         data[I40E_ETH_TEST_INTR]        = 1;
2035                         data[I40E_ETH_TEST_LINK]        = 1;
2036                         eth_test->flags |= ETH_TEST_FL_FAILED;
2037                         clear_bit(__I40E_TESTING, pf->state);
2038                         goto skip_ol_tests;
2039                 }
2040
2041                 /* If the device is online then take it offline */
2042                 if (if_running)
2043                         /* indicate we're in test mode */
2044                         i40e_close(netdev);
2045                 else
2046                         /* This reset does not affect link - if it is
2047                          * changed to a type of reset that does affect
2048                          * link then the following link test would have
2049                          * to be moved to before the reset
2050                          */
2051                         i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2052
2053                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2054                         eth_test->flags |= ETH_TEST_FL_FAILED;
2055
2056                 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
2057                         eth_test->flags |= ETH_TEST_FL_FAILED;
2058
2059                 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
2060                         eth_test->flags |= ETH_TEST_FL_FAILED;
2061
2062                 /* run reg test last, a reset is required after it */
2063                 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
2064                         eth_test->flags |= ETH_TEST_FL_FAILED;
2065
2066                 clear_bit(__I40E_TESTING, pf->state);
2067                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
2068
2069                 if (if_running)
2070                         i40e_open(netdev);
2071         } else {
2072                 /* Online tests */
2073                 netif_info(pf, drv, netdev, "online testing starting\n");
2074
2075                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
2076                         eth_test->flags |= ETH_TEST_FL_FAILED;
2077
2078                 /* Offline only tests, not run in online; pass by default */
2079                 data[I40E_ETH_TEST_REG] = 0;
2080                 data[I40E_ETH_TEST_EEPROM] = 0;
2081                 data[I40E_ETH_TEST_INTR] = 0;
2082         }
2083
2084 skip_ol_tests:
2085
2086         netif_info(pf, drv, netdev, "testing finished\n");
2087 }
2088
2089 static void i40e_get_wol(struct net_device *netdev,
2090                          struct ethtool_wolinfo *wol)
2091 {
2092         struct i40e_netdev_priv *np = netdev_priv(netdev);
2093         struct i40e_pf *pf = np->vsi->back;
2094         struct i40e_hw *hw = &pf->hw;
2095         u16 wol_nvm_bits;
2096
2097         /* NVM bit on means WoL disabled for the port */
2098         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2099         if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
2100                 wol->supported = 0;
2101                 wol->wolopts = 0;
2102         } else {
2103                 wol->supported = WAKE_MAGIC;
2104                 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
2105         }
2106 }
2107
2108 /**
2109  * i40e_set_wol - set the WakeOnLAN configuration
2110  * @netdev: the netdev in question
2111  * @wol: the ethtool WoL setting data
2112  **/
2113 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
2114 {
2115         struct i40e_netdev_priv *np = netdev_priv(netdev);
2116         struct i40e_pf *pf = np->vsi->back;
2117         struct i40e_vsi *vsi = np->vsi;
2118         struct i40e_hw *hw = &pf->hw;
2119         u16 wol_nvm_bits;
2120
2121         /* WoL not supported if this isn't the controlling PF on the port */
2122         if (hw->partition_id != 1) {
2123                 i40e_partition_setting_complaint(pf);
2124                 return -EOPNOTSUPP;
2125         }
2126
2127         if (vsi != pf->vsi[pf->lan_vsi])
2128                 return -EOPNOTSUPP;
2129
2130         /* NVM bit on means WoL disabled for the port */
2131         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
2132         if (BIT(hw->port) & wol_nvm_bits)
2133                 return -EOPNOTSUPP;
2134
2135         /* only magic packet is supported */
2136         if (wol->wolopts && (wol->wolopts != WAKE_MAGIC))
2137                 return -EOPNOTSUPP;
2138
2139         /* is this a new value? */
2140         if (pf->wol_en != !!wol->wolopts) {
2141                 pf->wol_en = !!wol->wolopts;
2142                 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
2143         }
2144
2145         return 0;
2146 }
2147
2148 static int i40e_set_phys_id(struct net_device *netdev,
2149                             enum ethtool_phys_id_state state)
2150 {
2151         struct i40e_netdev_priv *np = netdev_priv(netdev);
2152         i40e_status ret = 0;
2153         struct i40e_pf *pf = np->vsi->back;
2154         struct i40e_hw *hw = &pf->hw;
2155         int blink_freq = 2;
2156         u16 temp_status;
2157
2158         switch (state) {
2159         case ETHTOOL_ID_ACTIVE:
2160                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2161                         pf->led_status = i40e_led_get(hw);
2162                 } else {
2163                         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2164                                 i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL,
2165                                                       NULL);
2166                         ret = i40e_led_get_phy(hw, &temp_status,
2167                                                &pf->phy_led_val);
2168                         pf->led_status = temp_status;
2169                 }
2170                 return blink_freq;
2171         case ETHTOOL_ID_ON:
2172                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2173                         i40e_led_set(hw, 0xf, false);
2174                 else
2175                         ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
2176                 break;
2177         case ETHTOOL_ID_OFF:
2178                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS))
2179                         i40e_led_set(hw, 0x0, false);
2180                 else
2181                         ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
2182                 break;
2183         case ETHTOOL_ID_INACTIVE:
2184                 if (!(pf->hw_features & I40E_HW_PHY_CONTROLS_LEDS)) {
2185                         i40e_led_set(hw, pf->led_status, false);
2186                 } else {
2187                         ret = i40e_led_set_phy(hw, false, pf->led_status,
2188                                                (pf->phy_led_val |
2189                                                I40E_PHY_LED_MODE_ORIG));
2190                         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE))
2191                                 i40e_aq_set_phy_debug(hw, 0, NULL);
2192                 }
2193                 break;
2194         default:
2195                 break;
2196         }
2197                 if (ret)
2198                         return -ENOENT;
2199                 else
2200                         return 0;
2201 }
2202
2203 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
2204  * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
2205  * 125us (8000 interrupts per second) == ITR(62)
2206  */
2207
2208 /**
2209  * __i40e_get_coalesce - get per-queue coalesce settings
2210  * @netdev: the netdev to check
2211  * @ec: ethtool coalesce data structure
2212  * @queue: which queue to pick
2213  *
2214  * Gets the per-queue settings for coalescence. Specifically Rx and Tx usecs
2215  * are per queue. If queue is <0 then we default to queue 0 as the
2216  * representative value.
2217  **/
2218 static int __i40e_get_coalesce(struct net_device *netdev,
2219                                struct ethtool_coalesce *ec,
2220                                int queue)
2221 {
2222         struct i40e_netdev_priv *np = netdev_priv(netdev);
2223         struct i40e_ring *rx_ring, *tx_ring;
2224         struct i40e_vsi *vsi = np->vsi;
2225
2226         ec->tx_max_coalesced_frames_irq = vsi->work_limit;
2227         ec->rx_max_coalesced_frames_irq = vsi->work_limit;
2228
2229         /* rx and tx usecs has per queue value. If user doesn't specify the
2230          * queue, return queue 0's value to represent.
2231          */
2232         if (queue < 0)
2233                 queue = 0;
2234         else if (queue >= vsi->num_queue_pairs)
2235                 return -EINVAL;
2236
2237         rx_ring = vsi->rx_rings[queue];
2238         tx_ring = vsi->tx_rings[queue];
2239
2240         if (ITR_IS_DYNAMIC(rx_ring->rx_itr_setting))
2241                 ec->use_adaptive_rx_coalesce = 1;
2242
2243         if (ITR_IS_DYNAMIC(tx_ring->tx_itr_setting))
2244                 ec->use_adaptive_tx_coalesce = 1;
2245
2246         ec->rx_coalesce_usecs = rx_ring->rx_itr_setting & ~I40E_ITR_DYNAMIC;
2247         ec->tx_coalesce_usecs = tx_ring->tx_itr_setting & ~I40E_ITR_DYNAMIC;
2248
2249         /* we use the _usecs_high to store/set the interrupt rate limit
2250          * that the hardware supports, that almost but not quite
2251          * fits the original intent of the ethtool variable,
2252          * the rx_coalesce_usecs_high limits total interrupts
2253          * per second from both tx/rx sources.
2254          */
2255         ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
2256         ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
2257
2258         return 0;
2259 }
2260
2261 /**
2262  * i40e_get_coalesce - get a netdev's coalesce settings
2263  * @netdev: the netdev to check
2264  * @ec: ethtool coalesce data structure
2265  *
2266  * Gets the coalesce settings for a particular netdev. Note that if user has
2267  * modified per-queue settings, this only guarantees to represent queue 0. See
2268  * __i40e_get_coalesce for more details.
2269  **/
2270 static int i40e_get_coalesce(struct net_device *netdev,
2271                              struct ethtool_coalesce *ec)
2272 {
2273         return __i40e_get_coalesce(netdev, ec, -1);
2274 }
2275
2276 /**
2277  * i40e_get_per_queue_coalesce - gets coalesce settings for particular queue
2278  * @netdev: netdev structure
2279  * @ec: ethtool's coalesce settings
2280  * @queue: the particular queue to read
2281  *
2282  * Will read a specific queue's coalesce settings
2283  **/
2284 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
2285                                        struct ethtool_coalesce *ec)
2286 {
2287         return __i40e_get_coalesce(netdev, ec, queue);
2288 }
2289
2290 /**
2291  * i40e_set_itr_per_queue - set ITR values for specific queue
2292  * @vsi: the VSI to set values for
2293  * @ec: coalesce settings from ethtool
2294  * @queue: the queue to modify
2295  *
2296  * Change the ITR settings for a specific queue.
2297  **/
2298 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
2299                                    struct ethtool_coalesce *ec,
2300                                    int queue)
2301 {
2302         struct i40e_pf *pf = vsi->back;
2303         struct i40e_hw *hw = &pf->hw;
2304         struct i40e_q_vector *q_vector;
2305         u16 vector, intrl;
2306
2307         intrl = i40e_intrl_usec_to_reg(vsi->int_rate_limit);
2308
2309         vsi->rx_rings[queue]->rx_itr_setting = ec->rx_coalesce_usecs;
2310         vsi->tx_rings[queue]->tx_itr_setting = ec->tx_coalesce_usecs;
2311
2312         if (ec->use_adaptive_rx_coalesce)
2313                 vsi->rx_rings[queue]->rx_itr_setting |= I40E_ITR_DYNAMIC;
2314         else
2315                 vsi->rx_rings[queue]->rx_itr_setting &= ~I40E_ITR_DYNAMIC;
2316
2317         if (ec->use_adaptive_tx_coalesce)
2318                 vsi->tx_rings[queue]->tx_itr_setting |= I40E_ITR_DYNAMIC;
2319         else
2320                 vsi->tx_rings[queue]->tx_itr_setting &= ~I40E_ITR_DYNAMIC;
2321
2322         q_vector = vsi->rx_rings[queue]->q_vector;
2323         q_vector->rx.itr = ITR_TO_REG(vsi->rx_rings[queue]->rx_itr_setting);
2324         vector = vsi->base_vector + q_vector->v_idx;
2325         wr32(hw, I40E_PFINT_ITRN(I40E_RX_ITR, vector - 1), q_vector->rx.itr);
2326
2327         q_vector = vsi->tx_rings[queue]->q_vector;
2328         q_vector->tx.itr = ITR_TO_REG(vsi->tx_rings[queue]->tx_itr_setting);
2329         vector = vsi->base_vector + q_vector->v_idx;
2330         wr32(hw, I40E_PFINT_ITRN(I40E_TX_ITR, vector - 1), q_vector->tx.itr);
2331
2332         wr32(hw, I40E_PFINT_RATEN(vector - 1), intrl);
2333         i40e_flush(hw);
2334 }
2335
2336 /**
2337  * __i40e_set_coalesce - set coalesce settings for particular queue
2338  * @netdev: the netdev to change
2339  * @ec: ethtool coalesce settings
2340  * @queue: the queue to change
2341  *
2342  * Sets the coalesce settings for a particular queue.
2343  **/
2344 static int __i40e_set_coalesce(struct net_device *netdev,
2345                                struct ethtool_coalesce *ec,
2346                                int queue)
2347 {
2348         struct i40e_netdev_priv *np = netdev_priv(netdev);
2349         u16 intrl_reg, cur_rx_itr, cur_tx_itr;
2350         struct i40e_vsi *vsi = np->vsi;
2351         struct i40e_pf *pf = vsi->back;
2352         int i;
2353
2354         if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
2355                 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
2356
2357         if (queue < 0) {
2358                 cur_rx_itr = vsi->rx_rings[0]->rx_itr_setting;
2359                 cur_tx_itr = vsi->tx_rings[0]->tx_itr_setting;
2360         } else if (queue < vsi->num_queue_pairs) {
2361                 cur_rx_itr = vsi->rx_rings[queue]->rx_itr_setting;
2362                 cur_tx_itr = vsi->tx_rings[queue]->tx_itr_setting;
2363         } else {
2364                 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
2365                            vsi->num_queue_pairs - 1);
2366                 return -EINVAL;
2367         }
2368
2369         cur_tx_itr &= ~I40E_ITR_DYNAMIC;
2370         cur_rx_itr &= ~I40E_ITR_DYNAMIC;
2371
2372         /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
2373         if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
2374                 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
2375                 return -EINVAL;
2376         }
2377
2378         if (ec->rx_coalesce_usecs_high > INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
2379                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-%lu\n",
2380                            INTRL_REG_TO_USEC(I40E_MAX_INTRL));
2381                 return -EINVAL;
2382         }
2383
2384         if (ec->rx_coalesce_usecs != cur_rx_itr &&
2385             ec->use_adaptive_rx_coalesce) {
2386                 netif_info(pf, drv, netdev, "RX interrupt moderation cannot be changed if adaptive-rx is enabled.\n");
2387                 return -EINVAL;
2388         }
2389
2390         if (ec->rx_coalesce_usecs > (I40E_MAX_ITR << 1)) {
2391                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
2392                 return -EINVAL;
2393         }
2394
2395         if (ec->tx_coalesce_usecs != cur_tx_itr &&
2396             ec->use_adaptive_tx_coalesce) {
2397                 netif_info(pf, drv, netdev, "TX interrupt moderation cannot be changed if adaptive-tx is enabled.\n");
2398                 return -EINVAL;
2399         }
2400
2401         if (ec->tx_coalesce_usecs > (I40E_MAX_ITR << 1)) {
2402                 netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
2403                 return -EINVAL;
2404         }
2405
2406         if (ec->use_adaptive_rx_coalesce && !cur_rx_itr)
2407                 ec->rx_coalesce_usecs = I40E_MIN_ITR << 1;
2408
2409         if (ec->use_adaptive_tx_coalesce && !cur_tx_itr)
2410                 ec->tx_coalesce_usecs = I40E_MIN_ITR << 1;
2411
2412         intrl_reg = i40e_intrl_usec_to_reg(ec->rx_coalesce_usecs_high);
2413         vsi->int_rate_limit = INTRL_REG_TO_USEC(intrl_reg);
2414         if (vsi->int_rate_limit != ec->rx_coalesce_usecs_high) {
2415                 netif_info(pf, drv, netdev, "Interrupt rate limit rounded down to %d\n",
2416                            vsi->int_rate_limit);
2417         }
2418
2419         /* rx and tx usecs has per queue value. If user doesn't specify the
2420          * queue, apply to all queues.
2421          */
2422         if (queue < 0) {
2423                 for (i = 0; i < vsi->num_queue_pairs; i++)
2424                         i40e_set_itr_per_queue(vsi, ec, i);
2425         } else {
2426                 i40e_set_itr_per_queue(vsi, ec, queue);
2427         }
2428
2429         return 0;
2430 }
2431
2432 /**
2433  * i40e_set_coalesce - set coalesce settings for every queue on the netdev
2434  * @netdev: the netdev to change
2435  * @ec: ethtool coalesce settings
2436  *
2437  * This will set each queue to the same coalesce settings.
2438  **/
2439 static int i40e_set_coalesce(struct net_device *netdev,
2440                              struct ethtool_coalesce *ec)
2441 {
2442         return __i40e_set_coalesce(netdev, ec, -1);
2443 }
2444
2445 /**
2446  * i40e_set_per_queue_coalesce - set specific queue's coalesce settings
2447  * @netdev: the netdev to change
2448  * @ec: ethtool's coalesce settings
2449  * @queue: the queue to change
2450  *
2451  * Sets the specified queue's coalesce settings.
2452  **/
2453 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
2454                                        struct ethtool_coalesce *ec)
2455 {
2456         return __i40e_set_coalesce(netdev, ec, queue);
2457 }
2458
2459 /**
2460  * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
2461  * @pf: pointer to the physical function struct
2462  * @cmd: ethtool rxnfc command
2463  *
2464  * Returns Success if the flow is supported, else Invalid Input.
2465  **/
2466 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
2467 {
2468         struct i40e_hw *hw = &pf->hw;
2469         u8 flow_pctype = 0;
2470         u64 i_set = 0;
2471
2472         cmd->data = 0;
2473
2474         switch (cmd->flow_type) {
2475         case TCP_V4_FLOW:
2476                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
2477                 break;
2478         case UDP_V4_FLOW:
2479                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
2480                 break;
2481         case TCP_V6_FLOW:
2482                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
2483                 break;
2484         case UDP_V6_FLOW:
2485                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
2486                 break;
2487         case SCTP_V4_FLOW:
2488         case AH_ESP_V4_FLOW:
2489         case AH_V4_FLOW:
2490         case ESP_V4_FLOW:
2491         case IPV4_FLOW:
2492         case SCTP_V6_FLOW:
2493         case AH_ESP_V6_FLOW:
2494         case AH_V6_FLOW:
2495         case ESP_V6_FLOW:
2496         case IPV6_FLOW:
2497                 /* Default is src/dest for IP, no matter the L4 hashing */
2498                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
2499                 break;
2500         default:
2501                 return -EINVAL;
2502         }
2503
2504         /* Read flow based hash input set register */
2505         if (flow_pctype) {
2506                 i_set = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
2507                                               flow_pctype)) |
2508                         ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
2509                                                flow_pctype)) << 32);
2510         }
2511
2512         /* Process bits of hash input set */
2513         if (i_set) {
2514                 if (i_set & I40E_L4_SRC_MASK)
2515                         cmd->data |= RXH_L4_B_0_1;
2516                 if (i_set & I40E_L4_DST_MASK)
2517                         cmd->data |= RXH_L4_B_2_3;
2518
2519                 if (cmd->flow_type == TCP_V4_FLOW ||
2520                     cmd->flow_type == UDP_V4_FLOW) {
2521                         if (i_set & I40E_L3_SRC_MASK)
2522                                 cmd->data |= RXH_IP_SRC;
2523                         if (i_set & I40E_L3_DST_MASK)
2524                                 cmd->data |= RXH_IP_DST;
2525                 } else if (cmd->flow_type == TCP_V6_FLOW ||
2526                           cmd->flow_type == UDP_V6_FLOW) {
2527                         if (i_set & I40E_L3_V6_SRC_MASK)
2528                                 cmd->data |= RXH_IP_SRC;
2529                         if (i_set & I40E_L3_V6_DST_MASK)
2530                                 cmd->data |= RXH_IP_DST;
2531                 }
2532         }
2533
2534         return 0;
2535 }
2536
2537 /**
2538  * i40e_check_mask - Check whether a mask field is set
2539  * @mask: the full mask value
2540  * @field; mask of the field to check
2541  *
2542  * If the given mask is fully set, return positive value. If the mask for the
2543  * field is fully unset, return zero. Otherwise return a negative error code.
2544  **/
2545 static int i40e_check_mask(u64 mask, u64 field)
2546 {
2547         u64 value = mask & field;
2548
2549         if (value == field)
2550                 return 1;
2551         else if (!value)
2552                 return 0;
2553         else
2554                 return -1;
2555 }
2556
2557 /**
2558  * i40e_parse_rx_flow_user_data - Deconstruct user-defined data
2559  * @fsp: pointer to rx flow specification
2560  * @data: pointer to userdef data structure for storage
2561  *
2562  * Read the user-defined data and deconstruct the value into a structure. No
2563  * other code should read the user-defined data, so as to ensure that every
2564  * place consistently reads the value correctly.
2565  *
2566  * The user-defined field is a 64bit Big Endian format value, which we
2567  * deconstruct by reading bits or bit fields from it. Single bit flags shall
2568  * be defined starting from the highest bits, while small bit field values
2569  * shall be defined starting from the lowest bits.
2570  *
2571  * Returns 0 if the data is valid, and non-zero if the userdef data is invalid
2572  * and the filter should be rejected. The data structure will always be
2573  * modified even if FLOW_EXT is not set.
2574  *
2575  **/
2576 static int i40e_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
2577                                         struct i40e_rx_flow_userdef *data)
2578 {
2579         u64 value, mask;
2580         int valid;
2581
2582         /* Zero memory first so it's always consistent. */
2583         memset(data, 0, sizeof(*data));
2584
2585         if (!(fsp->flow_type & FLOW_EXT))
2586                 return 0;
2587
2588         value = be64_to_cpu(*((__be64 *)fsp->h_ext.data));
2589         mask = be64_to_cpu(*((__be64 *)fsp->m_ext.data));
2590
2591 #define I40E_USERDEF_FLEX_WORD          GENMASK_ULL(15, 0)
2592 #define I40E_USERDEF_FLEX_OFFSET        GENMASK_ULL(31, 16)
2593 #define I40E_USERDEF_FLEX_FILTER        GENMASK_ULL(31, 0)
2594
2595         valid = i40e_check_mask(mask, I40E_USERDEF_FLEX_FILTER);
2596         if (valid < 0) {
2597                 return -EINVAL;
2598         } else if (valid) {
2599                 data->flex_word = value & I40E_USERDEF_FLEX_WORD;
2600                 data->flex_offset =
2601                         (value & I40E_USERDEF_FLEX_OFFSET) >> 16;
2602                 data->flex_filter = true;
2603         }
2604
2605         return 0;
2606 }
2607
2608 /**
2609  * i40e_fill_rx_flow_user_data - Fill in user-defined data field
2610  * @fsp: pointer to rx_flow specification
2611  *
2612  * Reads the userdef data structure and properly fills in the user defined
2613  * fields of the rx_flow_spec.
2614  **/
2615 static void i40e_fill_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
2616                                         struct i40e_rx_flow_userdef *data)
2617 {
2618         u64 value = 0, mask = 0;
2619
2620         if (data->flex_filter) {
2621                 value |= data->flex_word;
2622                 value |= (u64)data->flex_offset << 16;
2623                 mask |= I40E_USERDEF_FLEX_FILTER;
2624         }
2625
2626         if (value || mask)
2627                 fsp->flow_type |= FLOW_EXT;
2628
2629         *((__be64 *)fsp->h_ext.data) = cpu_to_be64(value);
2630         *((__be64 *)fsp->m_ext.data) = cpu_to_be64(mask);
2631 }
2632
2633 /**
2634  * i40e_get_ethtool_fdir_all - Populates the rule count of a command
2635  * @pf: Pointer to the physical function struct
2636  * @cmd: The command to get or set Rx flow classification rules
2637  * @rule_locs: Array of used rule locations
2638  *
2639  * This function populates both the total and actual rule count of
2640  * the ethtool flow classification command
2641  *
2642  * Returns 0 on success or -EMSGSIZE if entry not found
2643  **/
2644 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
2645                                      struct ethtool_rxnfc *cmd,
2646                                      u32 *rule_locs)
2647 {
2648         struct i40e_fdir_filter *rule;
2649         struct hlist_node *node2;
2650         int cnt = 0;
2651
2652         /* report total rule count */
2653         cmd->data = i40e_get_fd_cnt_all(pf);
2654
2655         hlist_for_each_entry_safe(rule, node2,
2656                                   &pf->fdir_filter_list, fdir_node) {
2657                 if (cnt == cmd->rule_cnt)
2658                         return -EMSGSIZE;
2659
2660                 rule_locs[cnt] = rule->fd_id;
2661                 cnt++;
2662         }
2663
2664         cmd->rule_cnt = cnt;
2665
2666         return 0;
2667 }
2668
2669 /**
2670  * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
2671  * @pf: Pointer to the physical function struct
2672  * @cmd: The command to get or set Rx flow classification rules
2673  *
2674  * This function looks up a filter based on the Rx flow classification
2675  * command and fills the flow spec info for it if found
2676  *
2677  * Returns 0 on success or -EINVAL if filter not found
2678  **/
2679 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
2680                                        struct ethtool_rxnfc *cmd)
2681 {
2682         struct ethtool_rx_flow_spec *fsp =
2683                         (struct ethtool_rx_flow_spec *)&cmd->fs;
2684         struct i40e_rx_flow_userdef userdef = {0};
2685         struct i40e_fdir_filter *rule = NULL;
2686         struct hlist_node *node2;
2687         u64 input_set;
2688         u16 index;
2689
2690         hlist_for_each_entry_safe(rule, node2,
2691                                   &pf->fdir_filter_list, fdir_node) {
2692                 if (fsp->location <= rule->fd_id)
2693                         break;
2694         }
2695
2696         if (!rule || fsp->location != rule->fd_id)
2697                 return -EINVAL;
2698
2699         fsp->flow_type = rule->flow_type;
2700         if (fsp->flow_type == IP_USER_FLOW) {
2701                 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
2702                 fsp->h_u.usr_ip4_spec.proto = 0;
2703                 fsp->m_u.usr_ip4_spec.proto = 0;
2704         }
2705
2706         /* Reverse the src and dest notion, since the HW views them from
2707          * Tx perspective where as the user expects it from Rx filter view.
2708          */
2709         fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
2710         fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
2711         fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip;
2712         fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip;
2713
2714         switch (rule->flow_type) {
2715         case SCTP_V4_FLOW:
2716                 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
2717                 break;
2718         case TCP_V4_FLOW:
2719                 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
2720                 break;
2721         case UDP_V4_FLOW:
2722                 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
2723                 break;
2724         case IP_USER_FLOW:
2725                 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
2726                 break;
2727         default:
2728                 /* If we have stored a filter with a flow type not listed here
2729                  * it is almost certainly a driver bug. WARN(), and then
2730                  * assign the input_set as if all fields are enabled to avoid
2731                  * reading unassigned memory.
2732                  */
2733                 WARN(1, "Missing input set index for flow_type %d\n",
2734                      rule->flow_type);
2735                 input_set = 0xFFFFFFFFFFFFFFFFULL;
2736                 goto no_input_set;
2737         }
2738
2739         input_set = i40e_read_fd_input_set(pf, index);
2740
2741 no_input_set:
2742         if (input_set & I40E_L3_SRC_MASK)
2743                 fsp->m_u.tcp_ip4_spec.ip4src = htonl(0xFFFF);
2744
2745         if (input_set & I40E_L3_DST_MASK)
2746                 fsp->m_u.tcp_ip4_spec.ip4dst = htonl(0xFFFF);
2747
2748         if (input_set & I40E_L4_SRC_MASK)
2749                 fsp->m_u.tcp_ip4_spec.psrc = htons(0xFFFFFFFF);
2750
2751         if (input_set & I40E_L4_DST_MASK)
2752                 fsp->m_u.tcp_ip4_spec.pdst = htons(0xFFFFFFFF);
2753
2754         if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
2755                 fsp->ring_cookie = RX_CLS_FLOW_DISC;
2756         else
2757                 fsp->ring_cookie = rule->q_index;
2758
2759         if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
2760                 struct i40e_vsi *vsi;
2761
2762                 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
2763                 if (vsi && vsi->type == I40E_VSI_SRIOV) {
2764                         /* VFs are zero-indexed by the driver, but ethtool
2765                          * expects them to be one-indexed, so add one here
2766                          */
2767                         u64 ring_vf = vsi->vf_id + 1;
2768
2769                         ring_vf <<= ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
2770                         fsp->ring_cookie |= ring_vf;
2771                 }
2772         }
2773
2774         if (rule->flex_filter) {
2775                 userdef.flex_filter = true;
2776                 userdef.flex_word = be16_to_cpu(rule->flex_word);
2777                 userdef.flex_offset = rule->flex_offset;
2778         }
2779
2780         i40e_fill_rx_flow_user_data(fsp, &userdef);
2781
2782         return 0;
2783 }
2784
2785 /**
2786  * i40e_get_rxnfc - command to get RX flow classification rules
2787  * @netdev: network interface device structure
2788  * @cmd: ethtool rxnfc command
2789  *
2790  * Returns Success if the command is supported.
2791  **/
2792 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
2793                           u32 *rule_locs)
2794 {
2795         struct i40e_netdev_priv *np = netdev_priv(netdev);
2796         struct i40e_vsi *vsi = np->vsi;
2797         struct i40e_pf *pf = vsi->back;
2798         int ret = -EOPNOTSUPP;
2799
2800         switch (cmd->cmd) {
2801         case ETHTOOL_GRXRINGS:
2802                 cmd->data = vsi->rss_size;
2803                 ret = 0;
2804                 break;
2805         case ETHTOOL_GRXFH:
2806                 ret = i40e_get_rss_hash_opts(pf, cmd);
2807                 break;
2808         case ETHTOOL_GRXCLSRLCNT:
2809                 cmd->rule_cnt = pf->fdir_pf_active_filters;
2810                 /* report total rule count */
2811                 cmd->data = i40e_get_fd_cnt_all(pf);
2812                 ret = 0;
2813                 break;
2814         case ETHTOOL_GRXCLSRULE:
2815                 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
2816                 break;
2817         case ETHTOOL_GRXCLSRLALL:
2818                 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
2819                 break;
2820         default:
2821                 break;
2822         }
2823
2824         return ret;
2825 }
2826
2827 /**
2828  * i40e_get_rss_hash_bits - Read RSS Hash bits from register
2829  * @nfc: pointer to user request
2830  * @i_setc bits currently set
2831  *
2832  * Returns value of bits to be set per user request
2833  **/
2834 static u64 i40e_get_rss_hash_bits(struct ethtool_rxnfc *nfc, u64 i_setc)
2835 {
2836         u64 i_set = i_setc;
2837         u64 src_l3 = 0, dst_l3 = 0;
2838
2839         if (nfc->data & RXH_L4_B_0_1)
2840                 i_set |= I40E_L4_SRC_MASK;
2841         else
2842                 i_set &= ~I40E_L4_SRC_MASK;
2843         if (nfc->data & RXH_L4_B_2_3)
2844                 i_set |= I40E_L4_DST_MASK;
2845         else
2846                 i_set &= ~I40E_L4_DST_MASK;
2847
2848         if (nfc->flow_type == TCP_V6_FLOW || nfc->flow_type == UDP_V6_FLOW) {
2849                 src_l3 = I40E_L3_V6_SRC_MASK;
2850                 dst_l3 = I40E_L3_V6_DST_MASK;
2851         } else if (nfc->flow_type == TCP_V4_FLOW ||
2852                   nfc->flow_type == UDP_V4_FLOW) {
2853                 src_l3 = I40E_L3_SRC_MASK;
2854                 dst_l3 = I40E_L3_DST_MASK;
2855         } else {
2856                 /* Any other flow type are not supported here */
2857                 return i_set;
2858         }
2859
2860         if (nfc->data & RXH_IP_SRC)
2861                 i_set |= src_l3;
2862         else
2863                 i_set &= ~src_l3;
2864         if (nfc->data & RXH_IP_DST)
2865                 i_set |= dst_l3;
2866         else
2867                 i_set &= ~dst_l3;
2868
2869         return i_set;
2870 }
2871
2872 /**
2873  * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
2874  * @pf: pointer to the physical function struct
2875  * @cmd: ethtool rxnfc command
2876  *
2877  * Returns Success if the flow input set is supported.
2878  **/
2879 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
2880 {
2881         struct i40e_hw *hw = &pf->hw;
2882         u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
2883                    ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
2884         u8 flow_pctype = 0;
2885         u64 i_set, i_setc;
2886
2887         if (pf->flags & I40E_FLAG_MFP_ENABLED) {
2888                 dev_err(&pf->pdev->dev,
2889                         "Change of RSS hash input set is not supported when MFP mode is enabled\n");
2890                 return -EOPNOTSUPP;
2891         }
2892
2893         /* RSS does not support anything other than hashing
2894          * to queues on src and dst IPs and ports
2895          */
2896         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
2897                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
2898                 return -EINVAL;
2899
2900         switch (nfc->flow_type) {
2901         case TCP_V4_FLOW:
2902                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
2903                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2904                         hena |=
2905                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
2906                 break;
2907         case TCP_V6_FLOW:
2908                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_TCP;
2909                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2910                         hena |=
2911                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
2912                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2913                         hena |=
2914                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
2915                 break;
2916         case UDP_V4_FLOW:
2917                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
2918                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2919                         hena |=
2920                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
2921                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
2922
2923                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
2924                 break;
2925         case UDP_V6_FLOW:
2926                 flow_pctype = I40E_FILTER_PCTYPE_NONF_IPV6_UDP;
2927                 if (pf->hw_features & I40E_HW_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2928                         hena |=
2929                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
2930                           BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
2931
2932                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
2933                 break;
2934         case AH_ESP_V4_FLOW:
2935         case AH_V4_FLOW:
2936         case ESP_V4_FLOW:
2937         case SCTP_V4_FLOW:
2938                 if ((nfc->data & RXH_L4_B_0_1) ||
2939                     (nfc->data & RXH_L4_B_2_3))
2940                         return -EINVAL;
2941                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
2942                 break;
2943         case AH_ESP_V6_FLOW:
2944         case AH_V6_FLOW:
2945         case ESP_V6_FLOW:
2946         case SCTP_V6_FLOW:
2947                 if ((nfc->data & RXH_L4_B_0_1) ||
2948                     (nfc->data & RXH_L4_B_2_3))
2949                         return -EINVAL;
2950                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
2951                 break;
2952         case IPV4_FLOW:
2953                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
2954                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
2955                 break;
2956         case IPV6_FLOW:
2957                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
2958                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
2959                 break;
2960         default:
2961                 return -EINVAL;
2962         }
2963
2964         if (flow_pctype) {
2965                 i_setc = (u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(0,
2966                                                flow_pctype)) |
2967                         ((u64)i40e_read_rx_ctl(hw, I40E_GLQF_HASH_INSET(1,
2968                                                flow_pctype)) << 32);
2969                 i_set = i40e_get_rss_hash_bits(nfc, i_setc);
2970                 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(0, flow_pctype),
2971                                   (u32)i_set);
2972                 i40e_write_rx_ctl(hw, I40E_GLQF_HASH_INSET(1, flow_pctype),
2973                                   (u32)(i_set >> 32));
2974                 hena |= BIT_ULL(flow_pctype);
2975         }
2976
2977         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
2978         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
2979         i40e_flush(hw);
2980
2981         return 0;
2982 }
2983
2984 /**
2985  * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
2986  * @vsi: Pointer to the targeted VSI
2987  * @input: The filter to update or NULL to indicate deletion
2988  * @sw_idx: Software index to the filter
2989  * @cmd: The command to get or set Rx flow classification rules
2990  *
2991  * This function updates (or deletes) a Flow Director entry from
2992  * the hlist of the corresponding PF
2993  *
2994  * Returns 0 on success
2995  **/
2996 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
2997                                           struct i40e_fdir_filter *input,
2998                                           u16 sw_idx,
2999                                           struct ethtool_rxnfc *cmd)
3000 {
3001         struct i40e_fdir_filter *rule, *parent;
3002         struct i40e_pf *pf = vsi->back;
3003         struct hlist_node *node2;
3004         int err = -EINVAL;
3005
3006         parent = NULL;
3007         rule = NULL;
3008
3009         hlist_for_each_entry_safe(rule, node2,
3010                                   &pf->fdir_filter_list, fdir_node) {
3011                 /* hash found, or no matching entry */
3012                 if (rule->fd_id >= sw_idx)
3013                         break;
3014                 parent = rule;
3015         }
3016
3017         /* if there is an old rule occupying our place remove it */
3018         if (rule && (rule->fd_id == sw_idx)) {
3019                 /* Remove this rule, since we're either deleting it, or
3020                  * replacing it.
3021                  */
3022                 err = i40e_add_del_fdir(vsi, rule, false);
3023                 hlist_del(&rule->fdir_node);
3024                 kfree(rule);
3025                 pf->fdir_pf_active_filters--;
3026         }
3027
3028         /* If we weren't given an input, this is a delete, so just return the
3029          * error code indicating if there was an entry at the requested slot
3030          */
3031         if (!input)
3032                 return err;
3033
3034         /* Otherwise, install the new rule as requested */
3035         INIT_HLIST_NODE(&input->fdir_node);
3036
3037         /* add filter to the list */
3038         if (parent)
3039                 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
3040         else
3041                 hlist_add_head(&input->fdir_node,
3042                                &pf->fdir_filter_list);
3043
3044         /* update counts */
3045         pf->fdir_pf_active_filters++;
3046
3047         return 0;
3048 }
3049
3050 /**
3051  * i40e_prune_flex_pit_list - Cleanup unused entries in FLX_PIT table
3052  * @pf: pointer to PF structure
3053  *
3054  * This function searches the list of filters and determines which FLX_PIT
3055  * entries are still required. It will prune any entries which are no longer
3056  * in use after the deletion.
3057  **/
3058 static void i40e_prune_flex_pit_list(struct i40e_pf *pf)
3059 {
3060         struct i40e_flex_pit *entry, *tmp;
3061         struct i40e_fdir_filter *rule;
3062
3063         /* First, we'll check the l3 table */
3064         list_for_each_entry_safe(entry, tmp, &pf->l3_flex_pit_list, list) {
3065                 bool found = false;
3066
3067                 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3068                         if (rule->flow_type != IP_USER_FLOW)
3069                                 continue;
3070                         if (rule->flex_filter &&
3071                             rule->flex_offset == entry->src_offset) {
3072                                 found = true;
3073                                 break;
3074                         }
3075                 }
3076
3077                 /* If we didn't find the filter, then we can prune this entry
3078                  * from the list.
3079                  */
3080                 if (!found) {
3081                         list_del(&entry->list);
3082                         kfree(entry);
3083                 }
3084         }
3085
3086         /* Followed by the L4 table */
3087         list_for_each_entry_safe(entry, tmp, &pf->l4_flex_pit_list, list) {
3088                 bool found = false;
3089
3090                 hlist_for_each_entry(rule, &pf->fdir_filter_list, fdir_node) {
3091                         /* Skip this filter if it's L3, since we already
3092                          * checked those in the above loop
3093                          */
3094                         if (rule->flow_type == IP_USER_FLOW)
3095                                 continue;
3096                         if (rule->flex_filter &&
3097                             rule->flex_offset == entry->src_offset) {
3098                                 found = true;
3099                                 break;
3100                         }
3101                 }
3102
3103                 /* If we didn't find the filter, then we can prune this entry
3104                  * from the list.
3105                  */
3106                 if (!found) {
3107                         list_del(&entry->list);
3108                         kfree(entry);
3109                 }
3110         }
3111 }
3112
3113 /**
3114  * i40e_del_fdir_entry - Deletes a Flow Director filter entry
3115  * @vsi: Pointer to the targeted VSI
3116  * @cmd: The command to get or set Rx flow classification rules
3117  *
3118  * The function removes a Flow Director filter entry from the
3119  * hlist of the corresponding PF
3120  *
3121  * Returns 0 on success
3122  */
3123 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
3124                                struct ethtool_rxnfc *cmd)
3125 {
3126         struct ethtool_rx_flow_spec *fsp =
3127                 (struct ethtool_rx_flow_spec *)&cmd->fs;
3128         struct i40e_pf *pf = vsi->back;
3129         int ret = 0;
3130
3131         if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
3132             test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
3133                 return -EBUSY;
3134
3135         if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
3136                 return -EBUSY;
3137
3138         ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
3139
3140         i40e_prune_flex_pit_list(pf);
3141
3142         i40e_fdir_check_and_reenable(pf);
3143         return ret;
3144 }
3145
3146 /**
3147  * i40e_unused_pit_index - Find an unused PIT index for given list
3148  * @pf: the PF data structure
3149  *
3150  * Find the first unused flexible PIT index entry. We search both the L3 and
3151  * L4 flexible PIT lists so that the returned index is unique and unused by
3152  * either currently programmed L3 or L4 filters. We use a bit field as storage
3153  * to track which indexes are already used.
3154  **/
3155 static u8 i40e_unused_pit_index(struct i40e_pf *pf)
3156 {
3157         unsigned long available_index = 0xFF;
3158         struct i40e_flex_pit *entry;
3159
3160         /* We need to make sure that the new index isn't in use by either L3
3161          * or L4 filters so that IP_USER_FLOW filters can program both L3 and
3162          * L4 to use the same index.
3163          */
3164
3165         list_for_each_entry(entry, &pf->l4_flex_pit_list, list)
3166                 clear_bit(entry->pit_index, &available_index);
3167
3168         list_for_each_entry(entry, &pf->l3_flex_pit_list, list)
3169                 clear_bit(entry->pit_index, &available_index);
3170
3171         return find_first_bit(&available_index, 8);
3172 }
3173
3174 /**
3175  * i40e_find_flex_offset - Find an existing flex src_offset
3176  * @flex_pit_list: L3 or L4 flex PIT list
3177  * @src_offset: new src_offset to find
3178  *
3179  * Searches the flex_pit_list for an existing offset. If no offset is
3180  * currently programmed, then this will return an ERR_PTR if there is no space
3181  * to add a new offset, otherwise it returns NULL.
3182  **/
3183 static
3184 struct i40e_flex_pit *i40e_find_flex_offset(struct list_head *flex_pit_list,
3185                                             u16 src_offset)
3186 {
3187         struct i40e_flex_pit *entry;
3188         int size = 0;
3189
3190         /* Search for the src_offset first. If we find a matching entry
3191          * already programmed, we can simply re-use it.
3192          */
3193         list_for_each_entry(entry, flex_pit_list, list) {
3194                 size++;
3195                 if (entry->src_offset == src_offset)
3196                         return entry;
3197         }
3198
3199         /* If we haven't found an entry yet, then the provided src offset has
3200          * not yet been programmed. We will program the src offset later on,
3201          * but we need to indicate whether there is enough space to do so
3202          * here. We'll make use of ERR_PTR for this purpose.
3203          */
3204         if (size >= I40E_FLEX_PIT_TABLE_SIZE)
3205                 return ERR_PTR(-ENOSPC);
3206
3207         return NULL;
3208 }
3209
3210 /**
3211  * i40e_add_flex_offset - Add src_offset to flex PIT table list
3212  * @flex_pit_list: L3 or L4 flex PIT list
3213  * @src_offset: new src_offset to add
3214  * @pit_index: the PIT index to program
3215  *
3216  * This function programs the new src_offset to the list. It is expected that
3217  * i40e_find_flex_offset has already been tried and returned NULL, indicating
3218  * that this offset is not programmed, and that the list has enough space to
3219  * store another offset.
3220  *
3221  * Returns 0 on success, and negative value on error.
3222  **/
3223 static int i40e_add_flex_offset(struct list_head *flex_pit_list,
3224                                 u16 src_offset,
3225                                 u8 pit_index)
3226 {
3227         struct i40e_flex_pit *new_pit, *entry;
3228
3229         new_pit = kzalloc(sizeof(*entry), GFP_KERNEL);
3230         if (!new_pit)
3231                 return -ENOMEM;
3232
3233         new_pit->src_offset = src_offset;
3234         new_pit->pit_index = pit_index;
3235
3236         /* We need to insert this item such that the list is sorted by
3237          * src_offset in ascending order.
3238          */
3239         list_for_each_entry(entry, flex_pit_list, list) {
3240                 if (new_pit->src_offset < entry->src_offset) {
3241                         list_add_tail(&new_pit->list, &entry->list);
3242                         return 0;
3243                 }
3244
3245                 /* If we found an entry with our offset already programmed we
3246                  * can simply return here, after freeing the memory. However,
3247                  * if the pit_index does not match we need to report an error.
3248                  */
3249                 if (new_pit->src_offset == entry->src_offset) {
3250                         int err = 0;
3251
3252                         /* If the PIT index is not the same we can't re-use
3253                          * the entry, so we must report an error.
3254                          */
3255                         if (new_pit->pit_index != entry->pit_index)
3256                                 err = -EINVAL;
3257
3258                         kfree(new_pit);
3259                         return err;
3260                 }
3261         }
3262
3263         /* If we reached here, then we haven't yet added the item. This means
3264          * that we should add the item at the end of the list.
3265          */
3266         list_add_tail(&new_pit->list, flex_pit_list);
3267         return 0;
3268 }
3269
3270 /**
3271  * __i40e_reprogram_flex_pit - Re-program specific FLX_PIT table
3272  * @pf: Pointer to the PF structure
3273  * @flex_pit_list: list of flexible src offsets in use
3274  * #flex_pit_start: index to first entry for this section of the table
3275  *
3276  * In order to handle flexible data, the hardware uses a table of values
3277  * called the FLX_PIT table. This table is used to indicate which sections of
3278  * the input correspond to what PIT index values. Unfortunately, hardware is
3279  * very restrictive about programming this table. Entries must be ordered by
3280  * src_offset in ascending order, without duplicates. Additionally, unused
3281  * entries must be set to the unused index value, and must have valid size and
3282  * length according to the src_offset ordering.
3283  *
3284  * This function will reprogram the FLX_PIT register from a book-keeping
3285  * structure that we guarantee is already ordered correctly, and has no more
3286  * than 3 entries.
3287  *
3288  * To make things easier, we only support flexible values of one word length,
3289  * rather than allowing variable length flexible values.
3290  **/
3291 static void __i40e_reprogram_flex_pit(struct i40e_pf *pf,
3292                                       struct list_head *flex_pit_list,
3293                                       int flex_pit_start)
3294 {
3295         struct i40e_flex_pit *entry = NULL;
3296         u16 last_offset = 0;
3297         int i = 0, j = 0;
3298
3299         /* First, loop over the list of flex PIT entries, and reprogram the
3300          * registers.
3301          */
3302         list_for_each_entry(entry, flex_pit_list, list) {
3303                 /* We have to be careful when programming values for the
3304                  * largest SRC_OFFSET value. It is possible that adding
3305                  * additional empty values at the end would overflow the space
3306                  * for the SRC_OFFSET in the FLX_PIT register. To avoid this,
3307                  * we check here and add the empty values prior to adding the
3308                  * largest value.
3309                  *
3310                  * To determine this, we will use a loop from i+1 to 3, which
3311                  * will determine whether the unused entries would have valid
3312                  * SRC_OFFSET. Note that there cannot be extra entries past
3313                  * this value, because the only valid values would have been
3314                  * larger than I40E_MAX_FLEX_SRC_OFFSET, and thus would not
3315                  * have been added to the list in the first place.
3316                  */
3317                 for (j = i + 1; j < 3; j++) {
3318                         u16 offset = entry->src_offset + j;
3319                         int index = flex_pit_start + i;
3320                         u32 value = I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3321                                                        1,
3322                                                        offset - 3);
3323
3324                         if (offset > I40E_MAX_FLEX_SRC_OFFSET) {
3325                                 i40e_write_rx_ctl(&pf->hw,
3326                                                   I40E_PRTQF_FLX_PIT(index),
3327                                                   value);
3328                                 i++;
3329                         }
3330                 }
3331
3332                 /* Now, we can program the actual value into the table */
3333                 i40e_write_rx_ctl(&pf->hw,
3334                                   I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3335                                   I40E_FLEX_PREP_VAL(entry->pit_index + 50,
3336                                                      1,
3337                                                      entry->src_offset));
3338                 i++;
3339         }
3340
3341         /* In order to program the last entries in the table, we need to
3342          * determine the valid offset. If the list is empty, we'll just start
3343          * with 0. Otherwise, we'll start with the last item offset and add 1.
3344          * This ensures that all entries have valid sizes. If we don't do this
3345          * correctly, the hardware will disable flexible field parsing.
3346          */
3347         if (!list_empty(flex_pit_list))
3348                 last_offset = list_prev_entry(entry, list)->src_offset + 1;
3349
3350         for (; i < 3; i++, last_offset++) {
3351                 i40e_write_rx_ctl(&pf->hw,
3352                                   I40E_PRTQF_FLX_PIT(flex_pit_start + i),
3353                                   I40E_FLEX_PREP_VAL(I40E_FLEX_DEST_UNUSED,
3354                                                      1,
3355                                                      last_offset));
3356         }
3357 }
3358
3359 /**
3360  * i40e_reprogram_flex_pit - Reprogram all FLX_PIT tables after input set change
3361  * @pf: pointer to the PF structure
3362  *
3363  * This function reprograms both the L3 and L4 FLX_PIT tables. See the
3364  * internal helper function for implementation details.
3365  **/
3366 static void i40e_reprogram_flex_pit(struct i40e_pf *pf)
3367 {
3368         __i40e_reprogram_flex_pit(pf, &pf->l3_flex_pit_list,
3369                                   I40E_FLEX_PIT_IDX_START_L3);
3370
3371         __i40e_reprogram_flex_pit(pf, &pf->l4_flex_pit_list,
3372                                   I40E_FLEX_PIT_IDX_START_L4);
3373
3374         /* We also need to program the L3 and L4 GLQF ORT register */
3375         i40e_write_rx_ctl(&pf->hw,
3376                           I40E_GLQF_ORT(I40E_L3_GLQF_ORT_IDX),
3377                           I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L3,
3378                                             3, 1));
3379
3380         i40e_write_rx_ctl(&pf->hw,
3381                           I40E_GLQF_ORT(I40E_L4_GLQF_ORT_IDX),
3382                           I40E_ORT_PREP_VAL(I40E_FLEX_PIT_IDX_START_L4,
3383                                             3, 1));
3384 }
3385
3386 /**
3387  * i40e_flow_str - Converts a flow_type into a human readable string
3388  * @flow_type: the flow type from a flow specification
3389  *
3390  * Currently only flow types we support are included here, and the string
3391  * value attempts to match what ethtool would use to configure this flow type.
3392  **/
3393 static const char *i40e_flow_str(struct ethtool_rx_flow_spec *fsp)
3394 {
3395         switch (fsp->flow_type & ~FLOW_EXT) {
3396         case TCP_V4_FLOW:
3397                 return "tcp4";
3398         case UDP_V4_FLOW:
3399                 return "udp4";
3400         case SCTP_V4_FLOW:
3401                 return "sctp4";
3402         case IP_USER_FLOW:
3403                 return "ip4";
3404         default:
3405                 return "unknown";
3406         }
3407 }
3408
3409 /**
3410  * i40e_pit_index_to_mask - Return the FLEX mask for a given PIT index
3411  * @pit_index: PIT index to convert
3412  *
3413  * Returns the mask for a given PIT index. Will return 0 if the pit_index is
3414  * of range.
3415  **/
3416 static u64 i40e_pit_index_to_mask(int pit_index)
3417 {
3418         switch (pit_index) {
3419         case 0:
3420                 return I40E_FLEX_50_MASK;
3421         case 1:
3422                 return I40E_FLEX_51_MASK;
3423         case 2:
3424                 return I40E_FLEX_52_MASK;
3425         case 3:
3426                 return I40E_FLEX_53_MASK;
3427         case 4:
3428                 return I40E_FLEX_54_MASK;
3429         case 5:
3430                 return I40E_FLEX_55_MASK;
3431         case 6:
3432                 return I40E_FLEX_56_MASK;
3433         case 7:
3434                 return I40E_FLEX_57_MASK;
3435         default:
3436                 return 0;
3437         }
3438 }
3439
3440 /**
3441  * i40e_print_input_set - Show changes between two input sets
3442  * @vsi: the vsi being configured
3443  * @old: the old input set
3444  * @new: the new input set
3445  *
3446  * Print the difference between old and new input sets by showing which series
3447  * of words are toggled on or off. Only displays the bits we actually support
3448  * changing.
3449  **/
3450 static void i40e_print_input_set(struct i40e_vsi *vsi, u64 old, u64 new)
3451 {
3452         struct i40e_pf *pf = vsi->back;
3453         bool old_value, new_value;
3454         int i;
3455
3456         old_value = !!(old & I40E_L3_SRC_MASK);
3457         new_value = !!(new & I40E_L3_SRC_MASK);
3458         if (old_value != new_value)
3459                 netif_info(pf, drv, vsi->netdev, "L3 source address: %s -> %s\n",
3460                            old_value ? "ON" : "OFF",
3461                            new_value ? "ON" : "OFF");
3462
3463         old_value = !!(old & I40E_L3_DST_MASK);
3464         new_value = !!(new & I40E_L3_DST_MASK);
3465         if (old_value != new_value)
3466                 netif_info(pf, drv, vsi->netdev, "L3 destination address: %s -> %s\n",
3467                            old_value ? "ON" : "OFF",
3468                            new_value ? "ON" : "OFF");
3469
3470         old_value = !!(old & I40E_L4_SRC_MASK);
3471         new_value = !!(new & I40E_L4_SRC_MASK);
3472         if (old_value != new_value)
3473                 netif_info(pf, drv, vsi->netdev, "L4 source port: %s -> %s\n",
3474                            old_value ? "ON" : "OFF",
3475                            new_value ? "ON" : "OFF");
3476
3477         old_value = !!(old & I40E_L4_DST_MASK);
3478         new_value = !!(new & I40E_L4_DST_MASK);
3479         if (old_value != new_value)
3480                 netif_info(pf, drv, vsi->netdev, "L4 destination port: %s -> %s\n",
3481                            old_value ? "ON" : "OFF",
3482                            new_value ? "ON" : "OFF");
3483
3484         old_value = !!(old & I40E_VERIFY_TAG_MASK);
3485         new_value = !!(new & I40E_VERIFY_TAG_MASK);
3486         if (old_value != new_value)
3487                 netif_info(pf, drv, vsi->netdev, "SCTP verification tag: %s -> %s\n",
3488                            old_value ? "ON" : "OFF",
3489                            new_value ? "ON" : "OFF");
3490
3491         /* Show change of flexible filter entries */
3492         for (i = 0; i < I40E_FLEX_INDEX_ENTRIES; i++) {
3493                 u64 flex_mask = i40e_pit_index_to_mask(i);
3494
3495                 old_value = !!(old & flex_mask);
3496                 new_value = !!(new & flex_mask);
3497                 if (old_value != new_value)
3498                         netif_info(pf, drv, vsi->netdev, "FLEX index %d: %s -> %s\n",
3499                                    i,
3500                                    old_value ? "ON" : "OFF",
3501                                    new_value ? "ON" : "OFF");
3502         }
3503
3504         netif_info(pf, drv, vsi->netdev, "  Current input set: %0llx\n",
3505                    old);
3506         netif_info(pf, drv, vsi->netdev, "Requested input set: %0llx\n",
3507                    new);
3508 }
3509
3510 /**
3511  * i40e_check_fdir_input_set - Check that a given rx_flow_spec mask is valid
3512  * @vsi: pointer to the targeted VSI
3513  * @fsp: pointer to Rx flow specification
3514  * @userdef: userdefined data from flow specification
3515  *
3516  * Ensures that a given ethtool_rx_flow_spec has a valid mask. Some support
3517  * for partial matches exists with a few limitations. First, hardware only
3518  * supports masking by word boundary (2 bytes) and not per individual bit.
3519  * Second, hardware is limited to using one mask for a flow type and cannot
3520  * use a separate mask for each filter.
3521  *
3522  * To support these limitations, if we already have a configured filter for
3523  * the specified type, this function enforces that new filters of the type
3524  * match the configured input set. Otherwise, if we do not have a filter of
3525  * the specified type, we allow the input set to be updated to match the
3526  * desired filter.
3527  *
3528  * To help ensure that administrators understand why filters weren't displayed
3529  * as supported, we print a diagnostic message displaying how the input set
3530  * would change and warning to delete the preexisting filters if required.
3531  *
3532  * Returns 0 on successful input set match, and a negative return code on
3533  * failure.
3534  **/
3535 static int i40e_check_fdir_input_set(struct i40e_vsi *vsi,
3536                                      struct ethtool_rx_flow_spec *fsp,
3537                                      struct i40e_rx_flow_userdef *userdef)
3538 {
3539         struct i40e_pf *pf = vsi->back;
3540         struct ethtool_tcpip4_spec *tcp_ip4_spec;
3541         struct ethtool_usrip4_spec *usr_ip4_spec;
3542         u64 current_mask, new_mask;
3543         bool new_flex_offset = false;
3544         bool flex_l3 = false;
3545         u16 *fdir_filter_count;
3546         u16 index, src_offset = 0;
3547         u8 pit_index = 0;
3548         int err;
3549
3550         switch (fsp->flow_type & ~FLOW_EXT) {
3551         case SCTP_V4_FLOW:
3552                 index = I40E_FILTER_PCTYPE_NONF_IPV4_SCTP;
3553                 fdir_filter_count = &pf->fd_sctp4_filter_cnt;
3554                 break;
3555         case TCP_V4_FLOW:
3556                 index = I40E_FILTER_PCTYPE_NONF_IPV4_TCP;
3557                 fdir_filter_count = &pf->fd_tcp4_filter_cnt;
3558                 break;
3559         case UDP_V4_FLOW:
3560                 index = I40E_FILTER_PCTYPE_NONF_IPV4_UDP;
3561                 fdir_filter_count = &pf->fd_udp4_filter_cnt;
3562                 break;
3563         case IP_USER_FLOW:
3564                 index = I40E_FILTER_PCTYPE_NONF_IPV4_OTHER;
3565                 fdir_filter_count = &pf->fd_ip4_filter_cnt;
3566                 flex_l3 = true;
3567                 break;
3568         default:
3569                 return -EOPNOTSUPP;
3570         }
3571
3572         /* Read the current input set from register memory. */
3573         current_mask = i40e_read_fd_input_set(pf, index);
3574         new_mask = current_mask;
3575
3576         /* Determine, if any, the required changes to the input set in order
3577          * to support the provided mask.
3578          *
3579          * Hardware only supports masking at word (2 byte) granularity and does
3580          * not support full bitwise masking. This implementation simplifies
3581          * even further and only supports fully enabled or fully disabled
3582          * masks for each field, even though we could split the ip4src and
3583          * ip4dst fields.
3584          */
3585         switch (fsp->flow_type & ~FLOW_EXT) {
3586         case SCTP_V4_FLOW:
3587                 new_mask &= ~I40E_VERIFY_TAG_MASK;
3588                 /* Fall through */
3589         case TCP_V4_FLOW:
3590         case UDP_V4_FLOW:
3591                 tcp_ip4_spec = &fsp->m_u.tcp_ip4_spec;
3592
3593                 /* IPv4 source address */
3594                 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF))
3595                         new_mask |= I40E_L3_SRC_MASK;
3596                 else if (!tcp_ip4_spec->ip4src)
3597                         new_mask &= ~I40E_L3_SRC_MASK;
3598                 else
3599                         return -EOPNOTSUPP;
3600
3601                 /* IPv4 destination address */
3602                 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
3603                         new_mask |= I40E_L3_DST_MASK;
3604                 else if (!tcp_ip4_spec->ip4dst)
3605                         new_mask &= ~I40E_L3_DST_MASK;
3606                 else
3607                         return -EOPNOTSUPP;
3608
3609                 /* L4 source port */
3610                 if (tcp_ip4_spec->psrc == htons(0xFFFF))
3611                         new_mask |= I40E_L4_SRC_MASK;
3612                 else if (!tcp_ip4_spec->psrc)
3613                         new_mask &= ~I40E_L4_SRC_MASK;
3614                 else
3615                         return -EOPNOTSUPP;
3616
3617                 /* L4 destination port */
3618                 if (tcp_ip4_spec->pdst == htons(0xFFFF))
3619                         new_mask |= I40E_L4_DST_MASK;
3620                 else if (!tcp_ip4_spec->pdst)
3621                         new_mask &= ~I40E_L4_DST_MASK;
3622                 else
3623                         return -EOPNOTSUPP;
3624
3625                 /* Filtering on Type of Service is not supported. */
3626                 if (tcp_ip4_spec->tos)
3627                         return -EOPNOTSUPP;
3628
3629                 break;
3630         case IP_USER_FLOW:
3631                 usr_ip4_spec = &fsp->m_u.usr_ip4_spec;
3632
3633                 /* IPv4 source address */
3634                 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF))
3635                         new_mask |= I40E_L3_SRC_MASK;
3636                 else if (!usr_ip4_spec->ip4src)
3637                         new_mask &= ~I40E_L3_SRC_MASK;
3638                 else
3639                         return -EOPNOTSUPP;
3640
3641                 /* IPv4 destination address */
3642                 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
3643                         new_mask |= I40E_L3_DST_MASK;
3644                 else if (!usr_ip4_spec->ip4dst)
3645                         new_mask &= ~I40E_L3_DST_MASK;
3646                 else
3647                         return -EOPNOTSUPP;
3648
3649                 /* First 4 bytes of L4 header */
3650                 if (usr_ip4_spec->l4_4_bytes == htonl(0xFFFFFFFF))
3651                         new_mask |= I40E_L4_SRC_MASK | I40E_L4_DST_MASK;
3652                 else if (!usr_ip4_spec->l4_4_bytes)
3653                         new_mask &= ~(I40E_L4_SRC_MASK | I40E_L4_DST_MASK);
3654                 else
3655                         return -EOPNOTSUPP;
3656
3657                 /* Filtering on Type of Service is not supported. */
3658                 if (usr_ip4_spec->tos)
3659                         return -EOPNOTSUPP;
3660
3661                 /* Filtering on IP version is not supported */
3662                 if (usr_ip4_spec->ip_ver)
3663                         return -EINVAL;
3664
3665                 /* Filtering on L4 protocol is not supported */
3666                 if (usr_ip4_spec->proto)
3667                         return -EINVAL;
3668
3669                 break;
3670         default:
3671                 return -EOPNOTSUPP;
3672         }
3673
3674         /* First, clear all flexible filter entries */
3675         new_mask &= ~I40E_FLEX_INPUT_MASK;
3676
3677         /* If we have a flexible filter, try to add this offset to the correct
3678          * flexible filter PIT list. Once finished, we can update the mask.
3679          * If the src_offset changed, we will get a new mask value which will
3680          * trigger an input set change.
3681          */
3682         if (userdef->flex_filter) {
3683                 struct i40e_flex_pit *l3_flex_pit = NULL, *flex_pit = NULL;
3684
3685                 /* Flexible offset must be even, since the flexible payload
3686                  * must be aligned on 2-byte boundary.
3687                  */
3688                 if (userdef->flex_offset & 0x1) {
3689                         dev_warn(&pf->pdev->dev,
3690                                  "Flexible data offset must be 2-byte aligned\n");
3691                         return -EINVAL;
3692                 }
3693
3694                 src_offset = userdef->flex_offset >> 1;
3695
3696                 /* FLX_PIT source offset value is only so large */
3697                 if (src_offset > I40E_MAX_FLEX_SRC_OFFSET) {
3698                         dev_warn(&pf->pdev->dev,
3699                                  "Flexible data must reside within first 64 bytes of the packet payload\n");
3700                         return -EINVAL;
3701                 }
3702
3703                 /* See if this offset has already been programmed. If we get
3704                  * an ERR_PTR, then the filter is not safe to add. Otherwise,
3705                  * if we get a NULL pointer, this means we will need to add
3706                  * the offset.
3707                  */
3708                 flex_pit = i40e_find_flex_offset(&pf->l4_flex_pit_list,
3709                                                  src_offset);
3710                 if (IS_ERR(flex_pit))
3711                         return PTR_ERR(flex_pit);
3712
3713                 /* IP_USER_FLOW filters match both L4 (ICMP) and L3 (unknown)
3714                  * packet types, and thus we need to program both L3 and L4
3715                  * flexible values. These must have identical flexible index,
3716                  * as otherwise we can't correctly program the input set. So
3717                  * we'll find both an L3 and L4 index and make sure they are
3718                  * the same.
3719                  */
3720                 if (flex_l3) {
3721                         l3_flex_pit =
3722                                 i40e_find_flex_offset(&pf->l3_flex_pit_list,
3723                                                       src_offset);
3724                         if (IS_ERR(l3_flex_pit))
3725                                 return PTR_ERR(l3_flex_pit);
3726
3727                         if (flex_pit) {
3728                                 /* If we already had a matching L4 entry, we
3729                                  * need to make sure that the L3 entry we
3730                                  * obtained uses the same index.
3731                                  */
3732                                 if (l3_flex_pit) {
3733                                         if (l3_flex_pit->pit_index !=
3734                                             flex_pit->pit_index) {
3735                                                 return -EINVAL;
3736                                         }
3737                                 } else {
3738                                         new_flex_offset = true;
3739                                 }
3740                         } else {
3741                                 flex_pit = l3_flex_pit;
3742                         }
3743                 }
3744
3745                 /* If we didn't find an existing flex offset, we need to
3746                  * program a new one. However, we don't immediately program it
3747                  * here because we will wait to program until after we check
3748                  * that it is safe to change the input set.
3749                  */
3750                 if (!flex_pit) {
3751                         new_flex_offset = true;
3752                         pit_index = i40e_unused_pit_index(pf);
3753                 } else {
3754                         pit_index = flex_pit->pit_index;
3755                 }
3756
3757                 /* Update the mask with the new offset */
3758                 new_mask |= i40e_pit_index_to_mask(pit_index);
3759         }
3760
3761         /* If the mask and flexible filter offsets for this filter match the
3762          * currently programmed values we don't need any input set change, so
3763          * this filter is safe to install.
3764          */
3765         if (new_mask == current_mask && !new_flex_offset)
3766                 return 0;
3767
3768         netif_info(pf, drv, vsi->netdev, "Input set change requested for %s flows:\n",
3769                    i40e_flow_str(fsp));
3770         i40e_print_input_set(vsi, current_mask, new_mask);
3771         if (new_flex_offset) {
3772                 netif_info(pf, drv, vsi->netdev, "FLEX index %d: Offset -> %d",
3773                            pit_index, src_offset);
3774         }
3775
3776         /* Hardware input sets are global across multiple ports, so even the
3777          * main port cannot change them when in MFP mode as this would impact
3778          * any filters on the other ports.
3779          */
3780         if (pf->flags & I40E_FLAG_MFP_ENABLED) {
3781                 netif_err(pf, drv, vsi->netdev, "Cannot change Flow Director input sets while MFP is enabled\n");
3782                 return -EOPNOTSUPP;
3783         }
3784
3785         /* This filter requires us to update the input set. However, hardware
3786          * only supports one input set per flow type, and does not support
3787          * separate masks for each filter. This means that we can only support
3788          * a single mask for all filters of a specific type.
3789          *
3790          * If we have preexisting filters, they obviously depend on the
3791          * current programmed input set. Display a diagnostic message in this
3792          * case explaining why the filter could not be accepted.
3793          */
3794         if (*fdir_filter_count) {
3795                 netif_err(pf, drv, vsi->netdev, "Cannot change input set for %s flows until %d preexisting filters are removed\n",
3796                           i40e_flow_str(fsp),
3797                           *fdir_filter_count);
3798                 return -EOPNOTSUPP;
3799         }
3800
3801         i40e_write_fd_input_set(pf, index, new_mask);
3802
3803         /* Add the new offset and update table, if necessary */
3804         if (new_flex_offset) {
3805                 err = i40e_add_flex_offset(&pf->l4_flex_pit_list, src_offset,
3806                                            pit_index);
3807                 if (err)
3808                         return err;
3809
3810                 if (flex_l3) {
3811                         err = i40e_add_flex_offset(&pf->l3_flex_pit_list,
3812                                                    src_offset,
3813                                                    pit_index);
3814                         if (err)
3815                                 return err;
3816                 }
3817
3818                 i40e_reprogram_flex_pit(pf);
3819         }
3820
3821         return 0;
3822 }
3823
3824 /**
3825  * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
3826  * @vsi: pointer to the targeted VSI
3827  * @cmd: command to get or set RX flow classification rules
3828  *
3829  * Add Flow Director filters for a specific flow spec based on their
3830  * protocol.  Returns 0 if the filters were successfully added.
3831  **/
3832 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
3833                                  struct ethtool_rxnfc *cmd)
3834 {
3835         struct i40e_rx_flow_userdef userdef;
3836         struct ethtool_rx_flow_spec *fsp;
3837         struct i40e_fdir_filter *input;
3838         u16 dest_vsi = 0, q_index = 0;
3839         struct i40e_pf *pf;
3840         int ret = -EINVAL;
3841         u8 dest_ctl;
3842
3843         if (!vsi)
3844                 return -EINVAL;
3845         pf = vsi->back;
3846
3847         if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
3848                 return -EOPNOTSUPP;
3849
3850         if (pf->flags & I40E_FLAG_FD_SB_AUTO_DISABLED)
3851                 return -ENOSPC;
3852
3853         if (test_bit(__I40E_RESET_RECOVERY_PENDING, pf->state) ||
3854             test_bit(__I40E_RESET_INTR_RECEIVED, pf->state))
3855                 return -EBUSY;
3856
3857         if (test_bit(__I40E_FD_FLUSH_REQUESTED, pf->state))
3858                 return -EBUSY;
3859
3860         fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
3861
3862         /* Parse the user-defined field */
3863         if (i40e_parse_rx_flow_user_data(fsp, &userdef))
3864                 return -EINVAL;
3865
3866         /* Extended MAC field is not supported */
3867         if (fsp->flow_type & FLOW_MAC_EXT)
3868                 return -EINVAL;
3869
3870         ret = i40e_check_fdir_input_set(vsi, fsp, &userdef);
3871         if (ret)
3872                 return ret;
3873
3874         if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
3875                               pf->hw.func_caps.fd_filters_guaranteed)) {
3876                 return -EINVAL;
3877         }
3878
3879         /* ring_cookie is either the drop index, or is a mask of the queue
3880          * index and VF id we wish to target.
3881          */
3882         if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
3883                 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
3884         } else {
3885                 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
3886                 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
3887
3888                 if (!vf) {
3889                         if (ring >= vsi->num_queue_pairs)
3890                                 return -EINVAL;
3891                         dest_vsi = vsi->id;
3892                 } else {
3893                         /* VFs are zero-indexed, so we subtract one here */
3894                         vf--;
3895
3896                         if (vf >= pf->num_alloc_vfs)
3897                                 return -EINVAL;
3898                         if (ring >= pf->vf[vf].num_queue_pairs)
3899                                 return -EINVAL;
3900                         dest_vsi = pf->vf[vf].lan_vsi_id;
3901                 }
3902                 dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
3903                 q_index = ring;
3904         }
3905
3906         input = kzalloc(sizeof(*input), GFP_KERNEL);
3907
3908         if (!input)
3909                 return -ENOMEM;
3910
3911         input->fd_id = fsp->location;
3912         input->q_index = q_index;
3913         input->dest_vsi = dest_vsi;
3914         input->dest_ctl = dest_ctl;
3915         input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
3916         input->cnt_index  = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
3917         input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
3918         input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
3919         input->flow_type = fsp->flow_type & ~FLOW_EXT;
3920         input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
3921
3922         /* Reverse the src and dest notion, since the HW expects them to be from
3923          * Tx perspective where as the input from user is from Rx filter view.
3924          */
3925         input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
3926         input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
3927         input->dst_ip = fsp->h_u.tcp_ip4_spec.ip4src;
3928         input->src_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
3929
3930         if (userdef.flex_filter) {
3931                 input->flex_filter = true;
3932                 input->flex_word = cpu_to_be16(userdef.flex_word);
3933                 input->flex_offset = userdef.flex_offset;
3934         }
3935
3936         ret = i40e_add_del_fdir(vsi, input, true);
3937         if (ret)
3938                 goto free_input;
3939
3940         /* Add the input filter to the fdir_input_list, possibly replacing
3941          * a previous filter. Do not free the input structure after adding it
3942          * to the list as this would cause a use-after-free bug.
3943          */
3944         i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
3945
3946         return 0;
3947
3948 free_input:
3949         kfree(input);
3950         return ret;
3951 }
3952
3953 /**
3954  * i40e_set_rxnfc - command to set RX flow classification rules
3955  * @netdev: network interface device structure
3956  * @cmd: ethtool rxnfc command
3957  *
3958  * Returns Success if the command is supported.
3959  **/
3960 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
3961 {
3962         struct i40e_netdev_priv *np = netdev_priv(netdev);
3963         struct i40e_vsi *vsi = np->vsi;
3964         struct i40e_pf *pf = vsi->back;
3965         int ret = -EOPNOTSUPP;
3966
3967         switch (cmd->cmd) {
3968         case ETHTOOL_SRXFH:
3969                 ret = i40e_set_rss_hash_opt(pf, cmd);
3970                 break;
3971         case ETHTOOL_SRXCLSRLINS:
3972                 ret = i40e_add_fdir_ethtool(vsi, cmd);
3973                 break;
3974         case ETHTOOL_SRXCLSRLDEL:
3975                 ret = i40e_del_fdir_entry(vsi, cmd);
3976                 break;
3977         default:
3978                 break;
3979         }
3980
3981         return ret;
3982 }
3983
3984 /**
3985  * i40e_max_channels - get Max number of combined channels supported
3986  * @vsi: vsi pointer
3987  **/
3988 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
3989 {
3990         /* TODO: This code assumes DCB and FD is disabled for now. */
3991         return vsi->alloc_queue_pairs;
3992 }
3993
3994 /**
3995  * i40e_get_channels - Get the current channels enabled and max supported etc.
3996  * @netdev: network interface device structure
3997  * @ch: ethtool channels structure
3998  *
3999  * We don't support separate tx and rx queues as channels. The other count
4000  * represents how many queues are being used for control. max_combined counts
4001  * how many queue pairs we can support. They may not be mapped 1 to 1 with
4002  * q_vectors since we support a lot more queue pairs than q_vectors.
4003  **/
4004 static void i40e_get_channels(struct net_device *dev,
4005                                struct ethtool_channels *ch)
4006 {
4007         struct i40e_netdev_priv *np = netdev_priv(dev);
4008         struct i40e_vsi *vsi = np->vsi;
4009         struct i40e_pf *pf = vsi->back;
4010
4011         /* report maximum channels */
4012         ch->max_combined = i40e_max_channels(vsi);
4013
4014         /* report info for other vector */
4015         ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
4016         ch->max_other = ch->other_count;
4017
4018         /* Note: This code assumes DCB is disabled for now. */
4019         ch->combined_count = vsi->num_queue_pairs;
4020 }
4021
4022 /**
4023  * i40e_set_channels - Set the new channels count.
4024  * @netdev: network interface device structure
4025  * @ch: ethtool channels structure
4026  *
4027  * The new channels count may not be the same as requested by the user
4028  * since it gets rounded down to a power of 2 value.
4029  **/
4030 static int i40e_set_channels(struct net_device *dev,
4031                               struct ethtool_channels *ch)
4032 {
4033         const u8 drop = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
4034         struct i40e_netdev_priv *np = netdev_priv(dev);
4035         unsigned int count = ch->combined_count;
4036         struct i40e_vsi *vsi = np->vsi;
4037         struct i40e_pf *pf = vsi->back;
4038         struct i40e_fdir_filter *rule;
4039         struct hlist_node *node2;
4040         int new_count;
4041         int err = 0;
4042
4043         /* We do not support setting channels for any other VSI at present */
4044         if (vsi->type != I40E_VSI_MAIN)
4045                 return -EINVAL;
4046
4047         /* We do not support setting channels via ethtool when TCs are
4048          * configured through mqprio
4049          */
4050         if (pf->flags & I40E_FLAG_TC_MQPRIO)
4051                 return -EINVAL;
4052
4053         /* verify they are not requesting separate vectors */
4054         if (!count || ch->rx_count || ch->tx_count)
4055                 return -EINVAL;
4056
4057         /* verify other_count has not changed */
4058         if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
4059                 return -EINVAL;
4060
4061         /* verify the number of channels does not exceed hardware limits */
4062         if (count > i40e_max_channels(vsi))
4063                 return -EINVAL;
4064
4065         /* verify that the number of channels does not invalidate any current
4066          * flow director rules
4067          */
4068         hlist_for_each_entry_safe(rule, node2,
4069                                   &pf->fdir_filter_list, fdir_node) {
4070                 if (rule->dest_ctl != drop && count <= rule->q_index) {
4071                         dev_warn(&pf->pdev->dev,
4072                                  "Existing user defined filter %d assigns flow to queue %d\n",
4073                                  rule->fd_id, rule->q_index);
4074                         err = -EINVAL;
4075                 }
4076         }
4077
4078         if (err) {
4079                 dev_err(&pf->pdev->dev,
4080                         "Existing filter rules must be deleted to reduce combined channel count to %d\n",
4081                         count);
4082                 return err;
4083         }
4084
4085         /* update feature limits from largest to smallest supported values */
4086         /* TODO: Flow director limit, DCB etc */
4087
4088         /* use rss_reconfig to rebuild with new queue count and update traffic
4089          * class queue mapping
4090          */
4091         new_count = i40e_reconfig_rss_queues(pf, count);
4092         if (new_count > 0)
4093                 return 0;
4094         else
4095                 return -EINVAL;
4096 }
4097
4098 /**
4099  * i40e_get_rxfh_key_size - get the RSS hash key size
4100  * @netdev: network interface device structure
4101  *
4102  * Returns the table size.
4103  **/
4104 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
4105 {
4106         return I40E_HKEY_ARRAY_SIZE;
4107 }
4108
4109 /**
4110  * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
4111  * @netdev: network interface device structure
4112  *
4113  * Returns the table size.
4114  **/
4115 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
4116 {
4117         return I40E_HLUT_ARRAY_SIZE;
4118 }
4119
4120 /**
4121  * i40e_get_rxfh - get the rx flow hash indirection table
4122  * @netdev: network interface device structure
4123  * @indir: indirection table
4124  * @key: hash key
4125  * @hfunc: hash function
4126  *
4127  * Reads the indirection table directly from the hardware. Returns 0 on
4128  * success.
4129  **/
4130 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
4131                          u8 *hfunc)
4132 {
4133         struct i40e_netdev_priv *np = netdev_priv(netdev);
4134         struct i40e_vsi *vsi = np->vsi;
4135         u8 *lut, *seed = NULL;
4136         int ret;
4137         u16 i;
4138
4139         if (hfunc)
4140                 *hfunc = ETH_RSS_HASH_TOP;
4141
4142         if (!indir)
4143                 return 0;
4144
4145         seed = key;
4146         lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
4147         if (!lut)
4148                 return -ENOMEM;
4149         ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
4150         if (ret)
4151                 goto out;
4152         for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
4153                 indir[i] = (u32)(lut[i]);
4154
4155 out:
4156         kfree(lut);
4157
4158         return ret;
4159 }
4160
4161 /**
4162  * i40e_set_rxfh - set the rx flow hash indirection table
4163  * @netdev: network interface device structure
4164  * @indir: indirection table
4165  * @key: hash key
4166  *
4167  * Returns -EINVAL if the table specifies an invalid queue id, otherwise
4168  * returns 0 after programming the table.
4169  **/
4170 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
4171                          const u8 *key, const u8 hfunc)
4172 {
4173         struct i40e_netdev_priv *np = netdev_priv(netdev);
4174         struct i40e_vsi *vsi = np->vsi;
4175         struct i40e_pf *pf = vsi->back;
4176         u8 *seed = NULL;
4177         u16 i;
4178
4179         if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
4180                 return -EOPNOTSUPP;
4181
4182         if (key) {
4183                 if (!vsi->rss_hkey_user) {
4184                         vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
4185                                                      GFP_KERNEL);
4186                         if (!vsi->rss_hkey_user)
4187                                 return -ENOMEM;
4188                 }
4189                 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE);
4190                 seed = vsi->rss_hkey_user;
4191         }
4192         if (!vsi->rss_lut_user) {
4193                 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
4194                 if (!vsi->rss_lut_user)
4195                         return -ENOMEM;
4196         }
4197
4198         /* Each 32 bits pointed by 'indir' is stored with a lut entry */
4199         if (indir)
4200                 for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
4201                         vsi->rss_lut_user[i] = (u8)(indir[i]);
4202         else
4203                 i40e_fill_rss_lut(pf, vsi->rss_lut_user, I40E_HLUT_ARRAY_SIZE,
4204                                   vsi->rss_size);
4205
4206         return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
4207                                I40E_HLUT_ARRAY_SIZE);
4208 }
4209
4210 /**
4211  * i40e_get_priv_flags - report device private flags
4212  * @dev: network interface device structure
4213  *
4214  * The get string set count and the string set should be matched for each
4215  * flag returned.  Add new strings for each flag to the i40e_gstrings_priv_flags
4216  * array.
4217  *
4218  * Returns a u32 bitmap of flags.
4219  **/
4220 static u32 i40e_get_priv_flags(struct net_device *dev)
4221 {
4222         struct i40e_netdev_priv *np = netdev_priv(dev);
4223         struct i40e_vsi *vsi = np->vsi;
4224         struct i40e_pf *pf = vsi->back;
4225         u32 i, j, ret_flags = 0;
4226
4227         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
4228                 const struct i40e_priv_flags *priv_flags;
4229
4230                 priv_flags = &i40e_gstrings_priv_flags[i];
4231
4232                 if (priv_flags->flag & pf->flags)
4233                         ret_flags |= BIT(i);
4234         }
4235
4236         if (pf->hw.pf_id != 0)
4237                 return ret_flags;
4238
4239         for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
4240                 const struct i40e_priv_flags *priv_flags;
4241
4242                 priv_flags = &i40e_gl_gstrings_priv_flags[j];
4243
4244                 if (priv_flags->flag & pf->flags)
4245                         ret_flags |= BIT(i + j);
4246         }
4247
4248         return ret_flags;
4249 }
4250
4251 /**
4252  * i40e_set_priv_flags - set private flags
4253  * @dev: network interface device structure
4254  * @flags: bit flags to be set
4255  **/
4256 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
4257 {
4258         struct i40e_netdev_priv *np = netdev_priv(dev);
4259         struct i40e_vsi *vsi = np->vsi;
4260         struct i40e_pf *pf = vsi->back;
4261         u32 orig_flags, new_flags, changed_flags;
4262         u32 i, j;
4263
4264         orig_flags = READ_ONCE(pf->flags);
4265         new_flags = orig_flags;
4266
4267         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
4268                 const struct i40e_priv_flags *priv_flags;
4269
4270                 priv_flags = &i40e_gstrings_priv_flags[i];
4271
4272                 if (flags & BIT(i))
4273                         new_flags |= priv_flags->flag;
4274                 else
4275                         new_flags &= ~(priv_flags->flag);
4276
4277                 /* If this is a read-only flag, it can't be changed */
4278                 if (priv_flags->read_only &&
4279                     ((orig_flags ^ new_flags) & ~BIT(i)))
4280                         return -EOPNOTSUPP;
4281         }
4282
4283         if (pf->hw.pf_id != 0)
4284                 goto flags_complete;
4285
4286         for (j = 0; j < I40E_GL_PRIV_FLAGS_STR_LEN; j++) {
4287                 const struct i40e_priv_flags *priv_flags;
4288
4289                 priv_flags = &i40e_gl_gstrings_priv_flags[j];
4290
4291                 if (flags & BIT(i + j))
4292                         new_flags |= priv_flags->flag;
4293                 else
4294                         new_flags &= ~(priv_flags->flag);
4295
4296                 /* If this is a read-only flag, it can't be changed */
4297                 if (priv_flags->read_only &&
4298                     ((orig_flags ^ new_flags) & ~BIT(i)))
4299                         return -EOPNOTSUPP;
4300         }
4301
4302 flags_complete:
4303         /* Before we finalize any flag changes, we need to perform some
4304          * checks to ensure that the changes are supported and safe.
4305          */
4306
4307         /* ATR eviction is not supported on all devices */
4308         if ((new_flags & I40E_FLAG_HW_ATR_EVICT_ENABLED) &&
4309             !(pf->hw_features & I40E_HW_ATR_EVICT_CAPABLE))
4310                 return -EOPNOTSUPP;
4311
4312         /* Compare and exchange the new flags into place. If we failed, that
4313          * is if cmpxchg returns anything but the old value, this means that
4314          * something else has modified the flags variable since we copied it
4315          * originally. We'll just punt with an error and log something in the
4316          * message buffer.
4317          */
4318         if (cmpxchg(&pf->flags, orig_flags, new_flags) != orig_flags) {
4319                 dev_warn(&pf->pdev->dev,
4320                          "Unable to update pf->flags as it was modified by another thread...\n");
4321                 return -EAGAIN;
4322         }
4323
4324         changed_flags = orig_flags ^ new_flags;
4325
4326         /* Process any additional changes needed as a result of flag changes.
4327          * The changed_flags value reflects the list of bits that were
4328          * changed in the code above.
4329          */
4330
4331         /* Flush current ATR settings if ATR was disabled */
4332         if ((changed_flags & I40E_FLAG_FD_ATR_ENABLED) &&
4333             !(pf->flags & I40E_FLAG_FD_ATR_ENABLED)) {
4334                 pf->flags |= I40E_FLAG_FD_ATR_AUTO_DISABLED;
4335                 set_bit(__I40E_FD_FLUSH_REQUESTED, pf->state);
4336         }
4337
4338         if (changed_flags & I40E_FLAG_TRUE_PROMISC_SUPPORT) {
4339                 u16 sw_flags = 0, valid_flags = 0;
4340                 int ret;
4341
4342                 if (!(pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT))
4343                         sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
4344                 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
4345                 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags,
4346                                                 0, NULL);
4347                 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {
4348                         dev_info(&pf->pdev->dev,
4349                                  "couldn't set switch config bits, err %s aq_err %s\n",
4350                                  i40e_stat_str(&pf->hw, ret),
4351                                  i40e_aq_str(&pf->hw,
4352                                              pf->hw.aq.asq_last_status));
4353                         /* not a fatal problem, just keep going */
4354                 }
4355         }
4356
4357         /* Issue reset to cause things to take effect, as additional bits
4358          * are added we will need to create a mask of bits requiring reset
4359          */
4360         if (changed_flags & (I40E_FLAG_VEB_STATS_ENABLED |
4361                              I40E_FLAG_LEGACY_RX |
4362                              I40E_FLAG_SOURCE_PRUNING_DISABLED))
4363                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED), true);
4364
4365         return 0;
4366 }
4367
4368 /**
4369  * i40e_get_module_info - get (Q)SFP+ module type info
4370  * @netdev: network interface device structure
4371  * @modinfo: module EEPROM size and layout information structure
4372  **/
4373 static int i40e_get_module_info(struct net_device *netdev,
4374                                 struct ethtool_modinfo *modinfo)
4375 {
4376         struct i40e_netdev_priv *np = netdev_priv(netdev);
4377         struct i40e_vsi *vsi = np->vsi;
4378         struct i40e_pf *pf = vsi->back;
4379         struct i40e_hw *hw = &pf->hw;
4380         u32 sff8472_comp = 0;
4381         u32 sff8472_swap = 0;
4382         u32 sff8636_rev = 0;
4383         i40e_status status;
4384         u32 type = 0;
4385
4386         /* Check if firmware supports reading module EEPROM. */
4387         if (!(hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE)) {
4388                 netdev_err(vsi->netdev, "Module EEPROM memory read not supported. Please update the NVM image.\n");
4389                 return -EINVAL;
4390         }
4391
4392         status = i40e_update_link_info(hw);
4393         if (status)
4394                 return -EIO;
4395
4396         if (hw->phy.link_info.phy_type == I40E_PHY_TYPE_EMPTY) {
4397                 netdev_err(vsi->netdev, "Cannot read module EEPROM memory. No module connected.\n");
4398                 return -EINVAL;
4399         }
4400
4401         type = hw->phy.link_info.module_type[0];
4402
4403         switch (type) {
4404         case I40E_MODULE_TYPE_SFP:
4405                 status = i40e_aq_get_phy_register(hw,
4406                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
4407                                 I40E_I2C_EEPROM_DEV_ADDR,
4408                                 I40E_MODULE_SFF_8472_COMP,
4409                                 &sff8472_comp, NULL);
4410                 if (status)
4411                         return -EIO;
4412
4413                 status = i40e_aq_get_phy_register(hw,
4414                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
4415                                 I40E_I2C_EEPROM_DEV_ADDR,
4416                                 I40E_MODULE_SFF_8472_SWAP,
4417                                 &sff8472_swap, NULL);
4418                 if (status)
4419                         return -EIO;
4420
4421                 /* Check if the module requires address swap to access
4422                  * the other EEPROM memory page.
4423                  */
4424                 if (sff8472_swap & I40E_MODULE_SFF_ADDR_MODE) {
4425                         netdev_warn(vsi->netdev, "Module address swap to access page 0xA2 is not supported.\n");
4426                         modinfo->type = ETH_MODULE_SFF_8079;
4427                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
4428                 } else if (sff8472_comp == 0x00) {
4429                         /* Module is not SFF-8472 compliant */
4430                         modinfo->type = ETH_MODULE_SFF_8079;
4431                         modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN;
4432                 } else {
4433                         modinfo->type = ETH_MODULE_SFF_8472;
4434                         modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN;
4435                 }
4436                 break;
4437         case I40E_MODULE_TYPE_QSFP_PLUS:
4438                 /* Read from memory page 0. */
4439                 status = i40e_aq_get_phy_register(hw,
4440                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
4441                                 0,
4442                                 I40E_MODULE_REVISION_ADDR,
4443                                 &sff8636_rev, NULL);
4444                 if (status)
4445                         return -EIO;
4446                 /* Determine revision compliance byte */
4447                 if (sff8636_rev > 0x02) {
4448                         /* Module is SFF-8636 compliant */
4449                         modinfo->type = ETH_MODULE_SFF_8636;
4450                         modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
4451                 } else {
4452                         modinfo->type = ETH_MODULE_SFF_8436;
4453                         modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
4454                 }
4455                 break;
4456         case I40E_MODULE_TYPE_QSFP28:
4457                 modinfo->type = ETH_MODULE_SFF_8636;
4458                 modinfo->eeprom_len = I40E_MODULE_QSFP_MAX_LEN;
4459                 break;
4460         default:
4461                 netdev_err(vsi->netdev, "Module type unrecognized\n");
4462                 return -EINVAL;
4463         }
4464         return 0;
4465 }
4466
4467 /**
4468  * i40e_get_module_eeprom - fills buffer with (Q)SFP+ module memory contents
4469  * @netdev: network interface device structure
4470  * @ee: EEPROM dump request structure
4471  * @data: buffer to be filled with EEPROM contents
4472  **/
4473 static int i40e_get_module_eeprom(struct net_device *netdev,
4474                                   struct ethtool_eeprom *ee,
4475                                   u8 *data)
4476 {
4477         struct i40e_netdev_priv *np = netdev_priv(netdev);
4478         struct i40e_vsi *vsi = np->vsi;
4479         struct i40e_pf *pf = vsi->back;
4480         struct i40e_hw *hw = &pf->hw;
4481         bool is_sfp = false;
4482         i40e_status status;
4483         u32 value = 0;
4484         int i;
4485
4486         if (!ee || !ee->len || !data)
4487                 return -EINVAL;
4488
4489         if (hw->phy.link_info.module_type[0] == I40E_MODULE_TYPE_SFP)
4490                 is_sfp = true;
4491
4492         for (i = 0; i < ee->len; i++) {
4493                 u32 offset = i + ee->offset;
4494                 u32 addr = is_sfp ? I40E_I2C_EEPROM_DEV_ADDR : 0;
4495
4496                 /* Check if we need to access the other memory page */
4497                 if (is_sfp) {
4498                         if (offset >= ETH_MODULE_SFF_8079_LEN) {
4499                                 offset -= ETH_MODULE_SFF_8079_LEN;
4500                                 addr = I40E_I2C_EEPROM_DEV_ADDR2;
4501                         }
4502                 } else {
4503                         while (offset >= ETH_MODULE_SFF_8436_LEN) {
4504                                 /* Compute memory page number and offset. */
4505                                 offset -= ETH_MODULE_SFF_8436_LEN / 2;
4506                                 addr++;
4507                         }
4508                 }
4509
4510                 status = i40e_aq_get_phy_register(hw,
4511                                 I40E_AQ_PHY_REG_ACCESS_EXTERNAL_MODULE,
4512                                 addr, offset, &value, NULL);
4513                 if (status)
4514                         return -EIO;
4515                 data[i] = value;
4516         }
4517         return 0;
4518 }
4519
4520 static const struct ethtool_ops i40e_ethtool_ops = {
4521         .get_drvinfo            = i40e_get_drvinfo,
4522         .get_regs_len           = i40e_get_regs_len,
4523         .get_regs               = i40e_get_regs,
4524         .nway_reset             = i40e_nway_reset,
4525         .get_link               = ethtool_op_get_link,
4526         .get_wol                = i40e_get_wol,
4527         .set_wol                = i40e_set_wol,
4528         .set_eeprom             = i40e_set_eeprom,
4529         .get_eeprom_len         = i40e_get_eeprom_len,
4530         .get_eeprom             = i40e_get_eeprom,
4531         .get_ringparam          = i40e_get_ringparam,
4532         .set_ringparam          = i40e_set_ringparam,
4533         .get_pauseparam         = i40e_get_pauseparam,
4534         .set_pauseparam         = i40e_set_pauseparam,
4535         .get_msglevel           = i40e_get_msglevel,
4536         .set_msglevel           = i40e_set_msglevel,
4537         .get_rxnfc              = i40e_get_rxnfc,
4538         .set_rxnfc              = i40e_set_rxnfc,
4539         .self_test              = i40e_diag_test,
4540         .get_strings            = i40e_get_strings,
4541         .set_phys_id            = i40e_set_phys_id,
4542         .get_sset_count         = i40e_get_sset_count,
4543         .get_ethtool_stats      = i40e_get_ethtool_stats,
4544         .get_coalesce           = i40e_get_coalesce,
4545         .set_coalesce           = i40e_set_coalesce,
4546         .get_rxfh_key_size      = i40e_get_rxfh_key_size,
4547         .get_rxfh_indir_size    = i40e_get_rxfh_indir_size,
4548         .get_rxfh               = i40e_get_rxfh,
4549         .set_rxfh               = i40e_set_rxfh,
4550         .get_channels           = i40e_get_channels,
4551         .set_channels           = i40e_set_channels,
4552         .get_module_info        = i40e_get_module_info,
4553         .get_module_eeprom      = i40e_get_module_eeprom,
4554         .get_ts_info            = i40e_get_ts_info,
4555         .get_priv_flags         = i40e_get_priv_flags,
4556         .set_priv_flags         = i40e_set_priv_flags,
4557         .get_per_queue_coalesce = i40e_get_per_queue_coalesce,
4558         .set_per_queue_coalesce = i40e_set_per_queue_coalesce,
4559         .get_link_ksettings     = i40e_get_link_ksettings,
4560         .set_link_ksettings     = i40e_set_link_ksettings,
4561 };
4562
4563 void i40e_set_ethtool_ops(struct net_device *netdev)
4564 {
4565         netdev->ethtool_ops = &i40e_ethtool_ops;
4566 }