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 <e1000-devel@lists.sourceforge.net>
  23  * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  24  *
  25  ******************************************************************************/
  26
  27 /* ethtool support for i40e */
  28
  29 #include "i40e.h"
  30 #include "i40e_diag.h"
  31
  32 struct i40e_stats {
  33         char stat_string[ETH_GSTRING_LEN];
  34         int sizeof_stat;
  35         int stat_offset;
  36 };
  37
  38 #define I40E_STAT(_type, _name, _stat) { \
  39         .stat_string = _name, \
  40         .sizeof_stat = FIELD_SIZEOF(_type, _stat), \
  41         .stat_offset = offsetof(_type, _stat) \
  42 }
  43
  44 #define I40E_NETDEV_STAT(_net_stat) \
  45                 I40E_STAT(struct rtnl_link_stats64, #_net_stat, _net_stat)
  46 #define I40E_PF_STAT(_name, _stat) \
  47                 I40E_STAT(struct i40e_pf, _name, _stat)
  48 #define I40E_VSI_STAT(_name, _stat) \
  49                 I40E_STAT(struct i40e_vsi, _name, _stat)
  50 #define I40E_VEB_STAT(_name, _stat) \
  51                 I40E_STAT(struct i40e_veb, _name, _stat)
  52
  53 static const struct i40e_stats i40e_gstrings_net_stats[] = {
  54         I40E_NETDEV_STAT(rx_packets),
  55         I40E_NETDEV_STAT(tx_packets),
  56         I40E_NETDEV_STAT(rx_bytes),
  57         I40E_NETDEV_STAT(tx_bytes),
  58         I40E_NETDEV_STAT(rx_errors),
  59         I40E_NETDEV_STAT(tx_errors),
  60         I40E_NETDEV_STAT(rx_dropped),
  61         I40E_NETDEV_STAT(tx_dropped),
  62         I40E_NETDEV_STAT(collisions),
  63         I40E_NETDEV_STAT(rx_length_errors),
  64         I40E_NETDEV_STAT(rx_crc_errors),
  65 };
  66
  67 static const struct i40e_stats i40e_gstrings_veb_stats[] = {
  68         I40E_VEB_STAT("rx_bytes", stats.rx_bytes),
  69         I40E_VEB_STAT("tx_bytes", stats.tx_bytes),
  70         I40E_VEB_STAT("rx_unicast", stats.rx_unicast),
  71         I40E_VEB_STAT("tx_unicast", stats.tx_unicast),
  72         I40E_VEB_STAT("rx_multicast", stats.rx_multicast),
  73         I40E_VEB_STAT("tx_multicast", stats.tx_multicast),
  74         I40E_VEB_STAT("rx_broadcast", stats.rx_broadcast),
  75         I40E_VEB_STAT("tx_broadcast", stats.tx_broadcast),
  76         I40E_VEB_STAT("rx_discards", stats.rx_discards),
  77         I40E_VEB_STAT("tx_discards", stats.tx_discards),
  78         I40E_VEB_STAT("tx_errors", stats.tx_errors),
  79         I40E_VEB_STAT("rx_unknown_protocol", stats.rx_unknown_protocol),
  80 };
  81
  82 static const struct i40e_stats i40e_gstrings_misc_stats[] = {
  83         I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast),
  84         I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast),
  85         I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast),
  86         I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast),
  87         I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast),
  88         I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast),
  89         I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol),
  90         I40E_VSI_STAT("tx_linearize", tx_linearize),
  91         I40E_VSI_STAT("tx_force_wb", tx_force_wb),
  92         I40E_VSI_STAT("tx_lost_interrupt", tx_lost_interrupt),
  93         I40E_VSI_STAT("rx_alloc_fail", rx_buf_failed),
  94         I40E_VSI_STAT("rx_pg_alloc_fail", rx_page_failed),
  95 };
  96
  97 /* These PF_STATs might look like duplicates of some NETDEV_STATs,
  98  * but they are separate.  This device supports Virtualization, and
  99  * as such might have several netdevs supporting VMDq and FCoE going
 100  * through a single port.  The NETDEV_STATs are for individual netdevs
 101  * seen at the top of the stack, and the PF_STATs are for the physical
 102  * function at the bottom of the stack hosting those netdevs.
 103  *
 104  * The PF_STATs are appended to the netdev stats only when ethtool -S
 105  * is queried on the base PF netdev, not on the VMDq or FCoE netdev.
 106  */
 107 static struct i40e_stats i40e_gstrings_stats[] = {
 108         I40E_PF_STAT("rx_bytes", stats.eth.rx_bytes),
 109         I40E_PF_STAT("tx_bytes", stats.eth.tx_bytes),
 110         I40E_PF_STAT("rx_unicast", stats.eth.rx_unicast),
 111         I40E_PF_STAT("tx_unicast", stats.eth.tx_unicast),
 112         I40E_PF_STAT("rx_multicast", stats.eth.rx_multicast),
 113         I40E_PF_STAT("tx_multicast", stats.eth.tx_multicast),
 114         I40E_PF_STAT("rx_broadcast", stats.eth.rx_broadcast),
 115         I40E_PF_STAT("tx_broadcast", stats.eth.tx_broadcast),
 116         I40E_PF_STAT("tx_errors", stats.eth.tx_errors),
 117         I40E_PF_STAT("rx_dropped", stats.eth.rx_discards),
 118         I40E_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down),
 119         I40E_PF_STAT("rx_crc_errors", stats.crc_errors),
 120         I40E_PF_STAT("illegal_bytes", stats.illegal_bytes),
 121         I40E_PF_STAT("mac_local_faults", stats.mac_local_faults),
 122         I40E_PF_STAT("mac_remote_faults", stats.mac_remote_faults),
 123         I40E_PF_STAT("tx_timeout", tx_timeout_count),
 124         I40E_PF_STAT("rx_csum_bad", hw_csum_rx_error),
 125         I40E_PF_STAT("rx_length_errors", stats.rx_length_errors),
 126         I40E_PF_STAT("link_xon_rx", stats.link_xon_rx),
 127         I40E_PF_STAT("link_xoff_rx", stats.link_xoff_rx),
 128         I40E_PF_STAT("link_xon_tx", stats.link_xon_tx),
 129         I40E_PF_STAT("link_xoff_tx", stats.link_xoff_tx),
 130         I40E_PF_STAT("rx_size_64", stats.rx_size_64),
 131         I40E_PF_STAT("rx_size_127", stats.rx_size_127),
 132         I40E_PF_STAT("rx_size_255", stats.rx_size_255),
 133         I40E_PF_STAT("rx_size_511", stats.rx_size_511),
 134         I40E_PF_STAT("rx_size_1023", stats.rx_size_1023),
 135         I40E_PF_STAT("rx_size_1522", stats.rx_size_1522),
 136         I40E_PF_STAT("rx_size_big", stats.rx_size_big),
 137         I40E_PF_STAT("tx_size_64", stats.tx_size_64),
 138         I40E_PF_STAT("tx_size_127", stats.tx_size_127),
 139         I40E_PF_STAT("tx_size_255", stats.tx_size_255),
 140         I40E_PF_STAT("tx_size_511", stats.tx_size_511),
 141         I40E_PF_STAT("tx_size_1023", stats.tx_size_1023),
 142         I40E_PF_STAT("tx_size_1522", stats.tx_size_1522),
 143         I40E_PF_STAT("tx_size_big", stats.tx_size_big),
 144         I40E_PF_STAT("rx_undersize", stats.rx_undersize),
 145         I40E_PF_STAT("rx_fragments", stats.rx_fragments),
 146         I40E_PF_STAT("rx_oversize", stats.rx_oversize),
 147         I40E_PF_STAT("rx_jabber", stats.rx_jabber),
 148         I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests),
 149         I40E_PF_STAT("arq_overflows", arq_overflows),
 150         I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
 151         I40E_PF_STAT("fdir_flush_cnt", fd_flush_cnt),
 152         I40E_PF_STAT("fdir_atr_match", stats.fd_atr_match),
 153         I40E_PF_STAT("fdir_atr_tunnel_match", stats.fd_atr_tunnel_match),
 154         I40E_PF_STAT("fdir_atr_status", stats.fd_atr_status),
 155         I40E_PF_STAT("fdir_sb_match", stats.fd_sb_match),
 156         I40E_PF_STAT("fdir_sb_status", stats.fd_sb_status),
 157
 158         /* LPI stats */
 159         I40E_PF_STAT("tx_lpi_status", stats.tx_lpi_status),
 160         I40E_PF_STAT("rx_lpi_status", stats.rx_lpi_status),
 161         I40E_PF_STAT("tx_lpi_count", stats.tx_lpi_count),
 162         I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count),
 163 };
 164
 165 #ifdef I40E_FCOE
 166 static const struct i40e_stats i40e_gstrings_fcoe_stats[] = {
 167         I40E_VSI_STAT("fcoe_bad_fccrc", fcoe_stats.fcoe_bad_fccrc),
 168         I40E_VSI_STAT("rx_fcoe_dropped", fcoe_stats.rx_fcoe_dropped),
 169         I40E_VSI_STAT("rx_fcoe_packets", fcoe_stats.rx_fcoe_packets),
 170         I40E_VSI_STAT("rx_fcoe_dwords", fcoe_stats.rx_fcoe_dwords),
 171         I40E_VSI_STAT("fcoe_ddp_count", fcoe_stats.fcoe_ddp_count),
 172         I40E_VSI_STAT("fcoe_last_error", fcoe_stats.fcoe_last_error),
 173         I40E_VSI_STAT("tx_fcoe_packets", fcoe_stats.tx_fcoe_packets),
 174         I40E_VSI_STAT("tx_fcoe_dwords", fcoe_stats.tx_fcoe_dwords),
 175 };
 176
 177 #endif /* I40E_FCOE */
 178 #define I40E_QUEUE_STATS_LEN(n) \
 179         (((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \
 180             * 2 /* Tx and Rx together */                                     \
 181             * (sizeof(struct i40e_queue_stats) / sizeof(u64)))
 182 #define I40E_GLOBAL_STATS_LEN   ARRAY_SIZE(i40e_gstrings_stats)
 183 #define I40E_NETDEV_STATS_LEN   ARRAY_SIZE(i40e_gstrings_net_stats)
 184 #define I40E_MISC_STATS_LEN     ARRAY_SIZE(i40e_gstrings_misc_stats)
 185 #ifdef I40E_FCOE
 186 #define I40E_FCOE_STATS_LEN     ARRAY_SIZE(i40e_gstrings_fcoe_stats)
 187 #define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
 188                                  I40E_FCOE_STATS_LEN + \
 189                                  I40E_MISC_STATS_LEN + \
 190                                  I40E_QUEUE_STATS_LEN((n)))
 191 #else
 192 #define I40E_VSI_STATS_LEN(n)   (I40E_NETDEV_STATS_LEN + \
 193                                  I40E_MISC_STATS_LEN + \
 194                                  I40E_QUEUE_STATS_LEN((n)))
 195 #endif /* I40E_FCOE */
 196 #define I40E_PFC_STATS_LEN ( \
 197                 (FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \
 198                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \
 199                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \
 200                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \
 201                  FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \
 202                  / sizeof(u64))
 203 #define I40E_VEB_TC_STATS_LEN ( \
 204                 (FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_packets) + \
 205                  FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_rx_bytes) + \
 206                  FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_packets) + \
 207                  FIELD_SIZEOF(struct i40e_veb, tc_stats.tc_tx_bytes)) \
 208                  / sizeof(u64))
 209 #define I40E_VEB_STATS_LEN      ARRAY_SIZE(i40e_gstrings_veb_stats)
 210 #define I40E_VEB_STATS_TOTAL    (I40E_VEB_STATS_LEN + I40E_VEB_TC_STATS_LEN)
 211 #define I40E_PF_STATS_LEN(n)    (I40E_GLOBAL_STATS_LEN + \
 212                                  I40E_PFC_STATS_LEN + \
 213                                  I40E_VSI_STATS_LEN((n)))
 214
 215 enum i40e_ethtool_test_id {
 216         I40E_ETH_TEST_REG = 0,
 217         I40E_ETH_TEST_EEPROM,
 218         I40E_ETH_TEST_INTR,
 219         I40E_ETH_TEST_LOOPBACK,
 220         I40E_ETH_TEST_LINK,
 221 };
 222
 223 static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = {
 224         "Register test  (offline)",
 225         "Eeprom test    (offline)",
 226         "Interrupt test (offline)",
 227         "Loopback test  (offline)",
 228         "Link test   (on/offline)"
 229 };
 230
 231 #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN)
 232
 233 static const char i40e_priv_flags_strings_gl[][ETH_GSTRING_LEN] = {
 234         "MFP",
 235         "LinkPolling",
 236         "flow-director-atr",
 237         "veb-stats",
 238         "hw-atr-eviction",
 239         "vf-true-promisc-support",
 240 };
 241
 242 #define I40E_PRIV_FLAGS_GL_STR_LEN ARRAY_SIZE(i40e_priv_flags_strings_gl)
 243
 244 static const char i40e_priv_flags_strings[][ETH_GSTRING_LEN] = {
 245         "NPAR",
 246         "LinkPolling",
 247         "flow-director-atr",
 248         "veb-stats",
 249         "hw-atr-eviction",
 250 };
 251
 252 #define I40E_PRIV_FLAGS_STR_LEN ARRAY_SIZE(i40e_priv_flags_strings)
 253
 254 /**
 255  * i40e_partition_setting_complaint - generic complaint for MFP restriction
 256  * @pf: the PF struct
 257  **/
 258 static void i40e_partition_setting_complaint(struct i40e_pf *pf)
 259 {
 260         dev_info(&pf->pdev->dev,
 261                  "The link settings are allowed to be changed only from the first partition of a given port. Please switch to the first partition in order to change the setting.\n");
 262 }
 263
 264 /**
 265  * i40e_phy_type_to_ethtool - convert the phy_types to ethtool link modes
 266  * @phy_types: PHY types to convert
 267  * @supported: pointer to the ethtool supported variable to fill in
 268  * @advertising: pointer to the ethtool advertising variable to fill in
 269  *
 270  **/
 271 static void i40e_phy_type_to_ethtool(struct i40e_pf *pf, u32 *supported,
 272                                      u32 *advertising)
 273 {
 274         enum i40e_aq_capabilities_phy_type phy_types = pf->hw.phy.phy_types;
 275         struct i40e_link_status *hw_link_info = &pf->hw.phy.link_info;
 276         *supported = 0x0;
 277         *advertising = 0x0;
 278
 279         if (phy_types & I40E_CAP_PHY_TYPE_SGMII) {
 280                 *supported |= SUPPORTED_Autoneg |
 281                               SUPPORTED_1000baseT_Full;
 282                 *advertising |= ADVERTISED_Autoneg;
 283                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 284                         *advertising |= ADVERTISED_1000baseT_Full;
 285                 if (pf->flags & I40E_FLAG_100M_SGMII_CAPABLE) {
 286                         *supported |= SUPPORTED_100baseT_Full;
 287                         *advertising |= ADVERTISED_100baseT_Full;
 288                 }
 289         }
 290         if (phy_types & I40E_CAP_PHY_TYPE_XAUI ||
 291             phy_types & I40E_CAP_PHY_TYPE_XFI ||
 292             phy_types & I40E_CAP_PHY_TYPE_SFI ||
 293             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SFPP_CU ||
 294             phy_types & I40E_CAP_PHY_TYPE_10GBASE_AOC)
 295                 *supported |= SUPPORTED_10000baseT_Full;
 296         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1_CU ||
 297             phy_types & I40E_CAP_PHY_TYPE_10GBASE_CR1 ||
 298             phy_types & I40E_CAP_PHY_TYPE_10GBASE_T ||
 299             phy_types & I40E_CAP_PHY_TYPE_10GBASE_SR ||
 300             phy_types & I40E_CAP_PHY_TYPE_10GBASE_LR) {
 301                 *supported |= SUPPORTED_Autoneg |
 302                               SUPPORTED_10000baseT_Full;
 303                 *advertising |= ADVERTISED_Autoneg;
 304                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 305                         *advertising |= ADVERTISED_10000baseT_Full;
 306         }
 307         if (phy_types & I40E_CAP_PHY_TYPE_XLAUI ||
 308             phy_types & I40E_CAP_PHY_TYPE_XLPPI ||
 309             phy_types & I40E_CAP_PHY_TYPE_40GBASE_AOC)
 310                 *supported |= SUPPORTED_40000baseCR4_Full;
 311         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4_CU ||
 312             phy_types & I40E_CAP_PHY_TYPE_40GBASE_CR4) {
 313                 *supported |= SUPPORTED_Autoneg |
 314                               SUPPORTED_40000baseCR4_Full;
 315                 *advertising |= ADVERTISED_Autoneg;
 316                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_40GB)
 317                         *advertising |= ADVERTISED_40000baseCR4_Full;
 318         }
 319         if (phy_types & I40E_CAP_PHY_TYPE_100BASE_TX) {
 320                 *supported |= SUPPORTED_Autoneg |
 321                               SUPPORTED_100baseT_Full;
 322                 *advertising |= ADVERTISED_Autoneg;
 323                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 324                         *advertising |= ADVERTISED_100baseT_Full;
 325         }
 326         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_T ||
 327             phy_types & I40E_CAP_PHY_TYPE_1000BASE_SX ||
 328             phy_types & I40E_CAP_PHY_TYPE_1000BASE_LX ||
 329             phy_types & I40E_CAP_PHY_TYPE_1000BASE_T_OPTICAL) {
 330                 *supported |= SUPPORTED_Autoneg |
 331                               SUPPORTED_1000baseT_Full;
 332                 *advertising |= ADVERTISED_Autoneg;
 333                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 334                         *advertising |= ADVERTISED_1000baseT_Full;
 335         }
 336         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_SR4)
 337                 *supported |= SUPPORTED_40000baseSR4_Full;
 338         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_LR4)
 339                 *supported |= SUPPORTED_40000baseLR4_Full;
 340         if (phy_types & I40E_CAP_PHY_TYPE_40GBASE_KR4) {
 341                 *supported |= SUPPORTED_40000baseKR4_Full |
 342                               SUPPORTED_Autoneg;
 343                 *advertising |= ADVERTISED_40000baseKR4_Full |
 344                                 ADVERTISED_Autoneg;
 345         }
 346         if (phy_types & I40E_CAP_PHY_TYPE_20GBASE_KR2) {
 347                 *supported |= SUPPORTED_20000baseKR2_Full |
 348                               SUPPORTED_Autoneg;
 349                 *advertising |= ADVERTISED_Autoneg;
 350                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_20GB)
 351                         *advertising |= ADVERTISED_20000baseKR2_Full;
 352         }
 353         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KR) {
 354                 *supported |= SUPPORTED_10000baseKR_Full |
 355                               SUPPORTED_Autoneg;
 356                 *advertising |= ADVERTISED_Autoneg;
 357                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 358                         *advertising |= ADVERTISED_10000baseKR_Full;
 359         }
 360         if (phy_types & I40E_CAP_PHY_TYPE_10GBASE_KX4) {
 361                 *supported |= SUPPORTED_10000baseKX4_Full |
 362                               SUPPORTED_Autoneg;
 363                 *advertising |= ADVERTISED_Autoneg;
 364                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 365                         *advertising |= ADVERTISED_10000baseKX4_Full;
 366         }
 367         if (phy_types & I40E_CAP_PHY_TYPE_1000BASE_KX) {
 368                 *supported |= SUPPORTED_1000baseKX_Full |
 369                               SUPPORTED_Autoneg;
 370                 *advertising |= ADVERTISED_Autoneg;
 371                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 372                         *advertising |= ADVERTISED_1000baseKX_Full;
 373         }
 374 }
 375
 376 /**
 377  * i40e_get_settings_link_up - Get the Link settings for when link is up
 378  * @hw: hw structure
 379  * @ecmd: ethtool command to fill in
 380  * @netdev: network interface device structure
 381  *
 382  **/
 383 static void i40e_get_settings_link_up(struct i40e_hw *hw,
 384                                       struct ethtool_cmd *ecmd,
 385                                       struct net_device *netdev,
 386                                       struct i40e_pf *pf)
 387 {
 388         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 389         u32 link_speed = hw_link_info->link_speed;
 390         u32 e_advertising = 0x0;
 391         u32 e_supported = 0x0;
 392
 393         /* Initialize supported and advertised settings based on phy settings */
 394         switch (hw_link_info->phy_type) {
 395         case I40E_PHY_TYPE_40GBASE_CR4:
 396         case I40E_PHY_TYPE_40GBASE_CR4_CU:
 397                 ecmd->supported = SUPPORTED_Autoneg |
 398                                   SUPPORTED_40000baseCR4_Full;
 399                 ecmd->advertising = ADVERTISED_Autoneg |
 400                                     ADVERTISED_40000baseCR4_Full;
 401                 break;
 402         case I40E_PHY_TYPE_XLAUI:
 403         case I40E_PHY_TYPE_XLPPI:
 404         case I40E_PHY_TYPE_40GBASE_AOC:
 405                 ecmd->supported = SUPPORTED_40000baseCR4_Full;
 406                 break;
 407         case I40E_PHY_TYPE_40GBASE_SR4:
 408                 ecmd->supported = SUPPORTED_40000baseSR4_Full;
 409                 break;
 410         case I40E_PHY_TYPE_40GBASE_LR4:
 411                 ecmd->supported = SUPPORTED_40000baseLR4_Full;
 412                 break;
 413         case I40E_PHY_TYPE_10GBASE_SR:
 414         case I40E_PHY_TYPE_10GBASE_LR:
 415         case I40E_PHY_TYPE_1000BASE_SX:
 416         case I40E_PHY_TYPE_1000BASE_LX:
 417                 ecmd->supported = SUPPORTED_10000baseT_Full;
 418                 if (hw_link_info->module_type[2] &
 419                     I40E_MODULE_TYPE_1000BASE_SX ||
 420                     hw_link_info->module_type[2] &
 421                     I40E_MODULE_TYPE_1000BASE_LX) {
 422                         ecmd->supported |= SUPPORTED_1000baseT_Full;
 423                         if (hw_link_info->requested_speeds &
 424                             I40E_LINK_SPEED_1GB)
 425                                 ecmd->advertising |= ADVERTISED_1000baseT_Full;
 426                 }
 427                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 428                         ecmd->advertising |= ADVERTISED_10000baseT_Full;
 429                 break;
 430         case I40E_PHY_TYPE_10GBASE_T:
 431         case I40E_PHY_TYPE_1000BASE_T:
 432         case I40E_PHY_TYPE_100BASE_TX:
 433                 ecmd->supported = SUPPORTED_Autoneg |
 434                                   SUPPORTED_10000baseT_Full |
 435                                   SUPPORTED_1000baseT_Full |
 436                                   SUPPORTED_100baseT_Full;
 437                 ecmd->advertising = ADVERTISED_Autoneg;
 438                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_10GB)
 439                         ecmd->advertising |= ADVERTISED_10000baseT_Full;
 440                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 441                         ecmd->advertising |= ADVERTISED_1000baseT_Full;
 442                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_100MB)
 443                         ecmd->advertising |= ADVERTISED_100baseT_Full;
 444                 break;
 445         case I40E_PHY_TYPE_1000BASE_T_OPTICAL:
 446                 ecmd->supported = SUPPORTED_Autoneg |
 447                                   SUPPORTED_1000baseT_Full;
 448                 ecmd->advertising = ADVERTISED_Autoneg |
 449                                     ADVERTISED_1000baseT_Full;
 450                 break;
 451         case I40E_PHY_TYPE_10GBASE_CR1_CU:
 452         case I40E_PHY_TYPE_10GBASE_CR1:
 453                 ecmd->supported = SUPPORTED_Autoneg |
 454                                   SUPPORTED_10000baseT_Full;
 455                 ecmd->advertising = ADVERTISED_Autoneg |
 456                                     ADVERTISED_10000baseT_Full;
 457                 break;
 458         case I40E_PHY_TYPE_XAUI:
 459         case I40E_PHY_TYPE_XFI:
 460         case I40E_PHY_TYPE_SFI:
 461         case I40E_PHY_TYPE_10GBASE_SFPP_CU:
 462         case I40E_PHY_TYPE_10GBASE_AOC:
 463                 ecmd->supported = SUPPORTED_10000baseT_Full;
 464                 ecmd->advertising = SUPPORTED_10000baseT_Full;
 465                 break;
 466         case I40E_PHY_TYPE_SGMII:
 467                 ecmd->supported = SUPPORTED_Autoneg |
 468                                   SUPPORTED_1000baseT_Full;
 469                 if (hw_link_info->requested_speeds & I40E_LINK_SPEED_1GB)
 470                         ecmd->advertising |= ADVERTISED_1000baseT_Full;
 471                 if (pf->flags & I40E_FLAG_100M_SGMII_CAPABLE) {
 472                         ecmd->supported |= SUPPORTED_100baseT_Full;
 473                         if (hw_link_info->requested_speeds &
 474                             I40E_LINK_SPEED_100MB)
 475                                 ecmd->advertising |= ADVERTISED_100baseT_Full;
 476                 }
 477                 break;
 478         case I40E_PHY_TYPE_40GBASE_KR4:
 479         case I40E_PHY_TYPE_20GBASE_KR2:
 480         case I40E_PHY_TYPE_10GBASE_KR:
 481         case I40E_PHY_TYPE_10GBASE_KX4:
 482         case I40E_PHY_TYPE_1000BASE_KX:
 483                 ecmd->supported |= SUPPORTED_40000baseKR4_Full |
 484                                    SUPPORTED_20000baseKR2_Full |
 485                                    SUPPORTED_10000baseKR_Full |
 486                                    SUPPORTED_10000baseKX4_Full |
 487                                    SUPPORTED_1000baseKX_Full |
 488                                    SUPPORTED_Autoneg;
 489                 ecmd->advertising |= ADVERTISED_40000baseKR4_Full |
 490                                      ADVERTISED_20000baseKR2_Full |
 491                                      ADVERTISED_10000baseKR_Full |
 492                                      ADVERTISED_10000baseKX4_Full |
 493                                      ADVERTISED_1000baseKX_Full |
 494                                      ADVERTISED_Autoneg;
 495                 break;
 496         default:
 497                 /* if we got here and link is up something bad is afoot */
 498                 netdev_info(netdev, "WARNING: Link is up but PHY type 0x%x is not recognized.\n",
 499                             hw_link_info->phy_type);
 500         }
 501
 502         /* Now that we've worked out everything that could be supported by the
 503          * current PHY type, get what is supported by the NVM and them to
 504          * get what is truly supported
 505          */
 506         i40e_phy_type_to_ethtool(pf, &e_supported,
 507                                  &e_advertising);
 508
 509         ecmd->supported = ecmd->supported & e_supported;
 510         ecmd->advertising = ecmd->advertising & e_advertising;
 511
 512         /* Set speed and duplex */
 513         switch (link_speed) {
 514         case I40E_LINK_SPEED_40GB:
 515                 ethtool_cmd_speed_set(ecmd, SPEED_40000);
 516                 break;
 517         case I40E_LINK_SPEED_20GB:
 518                 ethtool_cmd_speed_set(ecmd, SPEED_20000);
 519                 break;
 520         case I40E_LINK_SPEED_10GB:
 521                 ethtool_cmd_speed_set(ecmd, SPEED_10000);
 522                 break;
 523         case I40E_LINK_SPEED_1GB:
 524                 ethtool_cmd_speed_set(ecmd, SPEED_1000);
 525                 break;
 526         case I40E_LINK_SPEED_100MB:
 527                 ethtool_cmd_speed_set(ecmd, SPEED_100);
 528                 break;
 529         default:
 530                 break;
 531         }
 532         ecmd->duplex = DUPLEX_FULL;
 533 }
 534
 535 /**
 536  * i40e_get_settings_link_down - Get the Link settings for when link is down
 537  * @hw: hw structure
 538  * @ecmd: ethtool command to fill in
 539  *
 540  * Reports link settings that can be determined when link is down
 541  **/
 542 static void i40e_get_settings_link_down(struct i40e_hw *hw,
 543                                         struct ethtool_cmd *ecmd,
 544                                         struct i40e_pf *pf)
 545 {
 546         /* link is down and the driver needs to fall back on
 547          * supported phy types to figure out what info to display
 548          */
 549         i40e_phy_type_to_ethtool(pf, &ecmd->supported,
 550                                  &ecmd->advertising);
 551
 552         /* With no link speed and duplex are unknown */
 553         ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN);
 554         ecmd->duplex = DUPLEX_UNKNOWN;
 555 }
 556
 557 /**
 558  * i40e_get_settings - Get Link Speed and Duplex settings
 559  * @netdev: network interface device structure
 560  * @ecmd: ethtool command
 561  *
 562  * Reports speed/duplex settings based on media_type
 563  **/
 564 static int i40e_get_settings(struct net_device *netdev,
 565                              struct ethtool_cmd *ecmd)
 566 {
 567         struct i40e_netdev_priv *np = netdev_priv(netdev);
 568         struct i40e_pf *pf = np->vsi->back;
 569         struct i40e_hw *hw = &pf->hw;
 570         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 571         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
 572
 573         if (link_up)
 574                 i40e_get_settings_link_up(hw, ecmd, netdev, pf);
 575         else
 576                 i40e_get_settings_link_down(hw, ecmd, pf);
 577
 578         /* Now set the settings that don't rely on link being up/down */
 579         /* Set autoneg settings */
 580         ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 581                           AUTONEG_ENABLE : AUTONEG_DISABLE);
 582
 583         switch (hw->phy.media_type) {
 584         case I40E_MEDIA_TYPE_BACKPLANE:
 585                 ecmd->supported |= SUPPORTED_Autoneg |
 586                                    SUPPORTED_Backplane;
 587                 ecmd->advertising |= ADVERTISED_Autoneg |
 588                                      ADVERTISED_Backplane;
 589                 ecmd->port = PORT_NONE;
 590                 break;
 591         case I40E_MEDIA_TYPE_BASET:
 592                 ecmd->supported |= SUPPORTED_TP;
 593                 ecmd->advertising |= ADVERTISED_TP;
 594                 ecmd->port = PORT_TP;
 595                 break;
 596         case I40E_MEDIA_TYPE_DA:
 597         case I40E_MEDIA_TYPE_CX4:
 598                 ecmd->supported |= SUPPORTED_FIBRE;
 599                 ecmd->advertising |= ADVERTISED_FIBRE;
 600                 ecmd->port = PORT_DA;
 601                 break;
 602         case I40E_MEDIA_TYPE_FIBER:
 603                 ecmd->supported |= SUPPORTED_FIBRE;
 604                 ecmd->port = PORT_FIBRE;
 605                 break;
 606         case I40E_MEDIA_TYPE_UNKNOWN:
 607         default:
 608                 ecmd->port = PORT_OTHER;
 609                 break;
 610         }
 611
 612         /* Set transceiver */
 613         ecmd->transceiver = XCVR_EXTERNAL;
 614
 615         /* Set flow control settings */
 616         ecmd->supported |= SUPPORTED_Pause;
 617
 618         switch (hw->fc.requested_mode) {
 619         case I40E_FC_FULL:
 620                 ecmd->advertising |= ADVERTISED_Pause;
 621                 break;
 622         case I40E_FC_TX_PAUSE:
 623                 ecmd->advertising |= ADVERTISED_Asym_Pause;
 624                 break;
 625         case I40E_FC_RX_PAUSE:
 626                 ecmd->advertising |= (ADVERTISED_Pause |
 627                                       ADVERTISED_Asym_Pause);
 628                 break;
 629         default:
 630                 ecmd->advertising &= ~(ADVERTISED_Pause |
 631                                        ADVERTISED_Asym_Pause);
 632                 break;
 633         }
 634
 635         return 0;
 636 }
 637
 638 /**
 639  * i40e_set_settings - Set Speed and Duplex
 640  * @netdev: network interface device structure
 641  * @ecmd: ethtool command
 642  *
 643  * Set speed/duplex per media_types advertised/forced
 644  **/
 645 static int i40e_set_settings(struct net_device *netdev,
 646                              struct ethtool_cmd *ecmd)
 647 {
 648         struct i40e_netdev_priv *np = netdev_priv(netdev);
 649         struct i40e_aq_get_phy_abilities_resp abilities;
 650         struct i40e_aq_set_phy_config config;
 651         struct i40e_pf *pf = np->vsi->back;
 652         struct i40e_vsi *vsi = np->vsi;
 653         struct i40e_hw *hw = &pf->hw;
 654         struct ethtool_cmd safe_ecmd;
 655         i40e_status status = 0;
 656         bool change = false;
 657         int err = 0;
 658         u8 autoneg;
 659         u32 advertise;
 660
 661         /* Changing port settings is not supported if this isn't the
 662          * port's controlling PF
 663          */
 664         if (hw->partition_id != 1) {
 665                 i40e_partition_setting_complaint(pf);
 666                 return -EOPNOTSUPP;
 667         }
 668
 669         if (vsi != pf->vsi[pf->lan_vsi])
 670                 return -EOPNOTSUPP;
 671
 672         if (hw->phy.media_type != I40E_MEDIA_TYPE_BASET &&
 673             hw->phy.media_type != I40E_MEDIA_TYPE_FIBER &&
 674             hw->phy.media_type != I40E_MEDIA_TYPE_BACKPLANE &&
 675             hw->phy.media_type != I40E_MEDIA_TYPE_DA &&
 676             hw->phy.link_info.link_info & I40E_AQ_LINK_UP)
 677                 return -EOPNOTSUPP;
 678
 679         if (hw->device_id == I40E_DEV_ID_KX_B ||
 680             hw->device_id == I40E_DEV_ID_KX_C ||
 681             hw->device_id == I40E_DEV_ID_20G_KR2 ||
 682             hw->device_id == I40E_DEV_ID_20G_KR2_A) {
 683                 netdev_info(netdev, "Changing settings is not supported on backplane.\n");
 684                 return -EOPNOTSUPP;
 685         }
 686
 687         /* get our own copy of the bits to check against */
 688         memset(&safe_ecmd, 0, sizeof(struct ethtool_cmd));
 689         i40e_get_settings(netdev, &safe_ecmd);
 690
 691         /* save autoneg and speed out of ecmd */
 692         autoneg = ecmd->autoneg;
 693         advertise = ecmd->advertising;
 694
 695         /* set autoneg and speed back to what they currently are */
 696         ecmd->autoneg = safe_ecmd.autoneg;
 697         ecmd->advertising = safe_ecmd.advertising;
 698
 699         ecmd->cmd = safe_ecmd.cmd;
 700         /* If ecmd and safe_ecmd are not the same now, then they are
 701          * trying to set something that we do not support
 702          */
 703         if (memcmp(ecmd, &safe_ecmd, sizeof(struct ethtool_cmd)))
 704                 return -EOPNOTSUPP;
 705
 706         while (test_bit(__I40E_CONFIG_BUSY, &vsi->state))
 707                 usleep_range(1000, 2000);
 708
 709         /* Get the current phy config */
 710         status = i40e_aq_get_phy_capabilities(hw, false, false, &abilities,
 711                                               NULL);
 712         if (status)
 713                 return -EAGAIN;
 714
 715         /* Copy abilities to config in case autoneg is not
 716          * set below
 717          */
 718         memset(&config, 0, sizeof(struct i40e_aq_set_phy_config));
 719         config.abilities = abilities.abilities;
 720
 721         /* Check autoneg */
 722         if (autoneg == AUTONEG_ENABLE) {
 723                 /* If autoneg was not already enabled */
 724                 if (!(hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED)) {
 725                         /* If autoneg is not supported, return error */
 726                         if (!(safe_ecmd.supported & SUPPORTED_Autoneg)) {
 727                                 netdev_info(netdev, "Autoneg not supported on this phy\n");
 728                                 return -EINVAL;
 729                         }
 730                         /* Autoneg is allowed to change */
 731                         config.abilities = abilities.abilities |
 732                                            I40E_AQ_PHY_ENABLE_AN;
 733                         change = true;
 734                 }
 735         } else {
 736                 /* If autoneg is currently enabled */
 737                 if (hw->phy.link_info.an_info & I40E_AQ_AN_COMPLETED) {
 738                         /* If autoneg is supported 10GBASE_T is the only PHY
 739                          * that can disable it, so otherwise return error
 740                          */
 741                         if (safe_ecmd.supported & SUPPORTED_Autoneg &&
 742                             hw->phy.link_info.phy_type !=
 743                             I40E_PHY_TYPE_10GBASE_T) {
 744                                 netdev_info(netdev, "Autoneg cannot be disabled on this phy\n");
 745                                 return -EINVAL;
 746                         }
 747                         /* Autoneg is allowed to change */
 748                         config.abilities = abilities.abilities &
 749                                            ~I40E_AQ_PHY_ENABLE_AN;
 750                         change = true;
 751                 }
 752         }
 753
 754         if (advertise & ~safe_ecmd.supported)
 755                 return -EINVAL;
 756
 757         if (advertise & ADVERTISED_100baseT_Full)
 758                 config.link_speed |= I40E_LINK_SPEED_100MB;
 759         if (advertise & ADVERTISED_1000baseT_Full ||
 760             advertise & ADVERTISED_1000baseKX_Full)
 761                 config.link_speed |= I40E_LINK_SPEED_1GB;
 762         if (advertise & ADVERTISED_10000baseT_Full ||
 763             advertise & ADVERTISED_10000baseKX4_Full ||
 764             advertise & ADVERTISED_10000baseKR_Full)
 765                 config.link_speed |= I40E_LINK_SPEED_10GB;
 766         if (advertise & ADVERTISED_20000baseKR2_Full)
 767                 config.link_speed |= I40E_LINK_SPEED_20GB;
 768         if (advertise & ADVERTISED_40000baseKR4_Full ||
 769             advertise & ADVERTISED_40000baseCR4_Full ||
 770             advertise & ADVERTISED_40000baseSR4_Full ||
 771             advertise & ADVERTISED_40000baseLR4_Full)
 772                 config.link_speed |= I40E_LINK_SPEED_40GB;
 773
 774         /* If speed didn't get set, set it to what it currently is.
 775          * This is needed because if advertise is 0 (as it is when autoneg
 776          * is disabled) then speed won't get set.
 777          */
 778         if (!config.link_speed)
 779                 config.link_speed = abilities.link_speed;
 780
 781         if (change || (abilities.link_speed != config.link_speed)) {
 782                 /* copy over the rest of the abilities */
 783                 config.phy_type = abilities.phy_type;
 784                 config.eee_capability = abilities.eee_capability;
 785                 config.eeer = abilities.eeer_val;
 786                 config.low_power_ctrl = abilities.d3_lpan;
 787
 788                 /* save the requested speeds */
 789                 hw->phy.link_info.requested_speeds = config.link_speed;
 790                 /* set link and auto negotiation so changes take effect */
 791                 config.abilities |= I40E_AQ_PHY_ENABLE_ATOMIC_LINK;
 792                 /* If link is up put link down */
 793                 if (hw->phy.link_info.link_info & I40E_AQ_LINK_UP) {
 794                         /* Tell the OS link is going down, the link will go
 795                          * back up when fw says it is ready asynchronously
 796                          */
 797                         i40e_print_link_message(vsi, false);
 798                         netif_carrier_off(netdev);
 799                         netif_tx_stop_all_queues(netdev);
 800                 }
 801
 802                 /* make the aq call */
 803                 status = i40e_aq_set_phy_config(hw, &config, NULL);
 804                 if (status) {
 805                         netdev_info(netdev, "Set phy config failed, err %s aq_err %s\n",
 806                                     i40e_stat_str(hw, status),
 807                                     i40e_aq_str(hw, hw->aq.asq_last_status));
 808                         return -EAGAIN;
 809                 }
 810
 811                 status = i40e_update_link_info(hw);
 812                 if (status)
 813                         netdev_dbg(netdev, "Updating link info failed with err %s aq_err %s\n",
 814                                    i40e_stat_str(hw, status),
 815                                    i40e_aq_str(hw, hw->aq.asq_last_status));
 816
 817         } else {
 818                 netdev_info(netdev, "Nothing changed, exiting without setting anything.\n");
 819         }
 820
 821         return err;
 822 }
 823
 824 static int i40e_nway_reset(struct net_device *netdev)
 825 {
 826         /* restart autonegotiation */
 827         struct i40e_netdev_priv *np = netdev_priv(netdev);
 828         struct i40e_pf *pf = np->vsi->back;
 829         struct i40e_hw *hw = &pf->hw;
 830         bool link_up = hw->phy.link_info.link_info & I40E_AQ_LINK_UP;
 831         i40e_status ret = 0;
 832
 833         ret = i40e_aq_set_link_restart_an(hw, link_up, NULL);
 834         if (ret) {
 835                 netdev_info(netdev, "link restart failed, err %s aq_err %s\n",
 836                             i40e_stat_str(hw, ret),
 837                             i40e_aq_str(hw, hw->aq.asq_last_status));
 838                 return -EIO;
 839         }
 840
 841         return 0;
 842 }
 843
 844 /**
 845  * i40e_get_pauseparam -  Get Flow Control status
 846  * Return tx/rx-pause status
 847  **/
 848 static void i40e_get_pauseparam(struct net_device *netdev,
 849                                 struct ethtool_pauseparam *pause)
 850 {
 851         struct i40e_netdev_priv *np = netdev_priv(netdev);
 852         struct i40e_pf *pf = np->vsi->back;
 853         struct i40e_hw *hw = &pf->hw;
 854         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 855         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
 856
 857         pause->autoneg =
 858                 ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 859                   AUTONEG_ENABLE : AUTONEG_DISABLE);
 860
 861         /* PFC enabled so report LFC as off */
 862         if (dcbx_cfg->pfc.pfcenable) {
 863                 pause->rx_pause = 0;
 864                 pause->tx_pause = 0;
 865                 return;
 866         }
 867
 868         if (hw->fc.current_mode == I40E_FC_RX_PAUSE) {
 869                 pause->rx_pause = 1;
 870         } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) {
 871                 pause->tx_pause = 1;
 872         } else if (hw->fc.current_mode == I40E_FC_FULL) {
 873                 pause->rx_pause = 1;
 874                 pause->tx_pause = 1;
 875         }
 876 }
 877
 878 /**
 879  * i40e_set_pauseparam - Set Flow Control parameter
 880  * @netdev: network interface device structure
 881  * @pause: return tx/rx flow control status
 882  **/
 883 static int i40e_set_pauseparam(struct net_device *netdev,
 884                                struct ethtool_pauseparam *pause)
 885 {
 886         struct i40e_netdev_priv *np = netdev_priv(netdev);
 887         struct i40e_pf *pf = np->vsi->back;
 888         struct i40e_vsi *vsi = np->vsi;
 889         struct i40e_hw *hw = &pf->hw;
 890         struct i40e_link_status *hw_link_info = &hw->phy.link_info;
 891         struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config;
 892         bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP;
 893         i40e_status status;
 894         u8 aq_failures;
 895         int err = 0;
 896
 897         /* Changing the port's flow control is not supported if this isn't the
 898          * port's controlling PF
 899          */
 900         if (hw->partition_id != 1) {
 901                 i40e_partition_setting_complaint(pf);
 902                 return -EOPNOTSUPP;
 903         }
 904
 905         if (vsi != pf->vsi[pf->lan_vsi])
 906                 return -EOPNOTSUPP;
 907
 908         if (pause->autoneg != ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ?
 909             AUTONEG_ENABLE : AUTONEG_DISABLE)) {
 910                 netdev_info(netdev, "To change autoneg please use: ethtool -s <dev> autoneg <on|off>\n");
 911                 return -EOPNOTSUPP;
 912         }
 913
 914         /* If we have link and don't have autoneg */
 915         if (!test_bit(__I40E_DOWN, &pf->state) &&
 916             !(hw_link_info->an_info & I40E_AQ_AN_COMPLETED)) {
 917                 /* Send message that it might not necessarily work*/
 918                 netdev_info(netdev, "Autoneg did not complete so changing settings may not result in an actual change.\n");
 919         }
 920
 921         if (dcbx_cfg->pfc.pfcenable) {
 922                 netdev_info(netdev,
 923                             "Priority flow control enabled. Cannot set link flow control.\n");
 924                 return -EOPNOTSUPP;
 925         }
 926
 927         if (pause->rx_pause && pause->tx_pause)
 928                 hw->fc.requested_mode = I40E_FC_FULL;
 929         else if (pause->rx_pause && !pause->tx_pause)
 930                 hw->fc.requested_mode = I40E_FC_RX_PAUSE;
 931         else if (!pause->rx_pause && pause->tx_pause)
 932                 hw->fc.requested_mode = I40E_FC_TX_PAUSE;
 933         else if (!pause->rx_pause && !pause->tx_pause)
 934                 hw->fc.requested_mode = I40E_FC_NONE;
 935         else
 936                  return -EINVAL;
 937
 938         /* Tell the OS link is going down, the link will go back up when fw
 939          * says it is ready asynchronously
 940          */
 941         i40e_print_link_message(vsi, false);
 942         netif_carrier_off(netdev);
 943         netif_tx_stop_all_queues(netdev);
 944
 945         /* Set the fc mode and only restart an if link is up*/
 946         status = i40e_set_fc(hw, &aq_failures, link_up);
 947
 948         if (aq_failures & I40E_SET_FC_AQ_FAIL_GET) {
 949                 netdev_info(netdev, "Set fc failed on the get_phy_capabilities call with err %s aq_err %s\n",
 950                             i40e_stat_str(hw, status),
 951                             i40e_aq_str(hw, hw->aq.asq_last_status));
 952                 err = -EAGAIN;
 953         }
 954         if (aq_failures & I40E_SET_FC_AQ_FAIL_SET) {
 955                 netdev_info(netdev, "Set fc failed on the set_phy_config call with err %s aq_err %s\n",
 956                             i40e_stat_str(hw, status),
 957                             i40e_aq_str(hw, hw->aq.asq_last_status));
 958                 err = -EAGAIN;
 959         }
 960         if (aq_failures & I40E_SET_FC_AQ_FAIL_UPDATE) {
 961                 netdev_info(netdev, "Set fc failed on the get_link_info call with err %s aq_err %s\n",
 962                             i40e_stat_str(hw, status),
 963                             i40e_aq_str(hw, hw->aq.asq_last_status));
 964                 err = -EAGAIN;
 965         }
 966
 967         if (!test_bit(__I40E_DOWN, &pf->state)) {
 968                 /* Give it a little more time to try to come back */
 969                 msleep(75);
 970                 if (!test_bit(__I40E_DOWN, &pf->state))
 971                         return i40e_nway_reset(netdev);
 972         }
 973
 974         return err;
 975 }
 976
 977 static u32 i40e_get_msglevel(struct net_device *netdev)
 978 {
 979         struct i40e_netdev_priv *np = netdev_priv(netdev);
 980         struct i40e_pf *pf = np->vsi->back;
 981
 982         return pf->msg_enable;
 983 }
 984
 985 static void i40e_set_msglevel(struct net_device *netdev, u32 data)
 986 {
 987         struct i40e_netdev_priv *np = netdev_priv(netdev);
 988         struct i40e_pf *pf = np->vsi->back;
 989
 990         if (I40E_DEBUG_USER & data)
 991                 pf->hw.debug_mask = data;
 992         pf->msg_enable = data;
 993 }
 994
 995 static int i40e_get_regs_len(struct net_device *netdev)
 996 {
 997         int reg_count = 0;
 998         int i;
 999
1000         for (i = 0; i40e_reg_list[i].offset != 0; i++)
1001                 reg_count += i40e_reg_list[i].elements;
1002
1003         return reg_count * sizeof(u32);
1004 }
1005
1006 static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs,
1007                           void *p)
1008 {
1009         struct i40e_netdev_priv *np = netdev_priv(netdev);
1010         struct i40e_pf *pf = np->vsi->back;
1011         struct i40e_hw *hw = &pf->hw;
1012         u32 *reg_buf = p;
1013         int i, j, ri;
1014         u32 reg;
1015
1016         /* Tell ethtool which driver-version-specific regs output we have.
1017          *
1018          * At some point, if we have ethtool doing special formatting of
1019          * this data, it will rely on this version number to know how to
1020          * interpret things.  Hence, this needs to be updated if/when the
1021          * diags register table is changed.
1022          */
1023         regs->version = 1;
1024
1025         /* loop through the diags reg table for what to print */
1026         ri = 0;
1027         for (i = 0; i40e_reg_list[i].offset != 0; i++) {
1028                 for (j = 0; j < i40e_reg_list[i].elements; j++) {
1029                         reg = i40e_reg_list[i].offset
1030                                 + (j * i40e_reg_list[i].stride);
1031                         reg_buf[ri++] = rd32(hw, reg);
1032                 }
1033         }
1034
1035 }
1036
1037 static int i40e_get_eeprom(struct net_device *netdev,
1038                            struct ethtool_eeprom *eeprom, u8 *bytes)
1039 {
1040         struct i40e_netdev_priv *np = netdev_priv(netdev);
1041         struct i40e_hw *hw = &np->vsi->back->hw;
1042         struct i40e_pf *pf = np->vsi->back;
1043         int ret_val = 0, len, offset;
1044         u8 *eeprom_buff;
1045         u16 i, sectors;
1046         bool last;
1047         u32 magic;
1048
1049 #define I40E_NVM_SECTOR_SIZE  4096
1050         if (eeprom->len == 0)
1051                 return -EINVAL;
1052
1053         /* check for NVMUpdate access method */
1054         magic = hw->vendor_id | (hw->device_id << 16);
1055         if (eeprom->magic && eeprom->magic != magic) {
1056                 struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1057                 int errno = 0;
1058
1059                 /* make sure it is the right magic for NVMUpdate */
1060                 if ((eeprom->magic >> 16) != hw->device_id)
1061                         errno = -EINVAL;
1062                 else if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
1063                          test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
1064                         errno = -EBUSY;
1065                 else
1066                         ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1067
1068                 if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1069                         dev_info(&pf->pdev->dev,
1070                                  "NVMUpdate read failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1071                                  ret_val, hw->aq.asq_last_status, errno,
1072                                  (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1073                                  cmd->offset, cmd->data_size);
1074
1075                 return errno;
1076         }
1077
1078         /* normal ethtool get_eeprom support */
1079         eeprom->magic = hw->vendor_id | (hw->device_id << 16);
1080
1081         eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL);
1082         if (!eeprom_buff)
1083                 return -ENOMEM;
1084
1085         ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ);
1086         if (ret_val) {
1087                 dev_info(&pf->pdev->dev,
1088                          "Failed Acquiring NVM resource for read err=%d status=0x%x\n",
1089                          ret_val, hw->aq.asq_last_status);
1090                 goto free_buff;
1091         }
1092
1093         sectors = eeprom->len / I40E_NVM_SECTOR_SIZE;
1094         sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0;
1095         len = I40E_NVM_SECTOR_SIZE;
1096         last = false;
1097         for (i = 0; i < sectors; i++) {
1098                 if (i == (sectors - 1)) {
1099                         len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i);
1100                         last = true;
1101                 }
1102                 offset = eeprom->offset + (I40E_NVM_SECTOR_SIZE * i),
1103                 ret_val = i40e_aq_read_nvm(hw, 0x0, offset, len,
1104                                 (u8 *)eeprom_buff + (I40E_NVM_SECTOR_SIZE * i),
1105                                 last, NULL);
1106                 if (ret_val && hw->aq.asq_last_status == I40E_AQ_RC_EPERM) {
1107                         dev_info(&pf->pdev->dev,
1108                                  "read NVM failed, invalid offset 0x%x\n",
1109                                  offset);
1110                         break;
1111                 } else if (ret_val &&
1112                            hw->aq.asq_last_status == I40E_AQ_RC_EACCES) {
1113                         dev_info(&pf->pdev->dev,
1114                                  "read NVM failed, access, offset 0x%x\n",
1115                                  offset);
1116                         break;
1117                 } else if (ret_val) {
1118                         dev_info(&pf->pdev->dev,
1119                                  "read NVM failed offset %d err=%d status=0x%x\n",
1120                                  offset, ret_val, hw->aq.asq_last_status);
1121                         break;
1122                 }
1123         }
1124
1125         i40e_release_nvm(hw);
1126         memcpy(bytes, (u8 *)eeprom_buff, eeprom->len);
1127 free_buff:
1128         kfree(eeprom_buff);
1129         return ret_val;
1130 }
1131
1132 static int i40e_get_eeprom_len(struct net_device *netdev)
1133 {
1134         struct i40e_netdev_priv *np = netdev_priv(netdev);
1135         struct i40e_hw *hw = &np->vsi->back->hw;
1136         u32 val;
1137
1138         val = (rd32(hw, I40E_GLPCI_LBARCTRL)
1139                 & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK)
1140                 >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT;
1141         /* register returns value in power of 2, 64Kbyte chunks. */
1142         val = (64 * 1024) * BIT(val);
1143         return val;
1144 }
1145
1146 static int i40e_set_eeprom(struct net_device *netdev,
1147                            struct ethtool_eeprom *eeprom, u8 *bytes)
1148 {
1149         struct i40e_netdev_priv *np = netdev_priv(netdev);
1150         struct i40e_hw *hw = &np->vsi->back->hw;
1151         struct i40e_pf *pf = np->vsi->back;
1152         struct i40e_nvm_access *cmd = (struct i40e_nvm_access *)eeprom;
1153         int ret_val = 0;
1154         int errno = 0;
1155         u32 magic;
1156
1157         /* normal ethtool set_eeprom is not supported */
1158         magic = hw->vendor_id | (hw->device_id << 16);
1159         if (eeprom->magic == magic)
1160                 errno = -EOPNOTSUPP;
1161         /* check for NVMUpdate access method */
1162         else if (!eeprom->magic || (eeprom->magic >> 16) != hw->device_id)
1163                 errno = -EINVAL;
1164         else if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
1165                  test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
1166                 errno = -EBUSY;
1167         else
1168                 ret_val = i40e_nvmupd_command(hw, cmd, bytes, &errno);
1169
1170         if ((errno || ret_val) && (hw->debug_mask & I40E_DEBUG_NVM))
1171                 dev_info(&pf->pdev->dev,
1172                          "NVMUpdate write failed err=%d status=0x%x errno=%d module=%d offset=0x%x size=%d\n",
1173                          ret_val, hw->aq.asq_last_status, errno,
1174                          (u8)(cmd->config & I40E_NVM_MOD_PNT_MASK),
1175                          cmd->offset, cmd->data_size);
1176
1177         return errno;
1178 }
1179
1180 static void i40e_get_drvinfo(struct net_device *netdev,
1181                              struct ethtool_drvinfo *drvinfo)
1182 {
1183         struct i40e_netdev_priv *np = netdev_priv(netdev);
1184         struct i40e_vsi *vsi = np->vsi;
1185         struct i40e_pf *pf = vsi->back;
1186
1187         strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver));
1188         strlcpy(drvinfo->version, i40e_driver_version_str,
1189                 sizeof(drvinfo->version));
1190         strlcpy(drvinfo->fw_version, i40e_nvm_version_str(&pf->hw),
1191                 sizeof(drvinfo->fw_version));
1192         strlcpy(drvinfo->bus_info, pci_name(pf->pdev),
1193                 sizeof(drvinfo->bus_info));
1194         if (pf->hw.pf_id == 0)
1195                 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_GL_STR_LEN;
1196         else
1197                 drvinfo->n_priv_flags = I40E_PRIV_FLAGS_STR_LEN;
1198 }
1199
1200 static void i40e_get_ringparam(struct net_device *netdev,
1201                                struct ethtool_ringparam *ring)
1202 {
1203         struct i40e_netdev_priv *np = netdev_priv(netdev);
1204         struct i40e_pf *pf = np->vsi->back;
1205         struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi];
1206
1207         ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1208         ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS;
1209         ring->rx_mini_max_pending = 0;
1210         ring->rx_jumbo_max_pending = 0;
1211         ring->rx_pending = vsi->rx_rings[0]->count;
1212         ring->tx_pending = vsi->tx_rings[0]->count;
1213         ring->rx_mini_pending = 0;
1214         ring->rx_jumbo_pending = 0;
1215 }
1216
1217 static int i40e_set_ringparam(struct net_device *netdev,
1218                               struct ethtool_ringparam *ring)
1219 {
1220         struct i40e_ring *tx_rings = NULL, *rx_rings = NULL;
1221         struct i40e_netdev_priv *np = netdev_priv(netdev);
1222         struct i40e_vsi *vsi = np->vsi;
1223         struct i40e_pf *pf = vsi->back;
1224         u32 new_rx_count, new_tx_count;
1225         int i, err = 0;
1226
1227         if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
1228                 return -EINVAL;
1229
1230         if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1231             ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS ||
1232             ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS ||
1233             ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) {
1234                 netdev_info(netdev,
1235                             "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n",
1236                             ring->tx_pending, ring->rx_pending,
1237                             I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS);
1238                 return -EINVAL;
1239         }
1240
1241         new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1242         new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE);
1243
1244         /* if nothing to do return success */
1245         if ((new_tx_count == vsi->tx_rings[0]->count) &&
1246             (new_rx_count == vsi->rx_rings[0]->count))
1247                 return 0;
1248
1249         while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state))
1250                 usleep_range(1000, 2000);
1251
1252         if (!netif_running(vsi->netdev)) {
1253                 /* simple case - set for the next time the netdev is started */
1254                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1255                         vsi->tx_rings[i]->count = new_tx_count;
1256                         vsi->rx_rings[i]->count = new_rx_count;
1257                 }
1258                 goto done;
1259         }
1260
1261         /* We can't just free everything and then setup again,
1262          * because the ISRs in MSI-X mode get passed pointers
1263          * to the Tx and Rx ring structs.
1264          */
1265
1266         /* alloc updated Tx resources */
1267         if (new_tx_count != vsi->tx_rings[0]->count) {
1268                 netdev_info(netdev,
1269                             "Changing Tx descriptor count from %d to %d.\n",
1270                             vsi->tx_rings[0]->count, new_tx_count);
1271                 tx_rings = kcalloc(vsi->alloc_queue_pairs,
1272                                    sizeof(struct i40e_ring), GFP_KERNEL);
1273                 if (!tx_rings) {
1274                         err = -ENOMEM;
1275                         goto done;
1276                 }
1277
1278                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1279                         /* clone ring and setup updated count */
1280                         tx_rings[i] = *vsi->tx_rings[i];
1281                         tx_rings[i].count = new_tx_count;
1282                         /* the desc and bi pointers will be reallocated in the
1283                          * setup call
1284                          */
1285                         tx_rings[i].desc = NULL;
1286                         tx_rings[i].rx_bi = NULL;
1287                         err = i40e_setup_tx_descriptors(&tx_rings[i]);
1288                         if (err) {
1289                                 while (i) {
1290                                         i--;
1291                                         i40e_free_tx_resources(&tx_rings[i]);
1292                                 }
1293                                 kfree(tx_rings);
1294                                 tx_rings = NULL;
1295
1296                                 goto done;
1297                         }
1298                 }
1299         }
1300
1301         /* alloc updated Rx resources */
1302         if (new_rx_count != vsi->rx_rings[0]->count) {
1303                 netdev_info(netdev,
1304                             "Changing Rx descriptor count from %d to %d\n",
1305                             vsi->rx_rings[0]->count, new_rx_count);
1306                 rx_rings = kcalloc(vsi->alloc_queue_pairs,
1307                                    sizeof(struct i40e_ring), GFP_KERNEL);
1308                 if (!rx_rings) {
1309                         err = -ENOMEM;
1310                         goto free_tx;
1311                 }
1312
1313                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1314                         /* this is to allow wr32 to have something to write to
1315                          * during early allocation of Rx buffers
1316                          */
1317                         u32 __iomem faketail = 0;
1318                         struct i40e_ring *ring;
1319                         u16 unused;
1320
1321                         /* clone ring and setup updated count */
1322                         rx_rings[i] = *vsi->rx_rings[i];
1323                         rx_rings[i].count = new_rx_count;
1324                         /* the desc and bi pointers will be reallocated in the
1325                          * setup call
1326                          */
1327                         rx_rings[i].desc = NULL;
1328                         rx_rings[i].rx_bi = NULL;
1329                         rx_rings[i].tail = (u8 __iomem *)&faketail;
1330                         err = i40e_setup_rx_descriptors(&rx_rings[i]);
1331                         if (err)
1332                                 goto rx_unwind;
1333
1334                         /* now allocate the Rx buffers to make sure the OS
1335                          * has enough memory, any failure here means abort
1336                          */
1337                         ring = &rx_rings[i];
1338                         unused = I40E_DESC_UNUSED(ring);
1339                         err = i40e_alloc_rx_buffers(ring, unused);
1340 rx_unwind:
1341                         if (err) {
1342                                 do {
1343                                         i40e_free_rx_resources(&rx_rings[i]);
1344                                 } while (i--);
1345                                 kfree(rx_rings);
1346                                 rx_rings = NULL;
1347
1348                                 goto free_tx;
1349                         }
1350                 }
1351         }
1352
1353         /* Bring interface down, copy in the new ring info,
1354          * then restore the interface
1355          */
1356         i40e_down(vsi);
1357
1358         if (tx_rings) {
1359                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1360                         i40e_free_tx_resources(vsi->tx_rings[i]);
1361                         *vsi->tx_rings[i] = tx_rings[i];
1362                 }
1363                 kfree(tx_rings);
1364                 tx_rings = NULL;
1365         }
1366
1367         if (rx_rings) {
1368                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1369                         i40e_free_rx_resources(vsi->rx_rings[i]);
1370                         /* get the real tail offset */
1371                         rx_rings[i].tail = vsi->rx_rings[i]->tail;
1372                         /* this is to fake out the allocation routine
1373                          * into thinking it has to realloc everything
1374                          * but the recycling logic will let us re-use
1375                          * the buffers allocated above
1376                          */
1377                         rx_rings[i].next_to_use = 0;
1378                         rx_rings[i].next_to_clean = 0;
1379                         rx_rings[i].next_to_alloc = 0;
1380                         /* do a struct copy */
1381                         *vsi->rx_rings[i] = rx_rings[i];
1382                 }
1383                 kfree(rx_rings);
1384                 rx_rings = NULL;
1385         }
1386
1387         i40e_up(vsi);
1388
1389 free_tx:
1390         /* error cleanup if the Rx allocations failed after getting Tx */
1391         if (tx_rings) {
1392                 for (i = 0; i < vsi->num_queue_pairs; i++)
1393                         i40e_free_tx_resources(&tx_rings[i]);
1394                 kfree(tx_rings);
1395                 tx_rings = NULL;
1396         }
1397
1398 done:
1399         clear_bit(__I40E_CONFIG_BUSY, &pf->state);
1400
1401         return err;
1402 }
1403
1404 static int i40e_get_sset_count(struct net_device *netdev, int sset)
1405 {
1406         struct i40e_netdev_priv *np = netdev_priv(netdev);
1407         struct i40e_vsi *vsi = np->vsi;
1408         struct i40e_pf *pf = vsi->back;
1409
1410         switch (sset) {
1411         case ETH_SS_TEST:
1412                 return I40E_TEST_LEN;
1413         case ETH_SS_STATS:
1414                 if (vsi == pf->vsi[pf->lan_vsi] && pf->hw.partition_id == 1) {
1415                         int len = I40E_PF_STATS_LEN(netdev);
1416
1417                         if ((pf->lan_veb != I40E_NO_VEB) &&
1418                             (pf->flags & I40E_FLAG_VEB_STATS_ENABLED))
1419                                 len += I40E_VEB_STATS_TOTAL;
1420                         return len;
1421                 } else {
1422                         return I40E_VSI_STATS_LEN(netdev);
1423                 }
1424         case ETH_SS_PRIV_FLAGS:
1425                 if (pf->hw.pf_id == 0)
1426                         return I40E_PRIV_FLAGS_GL_STR_LEN;
1427                 else
1428                         return I40E_PRIV_FLAGS_STR_LEN;
1429         default:
1430                 return -EOPNOTSUPP;
1431         }
1432 }
1433
1434 static void i40e_get_ethtool_stats(struct net_device *netdev,
1435                                    struct ethtool_stats *stats, u64 *data)
1436 {
1437         struct i40e_netdev_priv *np = netdev_priv(netdev);
1438         struct i40e_ring *tx_ring, *rx_ring;
1439         struct i40e_vsi *vsi = np->vsi;
1440         struct i40e_pf *pf = vsi->back;
1441         int i = 0;
1442         char *p;
1443         int j;
1444         struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi);
1445         unsigned int start;
1446
1447         i40e_update_stats(vsi);
1448
1449         for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) {
1450                 p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset;
1451                 data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat ==
1452                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1453         }
1454         for (j = 0; j < I40E_MISC_STATS_LEN; j++) {
1455                 p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset;
1456                 data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat ==
1457                             sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1458         }
1459 #ifdef I40E_FCOE
1460         for (j = 0; j < I40E_FCOE_STATS_LEN; j++) {
1461                 p = (char *)vsi + i40e_gstrings_fcoe_stats[j].stat_offset;
1462                 data[i++] = (i40e_gstrings_fcoe_stats[j].sizeof_stat ==
1463                         sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1464         }
1465 #endif
1466         rcu_read_lock();
1467         for (j = 0; j < vsi->num_queue_pairs; j++) {
1468                 tx_ring = ACCESS_ONCE(vsi->tx_rings[j]);
1469
1470                 if (!tx_ring)
1471                         continue;
1472
1473                 /* process Tx ring statistics */
1474                 do {
1475                         start = u64_stats_fetch_begin_irq(&tx_ring->syncp);
1476                         data[i] = tx_ring->stats.packets;
1477                         data[i + 1] = tx_ring->stats.bytes;
1478                 } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start));
1479                 i += 2;
1480
1481                 /* Rx ring is the 2nd half of the queue pair */
1482                 rx_ring = &tx_ring[1];
1483                 do {
1484                         start = u64_stats_fetch_begin_irq(&rx_ring->syncp);
1485                         data[i] = rx_ring->stats.packets;
1486                         data[i + 1] = rx_ring->stats.bytes;
1487                 } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start));
1488                 i += 2;
1489         }
1490         rcu_read_unlock();
1491         if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1492                 return;
1493
1494         if ((pf->lan_veb != I40E_NO_VEB) &&
1495             (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
1496                 struct i40e_veb *veb = pf->veb[pf->lan_veb];
1497
1498                 for (j = 0; j < I40E_VEB_STATS_LEN; j++) {
1499                         p = (char *)veb;
1500                         p += i40e_gstrings_veb_stats[j].stat_offset;
1501                         data[i++] = (i40e_gstrings_veb_stats[j].sizeof_stat ==
1502                                      sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1503                 }
1504                 for (j = 0; j < I40E_MAX_TRAFFIC_CLASS; j++) {
1505                         data[i++] = veb->tc_stats.tc_tx_packets[j];
1506                         data[i++] = veb->tc_stats.tc_tx_bytes[j];
1507                         data[i++] = veb->tc_stats.tc_rx_packets[j];
1508                         data[i++] = veb->tc_stats.tc_rx_bytes[j];
1509                 }
1510         }
1511         for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) {
1512                 p = (char *)pf + i40e_gstrings_stats[j].stat_offset;
1513                 data[i++] = (i40e_gstrings_stats[j].sizeof_stat ==
1514                              sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
1515         }
1516         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1517                 data[i++] = pf->stats.priority_xon_tx[j];
1518                 data[i++] = pf->stats.priority_xoff_tx[j];
1519         }
1520         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) {
1521                 data[i++] = pf->stats.priority_xon_rx[j];
1522                 data[i++] = pf->stats.priority_xoff_rx[j];
1523         }
1524         for (j = 0; j < I40E_MAX_USER_PRIORITY; j++)
1525                 data[i++] = pf->stats.priority_xon_2_xoff[j];
1526 }
1527
1528 static void i40e_get_strings(struct net_device *netdev, u32 stringset,
1529                              u8 *data)
1530 {
1531         struct i40e_netdev_priv *np = netdev_priv(netdev);
1532         struct i40e_vsi *vsi = np->vsi;
1533         struct i40e_pf *pf = vsi->back;
1534         char *p = (char *)data;
1535         int i;
1536
1537         switch (stringset) {
1538         case ETH_SS_TEST:
1539                 for (i = 0; i < I40E_TEST_LEN; i++) {
1540                         memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN);
1541                         data += ETH_GSTRING_LEN;
1542                 }
1543                 break;
1544         case ETH_SS_STATS:
1545                 for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) {
1546                         snprintf(p, ETH_GSTRING_LEN, "%s",
1547                                  i40e_gstrings_net_stats[i].stat_string);
1548                         p += ETH_GSTRING_LEN;
1549                 }
1550                 for (i = 0; i < I40E_MISC_STATS_LEN; i++) {
1551                         snprintf(p, ETH_GSTRING_LEN, "%s",
1552                                  i40e_gstrings_misc_stats[i].stat_string);
1553                         p += ETH_GSTRING_LEN;
1554                 }
1555 #ifdef I40E_FCOE
1556                 for (i = 0; i < I40E_FCOE_STATS_LEN; i++) {
1557                         snprintf(p, ETH_GSTRING_LEN, "%s",
1558                                  i40e_gstrings_fcoe_stats[i].stat_string);
1559                         p += ETH_GSTRING_LEN;
1560                 }
1561 #endif
1562                 for (i = 0; i < vsi->num_queue_pairs; i++) {
1563                         snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_packets", i);
1564                         p += ETH_GSTRING_LEN;
1565                         snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i);
1566                         p += ETH_GSTRING_LEN;
1567                         snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_packets", i);
1568                         p += ETH_GSTRING_LEN;
1569                         snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i);
1570                         p += ETH_GSTRING_LEN;
1571                 }
1572                 if (vsi != pf->vsi[pf->lan_vsi] || pf->hw.partition_id != 1)
1573                         return;
1574
1575                 if ((pf->lan_veb != I40E_NO_VEB) &&
1576                     (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
1577                         for (i = 0; i < I40E_VEB_STATS_LEN; i++) {
1578                                 snprintf(p, ETH_GSTRING_LEN, "veb.%s",
1579                                         i40e_gstrings_veb_stats[i].stat_string);
1580                                 p += ETH_GSTRING_LEN;
1581                         }
1582                         for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
1583                                 snprintf(p, ETH_GSTRING_LEN,
1584                                          "veb.tc_%u_tx_packets", i);
1585                                 p += ETH_GSTRING_LEN;
1586                                 snprintf(p, ETH_GSTRING_LEN,
1587                                          "veb.tc_%u_tx_bytes", i);
1588                                 p += ETH_GSTRING_LEN;
1589                                 snprintf(p, ETH_GSTRING_LEN,
1590                                          "veb.tc_%u_rx_packets", i);
1591                                 p += ETH_GSTRING_LEN;
1592                                 snprintf(p, ETH_GSTRING_LEN,
1593                                          "veb.tc_%u_rx_bytes", i);
1594                                 p += ETH_GSTRING_LEN;
1595                         }
1596                 }
1597                 for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) {
1598                         snprintf(p, ETH_GSTRING_LEN, "port.%s",
1599                                  i40e_gstrings_stats[i].stat_string);
1600                         p += ETH_GSTRING_LEN;
1601                 }
1602                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1603                         snprintf(p, ETH_GSTRING_LEN,
1604                                  "port.tx_priority_%u_xon", i);
1605                         p += ETH_GSTRING_LEN;
1606                         snprintf(p, ETH_GSTRING_LEN,
1607                                  "port.tx_priority_%u_xoff", i);
1608                         p += ETH_GSTRING_LEN;
1609                 }
1610                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1611                         snprintf(p, ETH_GSTRING_LEN,
1612                                  "port.rx_priority_%u_xon", i);
1613                         p += ETH_GSTRING_LEN;
1614                         snprintf(p, ETH_GSTRING_LEN,
1615                                  "port.rx_priority_%u_xoff", i);
1616                         p += ETH_GSTRING_LEN;
1617                 }
1618                 for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) {
1619                         snprintf(p, ETH_GSTRING_LEN,
1620                                  "port.rx_priority_%u_xon_2_xoff", i);
1621                         p += ETH_GSTRING_LEN;
1622                 }
1623                 /* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */
1624                 break;
1625         case ETH_SS_PRIV_FLAGS:
1626                 if (pf->hw.pf_id == 0) {
1627                         for (i = 0; i < I40E_PRIV_FLAGS_GL_STR_LEN; i++) {
1628                                 memcpy(data, i40e_priv_flags_strings_gl[i],
1629                                        ETH_GSTRING_LEN);
1630                                 data += ETH_GSTRING_LEN;
1631                         }
1632                 } else {
1633                         for (i = 0; i < I40E_PRIV_FLAGS_STR_LEN; i++) {
1634                                 memcpy(data, i40e_priv_flags_strings[i],
1635                                        ETH_GSTRING_LEN);
1636                                 data += ETH_GSTRING_LEN;
1637                         }
1638                 }
1639                 break;
1640         default:
1641                 break;
1642         }
1643 }
1644
1645 static int i40e_get_ts_info(struct net_device *dev,
1646                             struct ethtool_ts_info *info)
1647 {
1648         struct i40e_pf *pf = i40e_netdev_to_pf(dev);
1649
1650         /* only report HW timestamping if PTP is enabled */
1651         if (!(pf->flags & I40E_FLAG_PTP))
1652                 return ethtool_op_get_ts_info(dev, info);
1653
1654         info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE |
1655                                 SOF_TIMESTAMPING_RX_SOFTWARE |
1656                                 SOF_TIMESTAMPING_SOFTWARE |
1657                                 SOF_TIMESTAMPING_TX_HARDWARE |
1658                                 SOF_TIMESTAMPING_RX_HARDWARE |
1659                                 SOF_TIMESTAMPING_RAW_HARDWARE;
1660
1661         if (pf->ptp_clock)
1662                 info->phc_index = ptp_clock_index(pf->ptp_clock);
1663         else
1664                 info->phc_index = -1;
1665
1666         info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON);
1667
1668         info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) |
1669                            BIT(HWTSTAMP_FILTER_PTP_V1_L4_EVENT) |
1670                            BIT(HWTSTAMP_FILTER_PTP_V2_EVENT);
1671
1672         return 0;
1673 }
1674
1675 static int i40e_link_test(struct net_device *netdev, u64 *data)
1676 {
1677         struct i40e_netdev_priv *np = netdev_priv(netdev);
1678         struct i40e_pf *pf = np->vsi->back;
1679         i40e_status status;
1680         bool link_up = false;
1681
1682         netif_info(pf, hw, netdev, "link test\n");
1683         status = i40e_get_link_status(&pf->hw, &link_up);
1684         if (status) {
1685                 netif_err(pf, drv, netdev, "link query timed out, please retry test\n");
1686                 *data = 1;
1687                 return *data;
1688         }
1689
1690         if (link_up)
1691                 *data = 0;
1692         else
1693                 *data = 1;
1694
1695         return *data;
1696 }
1697
1698 static int i40e_reg_test(struct net_device *netdev, u64 *data)
1699 {
1700         struct i40e_netdev_priv *np = netdev_priv(netdev);
1701         struct i40e_pf *pf = np->vsi->back;
1702
1703         netif_info(pf, hw, netdev, "register test\n");
1704         *data = i40e_diag_reg_test(&pf->hw);
1705
1706         return *data;
1707 }
1708
1709 static int i40e_eeprom_test(struct net_device *netdev, u64 *data)
1710 {
1711         struct i40e_netdev_priv *np = netdev_priv(netdev);
1712         struct i40e_pf *pf = np->vsi->back;
1713
1714         netif_info(pf, hw, netdev, "eeprom test\n");
1715         *data = i40e_diag_eeprom_test(&pf->hw);
1716
1717         /* forcebly clear the NVM Update state machine */
1718         pf->hw.nvmupd_state = I40E_NVMUPD_STATE_INIT;
1719
1720         return *data;
1721 }
1722
1723 static int i40e_intr_test(struct net_device *netdev, u64 *data)
1724 {
1725         struct i40e_netdev_priv *np = netdev_priv(netdev);
1726         struct i40e_pf *pf = np->vsi->back;
1727         u16 swc_old = pf->sw_int_count;
1728
1729         netif_info(pf, hw, netdev, "interrupt test\n");
1730         wr32(&pf->hw, I40E_PFINT_DYN_CTL0,
1731              (I40E_PFINT_DYN_CTL0_INTENA_MASK |
1732               I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK |
1733               I40E_PFINT_DYN_CTL0_ITR_INDX_MASK |
1734               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_ENA_MASK |
1735               I40E_PFINT_DYN_CTL0_SW_ITR_INDX_MASK));
1736         usleep_range(1000, 2000);
1737         *data = (swc_old == pf->sw_int_count);
1738
1739         return *data;
1740 }
1741
1742 static int i40e_loopback_test(struct net_device *netdev, u64 *data)
1743 {
1744         struct i40e_netdev_priv *np = netdev_priv(netdev);
1745         struct i40e_pf *pf = np->vsi->back;
1746
1747         netif_info(pf, hw, netdev, "loopback test not implemented\n");
1748         *data = 0;
1749
1750         return *data;
1751 }
1752
1753 static inline bool i40e_active_vfs(struct i40e_pf *pf)
1754 {
1755         struct i40e_vf *vfs = pf->vf;
1756         int i;
1757
1758         for (i = 0; i < pf->num_alloc_vfs; i++)
1759                 if (test_bit(I40E_VF_STAT_ACTIVE, &vfs[i].vf_states))
1760                         return true;
1761         return false;
1762 }
1763
1764 static inline bool i40e_active_vmdqs(struct i40e_pf *pf)
1765 {
1766         struct i40e_vsi **vsi = pf->vsi;
1767         int i;
1768
1769         for (i = 0; i < pf->num_alloc_vsi; i++) {
1770                 if (!vsi[i])
1771                         continue;
1772                 if (vsi[i]->type == I40E_VSI_VMDQ2)
1773                         return true;
1774         }
1775
1776         return false;
1777 }
1778
1779 static void i40e_diag_test(struct net_device *netdev,
1780                            struct ethtool_test *eth_test, u64 *data)
1781 {
1782         struct i40e_netdev_priv *np = netdev_priv(netdev);
1783         bool if_running = netif_running(netdev);
1784         struct i40e_pf *pf = np->vsi->back;
1785
1786         if (eth_test->flags == ETH_TEST_FL_OFFLINE) {
1787                 /* Offline tests */
1788                 netif_info(pf, drv, netdev, "offline testing starting\n");
1789
1790                 set_bit(__I40E_TESTING, &pf->state);
1791
1792                 if (i40e_active_vfs(pf) || i40e_active_vmdqs(pf)) {
1793                         dev_warn(&pf->pdev->dev,
1794                                  "Please take active VFs and Netqueues offline and restart the adapter before running NIC diagnostics\n");
1795                         data[I40E_ETH_TEST_REG]         = 1;
1796                         data[I40E_ETH_TEST_EEPROM]      = 1;
1797                         data[I40E_ETH_TEST_INTR]        = 1;
1798                         data[I40E_ETH_TEST_LOOPBACK]    = 1;
1799                         data[I40E_ETH_TEST_LINK]        = 1;
1800                         eth_test->flags |= ETH_TEST_FL_FAILED;
1801                         clear_bit(__I40E_TESTING, &pf->state);
1802                         goto skip_ol_tests;
1803                 }
1804
1805                 /* If the device is online then take it offline */
1806                 if (if_running)
1807                         /* indicate we're in test mode */
1808                         i40e_close(netdev);
1809                 else
1810                         /* This reset does not affect link - if it is
1811                          * changed to a type of reset that does affect
1812                          * link then the following link test would have
1813                          * to be moved to before the reset
1814                          */
1815                         i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
1816
1817                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1818                         eth_test->flags |= ETH_TEST_FL_FAILED;
1819
1820                 if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM]))
1821                         eth_test->flags |= ETH_TEST_FL_FAILED;
1822
1823                 if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR]))
1824                         eth_test->flags |= ETH_TEST_FL_FAILED;
1825
1826                 if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK]))
1827                         eth_test->flags |= ETH_TEST_FL_FAILED;
1828
1829                 /* run reg test last, a reset is required after it */
1830                 if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG]))
1831                         eth_test->flags |= ETH_TEST_FL_FAILED;
1832
1833                 clear_bit(__I40E_TESTING, &pf->state);
1834                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
1835
1836                 if (if_running)
1837                         i40e_open(netdev);
1838         } else {
1839                 /* Online tests */
1840                 netif_info(pf, drv, netdev, "online testing starting\n");
1841
1842                 if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK]))
1843                         eth_test->flags |= ETH_TEST_FL_FAILED;
1844
1845                 /* Offline only tests, not run in online; pass by default */
1846                 data[I40E_ETH_TEST_REG] = 0;
1847                 data[I40E_ETH_TEST_EEPROM] = 0;
1848                 data[I40E_ETH_TEST_INTR] = 0;
1849                 data[I40E_ETH_TEST_LOOPBACK] = 0;
1850         }
1851
1852 skip_ol_tests:
1853
1854         netif_info(pf, drv, netdev, "testing finished\n");
1855 }
1856
1857 static void i40e_get_wol(struct net_device *netdev,
1858                          struct ethtool_wolinfo *wol)
1859 {
1860         struct i40e_netdev_priv *np = netdev_priv(netdev);
1861         struct i40e_pf *pf = np->vsi->back;
1862         struct i40e_hw *hw = &pf->hw;
1863         u16 wol_nvm_bits;
1864
1865         /* NVM bit on means WoL disabled for the port */
1866         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1867         if ((BIT(hw->port) & wol_nvm_bits) || (hw->partition_id != 1)) {
1868                 wol->supported = 0;
1869                 wol->wolopts = 0;
1870         } else {
1871                 wol->supported = WAKE_MAGIC;
1872                 wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0);
1873         }
1874 }
1875
1876 /**
1877  * i40e_set_wol - set the WakeOnLAN configuration
1878  * @netdev: the netdev in question
1879  * @wol: the ethtool WoL setting data
1880  **/
1881 static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
1882 {
1883         struct i40e_netdev_priv *np = netdev_priv(netdev);
1884         struct i40e_pf *pf = np->vsi->back;
1885         struct i40e_vsi *vsi = np->vsi;
1886         struct i40e_hw *hw = &pf->hw;
1887         u16 wol_nvm_bits;
1888
1889         /* WoL not supported if this isn't the controlling PF on the port */
1890         if (hw->partition_id != 1) {
1891                 i40e_partition_setting_complaint(pf);
1892                 return -EOPNOTSUPP;
1893         }
1894
1895         if (vsi != pf->vsi[pf->lan_vsi])
1896                 return -EOPNOTSUPP;
1897
1898         /* NVM bit on means WoL disabled for the port */
1899         i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits);
1900         if (BIT(hw->port) & wol_nvm_bits)
1901                 return -EOPNOTSUPP;
1902
1903         /* only magic packet is supported */
1904         if (wol->wolopts && (wol->wolopts != WAKE_MAGIC))
1905                 return -EOPNOTSUPP;
1906
1907         /* is this a new value? */
1908         if (pf->wol_en != !!wol->wolopts) {
1909                 pf->wol_en = !!wol->wolopts;
1910                 device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en);
1911         }
1912
1913         return 0;
1914 }
1915
1916 static int i40e_set_phys_id(struct net_device *netdev,
1917                             enum ethtool_phys_id_state state)
1918 {
1919         struct i40e_netdev_priv *np = netdev_priv(netdev);
1920         i40e_status ret = 0;
1921         struct i40e_pf *pf = np->vsi->back;
1922         struct i40e_hw *hw = &pf->hw;
1923         int blink_freq = 2;
1924         u16 temp_status;
1925
1926         switch (state) {
1927         case ETHTOOL_ID_ACTIVE:
1928                 if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY)) {
1929                         pf->led_status = i40e_led_get(hw);
1930                 } else {
1931                         i40e_aq_set_phy_debug(hw, I40E_PHY_DEBUG_ALL, NULL);
1932                         ret = i40e_led_get_phy(hw, &temp_status,
1933                                                &pf->phy_led_val);
1934                         pf->led_status = temp_status;
1935                 }
1936                 return blink_freq;
1937         case ETHTOOL_ID_ON:
1938                 if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY))
1939                         i40e_led_set(hw, 0xf, false);
1940                 else
1941                         ret = i40e_led_set_phy(hw, true, pf->led_status, 0);
1942                 break;
1943         case ETHTOOL_ID_OFF:
1944                 if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY))
1945                         i40e_led_set(hw, 0x0, false);
1946                 else
1947                         ret = i40e_led_set_phy(hw, false, pf->led_status, 0);
1948                 break;
1949         case ETHTOOL_ID_INACTIVE:
1950                 if (!(pf->flags & I40E_FLAG_HAVE_10GBASET_PHY)) {
1951                         i40e_led_set(hw, false, pf->led_status);
1952                 } else {
1953                         ret = i40e_led_set_phy(hw, false, pf->led_status,
1954                                                (pf->phy_led_val |
1955                                                I40E_PHY_LED_MODE_ORIG));
1956                         i40e_aq_set_phy_debug(hw, 0, NULL);
1957                 }
1958                 break;
1959         default:
1960                 break;
1961         }
1962                 if (ret)
1963                         return -ENOENT;
1964                 else
1965                         return 0;
1966 }
1967
1968 /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt
1969  * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also
1970  * 125us (8000 interrupts per second) == ITR(62)
1971  */
1972
1973 static int __i40e_get_coalesce(struct net_device *netdev,
1974                                struct ethtool_coalesce *ec,
1975                                int queue)
1976 {
1977         struct i40e_netdev_priv *np = netdev_priv(netdev);
1978         struct i40e_vsi *vsi = np->vsi;
1979
1980         ec->tx_max_coalesced_frames_irq = vsi->work_limit;
1981         ec->rx_max_coalesced_frames_irq = vsi->work_limit;
1982
1983         /* rx and tx usecs has per queue value. If user doesn't specify the queue,
1984          * return queue 0's value to represent.
1985          */
1986         if (queue < 0) {
1987                 queue = 0;
1988         } else if (queue >= vsi->num_queue_pairs) {
1989                 return -EINVAL;
1990         }
1991
1992         if (ITR_IS_DYNAMIC(vsi->rx_rings[queue]->rx_itr_setting))
1993                 ec->use_adaptive_rx_coalesce = 1;
1994
1995         if (ITR_IS_DYNAMIC(vsi->tx_rings[queue]->tx_itr_setting))
1996                 ec->use_adaptive_tx_coalesce = 1;
1997
1998         ec->rx_coalesce_usecs = vsi->rx_rings[queue]->rx_itr_setting & ~I40E_ITR_DYNAMIC;
1999         ec->tx_coalesce_usecs = vsi->tx_rings[queue]->tx_itr_setting & ~I40E_ITR_DYNAMIC;
2000
2001         /* we use the _usecs_high to store/set the interrupt rate limit
2002          * that the hardware supports, that almost but not quite
2003          * fits the original intent of the ethtool variable,
2004          * the rx_coalesce_usecs_high limits total interrupts
2005          * per second from both tx/rx sources.
2006          */
2007         ec->rx_coalesce_usecs_high = vsi->int_rate_limit;
2008         ec->tx_coalesce_usecs_high = vsi->int_rate_limit;
2009
2010         return 0;
2011 }
2012
2013 static int i40e_get_coalesce(struct net_device *netdev,
2014                              struct ethtool_coalesce *ec)
2015 {
2016         return __i40e_get_coalesce(netdev, ec, -1);
2017 }
2018
2019 static int i40e_get_per_queue_coalesce(struct net_device *netdev, u32 queue,
2020                                        struct ethtool_coalesce *ec)
2021 {
2022         return __i40e_get_coalesce(netdev, ec, queue);
2023 }
2024
2025 static void i40e_set_itr_per_queue(struct i40e_vsi *vsi,
2026                                    struct ethtool_coalesce *ec,
2027                                    int queue)
2028 {
2029         struct i40e_pf *pf = vsi->back;
2030         struct i40e_hw *hw = &pf->hw;
2031         struct i40e_q_vector *q_vector;
2032         u16 vector, intrl;
2033
2034         intrl = INTRL_USEC_TO_REG(vsi->int_rate_limit);
2035
2036         vsi->rx_rings[queue]->rx_itr_setting = ec->rx_coalesce_usecs;
2037         vsi->tx_rings[queue]->tx_itr_setting = ec->tx_coalesce_usecs;
2038
2039         if (ec->use_adaptive_rx_coalesce)
2040                 vsi->rx_rings[queue]->rx_itr_setting |= I40E_ITR_DYNAMIC;
2041         else
2042                 vsi->rx_rings[queue]->rx_itr_setting &= ~I40E_ITR_DYNAMIC;
2043
2044         if (ec->use_adaptive_tx_coalesce)
2045                 vsi->tx_rings[queue]->tx_itr_setting |= I40E_ITR_DYNAMIC;
2046         else
2047                 vsi->tx_rings[queue]->tx_itr_setting &= ~I40E_ITR_DYNAMIC;
2048
2049         q_vector = vsi->rx_rings[queue]->q_vector;
2050         q_vector->rx.itr = ITR_TO_REG(vsi->rx_rings[queue]->rx_itr_setting);
2051         vector = vsi->base_vector + q_vector->v_idx;
2052         wr32(hw, I40E_PFINT_ITRN(I40E_RX_ITR, vector - 1), q_vector->rx.itr);
2053
2054         q_vector = vsi->tx_rings[queue]->q_vector;
2055         q_vector->tx.itr = ITR_TO_REG(vsi->tx_rings[queue]->tx_itr_setting);
2056         vector = vsi->base_vector + q_vector->v_idx;
2057         wr32(hw, I40E_PFINT_ITRN(I40E_TX_ITR, vector - 1), q_vector->tx.itr);
2058
2059         wr32(hw, I40E_PFINT_RATEN(vector - 1), intrl);
2060         i40e_flush(hw);
2061 }
2062
2063 static int __i40e_set_coalesce(struct net_device *netdev,
2064                                struct ethtool_coalesce *ec,
2065                                int queue)
2066 {
2067         struct i40e_netdev_priv *np = netdev_priv(netdev);
2068         struct i40e_vsi *vsi = np->vsi;
2069         struct i40e_pf *pf = vsi->back;
2070         int i;
2071
2072         if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq)
2073                 vsi->work_limit = ec->tx_max_coalesced_frames_irq;
2074
2075         /* tx_coalesce_usecs_high is ignored, use rx-usecs-high instead */
2076         if (ec->tx_coalesce_usecs_high != vsi->int_rate_limit) {
2077                 netif_info(pf, drv, netdev, "tx-usecs-high is not used, please program rx-usecs-high\n");
2078                 return -EINVAL;
2079         }
2080
2081         if (ec->rx_coalesce_usecs_high >= INTRL_REG_TO_USEC(I40E_MAX_INTRL)) {
2082                 netif_info(pf, drv, netdev, "Invalid value, rx-usecs-high range is 0-235\n");
2083                 return -EINVAL;
2084         }
2085
2086         if (ec->rx_coalesce_usecs == 0) {
2087                 if (ec->use_adaptive_rx_coalesce)
2088                         netif_info(pf, drv, netdev, "rx-usecs=0, need to disable adaptive-rx for a complete disable\n");
2089         } else if ((ec->rx_coalesce_usecs < (I40E_MIN_ITR << 1)) ||
2090                    (ec->rx_coalesce_usecs > (I40E_MAX_ITR << 1))) {
2091                         netif_info(pf, drv, netdev, "Invalid value, rx-usecs range is 0-8160\n");
2092                         return -EINVAL;
2093         }
2094
2095         vsi->int_rate_limit = ec->rx_coalesce_usecs_high;
2096
2097         if (ec->tx_coalesce_usecs == 0) {
2098                 if (ec->use_adaptive_tx_coalesce)
2099                         netif_info(pf, drv, netdev, "tx-usecs=0, need to disable adaptive-tx for a complete disable\n");
2100         } else if ((ec->tx_coalesce_usecs < (I40E_MIN_ITR << 1)) ||
2101                    (ec->tx_coalesce_usecs > (I40E_MAX_ITR << 1))) {
2102                         netif_info(pf, drv, netdev, "Invalid value, tx-usecs range is 0-8160\n");
2103                         return -EINVAL;
2104         }
2105
2106         /* rx and tx usecs has per queue value. If user doesn't specify the queue,
2107          * apply to all queues.
2108          */
2109         if (queue < 0) {
2110                 for (i = 0; i < vsi->num_queue_pairs; i++)
2111                         i40e_set_itr_per_queue(vsi, ec, i);
2112         } else if (queue < vsi->num_queue_pairs) {
2113                 i40e_set_itr_per_queue(vsi, ec, queue);
2114         } else {
2115                 netif_info(pf, drv, netdev, "Invalid queue value, queue range is 0 - %d\n",
2116                            vsi->num_queue_pairs - 1);
2117                 return -EINVAL;
2118         }
2119
2120         return 0;
2121 }
2122
2123 static int i40e_set_coalesce(struct net_device *netdev,
2124                              struct ethtool_coalesce *ec)
2125 {
2126         return __i40e_set_coalesce(netdev, ec, -1);
2127 }
2128
2129 static int i40e_set_per_queue_coalesce(struct net_device *netdev, u32 queue,
2130                                        struct ethtool_coalesce *ec)
2131 {
2132         return __i40e_set_coalesce(netdev, ec, queue);
2133 }
2134
2135 /**
2136  * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type
2137  * @pf: pointer to the physical function struct
2138  * @cmd: ethtool rxnfc command
2139  *
2140  * Returns Success if the flow is supported, else Invalid Input.
2141  **/
2142 static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd)
2143 {
2144         cmd->data = 0;
2145
2146         if (pf->vsi[pf->lan_vsi]->rxnfc.data != 0) {
2147                 cmd->data = pf->vsi[pf->lan_vsi]->rxnfc.data;
2148                 cmd->flow_type = pf->vsi[pf->lan_vsi]->rxnfc.flow_type;
2149                 return 0;
2150         }
2151         /* Report default options for RSS on i40e */
2152         switch (cmd->flow_type) {
2153         case TCP_V4_FLOW:
2154         case UDP_V4_FLOW:
2155                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2156         /* fall through to add IP fields */
2157         case SCTP_V4_FLOW:
2158         case AH_ESP_V4_FLOW:
2159         case AH_V4_FLOW:
2160         case ESP_V4_FLOW:
2161         case IPV4_FLOW:
2162                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
2163                 break;
2164         case TCP_V6_FLOW:
2165         case UDP_V6_FLOW:
2166                 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;
2167         /* fall through to add IP fields */
2168         case SCTP_V6_FLOW:
2169         case AH_ESP_V6_FLOW:
2170         case AH_V6_FLOW:
2171         case ESP_V6_FLOW:
2172         case IPV6_FLOW:
2173                 cmd->data |= RXH_IP_SRC | RXH_IP_DST;
2174                 break;
2175         default:
2176                 return -EINVAL;
2177         }
2178
2179         return 0;
2180 }
2181
2182 /**
2183  * i40e_get_ethtool_fdir_all - Populates the rule count of a command
2184  * @pf: Pointer to the physical function struct
2185  * @cmd: The command to get or set Rx flow classification rules
2186  * @rule_locs: Array of used rule locations
2187  *
2188  * This function populates both the total and actual rule count of
2189  * the ethtool flow classification command
2190  *
2191  * Returns 0 on success or -EMSGSIZE if entry not found
2192  **/
2193 static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf,
2194                                      struct ethtool_rxnfc *cmd,
2195                                      u32 *rule_locs)
2196 {
2197         struct i40e_fdir_filter *rule;
2198         struct hlist_node *node2;
2199         int cnt = 0;
2200
2201         /* report total rule count */
2202         cmd->data = i40e_get_fd_cnt_all(pf);
2203
2204         hlist_for_each_entry_safe(rule, node2,
2205                                   &pf->fdir_filter_list, fdir_node) {
2206                 if (cnt == cmd->rule_cnt)
2207                         return -EMSGSIZE;
2208
2209                 rule_locs[cnt] = rule->fd_id;
2210                 cnt++;
2211         }
2212
2213         cmd->rule_cnt = cnt;
2214
2215         return 0;
2216 }
2217
2218 /**
2219  * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow
2220  * @pf: Pointer to the physical function struct
2221  * @cmd: The command to get or set Rx flow classification rules
2222  *
2223  * This function looks up a filter based on the Rx flow classification
2224  * command and fills the flow spec info for it if found
2225  *
2226  * Returns 0 on success or -EINVAL if filter not found
2227  **/
2228 static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf,
2229                                        struct ethtool_rxnfc *cmd)
2230 {
2231         struct ethtool_rx_flow_spec *fsp =
2232                         (struct ethtool_rx_flow_spec *)&cmd->fs;
2233         struct i40e_fdir_filter *rule = NULL;
2234         struct hlist_node *node2;
2235
2236         hlist_for_each_entry_safe(rule, node2,
2237                                   &pf->fdir_filter_list, fdir_node) {
2238                 if (fsp->location <= rule->fd_id)
2239                         break;
2240         }
2241
2242         if (!rule || fsp->location != rule->fd_id)
2243                 return -EINVAL;
2244
2245         fsp->flow_type = rule->flow_type;
2246         if (fsp->flow_type == IP_USER_FLOW) {
2247                 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
2248                 fsp->h_u.usr_ip4_spec.proto = 0;
2249                 fsp->m_u.usr_ip4_spec.proto = 0;
2250         }
2251
2252         /* Reverse the src and dest notion, since the HW views them from
2253          * Tx perspective where as the user expects it from Rx filter view.
2254          */
2255         fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port;
2256         fsp->h_u.tcp_ip4_spec.pdst = rule->src_port;
2257         fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip[0];
2258         fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip[0];
2259
2260         if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET)
2261                 fsp->ring_cookie = RX_CLS_FLOW_DISC;
2262         else
2263                 fsp->ring_cookie = rule->q_index;
2264
2265         if (rule->dest_vsi != pf->vsi[pf->lan_vsi]->id) {
2266                 struct i40e_vsi *vsi;
2267
2268                 vsi = i40e_find_vsi_from_id(pf, rule->dest_vsi);
2269                 if (vsi && vsi->type == I40E_VSI_SRIOV) {
2270                         fsp->h_ext.data[1] = htonl(vsi->vf_id);
2271                         fsp->m_ext.data[1] = htonl(0x1);
2272                 }
2273         }
2274
2275         return 0;
2276 }
2277
2278 /**
2279  * i40e_get_rxnfc - command to get RX flow classification rules
2280  * @netdev: network interface device structure
2281  * @cmd: ethtool rxnfc command
2282  *
2283  * Returns Success if the command is supported.
2284  **/
2285 static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd,
2286                           u32 *rule_locs)
2287 {
2288         struct i40e_netdev_priv *np = netdev_priv(netdev);
2289         struct i40e_vsi *vsi = np->vsi;
2290         struct i40e_pf *pf = vsi->back;
2291         int ret = -EOPNOTSUPP;
2292
2293         switch (cmd->cmd) {
2294         case ETHTOOL_GRXRINGS:
2295                 cmd->data = vsi->num_queue_pairs;
2296                 ret = 0;
2297                 break;
2298         case ETHTOOL_GRXFH:
2299                 ret = i40e_get_rss_hash_opts(pf, cmd);
2300                 break;
2301         case ETHTOOL_GRXCLSRLCNT:
2302                 cmd->rule_cnt = pf->fdir_pf_active_filters;
2303                 /* report total rule count */
2304                 cmd->data = i40e_get_fd_cnt_all(pf);
2305                 ret = 0;
2306                 break;
2307         case ETHTOOL_GRXCLSRULE:
2308                 ret = i40e_get_ethtool_fdir_entry(pf, cmd);
2309                 break;
2310         case ETHTOOL_GRXCLSRLALL:
2311                 ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs);
2312                 break;
2313         default:
2314                 break;
2315         }
2316
2317         return ret;
2318 }
2319
2320 /**
2321  * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash
2322  * @pf: pointer to the physical function struct
2323  * @cmd: ethtool rxnfc command
2324  *
2325  * Returns Success if the flow input set is supported.
2326  **/
2327 static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc)
2328 {
2329         struct i40e_hw *hw = &pf->hw;
2330         u64 hena = (u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(0)) |
2331                    ((u64)i40e_read_rx_ctl(hw, I40E_PFQF_HENA(1)) << 32);
2332
2333         /* RSS does not support anything other than hashing
2334          * to queues on src and dst IPs and ports
2335          */
2336         if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |
2337                           RXH_L4_B_0_1 | RXH_L4_B_2_3))
2338                 return -EINVAL;
2339
2340         /* We need at least the IP SRC and DEST fields for hashing */
2341         if (!(nfc->data & RXH_IP_SRC) ||
2342             !(nfc->data & RXH_IP_DST))
2343                 return -EINVAL;
2344
2345         switch (nfc->flow_type) {
2346         case TCP_V4_FLOW:
2347                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2348                 case 0:
2349                         return -EINVAL;
2350                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2351                         if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2352                                 hena |=
2353                            BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP_SYN_NO_ACK);
2354
2355                         hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_TCP);
2356                         break;
2357                 default:
2358                         return -EINVAL;
2359                 }
2360                 break;
2361         case TCP_V6_FLOW:
2362                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2363                 case 0:
2364                         return -EINVAL;
2365                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2366                         if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2367                                 hena |=
2368                            BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP_SYN_NO_ACK);
2369
2370                         hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_TCP);
2371                         break;
2372                 default:
2373                         return -EINVAL;
2374                 }
2375                 break;
2376         case UDP_V4_FLOW:
2377                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2378                 case 0:
2379                         return -EINVAL;
2380                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2381                         if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2382                                 hena |=
2383                             BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV4_UDP) |
2384                             BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV4_UDP);
2385
2386                         hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_UDP) |
2387                                  BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4));
2388                         break;
2389                 default:
2390                         return -EINVAL;
2391                 }
2392                 break;
2393         case UDP_V6_FLOW:
2394                 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {
2395                 case 0:
2396                         return -EINVAL;
2397                 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):
2398                         if (pf->flags & I40E_FLAG_MULTIPLE_TCP_UDP_RSS_PCTYPE)
2399                                 hena |=
2400                             BIT_ULL(I40E_FILTER_PCTYPE_NONF_UNICAST_IPV6_UDP) |
2401                             BIT_ULL(I40E_FILTER_PCTYPE_NONF_MULTICAST_IPV6_UDP);
2402
2403                         hena |= (BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_UDP) |
2404                                  BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6));
2405                         break;
2406                 default:
2407                         return -EINVAL;
2408                 }
2409                 break;
2410         case AH_ESP_V4_FLOW:
2411         case AH_V4_FLOW:
2412         case ESP_V4_FLOW:
2413         case SCTP_V4_FLOW:
2414                 if ((nfc->data & RXH_L4_B_0_1) ||
2415                     (nfc->data & RXH_L4_B_2_3))
2416                         return -EINVAL;
2417                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER);
2418                 break;
2419         case AH_ESP_V6_FLOW:
2420         case AH_V6_FLOW:
2421         case ESP_V6_FLOW:
2422         case SCTP_V6_FLOW:
2423                 if ((nfc->data & RXH_L4_B_0_1) ||
2424                     (nfc->data & RXH_L4_B_2_3))
2425                         return -EINVAL;
2426                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER);
2427                 break;
2428         case IPV4_FLOW:
2429                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) |
2430                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV4);
2431                 break;
2432         case IPV6_FLOW:
2433                 hena |= BIT_ULL(I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) |
2434                         BIT_ULL(I40E_FILTER_PCTYPE_FRAG_IPV6);
2435                 break;
2436         default:
2437                 return -EINVAL;
2438         }
2439
2440         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(0), (u32)hena);
2441         i40e_write_rx_ctl(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32));
2442         i40e_flush(hw);
2443
2444         /* Save setting for future output/update */
2445         pf->vsi[pf->lan_vsi]->rxnfc = *nfc;
2446
2447         return 0;
2448 }
2449
2450 /**
2451  * i40e_match_fdir_input_set - Match a new filter against an existing one
2452  * @rule: The filter already added
2453  * @input: The new filter to comapre against
2454  *
2455  * Returns true if the two input set match
2456  **/
2457 static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule,
2458                                       struct i40e_fdir_filter *input)
2459 {
2460         if ((rule->dst_ip[0] != input->dst_ip[0]) ||
2461             (rule->src_ip[0] != input->src_ip[0]) ||
2462             (rule->dst_port != input->dst_port) ||
2463             (rule->src_port != input->src_port))
2464                 return false;
2465         return true;
2466 }
2467
2468 /**
2469  * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry
2470  * @vsi: Pointer to the targeted VSI
2471  * @input: The filter to update or NULL to indicate deletion
2472  * @sw_idx: Software index to the filter
2473  * @cmd: The command to get or set Rx flow classification rules
2474  *
2475  * This function updates (or deletes) a Flow Director entry from
2476  * the hlist of the corresponding PF
2477  *
2478  * Returns 0 on success
2479  **/
2480 static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi,
2481                                           struct i40e_fdir_filter *input,
2482                                           u16 sw_idx,
2483                                           struct ethtool_rxnfc *cmd)
2484 {
2485         struct i40e_fdir_filter *rule, *parent;
2486         struct i40e_pf *pf = vsi->back;
2487         struct hlist_node *node2;
2488         int err = -EINVAL;
2489
2490         parent = NULL;
2491         rule = NULL;
2492
2493         hlist_for_each_entry_safe(rule, node2,
2494                                   &pf->fdir_filter_list, fdir_node) {
2495                 /* hash found, or no matching entry */
2496                 if (rule->fd_id >= sw_idx)
2497                         break;
2498                 parent = rule;
2499         }
2500
2501         /* if there is an old rule occupying our place remove it */
2502         if (rule && (rule->fd_id == sw_idx)) {
2503                 if (input && !i40e_match_fdir_input_set(rule, input))
2504                         err = i40e_add_del_fdir(vsi, rule, false);
2505                 else if (!input)
2506                         err = i40e_add_del_fdir(vsi, rule, false);
2507                 hlist_del(&rule->fdir_node);
2508                 kfree(rule);
2509                 pf->fdir_pf_active_filters--;
2510         }
2511
2512         /* If no input this was a delete, err should be 0 if a rule was
2513          * successfully found and removed from the list else -EINVAL
2514          */
2515         if (!input)
2516                 return err;
2517
2518         /* initialize node and set software index */
2519         INIT_HLIST_NODE(&input->fdir_node);
2520
2521         /* add filter to the list */
2522         if (parent)
2523                 hlist_add_behind(&input->fdir_node, &parent->fdir_node);
2524         else
2525                 hlist_add_head(&input->fdir_node,
2526                                &pf->fdir_filter_list);
2527
2528         /* update counts */
2529         pf->fdir_pf_active_filters++;
2530
2531         return 0;
2532 }
2533
2534 /**
2535  * i40e_del_fdir_entry - Deletes a Flow Director filter entry
2536  * @vsi: Pointer to the targeted VSI
2537  * @cmd: The command to get or set Rx flow classification rules
2538  *
2539  * The function removes a Flow Director filter entry from the
2540  * hlist of the corresponding PF
2541  *
2542  * Returns 0 on success
2543  */
2544 static int i40e_del_fdir_entry(struct i40e_vsi *vsi,
2545                                struct ethtool_rxnfc *cmd)
2546 {
2547         struct ethtool_rx_flow_spec *fsp =
2548                 (struct ethtool_rx_flow_spec *)&cmd->fs;
2549         struct i40e_pf *pf = vsi->back;
2550         int ret = 0;
2551
2552         if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2553             test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2554                 return -EBUSY;
2555
2556         if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2557                 return -EBUSY;
2558
2559         ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd);
2560
2561         i40e_fdir_check_and_reenable(pf);
2562         return ret;
2563 }
2564
2565 /**
2566  * i40e_add_fdir_ethtool - Add/Remove Flow Director filters
2567  * @vsi: pointer to the targeted VSI
2568  * @cmd: command to get or set RX flow classification rules
2569  *
2570  * Add Flow Director filters for a specific flow spec based on their
2571  * protocol.  Returns 0 if the filters were successfully added.
2572  **/
2573 static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi,
2574                                  struct ethtool_rxnfc *cmd)
2575 {
2576         struct ethtool_rx_flow_spec *fsp;
2577         struct i40e_fdir_filter *input;
2578         struct i40e_pf *pf;
2579         int ret = -EINVAL;
2580         u16 vf_id;
2581
2582         if (!vsi)
2583                 return -EINVAL;
2584         pf = vsi->back;
2585
2586         if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED))
2587                 return -EOPNOTSUPP;
2588
2589         if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED)
2590                 return -ENOSPC;
2591
2592         if (test_bit(__I40E_RESET_RECOVERY_PENDING, &pf->state) ||
2593             test_bit(__I40E_RESET_INTR_RECEIVED, &pf->state))
2594                 return -EBUSY;
2595
2596         if (test_bit(__I40E_FD_FLUSH_REQUESTED, &pf->state))
2597                 return -EBUSY;
2598
2599         fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
2600
2601         if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort +
2602                               pf->hw.func_caps.fd_filters_guaranteed)) {
2603                 return -EINVAL;
2604         }
2605
2606         if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) &&
2607             (fsp->ring_cookie >= vsi->num_queue_pairs))
2608                 return -EINVAL;
2609
2610         input = kzalloc(sizeof(*input), GFP_KERNEL);
2611
2612         if (!input)
2613                 return -ENOMEM;
2614
2615         input->fd_id = fsp->location;
2616
2617         if (fsp->ring_cookie == RX_CLS_FLOW_DISC)
2618                 input->dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET;
2619         else
2620                 input->dest_ctl =
2621                              I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX;
2622
2623         input->q_index = fsp->ring_cookie;
2624         input->flex_off = 0;
2625         input->pctype = 0;
2626         input->dest_vsi = vsi->id;
2627         input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID;
2628         input->cnt_index  = I40E_FD_SB_STAT_IDX(pf->hw.pf_id);
2629         input->flow_type = fsp->flow_type;
2630         input->ip4_proto = fsp->h_u.usr_ip4_spec.proto;
2631
2632         /* Reverse the src and dest notion, since the HW expects them to be from
2633          * Tx perspective where as the input from user is from Rx filter view.
2634          */
2635         input->dst_port = fsp->h_u.tcp_ip4_spec.psrc;
2636         input->src_port = fsp->h_u.tcp_ip4_spec.pdst;
2637         input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src;
2638         input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst;
2639
2640         if (ntohl(fsp->m_ext.data[1])) {
2641                 vf_id = ntohl(fsp->h_ext.data[1]);
2642                 if (vf_id >= pf->num_alloc_vfs) {
2643                         netif_info(pf, drv, vsi->netdev,
2644                                    "Invalid VF id %d\n", vf_id);
2645                         goto free_input;
2646                 }
2647                 /* Find vsi id from vf id and override dest vsi */
2648                 input->dest_vsi = pf->vf[vf_id].lan_vsi_id;
2649                 if (input->q_index >= pf->vf[vf_id].num_queue_pairs) {
2650                         netif_info(pf, drv, vsi->netdev,
2651                                    "Invalid queue id %d for VF %d\n",
2652                                    input->q_index, vf_id);
2653                         goto free_input;
2654                 }
2655         }
2656
2657         ret = i40e_add_del_fdir(vsi, input, true);
2658 free_input:
2659         if (ret)
2660                 kfree(input);
2661         else
2662                 i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL);
2663
2664         return ret;
2665 }
2666
2667 /**
2668  * i40e_set_rxnfc - command to set RX flow classification rules
2669  * @netdev: network interface device structure
2670  * @cmd: ethtool rxnfc command
2671  *
2672  * Returns Success if the command is supported.
2673  **/
2674 static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd)
2675 {
2676         struct i40e_netdev_priv *np = netdev_priv(netdev);
2677         struct i40e_vsi *vsi = np->vsi;
2678         struct i40e_pf *pf = vsi->back;
2679         int ret = -EOPNOTSUPP;
2680
2681         switch (cmd->cmd) {
2682         case ETHTOOL_SRXFH:
2683                 ret = i40e_set_rss_hash_opt(pf, cmd);
2684                 break;
2685         case ETHTOOL_SRXCLSRLINS:
2686                 ret = i40e_add_fdir_ethtool(vsi, cmd);
2687                 break;
2688         case ETHTOOL_SRXCLSRLDEL:
2689                 ret = i40e_del_fdir_entry(vsi, cmd);
2690                 break;
2691         default:
2692                 break;
2693         }
2694
2695         return ret;
2696 }
2697
2698 /**
2699  * i40e_max_channels - get Max number of combined channels supported
2700  * @vsi: vsi pointer
2701  **/
2702 static unsigned int i40e_max_channels(struct i40e_vsi *vsi)
2703 {
2704         /* TODO: This code assumes DCB and FD is disabled for now. */
2705         return vsi->alloc_queue_pairs;
2706 }
2707
2708 /**
2709  * i40e_get_channels - Get the current channels enabled and max supported etc.
2710  * @netdev: network interface device structure
2711  * @ch: ethtool channels structure
2712  *
2713  * We don't support separate tx and rx queues as channels. The other count
2714  * represents how many queues are being used for control. max_combined counts
2715  * how many queue pairs we can support. They may not be mapped 1 to 1 with
2716  * q_vectors since we support a lot more queue pairs than q_vectors.
2717  **/
2718 static void i40e_get_channels(struct net_device *dev,
2719                                struct ethtool_channels *ch)
2720 {
2721         struct i40e_netdev_priv *np = netdev_priv(dev);
2722         struct i40e_vsi *vsi = np->vsi;
2723         struct i40e_pf *pf = vsi->back;
2724
2725         /* report maximum channels */
2726         ch->max_combined = i40e_max_channels(vsi);
2727
2728         /* report info for other vector */
2729         ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0;
2730         ch->max_other = ch->other_count;
2731
2732         /* Note: This code assumes DCB is disabled for now. */
2733         ch->combined_count = vsi->num_queue_pairs;
2734 }
2735
2736 /**
2737  * i40e_set_channels - Set the new channels count.
2738  * @netdev: network interface device structure
2739  * @ch: ethtool channels structure
2740  *
2741  * The new channels count may not be the same as requested by the user
2742  * since it gets rounded down to a power of 2 value.
2743  **/
2744 static int i40e_set_channels(struct net_device *dev,
2745                               struct ethtool_channels *ch)
2746 {
2747         struct i40e_netdev_priv *np = netdev_priv(dev);
2748         unsigned int count = ch->combined_count;
2749         struct i40e_vsi *vsi = np->vsi;
2750         struct i40e_pf *pf = vsi->back;
2751         int new_count;
2752
2753         /* We do not support setting channels for any other VSI at present */
2754         if (vsi->type != I40E_VSI_MAIN)
2755                 return -EINVAL;
2756
2757         /* verify they are not requesting separate vectors */
2758         if (!count || ch->rx_count || ch->tx_count)
2759                 return -EINVAL;
2760
2761         /* verify other_count has not changed */
2762         if (ch->other_count != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0))
2763                 return -EINVAL;
2764
2765         /* verify the number of channels does not exceed hardware limits */
2766         if (count > i40e_max_channels(vsi))
2767                 return -EINVAL;
2768
2769         /* update feature limits from largest to smallest supported values */
2770         /* TODO: Flow director limit, DCB etc */
2771
2772         /* use rss_reconfig to rebuild with new queue count and update traffic
2773          * class queue mapping
2774          */
2775         new_count = i40e_reconfig_rss_queues(pf, count);
2776         if (new_count > 0)
2777                 return 0;
2778         else
2779                 return -EINVAL;
2780 }
2781
2782 /**
2783  * i40e_get_rxfh_key_size - get the RSS hash key size
2784  * @netdev: network interface device structure
2785  *
2786  * Returns the table size.
2787  **/
2788 static u32 i40e_get_rxfh_key_size(struct net_device *netdev)
2789 {
2790         return I40E_HKEY_ARRAY_SIZE;
2791 }
2792
2793 /**
2794  * i40e_get_rxfh_indir_size - get the rx flow hash indirection table size
2795  * @netdev: network interface device structure
2796  *
2797  * Returns the table size.
2798  **/
2799 static u32 i40e_get_rxfh_indir_size(struct net_device *netdev)
2800 {
2801         return I40E_HLUT_ARRAY_SIZE;
2802 }
2803
2804 static int i40e_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key,
2805                          u8 *hfunc)
2806 {
2807         struct i40e_netdev_priv *np = netdev_priv(netdev);
2808         struct i40e_vsi *vsi = np->vsi;
2809         u8 *lut, *seed = NULL;
2810         int ret;
2811         u16 i;
2812
2813         if (hfunc)
2814                 *hfunc = ETH_RSS_HASH_TOP;
2815
2816         if (!indir)
2817                 return 0;
2818
2819         seed = key;
2820         lut = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
2821         if (!lut)
2822                 return -ENOMEM;
2823         ret = i40e_get_rss(vsi, seed, lut, I40E_HLUT_ARRAY_SIZE);
2824         if (ret)
2825                 goto out;
2826         for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
2827                 indir[i] = (u32)(lut[i]);
2828
2829 out:
2830         kfree(lut);
2831
2832         return ret;
2833 }
2834
2835 /**
2836  * i40e_set_rxfh - set the rx flow hash indirection table
2837  * @netdev: network interface device structure
2838  * @indir: indirection table
2839  * @key: hash key
2840  *
2841  * Returns -EINVAL if the table specifies an invalid queue id, otherwise
2842  * returns 0 after programming the table.
2843  **/
2844 static int i40e_set_rxfh(struct net_device *netdev, const u32 *indir,
2845                          const u8 *key, const u8 hfunc)
2846 {
2847         struct i40e_netdev_priv *np = netdev_priv(netdev);
2848         struct i40e_vsi *vsi = np->vsi;
2849         u8 *seed = NULL;
2850         u16 i;
2851
2852         if (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)
2853                 return -EOPNOTSUPP;
2854
2855         if (!indir)
2856                 return 0;
2857
2858         if (key) {
2859                 if (!vsi->rss_hkey_user) {
2860                         vsi->rss_hkey_user = kzalloc(I40E_HKEY_ARRAY_SIZE,
2861                                                      GFP_KERNEL);
2862                         if (!vsi->rss_hkey_user)
2863                                 return -ENOMEM;
2864                 }
2865                 memcpy(vsi->rss_hkey_user, key, I40E_HKEY_ARRAY_SIZE);
2866                 seed = vsi->rss_hkey_user;
2867         }
2868         if (!vsi->rss_lut_user) {
2869                 vsi->rss_lut_user = kzalloc(I40E_HLUT_ARRAY_SIZE, GFP_KERNEL);
2870                 if (!vsi->rss_lut_user)
2871                         return -ENOMEM;
2872         }
2873
2874         /* Each 32 bits pointed by 'indir' is stored with a lut entry */
2875         for (i = 0; i < I40E_HLUT_ARRAY_SIZE; i++)
2876                 vsi->rss_lut_user[i] = (u8)(indir[i]);
2877
2878         return i40e_config_rss(vsi, seed, vsi->rss_lut_user,
2879                                I40E_HLUT_ARRAY_SIZE);
2880 }
2881
2882 /**
2883  * i40e_get_priv_flags - report device private flags
2884  * @dev: network interface device structure
2885  *
2886  * The get string set count and the string set should be matched for each
2887  * flag returned.  Add new strings for each flag to the i40e_priv_flags_strings
2888  * array.
2889  *
2890  * Returns a u32 bitmap of flags.
2891  **/
2892 static u32 i40e_get_priv_flags(struct net_device *dev)
2893 {
2894         struct i40e_netdev_priv *np = netdev_priv(dev);
2895         struct i40e_vsi *vsi = np->vsi;
2896         struct i40e_pf *pf = vsi->back;
2897         u32 ret_flags = 0;
2898
2899         ret_flags |= pf->flags & I40E_FLAG_LINK_POLLING_ENABLED ?
2900                 I40E_PRIV_FLAGS_LINKPOLL_FLAG : 0;
2901         ret_flags |= pf->flags & I40E_FLAG_FD_ATR_ENABLED ?
2902                 I40E_PRIV_FLAGS_FD_ATR : 0;
2903         ret_flags |= pf->flags & I40E_FLAG_VEB_STATS_ENABLED ?
2904                 I40E_PRIV_FLAGS_VEB_STATS : 0;
2905         ret_flags |= pf->auto_disable_flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE ?
2906                 0 : I40E_PRIV_FLAGS_HW_ATR_EVICT;
2907         if (pf->hw.pf_id == 0) {
2908                 ret_flags |= pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT ?
2909                         I40E_PRIV_FLAGS_TRUE_PROMISC_SUPPORT : 0;
2910         }
2911
2912         return ret_flags;
2913 }
2914
2915 /**
2916  * i40e_set_priv_flags - set private flags
2917  * @dev: network interface device structure
2918  * @flags: bit flags to be set
2919  **/
2920 static int i40e_set_priv_flags(struct net_device *dev, u32 flags)
2921 {
2922         struct i40e_netdev_priv *np = netdev_priv(dev);
2923         struct i40e_vsi *vsi = np->vsi;
2924         struct i40e_pf *pf = vsi->back;
2925         u16 sw_flags = 0, valid_flags = 0;
2926         bool reset_required = false;
2927         bool promisc_change = false;
2928         int ret;
2929
2930         /* NOTE: MFP is not settable */
2931
2932         if (flags & I40E_PRIV_FLAGS_LINKPOLL_FLAG)
2933                 pf->flags |= I40E_FLAG_LINK_POLLING_ENABLED;
2934         else
2935                 pf->flags &= ~I40E_FLAG_LINK_POLLING_ENABLED;
2936
2937         /* allow the user to control the state of the Flow
2938          * Director ATR (Application Targeted Routing) feature
2939          * of the driver
2940          */
2941         if (flags & I40E_PRIV_FLAGS_FD_ATR) {
2942                 pf->flags |= I40E_FLAG_FD_ATR_ENABLED;
2943         } else {
2944                 pf->flags &= ~I40E_FLAG_FD_ATR_ENABLED;
2945                 pf->auto_disable_flags |= I40E_FLAG_FD_ATR_ENABLED;
2946         }
2947
2948         if ((flags & I40E_PRIV_FLAGS_VEB_STATS) &&
2949             !(pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
2950                 pf->flags |= I40E_FLAG_VEB_STATS_ENABLED;
2951                 reset_required = true;
2952         } else if (!(flags & I40E_PRIV_FLAGS_VEB_STATS) &&
2953                    (pf->flags & I40E_FLAG_VEB_STATS_ENABLED)) {
2954                 pf->flags &= ~I40E_FLAG_VEB_STATS_ENABLED;
2955                 reset_required = true;
2956         }
2957
2958         if (pf->hw.pf_id == 0) {
2959                 if ((flags & I40E_PRIV_FLAGS_TRUE_PROMISC_SUPPORT) &&
2960                     !(pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) {
2961                         pf->flags |= I40E_FLAG_TRUE_PROMISC_SUPPORT;
2962                         promisc_change = true;
2963                 } else if (!(flags & I40E_PRIV_FLAGS_TRUE_PROMISC_SUPPORT) &&
2964                            (pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT)) {
2965                         pf->flags &= ~I40E_FLAG_TRUE_PROMISC_SUPPORT;
2966                         promisc_change = true;
2967                 }
2968         }
2969         if (promisc_change) {
2970                 if (!(pf->flags & I40E_FLAG_TRUE_PROMISC_SUPPORT))
2971                         sw_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
2972                 valid_flags = I40E_AQ_SET_SWITCH_CFG_PROMISC;
2973                 ret = i40e_aq_set_switch_config(&pf->hw, sw_flags, valid_flags,
2974                                                 NULL);
2975                 if (ret && pf->hw.aq.asq_last_status != I40E_AQ_RC_ESRCH) {
2976                         dev_info(&pf->pdev->dev,
2977                                  "couldn't set switch config bits, err %s aq_err %s\n",
2978                                  i40e_stat_str(&pf->hw, ret),
2979                                  i40e_aq_str(&pf->hw,
2980                                              pf->hw.aq.asq_last_status));
2981                         /* not a fatal problem, just keep going */
2982                 }
2983         }
2984
2985         if ((flags & I40E_PRIV_FLAGS_HW_ATR_EVICT) &&
2986             (pf->flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE))
2987                 pf->auto_disable_flags &= ~I40E_FLAG_HW_ATR_EVICT_CAPABLE;
2988         else
2989                 pf->auto_disable_flags |= I40E_FLAG_HW_ATR_EVICT_CAPABLE;
2990
2991         /* if needed, issue reset to cause things to take effect */
2992         if (reset_required)
2993                 i40e_do_reset(pf, BIT(__I40E_PF_RESET_REQUESTED));
2994
2995         return 0;
2996 }
2997
2998 static const struct ethtool_ops i40e_ethtool_ops = {
2999         .get_settings           = i40e_get_settings,
3000         .set_settings           = i40e_set_settings,
3001         .get_drvinfo            = i40e_get_drvinfo,
3002         .get_regs_len           = i40e_get_regs_len,
3003         .get_regs               = i40e_get_regs,
3004         .nway_reset             = i40e_nway_reset,
3005         .get_link               = ethtool_op_get_link,
3006         .get_wol                = i40e_get_wol,
3007         .set_wol                = i40e_set_wol,
3008         .set_eeprom             = i40e_set_eeprom,
3009         .get_eeprom_len         = i40e_get_eeprom_len,
3010         .get_eeprom             = i40e_get_eeprom,
3011         .get_ringparam          = i40e_get_ringparam,
3012         .set_ringparam          = i40e_set_ringparam,
3013         .get_pauseparam         = i40e_get_pauseparam,
3014         .set_pauseparam         = i40e_set_pauseparam,
3015         .get_msglevel           = i40e_get_msglevel,
3016         .set_msglevel           = i40e_set_msglevel,
3017         .get_rxnfc              = i40e_get_rxnfc,
3018         .set_rxnfc              = i40e_set_rxnfc,
3019         .self_test              = i40e_diag_test,
3020         .get_strings            = i40e_get_strings,
3021         .set_phys_id            = i40e_set_phys_id,
3022         .get_sset_count         = i40e_get_sset_count,
3023         .get_ethtool_stats      = i40e_get_ethtool_stats,
3024         .get_coalesce           = i40e_get_coalesce,
3025         .set_coalesce           = i40e_set_coalesce,
3026         .get_rxfh_key_size      = i40e_get_rxfh_key_size,
3027         .get_rxfh_indir_size    = i40e_get_rxfh_indir_size,
3028         .get_rxfh               = i40e_get_rxfh,
3029         .set_rxfh               = i40e_set_rxfh,
3030         .get_channels           = i40e_get_channels,
3031         .set_channels           = i40e_set_channels,
3032         .get_ts_info            = i40e_get_ts_info,
3033         .get_priv_flags         = i40e_get_priv_flags,
3034         .set_priv_flags         = i40e_set_priv_flags,
3035         .get_per_queue_coalesce = i40e_get_per_queue_coalesce,
3036         .set_per_queue_coalesce = i40e_set_per_queue_coalesce,
3037 };
3038
3039 void i40e_set_ethtool_ops(struct net_device *netdev)
3040 {
3041         netdev->ethtool_ops = &i40e_ethtool_ops;
3042 }