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