LCOV - code coverage report
Current view: top level - include/uapi/linux - ethtool.h (source / functions) Hit Total Coverage
Test: Real Lines: 2 5 40.0 %
Date: 2020-10-17 15:46:43 Functions: 0 0 -
Legend: Neither, QEMU, Real, Both Branches: 0 0 -

           Branch data     Line data    Source code
       1                 :            : /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
       2                 :            : /*
       3                 :            :  * ethtool.h: Defines for Linux ethtool.
       4                 :            :  *
       5                 :            :  * Copyright (C) 1998 David S. Miller (davem@redhat.com)
       6                 :            :  * Copyright 2001 Jeff Garzik <jgarzik@pobox.com>
       7                 :            :  * Portions Copyright 2001 Sun Microsystems (thockin@sun.com)
       8                 :            :  * Portions Copyright 2002 Intel (eli.kupermann@intel.com,
       9                 :            :  *                                christopher.leech@intel.com,
      10                 :            :  *                                scott.feldman@intel.com)
      11                 :            :  * Portions Copyright (C) Sun Microsystems 2008
      12                 :            :  */
      13                 :            : 
      14                 :            : #ifndef _UAPI_LINUX_ETHTOOL_H
      15                 :            : #define _UAPI_LINUX_ETHTOOL_H
      16                 :            : 
      17                 :            : #include <linux/kernel.h>
      18                 :            : #include <linux/types.h>
      19                 :            : #include <linux/if_ether.h>
      20                 :            : 
      21                 :            : #ifndef __KERNEL__
      22                 :            : #include <limits.h> /* for INT_MAX */
      23                 :            : #endif
      24                 :            : 
      25                 :            : /* All structures exposed to userland should be defined such that they
      26                 :            :  * have the same layout for 32-bit and 64-bit userland.
      27                 :            :  */
      28                 :            : 
      29                 :            : /**
      30                 :            :  * struct ethtool_cmd - DEPRECATED, link control and status
      31                 :            :  * This structure is DEPRECATED, please use struct ethtool_link_settings.
      32                 :            :  * @cmd: Command number = %ETHTOOL_GSET or %ETHTOOL_SSET
      33                 :            :  * @supported: Bitmask of %SUPPORTED_* flags for the link modes,
      34                 :            :  *      physical connectors and other link features for which the
      35                 :            :  *      interface supports autonegotiation or auto-detection.
      36                 :            :  *      Read-only.
      37                 :            :  * @advertising: Bitmask of %ADVERTISED_* flags for the link modes,
      38                 :            :  *      physical connectors and other link features that are
      39                 :            :  *      advertised through autonegotiation or enabled for
      40                 :            :  *      auto-detection.
      41                 :            :  * @speed: Low bits of the speed, 1Mb units, 0 to INT_MAX or SPEED_UNKNOWN
      42                 :            :  * @duplex: Duplex mode; one of %DUPLEX_*
      43                 :            :  * @port: Physical connector type; one of %PORT_*
      44                 :            :  * @phy_address: MDIO address of PHY (transceiver); 0 or 255 if not
      45                 :            :  *      applicable.  For clause 45 PHYs this is the PRTAD.
      46                 :            :  * @transceiver: Historically used to distinguish different possible
      47                 :            :  *      PHY types, but not in a consistent way.  Deprecated.
      48                 :            :  * @autoneg: Enable/disable autonegotiation and auto-detection;
      49                 :            :  *      either %AUTONEG_DISABLE or %AUTONEG_ENABLE
      50                 :            :  * @mdio_support: Bitmask of %ETH_MDIO_SUPPORTS_* flags for the MDIO
      51                 :            :  *      protocols supported by the interface; 0 if unknown.
      52                 :            :  *      Read-only.
      53                 :            :  * @maxtxpkt: Historically used to report TX IRQ coalescing; now
      54                 :            :  *      obsoleted by &struct ethtool_coalesce.  Read-only; deprecated.
      55                 :            :  * @maxrxpkt: Historically used to report RX IRQ coalescing; now
      56                 :            :  *      obsoleted by &struct ethtool_coalesce.  Read-only; deprecated.
      57                 :            :  * @speed_hi: High bits of the speed, 1Mb units, 0 to INT_MAX or SPEED_UNKNOWN
      58                 :            :  * @eth_tp_mdix: Ethernet twisted-pair MDI(-X) status; one of
      59                 :            :  *      %ETH_TP_MDI_*.  If the status is unknown or not applicable, the
      60                 :            :  *      value will be %ETH_TP_MDI_INVALID.  Read-only.
      61                 :            :  * @eth_tp_mdix_ctrl: Ethernet twisted pair MDI(-X) control; one of
      62                 :            :  *      %ETH_TP_MDI_*.  If MDI(-X) control is not implemented, reads
      63                 :            :  *      yield %ETH_TP_MDI_INVALID and writes may be ignored or rejected.
      64                 :            :  *      When written successfully, the link should be renegotiated if
      65                 :            :  *      necessary.
      66                 :            :  * @lp_advertising: Bitmask of %ADVERTISED_* flags for the link modes
      67                 :            :  *      and other link features that the link partner advertised
      68                 :            :  *      through autonegotiation; 0 if unknown or not applicable.
      69                 :            :  *      Read-only.
      70                 :            :  *
      71                 :            :  * The link speed in Mbps is split between @speed and @speed_hi.  Use
      72                 :            :  * the ethtool_cmd_speed() and ethtool_cmd_speed_set() functions to
      73                 :            :  * access it.
      74                 :            :  *
      75                 :            :  * If autonegotiation is disabled, the speed and @duplex represent the
      76                 :            :  * fixed link mode and are writable if the driver supports multiple
      77                 :            :  * link modes.  If it is enabled then they are read-only; if the link
      78                 :            :  * is up they represent the negotiated link mode; if the link is down,
      79                 :            :  * the speed is 0, %SPEED_UNKNOWN or the highest enabled speed and
      80                 :            :  * @duplex is %DUPLEX_UNKNOWN or the best enabled duplex mode.
      81                 :            :  *
      82                 :            :  * Some hardware interfaces may have multiple PHYs and/or physical
      83                 :            :  * connectors fitted or do not allow the driver to detect which are
      84                 :            :  * fitted.  For these interfaces @port and/or @phy_address may be
      85                 :            :  * writable, possibly dependent on @autoneg being %AUTONEG_DISABLE.
      86                 :            :  * Otherwise, attempts to write different values may be ignored or
      87                 :            :  * rejected.
      88                 :            :  *
      89                 :            :  * Users should assume that all fields not marked read-only are
      90                 :            :  * writable and subject to validation by the driver.  They should use
      91                 :            :  * %ETHTOOL_GSET to get the current values before making specific
      92                 :            :  * changes and then applying them with %ETHTOOL_SSET.
      93                 :            :  *
      94                 :            :  * Deprecated fields should be ignored by both users and drivers.
      95                 :            :  */
      96                 :            : struct ethtool_cmd {
      97                 :            :         __u32   cmd;
      98                 :            :         __u32   supported;
      99                 :            :         __u32   advertising;
     100                 :            :         __u16   speed;
     101                 :            :         __u8    duplex;
     102                 :            :         __u8    port;
     103                 :            :         __u8    phy_address;
     104                 :            :         __u8    transceiver;
     105                 :            :         __u8    autoneg;
     106                 :            :         __u8    mdio_support;
     107                 :            :         __u32   maxtxpkt;
     108                 :            :         __u32   maxrxpkt;
     109                 :            :         __u16   speed_hi;
     110                 :            :         __u8    eth_tp_mdix;
     111                 :            :         __u8    eth_tp_mdix_ctrl;
     112                 :            :         __u32   lp_advertising;
     113                 :            :         __u32   reserved[2];
     114                 :            : };
     115                 :            : 
     116                 :            : static inline void ethtool_cmd_speed_set(struct ethtool_cmd *ep,
     117                 :            :                                          __u32 speed)
     118                 :            : {
     119                 :          2 :         ep->speed = (__u16)(speed & 0xFFFF);
     120                 :          2 :         ep->speed_hi = (__u16)(speed >> 16);
     121                 :            : }
     122                 :            : 
     123                 :            : static inline __u32 ethtool_cmd_speed(const struct ethtool_cmd *ep)
     124                 :            : {
     125                 :          0 :         return (ep->speed_hi << 16) | ep->speed;
     126                 :            : }
     127                 :            : 
     128                 :            : /* Device supports clause 22 register access to PHY or peripherals
     129                 :            :  * using the interface defined in <linux/mii.h>.  This should not be
     130                 :            :  * set if there are known to be no such peripherals present or if
     131                 :            :  * the driver only emulates clause 22 registers for compatibility.
     132                 :            :  */
     133                 :            : #define ETH_MDIO_SUPPORTS_C22   1
     134                 :            : 
     135                 :            : /* Device supports clause 45 register access to PHY or peripherals
     136                 :            :  * using the interface defined in <linux/mii.h> and <linux/mdio.h>.
     137                 :            :  * This should not be set if there are known to be no such peripherals
     138                 :            :  * present.
     139                 :            :  */
     140                 :            : #define ETH_MDIO_SUPPORTS_C45   2
     141                 :            : 
     142                 :            : #define ETHTOOL_FWVERS_LEN      32
     143                 :            : #define ETHTOOL_BUSINFO_LEN     32
     144                 :            : #define ETHTOOL_EROMVERS_LEN    32
     145                 :            : 
     146                 :            : /**
     147                 :            :  * struct ethtool_drvinfo - general driver and device information
     148                 :            :  * @cmd: Command number = %ETHTOOL_GDRVINFO
     149                 :            :  * @driver: Driver short name.  This should normally match the name
     150                 :            :  *      in its bus driver structure (e.g. pci_driver::name).  Must
     151                 :            :  *      not be an empty string.
     152                 :            :  * @version: Driver version string; may be an empty string
     153                 :            :  * @fw_version: Firmware version string; may be an empty string
     154                 :            :  * @erom_version: Expansion ROM version string; may be an empty string
     155                 :            :  * @bus_info: Device bus address.  This should match the dev_name()
     156                 :            :  *      string for the underlying bus device, if there is one.  May be
     157                 :            :  *      an empty string.
     158                 :            :  * @n_priv_flags: Number of flags valid for %ETHTOOL_GPFLAGS and
     159                 :            :  *      %ETHTOOL_SPFLAGS commands; also the number of strings in the
     160                 :            :  *      %ETH_SS_PRIV_FLAGS set
     161                 :            :  * @n_stats: Number of u64 statistics returned by the %ETHTOOL_GSTATS
     162                 :            :  *      command; also the number of strings in the %ETH_SS_STATS set
     163                 :            :  * @testinfo_len: Number of results returned by the %ETHTOOL_TEST
     164                 :            :  *      command; also the number of strings in the %ETH_SS_TEST set
     165                 :            :  * @eedump_len: Size of EEPROM accessible through the %ETHTOOL_GEEPROM
     166                 :            :  *      and %ETHTOOL_SEEPROM commands, in bytes
     167                 :            :  * @regdump_len: Size of register dump returned by the %ETHTOOL_GREGS
     168                 :            :  *      command, in bytes
     169                 :            :  *
     170                 :            :  * Users can use the %ETHTOOL_GSSET_INFO command to get the number of
     171                 :            :  * strings in any string set (from Linux 2.6.34).
     172                 :            :  *
     173                 :            :  * Drivers should set at most @driver, @version, @fw_version and
     174                 :            :  * @bus_info in their get_drvinfo() implementation.  The ethtool
     175                 :            :  * core fills in the other fields using other driver operations.
     176                 :            :  */
     177                 :            : struct ethtool_drvinfo {
     178                 :            :         __u32   cmd;
     179                 :            :         char    driver[32];
     180                 :            :         char    version[32];
     181                 :            :         char    fw_version[ETHTOOL_FWVERS_LEN];
     182                 :            :         char    bus_info[ETHTOOL_BUSINFO_LEN];
     183                 :            :         char    erom_version[ETHTOOL_EROMVERS_LEN];
     184                 :            :         char    reserved2[12];
     185                 :            :         __u32   n_priv_flags;
     186                 :            :         __u32   n_stats;
     187                 :            :         __u32   testinfo_len;
     188                 :            :         __u32   eedump_len;
     189                 :            :         __u32   regdump_len;
     190                 :            : };
     191                 :            : 
     192                 :            : #define SOPASS_MAX      6
     193                 :            : 
     194                 :            : /**
     195                 :            :  * struct ethtool_wolinfo - Wake-On-Lan configuration
     196                 :            :  * @cmd: Command number = %ETHTOOL_GWOL or %ETHTOOL_SWOL
     197                 :            :  * @supported: Bitmask of %WAKE_* flags for supported Wake-On-Lan modes.
     198                 :            :  *      Read-only.
     199                 :            :  * @wolopts: Bitmask of %WAKE_* flags for enabled Wake-On-Lan modes.
     200                 :            :  * @sopass: SecureOn(tm) password; meaningful only if %WAKE_MAGICSECURE
     201                 :            :  *      is set in @wolopts.
     202                 :            :  */
     203                 :            : struct ethtool_wolinfo {
     204                 :            :         __u32   cmd;
     205                 :            :         __u32   supported;
     206                 :            :         __u32   wolopts;
     207                 :            :         __u8    sopass[SOPASS_MAX];
     208                 :            : };
     209                 :            : 
     210                 :            : /* for passing single values */
     211                 :            : struct ethtool_value {
     212                 :            :         __u32   cmd;
     213                 :            :         __u32   data;
     214                 :            : };
     215                 :            : 
     216                 :            : #define PFC_STORM_PREVENTION_AUTO       0xffff
     217                 :            : #define PFC_STORM_PREVENTION_DISABLE    0
     218                 :            : 
     219                 :            : enum tunable_id {
     220                 :            :         ETHTOOL_ID_UNSPEC,
     221                 :            :         ETHTOOL_RX_COPYBREAK,
     222                 :            :         ETHTOOL_TX_COPYBREAK,
     223                 :            :         ETHTOOL_PFC_PREVENTION_TOUT, /* timeout in msecs */
     224                 :            :         /*
     225                 :            :          * Add your fresh new tunable attribute above and remember to update
     226                 :            :          * tunable_strings[] in net/core/ethtool.c
     227                 :            :          */
     228                 :            :         __ETHTOOL_TUNABLE_COUNT,
     229                 :            : };
     230                 :            : 
     231                 :            : enum tunable_type_id {
     232                 :            :         ETHTOOL_TUNABLE_UNSPEC,
     233                 :            :         ETHTOOL_TUNABLE_U8,
     234                 :            :         ETHTOOL_TUNABLE_U16,
     235                 :            :         ETHTOOL_TUNABLE_U32,
     236                 :            :         ETHTOOL_TUNABLE_U64,
     237                 :            :         ETHTOOL_TUNABLE_STRING,
     238                 :            :         ETHTOOL_TUNABLE_S8,
     239                 :            :         ETHTOOL_TUNABLE_S16,
     240                 :            :         ETHTOOL_TUNABLE_S32,
     241                 :            :         ETHTOOL_TUNABLE_S64,
     242                 :            : };
     243                 :            : 
     244                 :            : struct ethtool_tunable {
     245                 :            :         __u32   cmd;
     246                 :            :         __u32   id;
     247                 :            :         __u32   type_id;
     248                 :            :         __u32   len;
     249                 :            :         void    *data[0];
     250                 :            : };
     251                 :            : 
     252                 :            : #define DOWNSHIFT_DEV_DEFAULT_COUNT     0xff
     253                 :            : #define DOWNSHIFT_DEV_DISABLE           0
     254                 :            : 
     255                 :            : /* Time in msecs after which link is reported as down
     256                 :            :  * 0 = lowest time supported by the PHY
     257                 :            :  * 0xff = off, link down detection according to standard
     258                 :            :  */
     259                 :            : #define ETHTOOL_PHY_FAST_LINK_DOWN_ON   0
     260                 :            : #define ETHTOOL_PHY_FAST_LINK_DOWN_OFF  0xff
     261                 :            : 
     262                 :            : /* Energy Detect Power Down (EDPD) is a feature supported by some PHYs, where
     263                 :            :  * the PHY's RX & TX blocks are put into a low-power mode when there is no
     264                 :            :  * link detected (typically cable is un-plugged). For RX, only a minimal
     265                 :            :  * link-detection is available, and for TX the PHY wakes up to send link pulses
     266                 :            :  * to avoid any lock-ups in case the peer PHY may also be running in EDPD mode.
     267                 :            :  *
     268                 :            :  * Some PHYs may support configuration of the wake-up interval for TX pulses,
     269                 :            :  * and some PHYs may support only disabling TX pulses entirely. For the latter
     270                 :            :  * a special value is required (ETHTOOL_PHY_EDPD_NO_TX) so that this can be
     271                 :            :  * configured from userspace (should the user want it).
     272                 :            :  *
     273                 :            :  * The interval units for TX wake-up are in milliseconds, since this should
     274                 :            :  * cover a reasonable range of intervals:
     275                 :            :  *  - from 1 millisecond, which does not sound like much of a power-saver
     276                 :            :  *  - to ~65 seconds which is quite a lot to wait for a link to come up when
     277                 :            :  *    plugging a cable
     278                 :            :  */
     279                 :            : #define ETHTOOL_PHY_EDPD_DFLT_TX_MSECS          0xffff
     280                 :            : #define ETHTOOL_PHY_EDPD_NO_TX                  0xfffe
     281                 :            : #define ETHTOOL_PHY_EDPD_DISABLE                0
     282                 :            : 
     283                 :            : enum phy_tunable_id {
     284                 :            :         ETHTOOL_PHY_ID_UNSPEC,
     285                 :            :         ETHTOOL_PHY_DOWNSHIFT,
     286                 :            :         ETHTOOL_PHY_FAST_LINK_DOWN,
     287                 :            :         ETHTOOL_PHY_EDPD,
     288                 :            :         /*
     289                 :            :          * Add your fresh new phy tunable attribute above and remember to update
     290                 :            :          * phy_tunable_strings[] in net/core/ethtool.c
     291                 :            :          */
     292                 :            :         __ETHTOOL_PHY_TUNABLE_COUNT,
     293                 :            : };
     294                 :            : 
     295                 :            : /**
     296                 :            :  * struct ethtool_regs - hardware register dump
     297                 :            :  * @cmd: Command number = %ETHTOOL_GREGS
     298                 :            :  * @version: Dump format version.  This is driver-specific and may
     299                 :            :  *      distinguish different chips/revisions.  Drivers must use new
     300                 :            :  *      version numbers whenever the dump format changes in an
     301                 :            :  *      incompatible way.
     302                 :            :  * @len: On entry, the real length of @data.  On return, the number of
     303                 :            :  *      bytes used.
     304                 :            :  * @data: Buffer for the register dump
     305                 :            :  *
     306                 :            :  * Users should use %ETHTOOL_GDRVINFO to find the maximum length of
     307                 :            :  * a register dump for the interface.  They must allocate the buffer
     308                 :            :  * immediately following this structure.
     309                 :            :  */
     310                 :            : struct ethtool_regs {
     311                 :            :         __u32   cmd;
     312                 :            :         __u32   version;
     313                 :            :         __u32   len;
     314                 :            :         __u8    data[0];
     315                 :            : };
     316                 :            : 
     317                 :            : /**
     318                 :            :  * struct ethtool_eeprom - EEPROM dump
     319                 :            :  * @cmd: Command number = %ETHTOOL_GEEPROM, %ETHTOOL_GMODULEEEPROM or
     320                 :            :  *      %ETHTOOL_SEEPROM
     321                 :            :  * @magic: A 'magic cookie' value to guard against accidental changes.
     322                 :            :  *      The value passed in to %ETHTOOL_SEEPROM must match the value
     323                 :            :  *      returned by %ETHTOOL_GEEPROM for the same device.  This is
     324                 :            :  *      unused when @cmd is %ETHTOOL_GMODULEEEPROM.
     325                 :            :  * @offset: Offset within the EEPROM to begin reading/writing, in bytes
     326                 :            :  * @len: On entry, number of bytes to read/write.  On successful
     327                 :            :  *      return, number of bytes actually read/written.  In case of
     328                 :            :  *      error, this may indicate at what point the error occurred.
     329                 :            :  * @data: Buffer to read/write from
     330                 :            :  *
     331                 :            :  * Users may use %ETHTOOL_GDRVINFO or %ETHTOOL_GMODULEINFO to find
     332                 :            :  * the length of an on-board or module EEPROM, respectively.  They
     333                 :            :  * must allocate the buffer immediately following this structure.
     334                 :            :  */
     335                 :            : struct ethtool_eeprom {
     336                 :            :         __u32   cmd;
     337                 :            :         __u32   magic;
     338                 :            :         __u32   offset;
     339                 :            :         __u32   len;
     340                 :            :         __u8    data[0];
     341                 :            : };
     342                 :            : 
     343                 :            : /**
     344                 :            :  * struct ethtool_eee - Energy Efficient Ethernet information
     345                 :            :  * @cmd: ETHTOOL_{G,S}EEE
     346                 :            :  * @supported: Mask of %SUPPORTED_* flags for the speed/duplex combinations
     347                 :            :  *      for which there is EEE support.
     348                 :            :  * @advertised: Mask of %ADVERTISED_* flags for the speed/duplex combinations
     349                 :            :  *      advertised as eee capable.
     350                 :            :  * @lp_advertised: Mask of %ADVERTISED_* flags for the speed/duplex
     351                 :            :  *      combinations advertised by the link partner as eee capable.
     352                 :            :  * @eee_active: Result of the eee auto negotiation.
     353                 :            :  * @eee_enabled: EEE configured mode (enabled/disabled).
     354                 :            :  * @tx_lpi_enabled: Whether the interface should assert its tx lpi, given
     355                 :            :  *      that eee was negotiated.
     356                 :            :  * @tx_lpi_timer: Time in microseconds the interface delays prior to asserting
     357                 :            :  *      its tx lpi (after reaching 'idle' state). Effective only when eee
     358                 :            :  *      was negotiated and tx_lpi_enabled was set.
     359                 :            :  */
     360                 :            : struct ethtool_eee {
     361                 :            :         __u32   cmd;
     362                 :            :         __u32   supported;
     363                 :            :         __u32   advertised;
     364                 :            :         __u32   lp_advertised;
     365                 :            :         __u32   eee_active;
     366                 :            :         __u32   eee_enabled;
     367                 :            :         __u32   tx_lpi_enabled;
     368                 :            :         __u32   tx_lpi_timer;
     369                 :            :         __u32   reserved[2];
     370                 :            : };
     371                 :            : 
     372                 :            : /**
     373                 :            :  * struct ethtool_modinfo - plugin module eeprom information
     374                 :            :  * @cmd: %ETHTOOL_GMODULEINFO
     375                 :            :  * @type: Standard the module information conforms to %ETH_MODULE_SFF_xxxx
     376                 :            :  * @eeprom_len: Length of the eeprom
     377                 :            :  *
     378                 :            :  * This structure is used to return the information to
     379                 :            :  * properly size memory for a subsequent call to %ETHTOOL_GMODULEEEPROM.
     380                 :            :  * The type code indicates the eeprom data format
     381                 :            :  */
     382                 :            : struct ethtool_modinfo {
     383                 :            :         __u32   cmd;
     384                 :            :         __u32   type;
     385                 :            :         __u32   eeprom_len;
     386                 :            :         __u32   reserved[8];
     387                 :            : };
     388                 :            : 
     389                 :            : /**
     390                 :            :  * struct ethtool_coalesce - coalescing parameters for IRQs and stats updates
     391                 :            :  * @cmd: ETHTOOL_{G,S}COALESCE
     392                 :            :  * @rx_coalesce_usecs: How many usecs to delay an RX interrupt after
     393                 :            :  *      a packet arrives.
     394                 :            :  * @rx_max_coalesced_frames: Maximum number of packets to receive
     395                 :            :  *      before an RX interrupt.
     396                 :            :  * @rx_coalesce_usecs_irq: Same as @rx_coalesce_usecs, except that
     397                 :            :  *      this value applies while an IRQ is being serviced by the host.
     398                 :            :  * @rx_max_coalesced_frames_irq: Same as @rx_max_coalesced_frames,
     399                 :            :  *      except that this value applies while an IRQ is being serviced
     400                 :            :  *      by the host.
     401                 :            :  * @tx_coalesce_usecs: How many usecs to delay a TX interrupt after
     402                 :            :  *      a packet is sent.
     403                 :            :  * @tx_max_coalesced_frames: Maximum number of packets to be sent
     404                 :            :  *      before a TX interrupt.
     405                 :            :  * @tx_coalesce_usecs_irq: Same as @tx_coalesce_usecs, except that
     406                 :            :  *      this value applies while an IRQ is being serviced by the host.
     407                 :            :  * @tx_max_coalesced_frames_irq: Same as @tx_max_coalesced_frames,
     408                 :            :  *      except that this value applies while an IRQ is being serviced
     409                 :            :  *      by the host.
     410                 :            :  * @stats_block_coalesce_usecs: How many usecs to delay in-memory
     411                 :            :  *      statistics block updates.  Some drivers do not have an
     412                 :            :  *      in-memory statistic block, and in such cases this value is
     413                 :            :  *      ignored.  This value must not be zero.
     414                 :            :  * @use_adaptive_rx_coalesce: Enable adaptive RX coalescing.
     415                 :            :  * @use_adaptive_tx_coalesce: Enable adaptive TX coalescing.
     416                 :            :  * @pkt_rate_low: Threshold for low packet rate (packets per second).
     417                 :            :  * @rx_coalesce_usecs_low: How many usecs to delay an RX interrupt after
     418                 :            :  *      a packet arrives, when the packet rate is below @pkt_rate_low.
     419                 :            :  * @rx_max_coalesced_frames_low: Maximum number of packets to be received
     420                 :            :  *      before an RX interrupt, when the packet rate is below @pkt_rate_low.
     421                 :            :  * @tx_coalesce_usecs_low: How many usecs to delay a TX interrupt after
     422                 :            :  *      a packet is sent, when the packet rate is below @pkt_rate_low.
     423                 :            :  * @tx_max_coalesced_frames_low: Maximum nuumber of packets to be sent before
     424                 :            :  *      a TX interrupt, when the packet rate is below @pkt_rate_low.
     425                 :            :  * @pkt_rate_high: Threshold for high packet rate (packets per second).
     426                 :            :  * @rx_coalesce_usecs_high: How many usecs to delay an RX interrupt after
     427                 :            :  *      a packet arrives, when the packet rate is above @pkt_rate_high.
     428                 :            :  * @rx_max_coalesced_frames_high: Maximum number of packets to be received
     429                 :            :  *      before an RX interrupt, when the packet rate is above @pkt_rate_high.
     430                 :            :  * @tx_coalesce_usecs_high: How many usecs to delay a TX interrupt after
     431                 :            :  *      a packet is sent, when the packet rate is above @pkt_rate_high.
     432                 :            :  * @tx_max_coalesced_frames_high: Maximum number of packets to be sent before
     433                 :            :  *      a TX interrupt, when the packet rate is above @pkt_rate_high.
     434                 :            :  * @rate_sample_interval: How often to do adaptive coalescing packet rate
     435                 :            :  *      sampling, measured in seconds.  Must not be zero.
     436                 :            :  *
     437                 :            :  * Each pair of (usecs, max_frames) fields specifies that interrupts
     438                 :            :  * should be coalesced until
     439                 :            :  *      (usecs > 0 && time_since_first_completion >= usecs) ||
     440                 :            :  *      (max_frames > 0 && completed_frames >= max_frames)
     441                 :            :  *
     442                 :            :  * It is illegal to set both usecs and max_frames to zero as this
     443                 :            :  * would cause interrupts to never be generated.  To disable
     444                 :            :  * coalescing, set usecs = 0 and max_frames = 1.
     445                 :            :  *
     446                 :            :  * Some implementations ignore the value of max_frames and use the
     447                 :            :  * condition time_since_first_completion >= usecs
     448                 :            :  *
     449                 :            :  * This is deprecated.  Drivers for hardware that does not support
     450                 :            :  * counting completions should validate that max_frames == !rx_usecs.
     451                 :            :  *
     452                 :            :  * Adaptive RX/TX coalescing is an algorithm implemented by some
     453                 :            :  * drivers to improve latency under low packet rates and improve
     454                 :            :  * throughput under high packet rates.  Some drivers only implement
     455                 :            :  * one of RX or TX adaptive coalescing.  Anything not implemented by
     456                 :            :  * the driver causes these values to be silently ignored.
     457                 :            :  *
     458                 :            :  * When the packet rate is below @pkt_rate_high but above
     459                 :            :  * @pkt_rate_low (both measured in packets per second) the
     460                 :            :  * normal {rx,tx}_* coalescing parameters are used.
     461                 :            :  */
     462                 :            : struct ethtool_coalesce {
     463                 :            :         __u32   cmd;
     464                 :            :         __u32   rx_coalesce_usecs;
     465                 :            :         __u32   rx_max_coalesced_frames;
     466                 :            :         __u32   rx_coalesce_usecs_irq;
     467                 :            :         __u32   rx_max_coalesced_frames_irq;
     468                 :            :         __u32   tx_coalesce_usecs;
     469                 :            :         __u32   tx_max_coalesced_frames;
     470                 :            :         __u32   tx_coalesce_usecs_irq;
     471                 :            :         __u32   tx_max_coalesced_frames_irq;
     472                 :            :         __u32   stats_block_coalesce_usecs;
     473                 :            :         __u32   use_adaptive_rx_coalesce;
     474                 :            :         __u32   use_adaptive_tx_coalesce;
     475                 :            :         __u32   pkt_rate_low;
     476                 :            :         __u32   rx_coalesce_usecs_low;
     477                 :            :         __u32   rx_max_coalesced_frames_low;
     478                 :            :         __u32   tx_coalesce_usecs_low;
     479                 :            :         __u32   tx_max_coalesced_frames_low;
     480                 :            :         __u32   pkt_rate_high;
     481                 :            :         __u32   rx_coalesce_usecs_high;
     482                 :            :         __u32   rx_max_coalesced_frames_high;
     483                 :            :         __u32   tx_coalesce_usecs_high;
     484                 :            :         __u32   tx_max_coalesced_frames_high;
     485                 :            :         __u32   rate_sample_interval;
     486                 :            : };
     487                 :            : 
     488                 :            : /**
     489                 :            :  * struct ethtool_ringparam - RX/TX ring parameters
     490                 :            :  * @cmd: Command number = %ETHTOOL_GRINGPARAM or %ETHTOOL_SRINGPARAM
     491                 :            :  * @rx_max_pending: Maximum supported number of pending entries per
     492                 :            :  *      RX ring.  Read-only.
     493                 :            :  * @rx_mini_max_pending: Maximum supported number of pending entries
     494                 :            :  *      per RX mini ring.  Read-only.
     495                 :            :  * @rx_jumbo_max_pending: Maximum supported number of pending entries
     496                 :            :  *      per RX jumbo ring.  Read-only.
     497                 :            :  * @tx_max_pending: Maximum supported number of pending entries per
     498                 :            :  *      TX ring.  Read-only.
     499                 :            :  * @rx_pending: Current maximum number of pending entries per RX ring
     500                 :            :  * @rx_mini_pending: Current maximum number of pending entries per RX
     501                 :            :  *      mini ring
     502                 :            :  * @rx_jumbo_pending: Current maximum number of pending entries per RX
     503                 :            :  *      jumbo ring
     504                 :            :  * @tx_pending: Current maximum supported number of pending entries
     505                 :            :  *      per TX ring
     506                 :            :  *
     507                 :            :  * If the interface does not have separate RX mini and/or jumbo rings,
     508                 :            :  * @rx_mini_max_pending and/or @rx_jumbo_max_pending will be 0.
     509                 :            :  *
     510                 :            :  * There may also be driver-dependent minimum values for the number
     511                 :            :  * of entries per ring.
     512                 :            :  */
     513                 :            : struct ethtool_ringparam {
     514                 :            :         __u32   cmd;
     515                 :            :         __u32   rx_max_pending;
     516                 :            :         __u32   rx_mini_max_pending;
     517                 :            :         __u32   rx_jumbo_max_pending;
     518                 :            :         __u32   tx_max_pending;
     519                 :            :         __u32   rx_pending;
     520                 :            :         __u32   rx_mini_pending;
     521                 :            :         __u32   rx_jumbo_pending;
     522                 :            :         __u32   tx_pending;
     523                 :            : };
     524                 :            : 
     525                 :            : /**
     526                 :            :  * struct ethtool_channels - configuring number of network channel
     527                 :            :  * @cmd: ETHTOOL_{G,S}CHANNELS
     528                 :            :  * @max_rx: Read only. Maximum number of receive channel the driver support.
     529                 :            :  * @max_tx: Read only. Maximum number of transmit channel the driver support.
     530                 :            :  * @max_other: Read only. Maximum number of other channel the driver support.
     531                 :            :  * @max_combined: Read only. Maximum number of combined channel the driver
     532                 :            :  *      support. Set of queues RX, TX or other.
     533                 :            :  * @rx_count: Valid values are in the range 1 to the max_rx.
     534                 :            :  * @tx_count: Valid values are in the range 1 to the max_tx.
     535                 :            :  * @other_count: Valid values are in the range 1 to the max_other.
     536                 :            :  * @combined_count: Valid values are in the range 1 to the max_combined.
     537                 :            :  *
     538                 :            :  * This can be used to configure RX, TX and other channels.
     539                 :            :  */
     540                 :            : 
     541                 :            : struct ethtool_channels {
     542                 :            :         __u32   cmd;
     543                 :            :         __u32   max_rx;
     544                 :            :         __u32   max_tx;
     545                 :            :         __u32   max_other;
     546                 :            :         __u32   max_combined;
     547                 :            :         __u32   rx_count;
     548                 :            :         __u32   tx_count;
     549                 :            :         __u32   other_count;
     550                 :            :         __u32   combined_count;
     551                 :            : };
     552                 :            : 
     553                 :            : /**
     554                 :            :  * struct ethtool_pauseparam - Ethernet pause (flow control) parameters
     555                 :            :  * @cmd: Command number = %ETHTOOL_GPAUSEPARAM or %ETHTOOL_SPAUSEPARAM
     556                 :            :  * @autoneg: Flag to enable autonegotiation of pause frame use
     557                 :            :  * @rx_pause: Flag to enable reception of pause frames
     558                 :            :  * @tx_pause: Flag to enable transmission of pause frames
     559                 :            :  *
     560                 :            :  * Drivers should reject a non-zero setting of @autoneg when
     561                 :            :  * autoneogotiation is disabled (or not supported) for the link.
     562                 :            :  *
     563                 :            :  * If the link is autonegotiated, drivers should use
     564                 :            :  * mii_advertise_flowctrl() or similar code to set the advertised
     565                 :            :  * pause frame capabilities based on the @rx_pause and @tx_pause flags,
     566                 :            :  * even if @autoneg is zero.  They should also allow the advertised
     567                 :            :  * pause frame capabilities to be controlled directly through the
     568                 :            :  * advertising field of &struct ethtool_cmd.
     569                 :            :  *
     570                 :            :  * If @autoneg is non-zero, the MAC is configured to send and/or
     571                 :            :  * receive pause frames according to the result of autonegotiation.
     572                 :            :  * Otherwise, it is configured directly based on the @rx_pause and
     573                 :            :  * @tx_pause flags.
     574                 :            :  */
     575                 :            : struct ethtool_pauseparam {
     576                 :            :         __u32   cmd;
     577                 :            :         __u32   autoneg;
     578                 :            :         __u32   rx_pause;
     579                 :            :         __u32   tx_pause;
     580                 :            : };
     581                 :            : 
     582                 :            : #define ETH_GSTRING_LEN         32
     583                 :            : 
     584                 :            : /**
     585                 :            :  * enum ethtool_stringset - string set ID
     586                 :            :  * @ETH_SS_TEST: Self-test result names, for use with %ETHTOOL_TEST
     587                 :            :  * @ETH_SS_STATS: Statistic names, for use with %ETHTOOL_GSTATS
     588                 :            :  * @ETH_SS_PRIV_FLAGS: Driver private flag names, for use with
     589                 :            :  *      %ETHTOOL_GPFLAGS and %ETHTOOL_SPFLAGS
     590                 :            :  * @ETH_SS_NTUPLE_FILTERS: Previously used with %ETHTOOL_GRXNTUPLE;
     591                 :            :  *      now deprecated
     592                 :            :  * @ETH_SS_FEATURES: Device feature names
     593                 :            :  * @ETH_SS_RSS_HASH_FUNCS: RSS hush function names
     594                 :            :  * @ETH_SS_PHY_STATS: Statistic names, for use with %ETHTOOL_GPHYSTATS
     595                 :            :  * @ETH_SS_PHY_TUNABLES: PHY tunable names
     596                 :            :  */
     597                 :            : enum ethtool_stringset {
     598                 :            :         ETH_SS_TEST             = 0,
     599                 :            :         ETH_SS_STATS,
     600                 :            :         ETH_SS_PRIV_FLAGS,
     601                 :            :         ETH_SS_NTUPLE_FILTERS,
     602                 :            :         ETH_SS_FEATURES,
     603                 :            :         ETH_SS_RSS_HASH_FUNCS,
     604                 :            :         ETH_SS_TUNABLES,
     605                 :            :         ETH_SS_PHY_STATS,
     606                 :            :         ETH_SS_PHY_TUNABLES,
     607                 :            : };
     608                 :            : 
     609                 :            : /**
     610                 :            :  * struct ethtool_gstrings - string set for data tagging
     611                 :            :  * @cmd: Command number = %ETHTOOL_GSTRINGS
     612                 :            :  * @string_set: String set ID; one of &enum ethtool_stringset
     613                 :            :  * @len: On return, the number of strings in the string set
     614                 :            :  * @data: Buffer for strings.  Each string is null-padded to a size of
     615                 :            :  *      %ETH_GSTRING_LEN.
     616                 :            :  *
     617                 :            :  * Users must use %ETHTOOL_GSSET_INFO to find the number of strings in
     618                 :            :  * the string set.  They must allocate a buffer of the appropriate
     619                 :            :  * size immediately following this structure.
     620                 :            :  */
     621                 :            : struct ethtool_gstrings {
     622                 :            :         __u32   cmd;
     623                 :            :         __u32   string_set;
     624                 :            :         __u32   len;
     625                 :            :         __u8    data[0];
     626                 :            : };
     627                 :            : 
     628                 :            : /**
     629                 :            :  * struct ethtool_sset_info - string set information
     630                 :            :  * @cmd: Command number = %ETHTOOL_GSSET_INFO
     631                 :            :  * @sset_mask: On entry, a bitmask of string sets to query, with bits
     632                 :            :  *      numbered according to &enum ethtool_stringset.  On return, a
     633                 :            :  *      bitmask of those string sets queried that are supported.
     634                 :            :  * @data: Buffer for string set sizes.  On return, this contains the
     635                 :            :  *      size of each string set that was queried and supported, in
     636                 :            :  *      order of ID.
     637                 :            :  *
     638                 :            :  * Example: The user passes in @sset_mask = 0x7 (sets 0, 1, 2) and on
     639                 :            :  * return @sset_mask == 0x6 (sets 1, 2).  Then @data[0] contains the
     640                 :            :  * size of set 1 and @data[1] contains the size of set 2.
     641                 :            :  *
     642                 :            :  * Users must allocate a buffer of the appropriate size (4 * number of
     643                 :            :  * sets queried) immediately following this structure.
     644                 :            :  */
     645                 :            : struct ethtool_sset_info {
     646                 :            :         __u32   cmd;
     647                 :            :         __u32   reserved;
     648                 :            :         __u64   sset_mask;
     649                 :            :         __u32   data[0];
     650                 :            : };
     651                 :            : 
     652                 :            : /**
     653                 :            :  * enum ethtool_test_flags - flags definition of ethtool_test
     654                 :            :  * @ETH_TEST_FL_OFFLINE: if set perform online and offline tests, otherwise
     655                 :            :  *      only online tests.
     656                 :            :  * @ETH_TEST_FL_FAILED: Driver set this flag if test fails.
     657                 :            :  * @ETH_TEST_FL_EXTERNAL_LB: Application request to perform external loopback
     658                 :            :  *      test.
     659                 :            :  * @ETH_TEST_FL_EXTERNAL_LB_DONE: Driver performed the external loopback test
     660                 :            :  */
     661                 :            : 
     662                 :            : enum ethtool_test_flags {
     663                 :            :         ETH_TEST_FL_OFFLINE     = (1 << 0),
     664                 :            :         ETH_TEST_FL_FAILED      = (1 << 1),
     665                 :            :         ETH_TEST_FL_EXTERNAL_LB = (1 << 2),
     666                 :            :         ETH_TEST_FL_EXTERNAL_LB_DONE    = (1 << 3),
     667                 :            : };
     668                 :            : 
     669                 :            : /**
     670                 :            :  * struct ethtool_test - device self-test invocation
     671                 :            :  * @cmd: Command number = %ETHTOOL_TEST
     672                 :            :  * @flags: A bitmask of flags from &enum ethtool_test_flags.  Some
     673                 :            :  *      flags may be set by the user on entry; others may be set by
     674                 :            :  *      the driver on return.
     675                 :            :  * @len: On return, the number of test results
     676                 :            :  * @data: Array of test results
     677                 :            :  *
     678                 :            :  * Users must use %ETHTOOL_GSSET_INFO or %ETHTOOL_GDRVINFO to find the
     679                 :            :  * number of test results that will be returned.  They must allocate a
     680                 :            :  * buffer of the appropriate size (8 * number of results) immediately
     681                 :            :  * following this structure.
     682                 :            :  */
     683                 :            : struct ethtool_test {
     684                 :            :         __u32   cmd;
     685                 :            :         __u32   flags;
     686                 :            :         __u32   reserved;
     687                 :            :         __u32   len;
     688                 :            :         __u64   data[0];
     689                 :            : };
     690                 :            : 
     691                 :            : /**
     692                 :            :  * struct ethtool_stats - device-specific statistics
     693                 :            :  * @cmd: Command number = %ETHTOOL_GSTATS
     694                 :            :  * @n_stats: On return, the number of statistics
     695                 :            :  * @data: Array of statistics
     696                 :            :  *
     697                 :            :  * Users must use %ETHTOOL_GSSET_INFO or %ETHTOOL_GDRVINFO to find the
     698                 :            :  * number of statistics that will be returned.  They must allocate a
     699                 :            :  * buffer of the appropriate size (8 * number of statistics)
     700                 :            :  * immediately following this structure.
     701                 :            :  */
     702                 :            : struct ethtool_stats {
     703                 :            :         __u32   cmd;
     704                 :            :         __u32   n_stats;
     705                 :            :         __u64   data[0];
     706                 :            : };
     707                 :            : 
     708                 :            : /**
     709                 :            :  * struct ethtool_perm_addr - permanent hardware address
     710                 :            :  * @cmd: Command number = %ETHTOOL_GPERMADDR
     711                 :            :  * @size: On entry, the size of the buffer.  On return, the size of the
     712                 :            :  *      address.  The command fails if the buffer is too small.
     713                 :            :  * @data: Buffer for the address
     714                 :            :  *
     715                 :            :  * Users must allocate the buffer immediately following this structure.
     716                 :            :  * A buffer size of %MAX_ADDR_LEN should be sufficient for any address
     717                 :            :  * type.
     718                 :            :  */
     719                 :            : struct ethtool_perm_addr {
     720                 :            :         __u32   cmd;
     721                 :            :         __u32   size;
     722                 :            :         __u8    data[0];
     723                 :            : };
     724                 :            : 
     725                 :            : /* boolean flags controlling per-interface behavior characteristics.
     726                 :            :  * When reading, the flag indicates whether or not a certain behavior
     727                 :            :  * is enabled/present.  When writing, the flag indicates whether
     728                 :            :  * or not the driver should turn on (set) or off (clear) a behavior.
     729                 :            :  *
     730                 :            :  * Some behaviors may read-only (unconditionally absent or present).
     731                 :            :  * If such is the case, return EINVAL in the set-flags operation if the
     732                 :            :  * flag differs from the read-only value.
     733                 :            :  */
     734                 :            : enum ethtool_flags {
     735                 :            :         ETH_FLAG_TXVLAN         = (1 << 7),       /* TX VLAN offload enabled */
     736                 :            :         ETH_FLAG_RXVLAN         = (1 << 8),       /* RX VLAN offload enabled */
     737                 :            :         ETH_FLAG_LRO            = (1 << 15),      /* LRO is enabled */
     738                 :            :         ETH_FLAG_NTUPLE         = (1 << 27),      /* N-tuple filters enabled */
     739                 :            :         ETH_FLAG_RXHASH         = (1 << 28),
     740                 :            : };
     741                 :            : 
     742                 :            : /* The following structures are for supporting RX network flow
     743                 :            :  * classification and RX n-tuple configuration. Note, all multibyte
     744                 :            :  * fields, e.g., ip4src, ip4dst, psrc, pdst, spi, etc. are expected to
     745                 :            :  * be in network byte order.
     746                 :            :  */
     747                 :            : 
     748                 :            : /**
     749                 :            :  * struct ethtool_tcpip4_spec - flow specification for TCP/IPv4 etc.
     750                 :            :  * @ip4src: Source host
     751                 :            :  * @ip4dst: Destination host
     752                 :            :  * @psrc: Source port
     753                 :            :  * @pdst: Destination port
     754                 :            :  * @tos: Type-of-service
     755                 :            :  *
     756                 :            :  * This can be used to specify a TCP/IPv4, UDP/IPv4 or SCTP/IPv4 flow.
     757                 :            :  */
     758                 :            : struct ethtool_tcpip4_spec {
     759                 :            :         __be32  ip4src;
     760                 :            :         __be32  ip4dst;
     761                 :            :         __be16  psrc;
     762                 :            :         __be16  pdst;
     763                 :            :         __u8    tos;
     764                 :            : };
     765                 :            : 
     766                 :            : /**
     767                 :            :  * struct ethtool_ah_espip4_spec - flow specification for IPsec/IPv4
     768                 :            :  * @ip4src: Source host
     769                 :            :  * @ip4dst: Destination host
     770                 :            :  * @spi: Security parameters index
     771                 :            :  * @tos: Type-of-service
     772                 :            :  *
     773                 :            :  * This can be used to specify an IPsec transport or tunnel over IPv4.
     774                 :            :  */
     775                 :            : struct ethtool_ah_espip4_spec {
     776                 :            :         __be32  ip4src;
     777                 :            :         __be32  ip4dst;
     778                 :            :         __be32  spi;
     779                 :            :         __u8    tos;
     780                 :            : };
     781                 :            : 
     782                 :            : #define ETH_RX_NFC_IP4  1
     783                 :            : 
     784                 :            : /**
     785                 :            :  * struct ethtool_usrip4_spec - general flow specification for IPv4
     786                 :            :  * @ip4src: Source host
     787                 :            :  * @ip4dst: Destination host
     788                 :            :  * @l4_4_bytes: First 4 bytes of transport (layer 4) header
     789                 :            :  * @tos: Type-of-service
     790                 :            :  * @ip_ver: Value must be %ETH_RX_NFC_IP4; mask must be 0
     791                 :            :  * @proto: Transport protocol number; mask must be 0
     792                 :            :  */
     793                 :            : struct ethtool_usrip4_spec {
     794                 :            :         __be32  ip4src;
     795                 :            :         __be32  ip4dst;
     796                 :            :         __be32  l4_4_bytes;
     797                 :            :         __u8    tos;
     798                 :            :         __u8    ip_ver;
     799                 :            :         __u8    proto;
     800                 :            : };
     801                 :            : 
     802                 :            : /**
     803                 :            :  * struct ethtool_tcpip6_spec - flow specification for TCP/IPv6 etc.
     804                 :            :  * @ip6src: Source host
     805                 :            :  * @ip6dst: Destination host
     806                 :            :  * @psrc: Source port
     807                 :            :  * @pdst: Destination port
     808                 :            :  * @tclass: Traffic Class
     809                 :            :  *
     810                 :            :  * This can be used to specify a TCP/IPv6, UDP/IPv6 or SCTP/IPv6 flow.
     811                 :            :  */
     812                 :            : struct ethtool_tcpip6_spec {
     813                 :            :         __be32  ip6src[4];
     814                 :            :         __be32  ip6dst[4];
     815                 :            :         __be16  psrc;
     816                 :            :         __be16  pdst;
     817                 :            :         __u8    tclass;
     818                 :            : };
     819                 :            : 
     820                 :            : /**
     821                 :            :  * struct ethtool_ah_espip6_spec - flow specification for IPsec/IPv6
     822                 :            :  * @ip6src: Source host
     823                 :            :  * @ip6dst: Destination host
     824                 :            :  * @spi: Security parameters index
     825                 :            :  * @tclass: Traffic Class
     826                 :            :  *
     827                 :            :  * This can be used to specify an IPsec transport or tunnel over IPv6.
     828                 :            :  */
     829                 :            : struct ethtool_ah_espip6_spec {
     830                 :            :         __be32  ip6src[4];
     831                 :            :         __be32  ip6dst[4];
     832                 :            :         __be32  spi;
     833                 :            :         __u8    tclass;
     834                 :            : };
     835                 :            : 
     836                 :            : /**
     837                 :            :  * struct ethtool_usrip6_spec - general flow specification for IPv6
     838                 :            :  * @ip6src: Source host
     839                 :            :  * @ip6dst: Destination host
     840                 :            :  * @l4_4_bytes: First 4 bytes of transport (layer 4) header
     841                 :            :  * @tclass: Traffic Class
     842                 :            :  * @l4_proto: Transport protocol number (nexthdr after any Extension Headers)
     843                 :            :  */
     844                 :            : struct ethtool_usrip6_spec {
     845                 :            :         __be32  ip6src[4];
     846                 :            :         __be32  ip6dst[4];
     847                 :            :         __be32  l4_4_bytes;
     848                 :            :         __u8    tclass;
     849                 :            :         __u8    l4_proto;
     850                 :            : };
     851                 :            : 
     852                 :            : union ethtool_flow_union {
     853                 :            :         struct ethtool_tcpip4_spec              tcp_ip4_spec;
     854                 :            :         struct ethtool_tcpip4_spec              udp_ip4_spec;
     855                 :            :         struct ethtool_tcpip4_spec              sctp_ip4_spec;
     856                 :            :         struct ethtool_ah_espip4_spec           ah_ip4_spec;
     857                 :            :         struct ethtool_ah_espip4_spec           esp_ip4_spec;
     858                 :            :         struct ethtool_usrip4_spec              usr_ip4_spec;
     859                 :            :         struct ethtool_tcpip6_spec              tcp_ip6_spec;
     860                 :            :         struct ethtool_tcpip6_spec              udp_ip6_spec;
     861                 :            :         struct ethtool_tcpip6_spec              sctp_ip6_spec;
     862                 :            :         struct ethtool_ah_espip6_spec           ah_ip6_spec;
     863                 :            :         struct ethtool_ah_espip6_spec           esp_ip6_spec;
     864                 :            :         struct ethtool_usrip6_spec              usr_ip6_spec;
     865                 :            :         struct ethhdr                           ether_spec;
     866                 :            :         __u8                                    hdata[52];
     867                 :            : };
     868                 :            : 
     869                 :            : /**
     870                 :            :  * struct ethtool_flow_ext - additional RX flow fields
     871                 :            :  * @h_dest: destination MAC address
     872                 :            :  * @vlan_etype: VLAN EtherType
     873                 :            :  * @vlan_tci: VLAN tag control information
     874                 :            :  * @data: user defined data
     875                 :            :  *
     876                 :            :  * Note, @vlan_etype, @vlan_tci, and @data are only valid if %FLOW_EXT
     877                 :            :  * is set in &struct ethtool_rx_flow_spec @flow_type.
     878                 :            :  * @h_dest is valid if %FLOW_MAC_EXT is set.
     879                 :            :  */
     880                 :            : struct ethtool_flow_ext {
     881                 :            :         __u8            padding[2];
     882                 :            :         unsigned char   h_dest[ETH_ALEN];
     883                 :            :         __be16          vlan_etype;
     884                 :            :         __be16          vlan_tci;
     885                 :            :         __be32          data[2];
     886                 :            : };
     887                 :            : 
     888                 :            : /**
     889                 :            :  * struct ethtool_rx_flow_spec - classification rule for RX flows
     890                 :            :  * @flow_type: Type of match to perform, e.g. %TCP_V4_FLOW
     891                 :            :  * @h_u: Flow fields to match (dependent on @flow_type)
     892                 :            :  * @h_ext: Additional fields to match
     893                 :            :  * @m_u: Masks for flow field bits to be matched
     894                 :            :  * @m_ext: Masks for additional field bits to be matched
     895                 :            :  *      Note, all additional fields must be ignored unless @flow_type
     896                 :            :  *      includes the %FLOW_EXT or %FLOW_MAC_EXT flag
     897                 :            :  *      (see &struct ethtool_flow_ext description).
     898                 :            :  * @ring_cookie: RX ring/queue index to deliver to, or %RX_CLS_FLOW_DISC
     899                 :            :  *      if packets should be discarded, or %RX_CLS_FLOW_WAKE if the
     900                 :            :  *      packets should be used for Wake-on-LAN with %WAKE_FILTER
     901                 :            :  * @location: Location of rule in the table.  Locations must be
     902                 :            :  *      numbered such that a flow matching multiple rules will be
     903                 :            :  *      classified according to the first (lowest numbered) rule.
     904                 :            :  */
     905                 :            : struct ethtool_rx_flow_spec {
     906                 :            :         __u32           flow_type;
     907                 :            :         union ethtool_flow_union h_u;
     908                 :            :         struct ethtool_flow_ext h_ext;
     909                 :            :         union ethtool_flow_union m_u;
     910                 :            :         struct ethtool_flow_ext m_ext;
     911                 :            :         __u64           ring_cookie;
     912                 :            :         __u32           location;
     913                 :            : };
     914                 :            : 
     915                 :            : /* How rings are laid out when accessing virtual functions or
     916                 :            :  * offloaded queues is device specific. To allow users to do flow
     917                 :            :  * steering and specify these queues the ring cookie is partitioned
     918                 :            :  * into a 32bit queue index with an 8 bit virtual function id.
     919                 :            :  * This also leaves the 3bytes for further specifiers. It is possible
     920                 :            :  * future devices may support more than 256 virtual functions if
     921                 :            :  * devices start supporting PCIe w/ARI. However at the moment I
     922                 :            :  * do not know of any devices that support this so I do not reserve
     923                 :            :  * space for this at this time. If a future patch consumes the next
     924                 :            :  * byte it should be aware of this possibility.
     925                 :            :  */
     926                 :            : #define ETHTOOL_RX_FLOW_SPEC_RING       0x00000000FFFFFFFFLL
     927                 :            : #define ETHTOOL_RX_FLOW_SPEC_RING_VF    0x000000FF00000000LL
     928                 :            : #define ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF 32
     929                 :            : static inline __u64 ethtool_get_flow_spec_ring(__u64 ring_cookie)
     930                 :            : {
     931                 :          0 :         return ETHTOOL_RX_FLOW_SPEC_RING & ring_cookie;
     932                 :            : }
     933                 :            : 
     934                 :            : static inline __u64 ethtool_get_flow_spec_ring_vf(__u64 ring_cookie)
     935                 :            : {
     936                 :          0 :         return (ETHTOOL_RX_FLOW_SPEC_RING_VF & ring_cookie) >>
     937                 :            :                                 ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
     938                 :            : }
     939                 :            : 
     940                 :            : /**
     941                 :            :  * struct ethtool_rxnfc - command to get or set RX flow classification rules
     942                 :            :  * @cmd: Specific command number - %ETHTOOL_GRXFH, %ETHTOOL_SRXFH,
     943                 :            :  *      %ETHTOOL_GRXRINGS, %ETHTOOL_GRXCLSRLCNT, %ETHTOOL_GRXCLSRULE,
     944                 :            :  *      %ETHTOOL_GRXCLSRLALL, %ETHTOOL_SRXCLSRLDEL or %ETHTOOL_SRXCLSRLINS
     945                 :            :  * @flow_type: Type of flow to be affected, e.g. %TCP_V4_FLOW
     946                 :            :  * @data: Command-dependent value
     947                 :            :  * @fs: Flow classification rule
     948                 :            :  * @rss_context: RSS context to be affected
     949                 :            :  * @rule_cnt: Number of rules to be affected
     950                 :            :  * @rule_locs: Array of used rule locations
     951                 :            :  *
     952                 :            :  * For %ETHTOOL_GRXFH and %ETHTOOL_SRXFH, @data is a bitmask indicating
     953                 :            :  * the fields included in the flow hash, e.g. %RXH_IP_SRC.  The following
     954                 :            :  * structure fields must not be used, except that if @flow_type includes
     955                 :            :  * the %FLOW_RSS flag, then @rss_context determines which RSS context to
     956                 :            :  * act on.
     957                 :            :  *
     958                 :            :  * For %ETHTOOL_GRXRINGS, @data is set to the number of RX rings/queues
     959                 :            :  * on return.
     960                 :            :  *
     961                 :            :  * For %ETHTOOL_GRXCLSRLCNT, @rule_cnt is set to the number of defined
     962                 :            :  * rules on return.  If @data is non-zero on return then it is the
     963                 :            :  * size of the rule table, plus the flag %RX_CLS_LOC_SPECIAL if the
     964                 :            :  * driver supports any special location values.  If that flag is not
     965                 :            :  * set in @data then special location values should not be used.
     966                 :            :  *
     967                 :            :  * For %ETHTOOL_GRXCLSRULE, @fs.@location specifies the location of an
     968                 :            :  * existing rule on entry and @fs contains the rule on return; if
     969                 :            :  * @fs.@flow_type includes the %FLOW_RSS flag, then @rss_context is
     970                 :            :  * filled with the RSS context ID associated with the rule.
     971                 :            :  *
     972                 :            :  * For %ETHTOOL_GRXCLSRLALL, @rule_cnt specifies the array size of the
     973                 :            :  * user buffer for @rule_locs on entry.  On return, @data is the size
     974                 :            :  * of the rule table, @rule_cnt is the number of defined rules, and
     975                 :            :  * @rule_locs contains the locations of the defined rules.  Drivers
     976                 :            :  * must use the second parameter to get_rxnfc() instead of @rule_locs.
     977                 :            :  *
     978                 :            :  * For %ETHTOOL_SRXCLSRLINS, @fs specifies the rule to add or update.
     979                 :            :  * @fs.@location either specifies the location to use or is a special
     980                 :            :  * location value with %RX_CLS_LOC_SPECIAL flag set.  On return,
     981                 :            :  * @fs.@location is the actual rule location.  If @fs.@flow_type
     982                 :            :  * includes the %FLOW_RSS flag, @rss_context is the RSS context ID to
     983                 :            :  * use for flow spreading traffic which matches this rule.  The value
     984                 :            :  * from the rxfh indirection table will be added to @fs.@ring_cookie
     985                 :            :  * to choose which ring to deliver to.
     986                 :            :  *
     987                 :            :  * For %ETHTOOL_SRXCLSRLDEL, @fs.@location specifies the location of an
     988                 :            :  * existing rule on entry.
     989                 :            :  *
     990                 :            :  * A driver supporting the special location values for
     991                 :            :  * %ETHTOOL_SRXCLSRLINS may add the rule at any suitable unused
     992                 :            :  * location, and may remove a rule at a later location (lower
     993                 :            :  * priority) that matches exactly the same set of flows.  The special
     994                 :            :  * values are %RX_CLS_LOC_ANY, selecting any location;
     995                 :            :  * %RX_CLS_LOC_FIRST, selecting the first suitable location (maximum
     996                 :            :  * priority); and %RX_CLS_LOC_LAST, selecting the last suitable
     997                 :            :  * location (minimum priority).  Additional special values may be
     998                 :            :  * defined in future and drivers must return -%EINVAL for any
     999                 :            :  * unrecognised value.
    1000                 :            :  */
    1001                 :            : struct ethtool_rxnfc {
    1002                 :            :         __u32                           cmd;
    1003                 :            :         __u32                           flow_type;
    1004                 :            :         __u64                           data;
    1005                 :            :         struct ethtool_rx_flow_spec     fs;
    1006                 :            :         union {
    1007                 :            :                 __u32                   rule_cnt;
    1008                 :            :                 __u32                   rss_context;
    1009                 :            :         };
    1010                 :            :         __u32                           rule_locs[0];
    1011                 :            : };
    1012                 :            : 
    1013                 :            : 
    1014                 :            : /**
    1015                 :            :  * struct ethtool_rxfh_indir - command to get or set RX flow hash indirection
    1016                 :            :  * @cmd: Specific command number - %ETHTOOL_GRXFHINDIR or %ETHTOOL_SRXFHINDIR
    1017                 :            :  * @size: On entry, the array size of the user buffer, which may be zero.
    1018                 :            :  *      On return from %ETHTOOL_GRXFHINDIR, the array size of the hardware
    1019                 :            :  *      indirection table.
    1020                 :            :  * @ring_index: RX ring/queue index for each hash value
    1021                 :            :  *
    1022                 :            :  * For %ETHTOOL_GRXFHINDIR, a @size of zero means that only the size
    1023                 :            :  * should be returned.  For %ETHTOOL_SRXFHINDIR, a @size of zero means
    1024                 :            :  * the table should be reset to default values.  This last feature
    1025                 :            :  * is not supported by the original implementations.
    1026                 :            :  */
    1027                 :            : struct ethtool_rxfh_indir {
    1028                 :            :         __u32   cmd;
    1029                 :            :         __u32   size;
    1030                 :            :         __u32   ring_index[0];
    1031                 :            : };
    1032                 :            : 
    1033                 :            : /**
    1034                 :            :  * struct ethtool_rxfh - command to get/set RX flow hash indir or/and hash key.
    1035                 :            :  * @cmd: Specific command number - %ETHTOOL_GRSSH or %ETHTOOL_SRSSH
    1036                 :            :  * @rss_context: RSS context identifier.  Context 0 is the default for normal
    1037                 :            :  *      traffic; other contexts can be referenced as the destination for RX flow
    1038                 :            :  *      classification rules.  %ETH_RXFH_CONTEXT_ALLOC is used with command
    1039                 :            :  *      %ETHTOOL_SRSSH to allocate a new RSS context; on return this field will
    1040                 :            :  *      contain the ID of the newly allocated context.
    1041                 :            :  * @indir_size: On entry, the array size of the user buffer for the
    1042                 :            :  *      indirection table, which may be zero, or (for %ETHTOOL_SRSSH),
    1043                 :            :  *      %ETH_RXFH_INDIR_NO_CHANGE.  On return from %ETHTOOL_GRSSH,
    1044                 :            :  *      the array size of the hardware indirection table.
    1045                 :            :  * @key_size: On entry, the array size of the user buffer for the hash key,
    1046                 :            :  *      which may be zero.  On return from %ETHTOOL_GRSSH, the size of the
    1047                 :            :  *      hardware hash key.
    1048                 :            :  * @hfunc: Defines the current RSS hash function used by HW (or to be set to).
    1049                 :            :  *      Valid values are one of the %ETH_RSS_HASH_*.
    1050                 :            :  * @rsvd:       Reserved for future extensions.
    1051                 :            :  * @rss_config: RX ring/queue index for each hash value i.e., indirection table
    1052                 :            :  *      of @indir_size __u32 elements, followed by hash key of @key_size
    1053                 :            :  *      bytes.
    1054                 :            :  *
    1055                 :            :  * For %ETHTOOL_GRSSH, a @indir_size and key_size of zero means that only the
    1056                 :            :  * size should be returned.  For %ETHTOOL_SRSSH, an @indir_size of
    1057                 :            :  * %ETH_RXFH_INDIR_NO_CHANGE means that indir table setting is not requested
    1058                 :            :  * and a @indir_size of zero means the indir table should be reset to default
    1059                 :            :  * values (if @rss_context == 0) or that the RSS context should be deleted.
    1060                 :            :  * An hfunc of zero means that hash function setting is not requested.
    1061                 :            :  */
    1062                 :            : struct ethtool_rxfh {
    1063                 :            :         __u32   cmd;
    1064                 :            :         __u32   rss_context;
    1065                 :            :         __u32   indir_size;
    1066                 :            :         __u32   key_size;
    1067                 :            :         __u8    hfunc;
    1068                 :            :         __u8    rsvd8[3];
    1069                 :            :         __u32   rsvd32;
    1070                 :            :         __u32   rss_config[0];
    1071                 :            : };
    1072                 :            : #define ETH_RXFH_CONTEXT_ALLOC          0xffffffff
    1073                 :            : #define ETH_RXFH_INDIR_NO_CHANGE        0xffffffff
    1074                 :            : 
    1075                 :            : /**
    1076                 :            :  * struct ethtool_rx_ntuple_flow_spec - specification for RX flow filter
    1077                 :            :  * @flow_type: Type of match to perform, e.g. %TCP_V4_FLOW
    1078                 :            :  * @h_u: Flow field values to match (dependent on @flow_type)
    1079                 :            :  * @m_u: Masks for flow field value bits to be ignored
    1080                 :            :  * @vlan_tag: VLAN tag to match
    1081                 :            :  * @vlan_tag_mask: Mask for VLAN tag bits to be ignored
    1082                 :            :  * @data: Driver-dependent data to match
    1083                 :            :  * @data_mask: Mask for driver-dependent data bits to be ignored
    1084                 :            :  * @action: RX ring/queue index to deliver to (non-negative) or other action
    1085                 :            :  *      (negative, e.g. %ETHTOOL_RXNTUPLE_ACTION_DROP)
    1086                 :            :  *
    1087                 :            :  * For flow types %TCP_V4_FLOW, %UDP_V4_FLOW and %SCTP_V4_FLOW, where
    1088                 :            :  * a field value and mask are both zero this is treated as if all mask
    1089                 :            :  * bits are set i.e. the field is ignored.
    1090                 :            :  */
    1091                 :            : struct ethtool_rx_ntuple_flow_spec {
    1092                 :            :         __u32            flow_type;
    1093                 :            :         union {
    1094                 :            :                 struct ethtool_tcpip4_spec              tcp_ip4_spec;
    1095                 :            :                 struct ethtool_tcpip4_spec              udp_ip4_spec;
    1096                 :            :                 struct ethtool_tcpip4_spec              sctp_ip4_spec;
    1097                 :            :                 struct ethtool_ah_espip4_spec           ah_ip4_spec;
    1098                 :            :                 struct ethtool_ah_espip4_spec           esp_ip4_spec;
    1099                 :            :                 struct ethtool_usrip4_spec              usr_ip4_spec;
    1100                 :            :                 struct ethhdr                           ether_spec;
    1101                 :            :                 __u8                                    hdata[72];
    1102                 :            :         } h_u, m_u;
    1103                 :            : 
    1104                 :            :         __u16           vlan_tag;
    1105                 :            :         __u16           vlan_tag_mask;
    1106                 :            :         __u64           data;
    1107                 :            :         __u64           data_mask;
    1108                 :            : 
    1109                 :            :         __s32           action;
    1110                 :            : #define ETHTOOL_RXNTUPLE_ACTION_DROP    (-1)    /* drop packet */
    1111                 :            : #define ETHTOOL_RXNTUPLE_ACTION_CLEAR   (-2)    /* clear filter */
    1112                 :            : };
    1113                 :            : 
    1114                 :            : /**
    1115                 :            :  * struct ethtool_rx_ntuple - command to set or clear RX flow filter
    1116                 :            :  * @cmd: Command number - %ETHTOOL_SRXNTUPLE
    1117                 :            :  * @fs: Flow filter specification
    1118                 :            :  */
    1119                 :            : struct ethtool_rx_ntuple {
    1120                 :            :         __u32                                   cmd;
    1121                 :            :         struct ethtool_rx_ntuple_flow_spec      fs;
    1122                 :            : };
    1123                 :            : 
    1124                 :            : #define ETHTOOL_FLASH_MAX_FILENAME      128
    1125                 :            : enum ethtool_flash_op_type {
    1126                 :            :         ETHTOOL_FLASH_ALL_REGIONS       = 0,
    1127                 :            : };
    1128                 :            : 
    1129                 :            : /* for passing firmware flashing related parameters */
    1130                 :            : struct ethtool_flash {
    1131                 :            :         __u32   cmd;
    1132                 :            :         __u32   region;
    1133                 :            :         char    data[ETHTOOL_FLASH_MAX_FILENAME];
    1134                 :            : };
    1135                 :            : 
    1136                 :            : /**
    1137                 :            :  * struct ethtool_dump - used for retrieving, setting device dump
    1138                 :            :  * @cmd: Command number - %ETHTOOL_GET_DUMP_FLAG, %ETHTOOL_GET_DUMP_DATA, or
    1139                 :            :  *      %ETHTOOL_SET_DUMP
    1140                 :            :  * @version: FW version of the dump, filled in by driver
    1141                 :            :  * @flag: driver dependent flag for dump setting, filled in by driver during
    1142                 :            :  *        get and filled in by ethtool for set operation.
    1143                 :            :  *        flag must be initialized by macro ETH_FW_DUMP_DISABLE value when
    1144                 :            :  *        firmware dump is disabled.
    1145                 :            :  * @len: length of dump data, used as the length of the user buffer on entry to
    1146                 :            :  *       %ETHTOOL_GET_DUMP_DATA and this is returned as dump length by driver
    1147                 :            :  *       for %ETHTOOL_GET_DUMP_FLAG command
    1148                 :            :  * @data: data collected for get dump data operation
    1149                 :            :  */
    1150                 :            : struct ethtool_dump {
    1151                 :            :         __u32   cmd;
    1152                 :            :         __u32   version;
    1153                 :            :         __u32   flag;
    1154                 :            :         __u32   len;
    1155                 :            :         __u8    data[0];
    1156                 :            : };
    1157                 :            : 
    1158                 :            : #define ETH_FW_DUMP_DISABLE 0
    1159                 :            : 
    1160                 :            : /* for returning and changing feature sets */
    1161                 :            : 
    1162                 :            : /**
    1163                 :            :  * struct ethtool_get_features_block - block with state of 32 features
    1164                 :            :  * @available: mask of changeable features
    1165                 :            :  * @requested: mask of features requested to be enabled if possible
    1166                 :            :  * @active: mask of currently enabled features
    1167                 :            :  * @never_changed: mask of features not changeable for any device
    1168                 :            :  */
    1169                 :            : struct ethtool_get_features_block {
    1170                 :            :         __u32   available;
    1171                 :            :         __u32   requested;
    1172                 :            :         __u32   active;
    1173                 :            :         __u32   never_changed;
    1174                 :            : };
    1175                 :            : 
    1176                 :            : /**
    1177                 :            :  * struct ethtool_gfeatures - command to get state of device's features
    1178                 :            :  * @cmd: command number = %ETHTOOL_GFEATURES
    1179                 :            :  * @size: On entry, the number of elements in the features[] array;
    1180                 :            :  *      on return, the number of elements in features[] needed to hold
    1181                 :            :  *      all features
    1182                 :            :  * @features: state of features
    1183                 :            :  */
    1184                 :            : struct ethtool_gfeatures {
    1185                 :            :         __u32   cmd;
    1186                 :            :         __u32   size;
    1187                 :            :         struct ethtool_get_features_block features[0];
    1188                 :            : };
    1189                 :            : 
    1190                 :            : /**
    1191                 :            :  * struct ethtool_set_features_block - block with request for 32 features
    1192                 :            :  * @valid: mask of features to be changed
    1193                 :            :  * @requested: values of features to be changed
    1194                 :            :  */
    1195                 :            : struct ethtool_set_features_block {
    1196                 :            :         __u32   valid;
    1197                 :            :         __u32   requested;
    1198                 :            : };
    1199                 :            : 
    1200                 :            : /**
    1201                 :            :  * struct ethtool_sfeatures - command to request change in device's features
    1202                 :            :  * @cmd: command number = %ETHTOOL_SFEATURES
    1203                 :            :  * @size: array size of the features[] array
    1204                 :            :  * @features: feature change masks
    1205                 :            :  */
    1206                 :            : struct ethtool_sfeatures {
    1207                 :            :         __u32   cmd;
    1208                 :            :         __u32   size;
    1209                 :            :         struct ethtool_set_features_block features[0];
    1210                 :            : };
    1211                 :            : 
    1212                 :            : /**
    1213                 :            :  * struct ethtool_ts_info - holds a device's timestamping and PHC association
    1214                 :            :  * @cmd: command number = %ETHTOOL_GET_TS_INFO
    1215                 :            :  * @so_timestamping: bit mask of the sum of the supported SO_TIMESTAMPING flags
    1216                 :            :  * @phc_index: device index of the associated PHC, or -1 if there is none
    1217                 :            :  * @tx_types: bit mask of the supported hwtstamp_tx_types enumeration values
    1218                 :            :  * @rx_filters: bit mask of the supported hwtstamp_rx_filters enumeration values
    1219                 :            :  *
    1220                 :            :  * The bits in the 'tx_types' and 'rx_filters' fields correspond to
    1221                 :            :  * the 'hwtstamp_tx_types' and 'hwtstamp_rx_filters' enumeration values,
    1222                 :            :  * respectively.  For example, if the device supports HWTSTAMP_TX_ON,
    1223                 :            :  * then (1 << HWTSTAMP_TX_ON) in 'tx_types' will be set.
    1224                 :            :  *
    1225                 :            :  * Drivers should only report the filters they actually support without
    1226                 :            :  * upscaling in the SIOCSHWTSTAMP ioctl. If the SIOCSHWSTAMP request for
    1227                 :            :  * HWTSTAMP_FILTER_V1_SYNC is supported by HWTSTAMP_FILTER_V1_EVENT, then the
    1228                 :            :  * driver should only report HWTSTAMP_FILTER_V1_EVENT in this op.
    1229                 :            :  */
    1230                 :            : struct ethtool_ts_info {
    1231                 :            :         __u32   cmd;
    1232                 :            :         __u32   so_timestamping;
    1233                 :            :         __s32   phc_index;
    1234                 :            :         __u32   tx_types;
    1235                 :            :         __u32   tx_reserved[3];
    1236                 :            :         __u32   rx_filters;
    1237                 :            :         __u32   rx_reserved[3];
    1238                 :            : };
    1239                 :            : 
    1240                 :            : /*
    1241                 :            :  * %ETHTOOL_SFEATURES changes features present in features[].valid to the
    1242                 :            :  * values of corresponding bits in features[].requested. Bits in .requested
    1243                 :            :  * not set in .valid or not changeable are ignored.
    1244                 :            :  *
    1245                 :            :  * Returns %EINVAL when .valid contains undefined or never-changeable bits
    1246                 :            :  * or size is not equal to required number of features words (32-bit blocks).
    1247                 :            :  * Returns >= 0 if request was completed; bits set in the value mean:
    1248                 :            :  *   %ETHTOOL_F_UNSUPPORTED - there were bits set in .valid that are not
    1249                 :            :  *      changeable (not present in %ETHTOOL_GFEATURES' features[].available)
    1250                 :            :  *      those bits were ignored.
    1251                 :            :  *   %ETHTOOL_F_WISH - some or all changes requested were recorded but the
    1252                 :            :  *      resulting state of bits masked by .valid is not equal to .requested.
    1253                 :            :  *      Probably there are other device-specific constraints on some features
    1254                 :            :  *      in the set. When %ETHTOOL_F_UNSUPPORTED is set, .valid is considered
    1255                 :            :  *      here as though ignored bits were cleared.
    1256                 :            :  *   %ETHTOOL_F_COMPAT - some or all changes requested were made by calling
    1257                 :            :  *      compatibility functions. Requested offload state cannot be properly
    1258                 :            :  *      managed by kernel.
    1259                 :            :  *
    1260                 :            :  * Meaning of bits in the masks are obtained by %ETHTOOL_GSSET_INFO (number of
    1261                 :            :  * bits in the arrays - always multiple of 32) and %ETHTOOL_GSTRINGS commands
    1262                 :            :  * for ETH_SS_FEATURES string set. First entry in the table corresponds to least
    1263                 :            :  * significant bit in features[0] fields. Empty strings mark undefined features.
    1264                 :            :  */
    1265                 :            : enum ethtool_sfeatures_retval_bits {
    1266                 :            :         ETHTOOL_F_UNSUPPORTED__BIT,
    1267                 :            :         ETHTOOL_F_WISH__BIT,
    1268                 :            :         ETHTOOL_F_COMPAT__BIT,
    1269                 :            : };
    1270                 :            : 
    1271                 :            : #define ETHTOOL_F_UNSUPPORTED   (1 << ETHTOOL_F_UNSUPPORTED__BIT)
    1272                 :            : #define ETHTOOL_F_WISH          (1 << ETHTOOL_F_WISH__BIT)
    1273                 :            : #define ETHTOOL_F_COMPAT        (1 << ETHTOOL_F_COMPAT__BIT)
    1274                 :            : 
    1275                 :            : #define MAX_NUM_QUEUE           4096
    1276                 :            : 
    1277                 :            : /**
    1278                 :            :  * struct ethtool_per_queue_op - apply sub command to the queues in mask.
    1279                 :            :  * @cmd: ETHTOOL_PERQUEUE
    1280                 :            :  * @sub_command: the sub command which apply to each queues
    1281                 :            :  * @queue_mask: Bitmap of the queues which sub command apply to
    1282                 :            :  * @data: A complete command structure following for each of the queues addressed
    1283                 :            :  */
    1284                 :            : struct ethtool_per_queue_op {
    1285                 :            :         __u32   cmd;
    1286                 :            :         __u32   sub_command;
    1287                 :            :         __u32   queue_mask[__KERNEL_DIV_ROUND_UP(MAX_NUM_QUEUE, 32)];
    1288                 :            :         char    data[];
    1289                 :            : };
    1290                 :            : 
    1291                 :            : /**
    1292                 :            :  * struct ethtool_fecparam - Ethernet forward error correction(fec) parameters
    1293                 :            :  * @cmd: Command number = %ETHTOOL_GFECPARAM or %ETHTOOL_SFECPARAM
    1294                 :            :  * @active_fec: FEC mode which is active on porte
    1295                 :            :  * @fec: Bitmask of supported/configured FEC modes
    1296                 :            :  * @rsvd: Reserved for future extensions. i.e FEC bypass feature.
    1297                 :            :  *
    1298                 :            :  * Drivers should reject a non-zero setting of @autoneg when
    1299                 :            :  * autoneogotiation is disabled (or not supported) for the link.
    1300                 :            :  *
    1301                 :            :  */
    1302                 :            : struct ethtool_fecparam {
    1303                 :            :         __u32   cmd;
    1304                 :            :         /* bitmask of FEC modes */
    1305                 :            :         __u32   active_fec;
    1306                 :            :         __u32   fec;
    1307                 :            :         __u32   reserved;
    1308                 :            : };
    1309                 :            : 
    1310                 :            : /**
    1311                 :            :  * enum ethtool_fec_config_bits - flags definition of ethtool_fec_configuration
    1312                 :            :  * @ETHTOOL_FEC_NONE: FEC mode configuration is not supported
    1313                 :            :  * @ETHTOOL_FEC_AUTO: Default/Best FEC mode provided by driver
    1314                 :            :  * @ETHTOOL_FEC_OFF: No FEC Mode
    1315                 :            :  * @ETHTOOL_FEC_RS: Reed-Solomon Forward Error Detection mode
    1316                 :            :  * @ETHTOOL_FEC_BASER: Base-R/Reed-Solomon Forward Error Detection mode
    1317                 :            :  */
    1318                 :            : enum ethtool_fec_config_bits {
    1319                 :            :         ETHTOOL_FEC_NONE_BIT,
    1320                 :            :         ETHTOOL_FEC_AUTO_BIT,
    1321                 :            :         ETHTOOL_FEC_OFF_BIT,
    1322                 :            :         ETHTOOL_FEC_RS_BIT,
    1323                 :            :         ETHTOOL_FEC_BASER_BIT,
    1324                 :            : };
    1325                 :            : 
    1326                 :            : #define ETHTOOL_FEC_NONE                (1 << ETHTOOL_FEC_NONE_BIT)
    1327                 :            : #define ETHTOOL_FEC_AUTO                (1 << ETHTOOL_FEC_AUTO_BIT)
    1328                 :            : #define ETHTOOL_FEC_OFF                 (1 << ETHTOOL_FEC_OFF_BIT)
    1329                 :            : #define ETHTOOL_FEC_RS                  (1 << ETHTOOL_FEC_RS_BIT)
    1330                 :            : #define ETHTOOL_FEC_BASER               (1 << ETHTOOL_FEC_BASER_BIT)
    1331                 :            : 
    1332                 :            : /* CMDs currently supported */
    1333                 :            : #define ETHTOOL_GSET            0x00000001 /* DEPRECATED, Get settings.
    1334                 :            :                                             * Please use ETHTOOL_GLINKSETTINGS
    1335                 :            :                                             */
    1336                 :            : #define ETHTOOL_SSET            0x00000002 /* DEPRECATED, Set settings.
    1337                 :            :                                             * Please use ETHTOOL_SLINKSETTINGS
    1338                 :            :                                             */
    1339                 :            : #define ETHTOOL_GDRVINFO        0x00000003 /* Get driver info. */
    1340                 :            : #define ETHTOOL_GREGS           0x00000004 /* Get NIC registers. */
    1341                 :            : #define ETHTOOL_GWOL            0x00000005 /* Get wake-on-lan options. */
    1342                 :            : #define ETHTOOL_SWOL            0x00000006 /* Set wake-on-lan options. */
    1343                 :            : #define ETHTOOL_GMSGLVL         0x00000007 /* Get driver message level */
    1344                 :            : #define ETHTOOL_SMSGLVL         0x00000008 /* Set driver msg level. */
    1345                 :            : #define ETHTOOL_NWAY_RST        0x00000009 /* Restart autonegotiation. */
    1346                 :            : /* Get link status for host, i.e. whether the interface *and* the
    1347                 :            :  * physical port (if there is one) are up (ethtool_value). */
    1348                 :            : #define ETHTOOL_GLINK           0x0000000a
    1349                 :            : #define ETHTOOL_GEEPROM         0x0000000b /* Get EEPROM data */
    1350                 :            : #define ETHTOOL_SEEPROM         0x0000000c /* Set EEPROM data. */
    1351                 :            : #define ETHTOOL_GCOALESCE       0x0000000e /* Get coalesce config */
    1352                 :            : #define ETHTOOL_SCOALESCE       0x0000000f /* Set coalesce config. */
    1353                 :            : #define ETHTOOL_GRINGPARAM      0x00000010 /* Get ring parameters */
    1354                 :            : #define ETHTOOL_SRINGPARAM      0x00000011 /* Set ring parameters. */
    1355                 :            : #define ETHTOOL_GPAUSEPARAM     0x00000012 /* Get pause parameters */
    1356                 :            : #define ETHTOOL_SPAUSEPARAM     0x00000013 /* Set pause parameters. */
    1357                 :            : #define ETHTOOL_GRXCSUM         0x00000014 /* Get RX hw csum enable (ethtool_value) */
    1358                 :            : #define ETHTOOL_SRXCSUM         0x00000015 /* Set RX hw csum enable (ethtool_value) */
    1359                 :            : #define ETHTOOL_GTXCSUM         0x00000016 /* Get TX hw csum enable (ethtool_value) */
    1360                 :            : #define ETHTOOL_STXCSUM         0x00000017 /* Set TX hw csum enable (ethtool_value) */
    1361                 :            : #define ETHTOOL_GSG             0x00000018 /* Get scatter-gather enable
    1362                 :            :                                             * (ethtool_value) */
    1363                 :            : #define ETHTOOL_SSG             0x00000019 /* Set scatter-gather enable
    1364                 :            :                                             * (ethtool_value). */
    1365                 :            : #define ETHTOOL_TEST            0x0000001a /* execute NIC self-test. */
    1366                 :            : #define ETHTOOL_GSTRINGS        0x0000001b /* get specified string set */
    1367                 :            : #define ETHTOOL_PHYS_ID         0x0000001c /* identify the NIC */
    1368                 :            : #define ETHTOOL_GSTATS          0x0000001d /* get NIC-specific statistics */
    1369                 :            : #define ETHTOOL_GTSO            0x0000001e /* Get TSO enable (ethtool_value) */
    1370                 :            : #define ETHTOOL_STSO            0x0000001f /* Set TSO enable (ethtool_value) */
    1371                 :            : #define ETHTOOL_GPERMADDR       0x00000020 /* Get permanent hardware address */
    1372                 :            : #define ETHTOOL_GUFO            0x00000021 /* Get UFO enable (ethtool_value) */
    1373                 :            : #define ETHTOOL_SUFO            0x00000022 /* Set UFO enable (ethtool_value) */
    1374                 :            : #define ETHTOOL_GGSO            0x00000023 /* Get GSO enable (ethtool_value) */
    1375                 :            : #define ETHTOOL_SGSO            0x00000024 /* Set GSO enable (ethtool_value) */
    1376                 :            : #define ETHTOOL_GFLAGS          0x00000025 /* Get flags bitmap(ethtool_value) */
    1377                 :            : #define ETHTOOL_SFLAGS          0x00000026 /* Set flags bitmap(ethtool_value) */
    1378                 :            : #define ETHTOOL_GPFLAGS         0x00000027 /* Get driver-private flags bitmap */
    1379                 :            : #define ETHTOOL_SPFLAGS         0x00000028 /* Set driver-private flags bitmap */
    1380                 :            : 
    1381                 :            : #define ETHTOOL_GRXFH           0x00000029 /* Get RX flow hash configuration */
    1382                 :            : #define ETHTOOL_SRXFH           0x0000002a /* Set RX flow hash configuration */
    1383                 :            : #define ETHTOOL_GGRO            0x0000002b /* Get GRO enable (ethtool_value) */
    1384                 :            : #define ETHTOOL_SGRO            0x0000002c /* Set GRO enable (ethtool_value) */
    1385                 :            : #define ETHTOOL_GRXRINGS        0x0000002d /* Get RX rings available for LB */
    1386                 :            : #define ETHTOOL_GRXCLSRLCNT     0x0000002e /* Get RX class rule count */
    1387                 :            : #define ETHTOOL_GRXCLSRULE      0x0000002f /* Get RX classification rule */
    1388                 :            : #define ETHTOOL_GRXCLSRLALL     0x00000030 /* Get all RX classification rule */
    1389                 :            : #define ETHTOOL_SRXCLSRLDEL     0x00000031 /* Delete RX classification rule */
    1390                 :            : #define ETHTOOL_SRXCLSRLINS     0x00000032 /* Insert RX classification rule */
    1391                 :            : #define ETHTOOL_FLASHDEV        0x00000033 /* Flash firmware to device */
    1392                 :            : #define ETHTOOL_RESET           0x00000034 /* Reset hardware */
    1393                 :            : #define ETHTOOL_SRXNTUPLE       0x00000035 /* Add an n-tuple filter to device */
    1394                 :            : #define ETHTOOL_GRXNTUPLE       0x00000036 /* deprecated */
    1395                 :            : #define ETHTOOL_GSSET_INFO      0x00000037 /* Get string set info */
    1396                 :            : #define ETHTOOL_GRXFHINDIR      0x00000038 /* Get RX flow hash indir'n table */
    1397                 :            : #define ETHTOOL_SRXFHINDIR      0x00000039 /* Set RX flow hash indir'n table */
    1398                 :            : 
    1399                 :            : #define ETHTOOL_GFEATURES       0x0000003a /* Get device offload settings */
    1400                 :            : #define ETHTOOL_SFEATURES       0x0000003b /* Change device offload settings */
    1401                 :            : #define ETHTOOL_GCHANNELS       0x0000003c /* Get no of channels */
    1402                 :            : #define ETHTOOL_SCHANNELS       0x0000003d /* Set no of channels */
    1403                 :            : #define ETHTOOL_SET_DUMP        0x0000003e /* Set dump settings */
    1404                 :            : #define ETHTOOL_GET_DUMP_FLAG   0x0000003f /* Get dump settings */
    1405                 :            : #define ETHTOOL_GET_DUMP_DATA   0x00000040 /* Get dump data */
    1406                 :            : #define ETHTOOL_GET_TS_INFO     0x00000041 /* Get time stamping and PHC info */
    1407                 :            : #define ETHTOOL_GMODULEINFO     0x00000042 /* Get plug-in module information */
    1408                 :            : #define ETHTOOL_GMODULEEEPROM   0x00000043 /* Get plug-in module eeprom */
    1409                 :            : #define ETHTOOL_GEEE            0x00000044 /* Get EEE settings */
    1410                 :            : #define ETHTOOL_SEEE            0x00000045 /* Set EEE settings */
    1411                 :            : 
    1412                 :            : #define ETHTOOL_GRSSH           0x00000046 /* Get RX flow hash configuration */
    1413                 :            : #define ETHTOOL_SRSSH           0x00000047 /* Set RX flow hash configuration */
    1414                 :            : #define ETHTOOL_GTUNABLE        0x00000048 /* Get tunable configuration */
    1415                 :            : #define ETHTOOL_STUNABLE        0x00000049 /* Set tunable configuration */
    1416                 :            : #define ETHTOOL_GPHYSTATS       0x0000004a /* get PHY-specific statistics */
    1417                 :            : 
    1418                 :            : #define ETHTOOL_PERQUEUE        0x0000004b /* Set per queue options */
    1419                 :            : 
    1420                 :            : #define ETHTOOL_GLINKSETTINGS   0x0000004c /* Get ethtool_link_settings */
    1421                 :            : #define ETHTOOL_SLINKSETTINGS   0x0000004d /* Set ethtool_link_settings */
    1422                 :            : #define ETHTOOL_PHY_GTUNABLE    0x0000004e /* Get PHY tunable configuration */
    1423                 :            : #define ETHTOOL_PHY_STUNABLE    0x0000004f /* Set PHY tunable configuration */
    1424                 :            : #define ETHTOOL_GFECPARAM       0x00000050 /* Get FEC settings */
    1425                 :            : #define ETHTOOL_SFECPARAM       0x00000051 /* Set FEC settings */
    1426                 :            : 
    1427                 :            : /* compatibility with older code */
    1428                 :            : #define SPARC_ETH_GSET          ETHTOOL_GSET
    1429                 :            : #define SPARC_ETH_SSET          ETHTOOL_SSET
    1430                 :            : 
    1431                 :            : /* Link mode bit indices */
    1432                 :            : enum ethtool_link_mode_bit_indices {
    1433                 :            :         ETHTOOL_LINK_MODE_10baseT_Half_BIT      = 0,
    1434                 :            :         ETHTOOL_LINK_MODE_10baseT_Full_BIT      = 1,
    1435                 :            :         ETHTOOL_LINK_MODE_100baseT_Half_BIT     = 2,
    1436                 :            :         ETHTOOL_LINK_MODE_100baseT_Full_BIT     = 3,
    1437                 :            :         ETHTOOL_LINK_MODE_1000baseT_Half_BIT    = 4,
    1438                 :            :         ETHTOOL_LINK_MODE_1000baseT_Full_BIT    = 5,
    1439                 :            :         ETHTOOL_LINK_MODE_Autoneg_BIT           = 6,
    1440                 :            :         ETHTOOL_LINK_MODE_TP_BIT                = 7,
    1441                 :            :         ETHTOOL_LINK_MODE_AUI_BIT               = 8,
    1442                 :            :         ETHTOOL_LINK_MODE_MII_BIT               = 9,
    1443                 :            :         ETHTOOL_LINK_MODE_FIBRE_BIT             = 10,
    1444                 :            :         ETHTOOL_LINK_MODE_BNC_BIT               = 11,
    1445                 :            :         ETHTOOL_LINK_MODE_10000baseT_Full_BIT   = 12,
    1446                 :            :         ETHTOOL_LINK_MODE_Pause_BIT             = 13,
    1447                 :            :         ETHTOOL_LINK_MODE_Asym_Pause_BIT        = 14,
    1448                 :            :         ETHTOOL_LINK_MODE_2500baseX_Full_BIT    = 15,
    1449                 :            :         ETHTOOL_LINK_MODE_Backplane_BIT         = 16,
    1450                 :            :         ETHTOOL_LINK_MODE_1000baseKX_Full_BIT   = 17,
    1451                 :            :         ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT = 18,
    1452                 :            :         ETHTOOL_LINK_MODE_10000baseKR_Full_BIT  = 19,
    1453                 :            :         ETHTOOL_LINK_MODE_10000baseR_FEC_BIT    = 20,
    1454                 :            :         ETHTOOL_LINK_MODE_20000baseMLD2_Full_BIT = 21,
    1455                 :            :         ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT = 22,
    1456                 :            :         ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT = 23,
    1457                 :            :         ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT = 24,
    1458                 :            :         ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT = 25,
    1459                 :            :         ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT = 26,
    1460                 :            :         ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT = 27,
    1461                 :            :         ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT = 28,
    1462                 :            :         ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT = 29,
    1463                 :            :         ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT = 30,
    1464                 :            :         ETHTOOL_LINK_MODE_25000baseCR_Full_BIT  = 31,
    1465                 :            : 
    1466                 :            :         /* Last allowed bit for __ETHTOOL_LINK_MODE_LEGACY_MASK is bit
    1467                 :            :          * 31. Please do NOT define any SUPPORTED_* or ADVERTISED_*
    1468                 :            :          * macro for bits > 31. The only way to use indices > 31 is to
    1469                 :            :          * use the new ETHTOOL_GLINKSETTINGS/ETHTOOL_SLINKSETTINGS API.
    1470                 :            :          */
    1471                 :            : 
    1472                 :            :         ETHTOOL_LINK_MODE_25000baseKR_Full_BIT  = 32,
    1473                 :            :         ETHTOOL_LINK_MODE_25000baseSR_Full_BIT  = 33,
    1474                 :            :         ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT = 34,
    1475                 :            :         ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT = 35,
    1476                 :            :         ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT        = 36,
    1477                 :            :         ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT        = 37,
    1478                 :            :         ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT        = 38,
    1479                 :            :         ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT    = 39,
    1480                 :            :         ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT         = 40,
    1481                 :            :         ETHTOOL_LINK_MODE_1000baseX_Full_BIT    = 41,
    1482                 :            :         ETHTOOL_LINK_MODE_10000baseCR_Full_BIT  = 42,
    1483                 :            :         ETHTOOL_LINK_MODE_10000baseSR_Full_BIT  = 43,
    1484                 :            :         ETHTOOL_LINK_MODE_10000baseLR_Full_BIT  = 44,
    1485                 :            :         ETHTOOL_LINK_MODE_10000baseLRM_Full_BIT = 45,
    1486                 :            :         ETHTOOL_LINK_MODE_10000baseER_Full_BIT  = 46,
    1487                 :            :         ETHTOOL_LINK_MODE_2500baseT_Full_BIT    = 47,
    1488                 :            :         ETHTOOL_LINK_MODE_5000baseT_Full_BIT    = 48,
    1489                 :            : 
    1490                 :            :         ETHTOOL_LINK_MODE_FEC_NONE_BIT  = 49,
    1491                 :            :         ETHTOOL_LINK_MODE_FEC_RS_BIT    = 50,
    1492                 :            :         ETHTOOL_LINK_MODE_FEC_BASER_BIT = 51,
    1493                 :            :         ETHTOOL_LINK_MODE_50000baseKR_Full_BIT           = 52,
    1494                 :            :         ETHTOOL_LINK_MODE_50000baseSR_Full_BIT           = 53,
    1495                 :            :         ETHTOOL_LINK_MODE_50000baseCR_Full_BIT           = 54,
    1496                 :            :         ETHTOOL_LINK_MODE_50000baseLR_ER_FR_Full_BIT     = 55,
    1497                 :            :         ETHTOOL_LINK_MODE_50000baseDR_Full_BIT           = 56,
    1498                 :            :         ETHTOOL_LINK_MODE_100000baseKR2_Full_BIT         = 57,
    1499                 :            :         ETHTOOL_LINK_MODE_100000baseSR2_Full_BIT         = 58,
    1500                 :            :         ETHTOOL_LINK_MODE_100000baseCR2_Full_BIT         = 59,
    1501                 :            :         ETHTOOL_LINK_MODE_100000baseLR2_ER2_FR2_Full_BIT = 60,
    1502                 :            :         ETHTOOL_LINK_MODE_100000baseDR2_Full_BIT         = 61,
    1503                 :            :         ETHTOOL_LINK_MODE_200000baseKR4_Full_BIT         = 62,
    1504                 :            :         ETHTOOL_LINK_MODE_200000baseSR4_Full_BIT         = 63,
    1505                 :            :         ETHTOOL_LINK_MODE_200000baseLR4_ER4_FR4_Full_BIT = 64,
    1506                 :            :         ETHTOOL_LINK_MODE_200000baseDR4_Full_BIT         = 65,
    1507                 :            :         ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT         = 66,
    1508                 :            :         ETHTOOL_LINK_MODE_100baseT1_Full_BIT             = 67,
    1509                 :            :         ETHTOOL_LINK_MODE_1000baseT1_Full_BIT            = 68,
    1510                 :            : 
    1511                 :            :         /* must be last entry */
    1512                 :            :         __ETHTOOL_LINK_MODE_MASK_NBITS
    1513                 :            : };
    1514                 :            : 
    1515                 :            : #define __ETHTOOL_LINK_MODE_LEGACY_MASK(base_name)      \
    1516                 :            :         (1UL << (ETHTOOL_LINK_MODE_ ## base_name ## _BIT))
    1517                 :            : 
    1518                 :            : /* DEPRECATED macros. Please migrate to
    1519                 :            :  * ETHTOOL_GLINKSETTINGS/ETHTOOL_SLINKSETTINGS API. Please do NOT
    1520                 :            :  * define any new SUPPORTED_* macro for bits > 31.
    1521                 :            :  */
    1522                 :            : #define SUPPORTED_10baseT_Half          __ETHTOOL_LINK_MODE_LEGACY_MASK(10baseT_Half)
    1523                 :            : #define SUPPORTED_10baseT_Full          __ETHTOOL_LINK_MODE_LEGACY_MASK(10baseT_Full)
    1524                 :            : #define SUPPORTED_100baseT_Half         __ETHTOOL_LINK_MODE_LEGACY_MASK(100baseT_Half)
    1525                 :            : #define SUPPORTED_100baseT_Full         __ETHTOOL_LINK_MODE_LEGACY_MASK(100baseT_Full)
    1526                 :            : #define SUPPORTED_1000baseT_Half        __ETHTOOL_LINK_MODE_LEGACY_MASK(1000baseT_Half)
    1527                 :            : #define SUPPORTED_1000baseT_Full        __ETHTOOL_LINK_MODE_LEGACY_MASK(1000baseT_Full)
    1528                 :            : #define SUPPORTED_Autoneg               __ETHTOOL_LINK_MODE_LEGACY_MASK(Autoneg)
    1529                 :            : #define SUPPORTED_TP                    __ETHTOOL_LINK_MODE_LEGACY_MASK(TP)
    1530                 :            : #define SUPPORTED_AUI                   __ETHTOOL_LINK_MODE_LEGACY_MASK(AUI)
    1531                 :            : #define SUPPORTED_MII                   __ETHTOOL_LINK_MODE_LEGACY_MASK(MII)
    1532                 :            : #define SUPPORTED_FIBRE                 __ETHTOOL_LINK_MODE_LEGACY_MASK(FIBRE)
    1533                 :            : #define SUPPORTED_BNC                   __ETHTOOL_LINK_MODE_LEGACY_MASK(BNC)
    1534                 :            : #define SUPPORTED_10000baseT_Full       __ETHTOOL_LINK_MODE_LEGACY_MASK(10000baseT_Full)
    1535                 :            : #define SUPPORTED_Pause                 __ETHTOOL_LINK_MODE_LEGACY_MASK(Pause)
    1536                 :            : #define SUPPORTED_Asym_Pause            __ETHTOOL_LINK_MODE_LEGACY_MASK(Asym_Pause)
    1537                 :            : #define SUPPORTED_2500baseX_Full        __ETHTOOL_LINK_MODE_LEGACY_MASK(2500baseX_Full)
    1538                 :            : #define SUPPORTED_Backplane             __ETHTOOL_LINK_MODE_LEGACY_MASK(Backplane)
    1539                 :            : #define SUPPORTED_1000baseKX_Full       __ETHTOOL_LINK_MODE_LEGACY_MASK(1000baseKX_Full)
    1540                 :            : #define SUPPORTED_10000baseKX4_Full     __ETHTOOL_LINK_MODE_LEGACY_MASK(10000baseKX4_Full)
    1541                 :            : #define SUPPORTED_10000baseKR_Full      __ETHTOOL_LINK_MODE_LEGACY_MASK(10000baseKR_Full)
    1542                 :            : #define SUPPORTED_10000baseR_FEC        __ETHTOOL_LINK_MODE_LEGACY_MASK(10000baseR_FEC)
    1543                 :            : #define SUPPORTED_20000baseMLD2_Full    __ETHTOOL_LINK_MODE_LEGACY_MASK(20000baseMLD2_Full)
    1544                 :            : #define SUPPORTED_20000baseKR2_Full     __ETHTOOL_LINK_MODE_LEGACY_MASK(20000baseKR2_Full)
    1545                 :            : #define SUPPORTED_40000baseKR4_Full     __ETHTOOL_LINK_MODE_LEGACY_MASK(40000baseKR4_Full)
    1546                 :            : #define SUPPORTED_40000baseCR4_Full     __ETHTOOL_LINK_MODE_LEGACY_MASK(40000baseCR4_Full)
    1547                 :            : #define SUPPORTED_40000baseSR4_Full     __ETHTOOL_LINK_MODE_LEGACY_MASK(40000baseSR4_Full)
    1548                 :            : #define SUPPORTED_40000baseLR4_Full     __ETHTOOL_LINK_MODE_LEGACY_MASK(40000baseLR4_Full)
    1549                 :            : #define SUPPORTED_56000baseKR4_Full     __ETHTOOL_LINK_MODE_LEGACY_MASK(56000baseKR4_Full)
    1550                 :            : #define SUPPORTED_56000baseCR4_Full     __ETHTOOL_LINK_MODE_LEGACY_MASK(56000baseCR4_Full)
    1551                 :            : #define SUPPORTED_56000baseSR4_Full     __ETHTOOL_LINK_MODE_LEGACY_MASK(56000baseSR4_Full)
    1552                 :            : #define SUPPORTED_56000baseLR4_Full     __ETHTOOL_LINK_MODE_LEGACY_MASK(56000baseLR4_Full)
    1553                 :            : /* Please do not define any new SUPPORTED_* macro for bits > 31, see
    1554                 :            :  * notice above.
    1555                 :            :  */
    1556                 :            : 
    1557                 :            : /*
    1558                 :            :  * DEPRECATED macros. Please migrate to
    1559                 :            :  * ETHTOOL_GLINKSETTINGS/ETHTOOL_SLINKSETTINGS API. Please do NOT
    1560                 :            :  * define any new ADERTISE_* macro for bits > 31.
    1561                 :            :  */
    1562                 :            : #define ADVERTISED_10baseT_Half         __ETHTOOL_LINK_MODE_LEGACY_MASK(10baseT_Half)
    1563                 :            : #define ADVERTISED_10baseT_Full         __ETHTOOL_LINK_MODE_LEGACY_MASK(10baseT_Full)
    1564                 :            : #define ADVERTISED_100baseT_Half        __ETHTOOL_LINK_MODE_LEGACY_MASK(100baseT_Half)
    1565                 :            : #define ADVERTISED_100baseT_Full        __ETHTOOL_LINK_MODE_LEGACY_MASK(100baseT_Full)
    1566                 :            : #define ADVERTISED_1000baseT_Half       __ETHTOOL_LINK_MODE_LEGACY_MASK(1000baseT_Half)
    1567                 :            : #define ADVERTISED_1000baseT_Full       __ETHTOOL_LINK_MODE_LEGACY_MASK(1000baseT_Full)
    1568                 :            : #define ADVERTISED_Autoneg              __ETHTOOL_LINK_MODE_LEGACY_MASK(Autoneg)
    1569                 :            : #define ADVERTISED_TP                   __ETHTOOL_LINK_MODE_LEGACY_MASK(TP)
    1570                 :            : #define ADVERTISED_AUI                  __ETHTOOL_LINK_MODE_LEGACY_MASK(AUI)
    1571                 :            : #define ADVERTISED_MII                  __ETHTOOL_LINK_MODE_LEGACY_MASK(MII)
    1572                 :            : #define ADVERTISED_FIBRE                __ETHTOOL_LINK_MODE_LEGACY_MASK(FIBRE)
    1573                 :            : #define ADVERTISED_BNC                  __ETHTOOL_LINK_MODE_LEGACY_MASK(BNC)
    1574                 :            : #define ADVERTISED_10000baseT_Full      __ETHTOOL_LINK_MODE_LEGACY_MASK(10000baseT_Full)
    1575                 :            : #define ADVERTISED_Pause                __ETHTOOL_LINK_MODE_LEGACY_MASK(Pause)
    1576                 :            : #define ADVERTISED_Asym_Pause           __ETHTOOL_LINK_MODE_LEGACY_MASK(Asym_Pause)
    1577                 :            : #define ADVERTISED_2500baseX_Full       __ETHTOOL_LINK_MODE_LEGACY_MASK(2500baseX_Full)
    1578                 :            : #define ADVERTISED_Backplane            __ETHTOOL_LINK_MODE_LEGACY_MASK(Backplane)
    1579                 :            : #define ADVERTISED_1000baseKX_Full      __ETHTOOL_LINK_MODE_LEGACY_MASK(1000baseKX_Full)
    1580                 :            : #define ADVERTISED_10000baseKX4_Full    __ETHTOOL_LINK_MODE_LEGACY_MASK(10000baseKX4_Full)
    1581                 :            : #define ADVERTISED_10000baseKR_Full     __ETHTOOL_LINK_MODE_LEGACY_MASK(10000baseKR_Full)
    1582                 :            : #define ADVERTISED_10000baseR_FEC       __ETHTOOL_LINK_MODE_LEGACY_MASK(10000baseR_FEC)
    1583                 :            : #define ADVERTISED_20000baseMLD2_Full   __ETHTOOL_LINK_MODE_LEGACY_MASK(20000baseMLD2_Full)
    1584                 :            : #define ADVERTISED_20000baseKR2_Full    __ETHTOOL_LINK_MODE_LEGACY_MASK(20000baseKR2_Full)
    1585                 :            : #define ADVERTISED_40000baseKR4_Full    __ETHTOOL_LINK_MODE_LEGACY_MASK(40000baseKR4_Full)
    1586                 :            : #define ADVERTISED_40000baseCR4_Full    __ETHTOOL_LINK_MODE_LEGACY_MASK(40000baseCR4_Full)
    1587                 :            : #define ADVERTISED_40000baseSR4_Full    __ETHTOOL_LINK_MODE_LEGACY_MASK(40000baseSR4_Full)
    1588                 :            : #define ADVERTISED_40000baseLR4_Full    __ETHTOOL_LINK_MODE_LEGACY_MASK(40000baseLR4_Full)
    1589                 :            : #define ADVERTISED_56000baseKR4_Full    __ETHTOOL_LINK_MODE_LEGACY_MASK(56000baseKR4_Full)
    1590                 :            : #define ADVERTISED_56000baseCR4_Full    __ETHTOOL_LINK_MODE_LEGACY_MASK(56000baseCR4_Full)
    1591                 :            : #define ADVERTISED_56000baseSR4_Full    __ETHTOOL_LINK_MODE_LEGACY_MASK(56000baseSR4_Full)
    1592                 :            : #define ADVERTISED_56000baseLR4_Full    __ETHTOOL_LINK_MODE_LEGACY_MASK(56000baseLR4_Full)
    1593                 :            : /* Please do not define any new ADVERTISED_* macro for bits > 31, see
    1594                 :            :  * notice above.
    1595                 :            :  */
    1596                 :            : 
    1597                 :            : /* The following are all involved in forcing a particular link
    1598                 :            :  * mode for the device for setting things.  When getting the
    1599                 :            :  * devices settings, these indicate the current mode and whether
    1600                 :            :  * it was forced up into this mode or autonegotiated.
    1601                 :            :  */
    1602                 :            : 
    1603                 :            : /* The forced speed, in units of 1Mb. All values 0 to INT_MAX are legal.
    1604                 :            :  * Update drivers/net/phy/phy.c:phy_speed_to_str() and
    1605                 :            :  * drivers/net/bonding/bond_3ad.c:__get_link_speed() when adding new values.
    1606                 :            :  */
    1607                 :            : #define SPEED_10                10
    1608                 :            : #define SPEED_100               100
    1609                 :            : #define SPEED_1000              1000
    1610                 :            : #define SPEED_2500              2500
    1611                 :            : #define SPEED_5000              5000
    1612                 :            : #define SPEED_10000             10000
    1613                 :            : #define SPEED_14000             14000
    1614                 :            : #define SPEED_20000             20000
    1615                 :            : #define SPEED_25000             25000
    1616                 :            : #define SPEED_40000             40000
    1617                 :            : #define SPEED_50000             50000
    1618                 :            : #define SPEED_56000             56000
    1619                 :            : #define SPEED_100000            100000
    1620                 :            : #define SPEED_200000            200000
    1621                 :            : 
    1622                 :            : #define SPEED_UNKNOWN           -1
    1623                 :            : 
    1624                 :            : static inline int ethtool_validate_speed(__u32 speed)
    1625                 :            : {
    1626                 :            :         return speed <= INT_MAX || speed == (__u32)SPEED_UNKNOWN;
    1627                 :            : }
    1628                 :            : 
    1629                 :            : /* Duplex, half or full. */
    1630                 :            : #define DUPLEX_HALF             0x00
    1631                 :            : #define DUPLEX_FULL             0x01
    1632                 :            : #define DUPLEX_UNKNOWN          0xff
    1633                 :            : 
    1634                 :            : static inline int ethtool_validate_duplex(__u8 duplex)
    1635                 :            : {
    1636                 :            :         switch (duplex) {
    1637                 :            :         case DUPLEX_HALF:
    1638                 :            :         case DUPLEX_FULL:
    1639                 :            :         case DUPLEX_UNKNOWN:
    1640                 :            :                 return 1;
    1641                 :            :         }
    1642                 :            : 
    1643                 :            :         return 0;
    1644                 :            : }
    1645                 :            : 
    1646                 :            : /* Which connector port. */
    1647                 :            : #define PORT_TP                 0x00
    1648                 :            : #define PORT_AUI                0x01
    1649                 :            : #define PORT_MII                0x02
    1650                 :            : #define PORT_FIBRE              0x03
    1651                 :            : #define PORT_BNC                0x04
    1652                 :            : #define PORT_DA                 0x05
    1653                 :            : #define PORT_NONE               0xef
    1654                 :            : #define PORT_OTHER              0xff
    1655                 :            : 
    1656                 :            : /* Which transceiver to use. */
    1657                 :            : #define XCVR_INTERNAL           0x00 /* PHY and MAC are in the same package */
    1658                 :            : #define XCVR_EXTERNAL           0x01 /* PHY and MAC are in different packages */
    1659                 :            : #define XCVR_DUMMY1             0x02
    1660                 :            : #define XCVR_DUMMY2             0x03
    1661                 :            : #define XCVR_DUMMY3             0x04
    1662                 :            : 
    1663                 :            : /* Enable or disable autonegotiation. */
    1664                 :            : #define AUTONEG_DISABLE         0x00
    1665                 :            : #define AUTONEG_ENABLE          0x01
    1666                 :            : 
    1667                 :            : /* MDI or MDI-X status/control - if MDI/MDI_X/AUTO is set then
    1668                 :            :  * the driver is required to renegotiate link
    1669                 :            :  */
    1670                 :            : #define ETH_TP_MDI_INVALID      0x00 /* status: unknown; control: unsupported */
    1671                 :            : #define ETH_TP_MDI              0x01 /* status: MDI;     control: force MDI */
    1672                 :            : #define ETH_TP_MDI_X            0x02 /* status: MDI-X;   control: force MDI-X */
    1673                 :            : #define ETH_TP_MDI_AUTO         0x03 /*                  control: auto-select */
    1674                 :            : 
    1675                 :            : /* Wake-On-Lan options. */
    1676                 :            : #define WAKE_PHY                (1 << 0)
    1677                 :            : #define WAKE_UCAST              (1 << 1)
    1678                 :            : #define WAKE_MCAST              (1 << 2)
    1679                 :            : #define WAKE_BCAST              (1 << 3)
    1680                 :            : #define WAKE_ARP                (1 << 4)
    1681                 :            : #define WAKE_MAGIC              (1 << 5)
    1682                 :            : #define WAKE_MAGICSECURE        (1 << 6) /* only meaningful if WAKE_MAGIC */
    1683                 :            : #define WAKE_FILTER             (1 << 7)
    1684                 :            : 
    1685                 :            : /* L2-L4 network traffic flow types */
    1686                 :            : #define TCP_V4_FLOW     0x01    /* hash or spec (tcp_ip4_spec) */
    1687                 :            : #define UDP_V4_FLOW     0x02    /* hash or spec (udp_ip4_spec) */
    1688                 :            : #define SCTP_V4_FLOW    0x03    /* hash or spec (sctp_ip4_spec) */
    1689                 :            : #define AH_ESP_V4_FLOW  0x04    /* hash only */
    1690                 :            : #define TCP_V6_FLOW     0x05    /* hash or spec (tcp_ip6_spec; nfc only) */
    1691                 :            : #define UDP_V6_FLOW     0x06    /* hash or spec (udp_ip6_spec; nfc only) */
    1692                 :            : #define SCTP_V6_FLOW    0x07    /* hash or spec (sctp_ip6_spec; nfc only) */
    1693                 :            : #define AH_ESP_V6_FLOW  0x08    /* hash only */
    1694                 :            : #define AH_V4_FLOW      0x09    /* hash or spec (ah_ip4_spec) */
    1695                 :            : #define ESP_V4_FLOW     0x0a    /* hash or spec (esp_ip4_spec) */
    1696                 :            : #define AH_V6_FLOW      0x0b    /* hash or spec (ah_ip6_spec; nfc only) */
    1697                 :            : #define ESP_V6_FLOW     0x0c    /* hash or spec (esp_ip6_spec; nfc only) */
    1698                 :            : #define IPV4_USER_FLOW  0x0d    /* spec only (usr_ip4_spec) */
    1699                 :            : #define IP_USER_FLOW    IPV4_USER_FLOW
    1700                 :            : #define IPV6_USER_FLOW  0x0e    /* spec only (usr_ip6_spec; nfc only) */
    1701                 :            : #define IPV4_FLOW       0x10    /* hash only */
    1702                 :            : #define IPV6_FLOW       0x11    /* hash only */
    1703                 :            : #define ETHER_FLOW      0x12    /* spec only (ether_spec) */
    1704                 :            : /* Flag to enable additional fields in struct ethtool_rx_flow_spec */
    1705                 :            : #define FLOW_EXT        0x80000000
    1706                 :            : #define FLOW_MAC_EXT    0x40000000
    1707                 :            : /* Flag to enable RSS spreading of traffic matching rule (nfc only) */
    1708                 :            : #define FLOW_RSS        0x20000000
    1709                 :            : 
    1710                 :            : /* L3-L4 network traffic flow hash options */
    1711                 :            : #define RXH_L2DA        (1 << 1)
    1712                 :            : #define RXH_VLAN        (1 << 2)
    1713                 :            : #define RXH_L3_PROTO    (1 << 3)
    1714                 :            : #define RXH_IP_SRC      (1 << 4)
    1715                 :            : #define RXH_IP_DST      (1 << 5)
    1716                 :            : #define RXH_L4_B_0_1    (1 << 6) /* src port in case of TCP/UDP/SCTP */
    1717                 :            : #define RXH_L4_B_2_3    (1 << 7) /* dst port in case of TCP/UDP/SCTP */
    1718                 :            : #define RXH_DISCARD     (1 << 31)
    1719                 :            : 
    1720                 :            : #define RX_CLS_FLOW_DISC        0xffffffffffffffffULL
    1721                 :            : #define RX_CLS_FLOW_WAKE        0xfffffffffffffffeULL
    1722                 :            : 
    1723                 :            : /* Special RX classification rule insert location values */
    1724                 :            : #define RX_CLS_LOC_SPECIAL      0x80000000      /* flag */
    1725                 :            : #define RX_CLS_LOC_ANY          0xffffffff
    1726                 :            : #define RX_CLS_LOC_FIRST        0xfffffffe
    1727                 :            : #define RX_CLS_LOC_LAST         0xfffffffd
    1728                 :            : 
    1729                 :            : /* EEPROM Standards for plug in modules */
    1730                 :            : #define ETH_MODULE_SFF_8079             0x1
    1731                 :            : #define ETH_MODULE_SFF_8079_LEN         256
    1732                 :            : #define ETH_MODULE_SFF_8472             0x2
    1733                 :            : #define ETH_MODULE_SFF_8472_LEN         512
    1734                 :            : #define ETH_MODULE_SFF_8636             0x3
    1735                 :            : #define ETH_MODULE_SFF_8636_LEN         256
    1736                 :            : #define ETH_MODULE_SFF_8436             0x4
    1737                 :            : #define ETH_MODULE_SFF_8436_LEN         256
    1738                 :            : 
    1739                 :            : #define ETH_MODULE_SFF_8636_MAX_LEN     640
    1740                 :            : #define ETH_MODULE_SFF_8436_MAX_LEN     640
    1741                 :            : 
    1742                 :            : /* Reset flags */
    1743                 :            : /* The reset() operation must clear the flags for the components which
    1744                 :            :  * were actually reset.  On successful return, the flags indicate the
    1745                 :            :  * components which were not reset, either because they do not exist
    1746                 :            :  * in the hardware or because they cannot be reset independently.  The
    1747                 :            :  * driver must never reset any components that were not requested.
    1748                 :            :  */
    1749                 :            : enum ethtool_reset_flags {
    1750                 :            :         /* These flags represent components dedicated to the interface
    1751                 :            :          * the command is addressed to.  Shift any flag left by
    1752                 :            :          * ETH_RESET_SHARED_SHIFT to reset a shared component of the
    1753                 :            :          * same type.
    1754                 :            :          */
    1755                 :            :         ETH_RESET_MGMT          = 1 << 0, /* Management processor */
    1756                 :            :         ETH_RESET_IRQ           = 1 << 1, /* Interrupt requester */
    1757                 :            :         ETH_RESET_DMA           = 1 << 2, /* DMA engine */
    1758                 :            :         ETH_RESET_FILTER        = 1 << 3, /* Filtering/flow direction */
    1759                 :            :         ETH_RESET_OFFLOAD       = 1 << 4, /* Protocol offload */
    1760                 :            :         ETH_RESET_MAC           = 1 << 5, /* Media access controller */
    1761                 :            :         ETH_RESET_PHY           = 1 << 6, /* Transceiver/PHY */
    1762                 :            :         ETH_RESET_RAM           = 1 << 7, /* RAM shared between
    1763                 :            :                                                  * multiple components */
    1764                 :            :         ETH_RESET_AP            = 1 << 8, /* Application processor */
    1765                 :            : 
    1766                 :            :         ETH_RESET_DEDICATED     = 0x0000ffff,   /* All components dedicated to
    1767                 :            :                                                  * this interface */
    1768                 :            :         ETH_RESET_ALL           = 0xffffffff,   /* All components used by this
    1769                 :            :                                                  * interface, even if shared */
    1770                 :            : };
    1771                 :            : #define ETH_RESET_SHARED_SHIFT  16
    1772                 :            : 
    1773                 :            : 
    1774                 :            : /**
    1775                 :            :  * struct ethtool_link_settings - link control and status
    1776                 :            :  *
    1777                 :            :  * IMPORTANT, Backward compatibility notice: When implementing new
    1778                 :            :  *      user-space tools, please first try %ETHTOOL_GLINKSETTINGS, and
    1779                 :            :  *      if it succeeds use %ETHTOOL_SLINKSETTINGS to change link
    1780                 :            :  *      settings; do not use %ETHTOOL_SSET if %ETHTOOL_GLINKSETTINGS
    1781                 :            :  *      succeeded: stick to %ETHTOOL_GLINKSETTINGS/%SLINKSETTINGS in
    1782                 :            :  *      that case.  Conversely, if %ETHTOOL_GLINKSETTINGS fails, use
    1783                 :            :  *      %ETHTOOL_GSET to query and %ETHTOOL_SSET to change link
    1784                 :            :  *      settings; do not use %ETHTOOL_SLINKSETTINGS if
    1785                 :            :  *      %ETHTOOL_GLINKSETTINGS failed: stick to
    1786                 :            :  *      %ETHTOOL_GSET/%ETHTOOL_SSET in that case.
    1787                 :            :  *
    1788                 :            :  * @cmd: Command number = %ETHTOOL_GLINKSETTINGS or %ETHTOOL_SLINKSETTINGS
    1789                 :            :  * @speed: Link speed (Mbps)
    1790                 :            :  * @duplex: Duplex mode; one of %DUPLEX_*
    1791                 :            :  * @port: Physical connector type; one of %PORT_*
    1792                 :            :  * @phy_address: MDIO address of PHY (transceiver); 0 or 255 if not
    1793                 :            :  *      applicable.  For clause 45 PHYs this is the PRTAD.
    1794                 :            :  * @autoneg: Enable/disable autonegotiation and auto-detection;
    1795                 :            :  *      either %AUTONEG_DISABLE or %AUTONEG_ENABLE
    1796                 :            :  * @mdio_support: Bitmask of %ETH_MDIO_SUPPORTS_* flags for the MDIO
    1797                 :            :  *      protocols supported by the interface; 0 if unknown.
    1798                 :            :  *      Read-only.
    1799                 :            :  * @eth_tp_mdix: Ethernet twisted-pair MDI(-X) status; one of
    1800                 :            :  *      %ETH_TP_MDI_*.  If the status is unknown or not applicable, the
    1801                 :            :  *      value will be %ETH_TP_MDI_INVALID.  Read-only.
    1802                 :            :  * @eth_tp_mdix_ctrl: Ethernet twisted pair MDI(-X) control; one of
    1803                 :            :  *      %ETH_TP_MDI_*.  If MDI(-X) control is not implemented, reads
    1804                 :            :  *      yield %ETH_TP_MDI_INVALID and writes may be ignored or rejected.
    1805                 :            :  *      When written successfully, the link should be renegotiated if
    1806                 :            :  *      necessary.
    1807                 :            :  * @link_mode_masks_nwords: Number of 32-bit words for each of the
    1808                 :            :  *      supported, advertising, lp_advertising link mode bitmaps. For
    1809                 :            :  *      %ETHTOOL_GLINKSETTINGS: on entry, number of words passed by user
    1810                 :            :  *      (>= 0); on return, if handshake in progress, negative if
    1811                 :            :  *      request size unsupported by kernel: absolute value indicates
    1812                 :            :  *      kernel expected size and all the other fields but cmd
    1813                 :            :  *      are 0; otherwise (handshake completed), strictly positive
    1814                 :            :  *      to indicate size used by kernel and cmd field stays
    1815                 :            :  *      %ETHTOOL_GLINKSETTINGS, all other fields populated by driver. For
    1816                 :            :  *      %ETHTOOL_SLINKSETTINGS: must be valid on entry, ie. a positive
    1817                 :            :  *      value returned previously by %ETHTOOL_GLINKSETTINGS, otherwise
    1818                 :            :  *      refused. For drivers: ignore this field (use kernel's
    1819                 :            :  *      __ETHTOOL_LINK_MODE_MASK_NBITS instead), any change to it will
    1820                 :            :  *      be overwritten by kernel.
    1821                 :            :  * @supported: Bitmap with each bit meaning given by
    1822                 :            :  *      %ethtool_link_mode_bit_indices for the link modes, physical
    1823                 :            :  *      connectors and other link features for which the interface
    1824                 :            :  *      supports autonegotiation or auto-detection.  Read-only.
    1825                 :            :  * @advertising: Bitmap with each bit meaning given by
    1826                 :            :  *      %ethtool_link_mode_bit_indices for the link modes, physical
    1827                 :            :  *      connectors and other link features that are advertised through
    1828                 :            :  *      autonegotiation or enabled for auto-detection.
    1829                 :            :  * @lp_advertising: Bitmap with each bit meaning given by
    1830                 :            :  *      %ethtool_link_mode_bit_indices for the link modes, and other
    1831                 :            :  *      link features that the link partner advertised through
    1832                 :            :  *      autonegotiation; 0 if unknown or not applicable.  Read-only.
    1833                 :            :  * @transceiver: Used to distinguish different possible PHY types,
    1834                 :            :  *      reported consistently by PHYLIB.  Read-only.
    1835                 :            :  *
    1836                 :            :  * If autonegotiation is disabled, the speed and @duplex represent the
    1837                 :            :  * fixed link mode and are writable if the driver supports multiple
    1838                 :            :  * link modes.  If it is enabled then they are read-only; if the link
    1839                 :            :  * is up they represent the negotiated link mode; if the link is down,
    1840                 :            :  * the speed is 0, %SPEED_UNKNOWN or the highest enabled speed and
    1841                 :            :  * @duplex is %DUPLEX_UNKNOWN or the best enabled duplex mode.
    1842                 :            :  *
    1843                 :            :  * Some hardware interfaces may have multiple PHYs and/or physical
    1844                 :            :  * connectors fitted or do not allow the driver to detect which are
    1845                 :            :  * fitted.  For these interfaces @port and/or @phy_address may be
    1846                 :            :  * writable, possibly dependent on @autoneg being %AUTONEG_DISABLE.
    1847                 :            :  * Otherwise, attempts to write different values may be ignored or
    1848                 :            :  * rejected.
    1849                 :            :  *
    1850                 :            :  * Deprecated %ethtool_cmd fields transceiver, maxtxpkt and maxrxpkt
    1851                 :            :  * are not available in %ethtool_link_settings. These fields will be
    1852                 :            :  * always set to zero in %ETHTOOL_GSET reply and %ETHTOOL_SSET will
    1853                 :            :  * fail if any of them is set to non-zero value.
    1854                 :            :  *
    1855                 :            :  * Users should assume that all fields not marked read-only are
    1856                 :            :  * writable and subject to validation by the driver.  They should use
    1857                 :            :  * %ETHTOOL_GLINKSETTINGS to get the current values before making specific
    1858                 :            :  * changes and then applying them with %ETHTOOL_SLINKSETTINGS.
    1859                 :            :  *
    1860                 :            :  * Drivers that implement %get_link_ksettings and/or
    1861                 :            :  * %set_link_ksettings should ignore the @cmd
    1862                 :            :  * and @link_mode_masks_nwords fields (any change to them overwritten
    1863                 :            :  * by kernel), and rely only on kernel's internal
    1864                 :            :  * %__ETHTOOL_LINK_MODE_MASK_NBITS and
    1865                 :            :  * %ethtool_link_mode_mask_t. Drivers that implement
    1866                 :            :  * %set_link_ksettings() should validate all fields other than @cmd
    1867                 :            :  * and @link_mode_masks_nwords that are not described as read-only or
    1868                 :            :  * deprecated, and must ignore all fields described as read-only.
    1869                 :            :  */
    1870                 :            : struct ethtool_link_settings {
    1871                 :            :         __u32   cmd;
    1872                 :            :         __u32   speed;
    1873                 :            :         __u8    duplex;
    1874                 :            :         __u8    port;
    1875                 :            :         __u8    phy_address;
    1876                 :            :         __u8    autoneg;
    1877                 :            :         __u8    mdio_support;
    1878                 :            :         __u8    eth_tp_mdix;
    1879                 :            :         __u8    eth_tp_mdix_ctrl;
    1880                 :            :         __s8    link_mode_masks_nwords;
    1881                 :            :         __u8    transceiver;
    1882                 :            :         __u8    reserved1[3];
    1883                 :            :         __u32   reserved[7];
    1884                 :            :         __u32   link_mode_masks[0];
    1885                 :            :         /* layout of link_mode_masks fields:
    1886                 :            :          * __u32 map_supported[link_mode_masks_nwords];
    1887                 :            :          * __u32 map_advertising[link_mode_masks_nwords];
    1888                 :            :          * __u32 map_lp_advertising[link_mode_masks_nwords];
    1889                 :            :          */
    1890                 :            : };
    1891                 :            : #endif /* _UAPI_LINUX_ETHTOOL_H */
    

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