hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'ethtool_docs' 

Ben Hutchings says:

====================
ethtool: Improve documentation

This series converts most comments in <linux/ethtool.h> into kernel-doc
format, and expands them to describe the semantics as well as I
understand them.  It also fixes some kernel-doc formatting errors.

I started on this at Solarflare, but they graciously allowed me to take
it away and finish it off.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2014-02-12 17:33:39 -05:00
parent 738b52bb98 073e3cf219
commit a146b59197
2 changed files with 329 additions and 113 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
include/linux/ethtool.h
View File

@ -183,6 +183,9 @@ static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings)
* hold the RTNL lock.
*
* See the structures used by these operations for further documentation.
* Note that for all operations using a structure ending with a zero-
* length array, the array is allocated separately in the kernel and
* is passed to the driver as an additional parameter.
*
* See &struct net_device and &struct net_device_ops for documentation
* of the generic netdev features interface.

439
include/uapi/linux/ethtool.h
View File

@ -16,37 +16,97 @@
#include <linux/types.h>
#include <linux/if_ether.h>
/* This should work for both 32 and 64 bit userland. */
/* All structures exposed to userland should be defined such that they
* have the same layout for 32-bit and 64-bit userland.
*/
/**
* struct ethtool_cmd - link control and status
* @cmd: Command number = %ETHTOOL_GSET or %ETHTOOL_SSET
* @supported: Bitmask of %SUPPORTED_* flags for the link modes,
* physical connectors and other link features for which the
* interface supports autonegotiation or auto-detection.
* Read-only.
* @advertising: Bitmask of %ADVERTISED_* flags for the link modes,
* physical connectors and other link features that are
* advertised through autonegotiation or enabled for
* auto-detection.
* @speed: Low bits of the speed
* @duplex: Duplex mode; one of %DUPLEX_*
* @port: Physical connector type; one of %PORT_*
* @phy_address: MDIO address of PHY (transceiver); 0 or 255 if not
* applicable. For clause 45 PHYs this is the PRTAD.
* @transceiver: Historically used to distinguish different possible
* PHY types, but not in a consistent way. Deprecated.
* @autoneg: Enable/disable autonegotiation and auto-detection;
* either %AUTONEG_DISABLE or %AUTONEG_ENABLE
* @mdio_support: Bitmask of %ETH_MDIO_SUPPORTS_* flags for the MDIO
* protocols supported by the interface; 0 if unknown.
* Read-only.
* @maxtxpkt: Historically used to report TX IRQ coalescing; now
* obsoleted by &struct ethtool_coalesce. Read-only; deprecated.
* @maxrxpkt: Historically used to report RX IRQ coalescing; now
* obsoleted by &struct ethtool_coalesce. Read-only; deprecated.
* @speed_hi: High bits of the speed
* @eth_tp_mdix: Ethernet twisted-pair MDI(-X) status; one of
* %ETH_TP_MDI_*. If the status is unknown or not applicable, the
* value will be %ETH_TP_MDI_INVALID. Read-only.
* @eth_tp_mdix_ctrl: Ethernet twisted pair MDI(-X) control; one of
* %ETH_TP_MDI_*. If MDI(-X) control is not implemented, reads
* yield %ETH_TP_MDI_INVALID and writes may be ignored or rejected.
* When written successfully, the link should be renegotiated if
* necessary.
* @lp_advertising: Bitmask of %ADVERTISED_* flags for the link modes
* and other link features that the link partner advertised
* through autonegotiation; 0 if unknown or not applicable.
* Read-only.
*
* The link speed in Mbps is split between @speed and @speed_hi. Use
* the ethtool_cmd_speed() and ethtool_cmd_speed_set() functions to
* access it.
*
* If autonegotiation is disabled, the speed and @duplex represent the
* fixed link mode and are writable if the driver supports multiple
* link modes. If it is enabled then they are read-only; if the link
* is up they represent the negotiated link mode; if the link is down,
* the speed is 0, %SPEED_UNKNOWN or the highest enabled speed and
* @duplex is %DUPLEX_UNKNOWN or the best enabled duplex mode.
*
* Some hardware interfaces may have multiple PHYs and/or physical
* connectors fitted or do not allow the driver to detect which are
* fitted. For these interfaces @port and/or @phy_address may be
* writable, possibly dependent on @autoneg being %AUTONEG_DISABLE.
* Otherwise, attempts to write different values may be ignored or
* rejected.
*
* Users should assume that all fields not marked read-only are
* writable and subject to validation by the driver. They should use
* %ETHTOOL_GSET to get the current values before making specific
* changes and then applying them with %ETHTOOL_SSET.
*
* Drivers that implement set_settings() should validate all fields
* other than @cmd that are not described as read-only or deprecated,
* and must ignore all fields described as read-only.
*
* Deprecated fields should be ignored by both users and drivers.
*/
struct ethtool_cmd {
__u32 cmd;
__u32 supported; /* Features this interface supports */
__u32 advertising; /* Features this interface advertises */
__u16 speed; /* The forced speed (lower bits) in
* Mbps. Please use
* ethtool_cmd_speed()/_set() to
* access it */
__u8 duplex; /* Duplex, half or full */
__u8 port; /* Which connector port */
__u8 phy_address; /* MDIO PHY address (PRTAD for clause 45).
* May be read-only or read-write
* depending on the driver.
*/
__u8 transceiver; /* Which transceiver to use */
__u8 autoneg; /* Enable or disable autonegotiation */
__u8 mdio_support; /* MDIO protocols supported. Read-only.
* Not set by all drivers.
*/
__u32 maxtxpkt; /* Tx pkts before generating tx int */
__u32 maxrxpkt; /* Rx pkts before generating rx int */
__u16 speed_hi; /* The forced speed (upper
* bits) in Mbps. Please use
* ethtool_cmd_speed()/_set() to
* access it */
__u8 eth_tp_mdix; /* twisted pair MDI-X status */
__u8 eth_tp_mdix_ctrl; /* twisted pair MDI-X control, when set,
* link should be renegotiated if necessary
*/
__u32 lp_advertising; /* Features the link partner advertises */
__u32 supported;
__u32 advertising;
__u16 speed;
__u8 duplex;
__u8 port;
__u8 phy_address;
__u8 transceiver;
__u8 autoneg;
__u8 mdio_support;
__u32 maxtxpkt;
__u32 maxrxpkt;
__u16 speed_hi;
__u8 eth_tp_mdix;
__u8 eth_tp_mdix_ctrl;
__u32 lp_advertising;
__u32 reserved[2];
};
@ -79,37 +139,68 @@ static inline __u32 ethtool_cmd_speed(const struct ethtool_cmd *ep)
#define ETHTOOL_FWVERS_LEN 32
#define ETHTOOL_BUSINFO_LEN 32
/* these strings are set to whatever the driver author decides... */
/**
* struct ethtool_drvinfo - general driver and device information
* @cmd: Command number = %ETHTOOL_GDRVINFO
* @driver: Driver short name. This should normally match the name
* in its bus driver structure (e.g. pci_driver::name). Must
* not be an empty string.
* @version: Driver version string; may be an empty string
* @fw_version: Firmware version string; may be an empty string
* @bus_info: Device bus address. This should match the dev_name()
* string for the underlying bus device, if there is one. May be
* an empty string.
* @n_priv_flags: Number of flags valid for %ETHTOOL_GPFLAGS and
* %ETHTOOL_SPFLAGS commands; also the number of strings in the
* %ETH_SS_PRIV_FLAGS set
* @n_stats: Number of u64 statistics returned by the %ETHTOOL_GSTATS
* command; also the number of strings in the %ETH_SS_STATS set
* @testinfo_len: Number of results returned by the %ETHTOOL_TEST
* command; also the number of strings in the %ETH_SS_TEST set
* @eedump_len: Size of EEPROM accessible through the %ETHTOOL_GEEPROM
* and %ETHTOOL_SEEPROM commands, in bytes
* @regdump_len: Size of register dump returned by the %ETHTOOL_GREGS
* command, in bytes
*
* Users can use the %ETHTOOL_GSSET_INFO command to get the number of
* strings in any string set (from Linux 2.6.34).
*
* Drivers should set at most @driver, @version, @fw_version and
* @bus_info in their get_drvinfo() implementation. The ethtool
* core fills in the other fields using other driver operations.
*/
struct ethtool_drvinfo {
__u32 cmd;
char driver[32]; /* driver short name, "tulip", "eepro100" */
char version[32]; /* driver version string */
char fw_version[ETHTOOL_FWVERS_LEN]; /* firmware version string */
char bus_info[ETHTOOL_BUSINFO_LEN]; /* Bus info for this IF. */
/* For PCI devices, use pci_name(pci_dev). */
char driver[32];
char version[32];
char fw_version[ETHTOOL_FWVERS_LEN];
char bus_info[ETHTOOL_BUSINFO_LEN];
char reserved1[32];
char reserved2[12];
/*
* Some struct members below are filled in
* using ops->get_sset_count(). Obtaining
* this info from ethtool_drvinfo is now
* deprecated; Use ETHTOOL_GSSET_INFO
* instead.
*/
__u32 n_priv_flags; /* number of flags valid in ETHTOOL_GPFLAGS */
__u32 n_stats; /* number of u64's from ETHTOOL_GSTATS */
__u32 n_priv_flags;
__u32 n_stats;
__u32 testinfo_len;
__u32 eedump_len; /* Size of data from ETHTOOL_GEEPROM (bytes) */
__u32 regdump_len; /* Size of data from ETHTOOL_GREGS (bytes) */
__u32 eedump_len;
__u32 regdump_len;
};
#define SOPASS_MAX 6
/* wake-on-lan settings */
/**
* struct ethtool_wolinfo - Wake-On-Lan configuration
* @cmd: Command number = %ETHTOOL_GWOL or %ETHTOOL_SWOL
* @supported: Bitmask of %WAKE_* flags for supported Wake-On-Lan modes.
* Read-only.
* @wolopts: Bitmask of %WAKE_* flags for enabled Wake-On-Lan modes.
* @sopass: SecureOn(tm) password; meaningful only if %WAKE_MAGICSECURE
* is set in @wolopts.
*/
struct ethtool_wolinfo {
__u32 cmd;
__u32 supported;
__u32 wolopts;
__u8 sopass[SOPASS_MAX]; /* SecureOn(tm) password */
__u8 sopass[SOPASS_MAX];
};
/* for passing single values */
@ -118,20 +209,51 @@ struct ethtool_value {
__u32 data;
};
/* for passing big chunks of data */
/**
* struct ethtool_regs - hardware register dump
* @cmd: Command number = %ETHTOOL_GREGS
* @version: Dump format version. This is driver-specific and may
* distinguish different chips/revisions. Drivers must use new
* version numbers whenever the dump format changes in an
* incompatible way.
* @len: On entry, the real length of @data. On return, the number of
* bytes used.
* @data: Buffer for the register dump
*
* Users should use %ETHTOOL_GDRVINFO to find the maximum length of
* a register dump for the interface. They must allocate the buffer
* immediately following this structure.
*/
struct ethtool_regs {
__u32 cmd;
__u32 version; /* driver-specific, indicates different chips/revs */
__u32 len; /* bytes */
__u32 version;
__u32 len;
__u8 data[0];
};
/* for passing EEPROM chunks */
/**
* struct ethtool_eeprom - EEPROM dump
* @cmd: Command number = %ETHTOOL_GEEPROM, %ETHTOOL_GMODULEEEPROM or
* %ETHTOOL_SEEPROM
* @magic: A 'magic cookie' value to guard against accidental changes.
* The value passed in to %ETHTOOL_SEEPROM must match the value
* returned by %ETHTOOL_GEEPROM for the same device. This is
* unused when @cmd is %ETHTOOL_GMODULEEEPROM.
* @offset: Offset within the EEPROM to begin reading/writing, in bytes
* @len: On entry, number of bytes to read/write. On successful
* return, number of bytes actually read/written. In case of
* error, this may indicate at what point the error occurred.
* @data: Buffer to read/write from
*
* Users may use %ETHTOOL_GDRVINFO or %ETHTOOL_GMODULEINFO to find
* the length of an on-board or module EEPROM, respectively. They
* must allocate the buffer immediately following this structure.
*/
struct ethtool_eeprom {
__u32 cmd;
__u32 magic;
__u32 offset; /* in bytes */
__u32 len; /* in bytes */
__u32 offset;
__u32 len;
__u8 data[0];
};
@ -229,17 +351,18 @@ struct ethtool_modinfo {
* @rate_sample_interval: How often to do adaptive coalescing packet rate
* sampling, measured in seconds. Must not be zero.
*
* Each pair of (usecs, max_frames) fields specifies this exit
* condition for interrupt coalescing:
* Each pair of (usecs, max_frames) fields specifies that interrupts
* should be coalesced until
* (usecs > 0 && time_since_first_completion >= usecs) ||
* (max_frames > 0 && completed_frames >= max_frames)
*
* It is illegal to set both usecs and max_frames to zero as this
* would cause interrupts to never be generated. To disable
* coalescing, set usecs = 0 and max_frames = 1.
*
* Some implementations ignore the value of max_frames and use the
* condition:
* time_since_first_completion >= usecs
* condition time_since_first_completion >= usecs
*
* This is deprecated. Drivers for hardware that does not support
* counting completions should validate that max_frames == !rx_usecs.
*
@ -279,22 +402,37 @@ struct ethtool_coalesce {
__u32 rate_sample_interval;
};
/* for configuring RX/TX ring parameters */
/**
* struct ethtool_ringparam - RX/TX ring parameters
* @cmd: Command number = %ETHTOOL_GRINGPARAM or %ETHTOOL_SRINGPARAM
* @rx_max_pending: Maximum supported number of pending entries per
* RX ring. Read-only.
* @rx_mini_max_pending: Maximum supported number of pending entries
* per RX mini ring. Read-only.
* @rx_jumbo_max_pending: Maximum supported number of pending entries
* per RX jumbo ring. Read-only.
* @tx_max_pending: Maximum supported number of pending entries per
* TX ring. Read-only.
* @rx_pending: Current maximum number of pending entries per RX ring
* @rx_mini_pending: Current maximum number of pending entries per RX
* mini ring
* @rx_jumbo_pending: Current maximum number of pending entries per RX
* jumbo ring
* @tx_pending: Current maximum supported number of pending entries
* per TX ring
*
* If the interface does not have separate RX mini and/or jumbo rings,
* @rx_mini_max_pending and/or @rx_jumbo_max_pending will be 0.
*
* There may also be driver-dependent minimum values for the number
* of entries per ring.
*/
struct ethtool_ringparam {
__u32 cmd; /* ETHTOOL_{G,S}RINGPARAM */
/* Read only attributes. These indicate the maximum number
* of pending RX/TX ring entries the driver will allow the
* user to set.
*/
__u32 cmd;
__u32 rx_max_pending;
__u32 rx_mini_max_pending;
__u32 rx_jumbo_max_pending;
__u32 tx_max_pending;
/* Values changeable by the user. The valid values are
* in the range 1 to the "*_max_pending" counterpart above.
*/
__u32 rx_pending;
__u32 rx_mini_pending;
__u32 rx_jumbo_pending;
@ -329,51 +467,96 @@ struct ethtool_channels {
__u32 combined_count;
};
/* for configuring link flow control parameters */
/**
* struct ethtool_pauseparam - Ethernet pause (flow control) parameters
* @cmd: Command number = %ETHTOOL_GPAUSEPARAM or %ETHTOOL_SPAUSEPARAM
* @autoneg: Flag to enable autonegotiation of pause frame use
* @rx_pause: Flag to enable reception of pause frames
* @tx_pause: Flag to enable transmission of pause frames
*
* Drivers should reject a non-zero setting of @autoneg when
* autoneogotiation is disabled (or not supported) for the link.
*
* If the link is autonegotiated, drivers should use
* mii_advertise_flowctrl() or similar code to set the advertised
* pause frame capabilities based on the @rx_pause and @tx_pause flags,
* even if @autoneg is zero. They should also allow the advertised
* pause frame capabilities to be controlled directly through the
* advertising field of &struct ethtool_cmd.
*
* If @autoneg is non-zero, the MAC is configured to send and/or
* receive pause frames according to the result of autonegotiation.
* Otherwise, it is configured directly based on the @rx_pause and
* @tx_pause flags.
*/
struct ethtool_pauseparam {
__u32 cmd; /* ETHTOOL_{G,S}PAUSEPARAM */
/* If the link is being auto-negotiated (via ethtool_cmd.autoneg
* being true) the user may set 'autoneg' here non-zero to have the
* pause parameters be auto-negotiated too. In such a case, the
* {rx,tx}_pause values below determine what capabilities are
* advertised.
*
* If 'autoneg' is zero or the link is not being auto-negotiated,
* then {rx,tx}_pause force the driver to use/not-use pause
* flow control.
*/
__u32 cmd;
__u32 autoneg;
__u32 rx_pause;
__u32 tx_pause;
};
#define ETH_GSTRING_LEN 32
/**
* enum ethtool_stringset - string set ID
* @ETH_SS_TEST: Self-test result names, for use with %ETHTOOL_TEST
* @ETH_SS_STATS: Statistic names, for use with %ETHTOOL_GSTATS
* @ETH_SS_PRIV_FLAGS: Driver private flag names, for use with
* %ETHTOOL_GPFLAGS and %ETHTOOL_SPFLAGS
* @ETH_SS_NTUPLE_FILTERS: Previously used with %ETHTOOL_GRXNTUPLE;
* now deprecated
* @ETH_SS_FEATURES: Device feature names
*/
enum ethtool_stringset {
ETH_SS_TEST = 0,
ETH_SS_STATS,
ETH_SS_PRIV_FLAGS,
ETH_SS_NTUPLE_FILTERS, /* Do not use, GRXNTUPLE is now deprecated */
ETH_SS_NTUPLE_FILTERS,
ETH_SS_FEATURES,
};
/* for passing string sets for data tagging */
/**
* struct ethtool_gstrings - string set for data tagging
* @cmd: Command number = %ETHTOOL_GSTRINGS
* @string_set: String set ID; one of &enum ethtool_stringset
* @len: On return, the number of strings in the string set
* @data: Buffer for strings. Each string is null-padded to a size of
* %ETH_GSTRING_LEN.
*
* Users must use %ETHTOOL_GSSET_INFO to find the number of strings in
* the string set. They must allocate a buffer of the appropriate
* size immediately following this structure.
*/
struct ethtool_gstrings {
__u32 cmd; /* ETHTOOL_GSTRINGS */
__u32 string_set; /* string set id e.c. ETH_SS_TEST, etc*/
__u32 len; /* number of strings in the string set */
__u32 cmd;
__u32 string_set;
__u32 len;
__u8 data[0];
};
/**
* struct ethtool_sset_info - string set information
* @cmd: Command number = %ETHTOOL_GSSET_INFO
* @sset_mask: On entry, a bitmask of string sets to query, with bits
* numbered according to &enum ethtool_stringset. On return, a
* bitmask of those string sets queried that are supported.
* @data: Buffer for string set sizes. On return, this contains the
* size of each string set that was queried and supported, in
* order of ID.
*
* Example: The user passes in @sset_mask = 0x7 (sets 0, 1, 2) and on
* return @sset_mask == 0x6 (sets 1, 2). Then @data[0] contains the
* size of set 1 and @data[1] contains the size of set 2.
*
* Users must allocate a buffer of the appropriate size (4 * number of
* sets queried) immediately following this structure.
*/
struct ethtool_sset_info {
__u32 cmd; /* ETHTOOL_GSSET_INFO */
__u32 cmd;
__u32 reserved;
__u64 sset_mask; /* input: each bit selects an sset to query */
/* output: each bit a returned sset */
__u32 data[0]; /* ETH_SS_xxx count, in order, based on bits
in sset_mask. One bit implies one
__u32, two bits implies two
__u32's, etc. */
__u64 sset_mask;
__u32 data[0];
};
/**
@ -393,24 +576,58 @@ enum ethtool_test_flags {
ETH_TEST_FL_EXTERNAL_LB_DONE = (1 << 3),
};
/* for requesting NIC test and getting results*/
/**
* struct ethtool_test - device self-test invocation
* @cmd: Command number = %ETHTOOL_TEST
* @flags: A bitmask of flags from &enum ethtool_test_flags. Some
* flags may be set by the user on entry; others may be set by
* the driver on return.
* @len: On return, the number of test results
* @data: Array of test results
*
* Users must use %ETHTOOL_GSSET_INFO or %ETHTOOL_GDRVINFO to find the
* number of test results that will be returned. They must allocate a
* buffer of the appropriate size (8 * number of results) immediately
* following this structure.
*/
struct ethtool_test {
__u32 cmd; /* ETHTOOL_TEST */
__u32 flags; /* ETH_TEST_FL_xxx */
__u32 cmd;
__u32 flags;
__u32 reserved;
__u32 len; /* result length, in number of u64 elements */
__u32 len;
__u64 data[0];
};
/* for dumping NIC-specific statistics */
/**
* struct ethtool_stats - device-specific statistics
* @cmd: Command number = %ETHTOOL_GSTATS
* @n_stats: On return, the number of statistics
* @data: Array of statistics
*
* Users must use %ETHTOOL_GSSET_INFO or %ETHTOOL_GDRVINFO to find the
* number of statistics that will be returned. They must allocate a
* buffer of the appropriate size (8 * number of statistics)
* immediately following this structure.
*/
struct ethtool_stats {
__u32 cmd; /* ETHTOOL_GSTATS */
__u32 n_stats; /* number of u64's being returned */
__u32 cmd;
__u32 n_stats;
__u64 data[0];
};
/**
* struct ethtool_perm_addr - permanent hardware address
* @cmd: Command number = %ETHTOOL_GPERMADDR
* @size: On entry, the size of the buffer. On return, the size of the
* address. The command fails if the buffer is too small.
* @data: Buffer for the address
*
* Users must allocate the buffer immediately following this structure.
* A buffer size of %MAX_ADDR_LEN should be sufficient for any address
* type.
*/
struct ethtool_perm_addr {
__u32 cmd; /* ETHTOOL_GPERMADDR */
__u32 cmd;
__u32 size;
__u8 data[0];
};
@ -593,7 +810,7 @@ struct ethtool_rx_flow_spec {
* %ETHTOOL_SRXCLSRLINS may add the rule at any suitable unused
* location, and may remove a rule at a later location (lower
* priority) that matches exactly the same set of flows. The special
* values are: %RX_CLS_LOC_ANY, selecting any location;
* values are %RX_CLS_LOC_ANY, selecting any location;
* %RX_CLS_LOC_FIRST, selecting the first suitable location (maximum
* priority); and %RX_CLS_LOC_LAST, selecting the last suitable
* location (minimum priority). Additional special values may be
@ -704,9 +921,6 @@ struct ethtool_flash {
* for %ETHTOOL_GET_DUMP_FLAG command
* @data: data collected for get dump data operation
*/
#define ETH_FW_DUMP_DISABLE 0
struct ethtool_dump {
__u32 cmd;
__u32 version;
@ -715,6 +929,8 @@ struct ethtool_dump {
__u8 data[0];
};
#define ETH_FW_DUMP_DISABLE 0
/* for returning and changing feature sets */
/**
@ -734,8 +950,9 @@ struct ethtool_get_features_block {
/**
* struct ethtool_gfeatures - command to get state of device's features
* @cmd: command number = %ETHTOOL_GFEATURES
* @size: in: number of elements in the features[] array;
* out: number of elements in features[] needed to hold all features
* @size: On entry, the number of elements in the features[] array;
* on return, the number of elements in features[] needed to hold
* all features
* @features: state of features
*/
struct ethtool_gfeatures {
@ -905,7 +1122,6 @@ enum ethtool_sfeatures_retval_bits {
#define SPARC_ETH_GSET ETHTOOL_GSET
#define SPARC_ETH_SSET ETHTOOL_SSET
/* Indicates what features are supported by the interface. */
#define SUPPORTED_10baseT_Half (1 << 0)
#define SUPPORTED_10baseT_Full (1 << 1)
#define SUPPORTED_100baseT_Half (1 << 2)
@ -934,7 +1150,6 @@ enum ethtool_sfeatures_retval_bits {
#define SUPPORTED_40000baseSR4_Full (1 << 25)
#define SUPPORTED_40000baseLR4_Full (1 << 26)
/* Indicates what features are advertised by the interface. */
#define ADVERTISED_10baseT_Half (1 << 0)
#define ADVERTISED_10baseT_Full (1 << 1)
#define ADVERTISED_100baseT_Half (1 << 2)
@ -999,9 +1214,7 @@ enum ethtool_sfeatures_retval_bits {
#define XCVR_DUMMY2 0x03
#define XCVR_DUMMY3 0x04
/* Enable or disable autonegotiation. If this is set to enable,
* the forced link modes above are completely ignored.
*/
/* Enable or disable autonegotiation. */
#define AUTONEG_DISABLE 0x00
#define AUTONEG_ENABLE 0x01