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OpenCloudOS-Kernel/include/linux/ethtool.h

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/* SPDX-License-Identifier: GPL-2.0 */
/*
* ethtool.h: Defines for Linux ethtool.
*
* Copyright (C) 1998 David S. Miller (davem@redhat.com)
* Copyright 2001 Jeff Garzik <jgarzik@pobox.com>
* Portions Copyright 2001 Sun Microsystems (thockin@sun.com)
* Portions Copyright 2002 Intel (eli.kupermann@intel.com,
* christopher.leech@intel.com,
* scott.feldman@intel.com)
* Portions Copyright (C) Sun Microsystems 2008
*/
#ifndef _LINUX_ETHTOOL_H
#define _LINUX_ETHTOOL_H
#include <linux/bitmap.h>
#include <linux/compat.h>
#include <linux/if_ether.h>
#include <linux/netlink.h>
#include <uapi/linux/ethtool.h>
struct compat_ethtool_rx_flow_spec {
u32 flow_type;
union ethtool_flow_union h_u;
struct ethtool_flow_ext h_ext;
union ethtool_flow_union m_u;
struct ethtool_flow_ext m_ext;
compat_u64 ring_cookie;
u32 location;
};
struct compat_ethtool_rxnfc {
u32 cmd;
u32 flow_type;
compat_u64 data;
struct compat_ethtool_rx_flow_spec fs;
u32 rule_cnt;
u32 rule_locs[];
};
#include <linux/rculist.h>
/**
* enum ethtool_phys_id_state - indicator state for physical identification
* @ETHTOOL_ID_INACTIVE: Physical ID indicator should be deactivated
* @ETHTOOL_ID_ACTIVE: Physical ID indicator should be activated
* @ETHTOOL_ID_ON: LED should be turned on (used iff %ETHTOOL_ID_ACTIVE
* is not supported)
* @ETHTOOL_ID_OFF: LED should be turned off (used iff %ETHTOOL_ID_ACTIVE
* is not supported)
*/
enum ethtool_phys_id_state {
ETHTOOL_ID_INACTIVE,
ETHTOOL_ID_ACTIVE,
ETHTOOL_ID_ON,
ETHTOOL_ID_OFF
};
enum {
ETH_RSS_HASH_TOP_BIT, /* Configurable RSS hash function - Toeplitz */
ETH_RSS_HASH_XOR_BIT, /* Configurable RSS hash function - Xor */
ETH_RSS_HASH_CRC32_BIT, /* Configurable RSS hash function - Crc32 */
/*
* Add your fresh new hash function bits above and remember to update
* rss_hash_func_strings[] in ethtool.c
*/
ETH_RSS_HASH_FUNCS_COUNT
};
/**
* struct kernel_ethtool_ringparam - RX/TX ring configuration
* @rx_buf_len: Current length of buffers on the rx ring.
* @tcp_data_split: Scatter packet headers and data to separate buffers
* @tx_push: The flag of tx push mode
* @rx_push: The flag of rx push mode
* @cqe_size: Size of TX/RX completion queue event
* @tx_push_buf_len: Size of TX push buffer
* @tx_push_buf_max_len: Maximum allowed size of TX push buffer
*/
struct kernel_ethtool_ringparam {
u32 rx_buf_len;
u8 tcp_data_split;
u8 tx_push;
u8 rx_push;
u32 cqe_size;
u32 tx_push_buf_len;
u32 tx_push_buf_max_len;
};
/**
* enum ethtool_supported_ring_param - indicator caps for setting ring params
* @ETHTOOL_RING_USE_RX_BUF_LEN: capture for setting rx_buf_len
* @ETHTOOL_RING_USE_CQE_SIZE: capture for setting cqe_size
* @ETHTOOL_RING_USE_TX_PUSH: capture for setting tx_push
* @ETHTOOL_RING_USE_RX_PUSH: capture for setting rx_push
* @ETHTOOL_RING_USE_TX_PUSH_BUF_LEN: capture for setting tx_push_buf_len
*/
enum ethtool_supported_ring_param {
ETHTOOL_RING_USE_RX_BUF_LEN = BIT(0),
ETHTOOL_RING_USE_CQE_SIZE = BIT(1),
ETHTOOL_RING_USE_TX_PUSH = BIT(2),
ETHTOOL_RING_USE_RX_PUSH = BIT(3),
ETHTOOL_RING_USE_TX_PUSH_BUF_LEN = BIT(4),
};
#define __ETH_RSS_HASH_BIT(bit) ((u32)1 << (bit))
#define __ETH_RSS_HASH(name) __ETH_RSS_HASH_BIT(ETH_RSS_HASH_##name##_BIT)
#define ETH_RSS_HASH_TOP __ETH_RSS_HASH(TOP)
#define ETH_RSS_HASH_XOR __ETH_RSS_HASH(XOR)
#define ETH_RSS_HASH_CRC32 __ETH_RSS_HASH(CRC32)
#define ETH_RSS_HASH_UNKNOWN 0
#define ETH_RSS_HASH_NO_CHANGE 0
struct net_device;
struct netlink_ext_ack;
/* Link extended state and substate. */
struct ethtool_link_ext_state_info {
enum ethtool_link_ext_state link_ext_state;
union {
enum ethtool_link_ext_substate_autoneg autoneg;
enum ethtool_link_ext_substate_link_training link_training;
enum ethtool_link_ext_substate_link_logical_mismatch link_logical_mismatch;
enum ethtool_link_ext_substate_bad_signal_integrity bad_signal_integrity;
enum ethtool_link_ext_substate_cable_issue cable_issue;
enum ethtool_link_ext_substate_module module;
u32 __link_ext_substate;
};
};
struct ethtool_link_ext_stats {
/* Custom Linux statistic for PHY level link down events.
* In a simpler world it should be equal to netdev->carrier_down_count
* unfortunately netdev also counts local reconfigurations which don't
* actually take the physical link down, not to mention NC-SI which,
* if present, keeps the link up regardless of host state.
* This statistic counts when PHY _actually_ went down, or lost link.
*
* Note that we need u64 for ethtool_stats_init() and comparisons
* to ETHTOOL_STAT_NOT_SET, but only u32 is exposed to the user.
*/
u64 link_down_events;
};
/**
* ethtool_rxfh_indir_default - get default value for RX flow hash indirection
* @index: Index in RX flow hash indirection table
* @n_rx_rings: Number of RX rings to use
*
* This function provides the default policy for RX flow hash indirection.
*/
static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings)
{
return index % n_rx_rings;
}
/* declare a link mode bitmap */
#define __ETHTOOL_DECLARE_LINK_MODE_MASK(name) \
DECLARE_BITMAP(name, __ETHTOOL_LINK_MODE_MASK_NBITS)
/* drivers must ignore base.cmd and base.link_mode_masks_nwords
* fields, but they are allowed to overwrite them (will be ignored).
*/
struct ethtool_link_ksettings {
struct ethtool_link_settings base;
struct {
__ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
__ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
__ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising);
} link_modes;
u32 lanes;
};
/**
* ethtool_link_ksettings_zero_link_mode - clear link_ksettings link mode mask
* @ptr : pointer to struct ethtool_link_ksettings
* @name : one of supported/advertising/lp_advertising
*/
#define ethtool_link_ksettings_zero_link_mode(ptr, name) \
bitmap_zero((ptr)->link_modes.name, __ETHTOOL_LINK_MODE_MASK_NBITS)
/**
* ethtool_link_ksettings_add_link_mode - set bit in link_ksettings
* link mode mask
* @ptr : pointer to struct ethtool_link_ksettings
* @name : one of supported/advertising/lp_advertising
* @mode : one of the ETHTOOL_LINK_MODE_*_BIT
* (not atomic, no bound checking)
*/
#define ethtool_link_ksettings_add_link_mode(ptr, name, mode) \
__set_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
/**
* ethtool_link_ksettings_del_link_mode - clear bit in link_ksettings
* link mode mask
* @ptr : pointer to struct ethtool_link_ksettings
* @name : one of supported/advertising/lp_advertising
* @mode : one of the ETHTOOL_LINK_MODE_*_BIT
* (not atomic, no bound checking)
*/
#define ethtool_link_ksettings_del_link_mode(ptr, name, mode) \
__clear_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
/**
* ethtool_link_ksettings_test_link_mode - test bit in ksettings link mode mask
* @ptr : pointer to struct ethtool_link_ksettings
* @name : one of supported/advertising/lp_advertising
* @mode : one of the ETHTOOL_LINK_MODE_*_BIT
* (not atomic, no bound checking)
*
* Returns true/false.
*/
#define ethtool_link_ksettings_test_link_mode(ptr, name, mode) \
test_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
extern int
__ethtool_get_link_ksettings(struct net_device *dev,
struct ethtool_link_ksettings *link_ksettings);
struct kernel_ethtool_coalesce {
u8 use_cqe_mode_tx;
u8 use_cqe_mode_rx;
u32 tx_aggr_max_bytes;
u32 tx_aggr_max_frames;
u32 tx_aggr_time_usecs;
};
/**
* ethtool_intersect_link_masks - Given two link masks, AND them together
* @dst: first mask and where result is stored
* @src: second mask to intersect with
*
* Given two link mode masks, AND them together and save the result in dst.
*/
void ethtool_intersect_link_masks(struct ethtool_link_ksettings *dst,
struct ethtool_link_ksettings *src);
void ethtool_convert_legacy_u32_to_link_mode(unsigned long *dst,
u32 legacy_u32);
/* return false if src had higher bits set. lower bits always updated. */
bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32,
const unsigned long *src);
#define ETHTOOL_COALESCE_RX_USECS BIT(0)
#define ETHTOOL_COALESCE_RX_MAX_FRAMES BIT(1)
#define ETHTOOL_COALESCE_RX_USECS_IRQ BIT(2)
#define ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ BIT(3)
#define ETHTOOL_COALESCE_TX_USECS BIT(4)
#define ETHTOOL_COALESCE_TX_MAX_FRAMES BIT(5)
#define ETHTOOL_COALESCE_TX_USECS_IRQ BIT(6)
#define ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ BIT(7)
#define ETHTOOL_COALESCE_STATS_BLOCK_USECS BIT(8)
#define ETHTOOL_COALESCE_USE_ADAPTIVE_RX BIT(9)
#define ETHTOOL_COALESCE_USE_ADAPTIVE_TX BIT(10)
#define ETHTOOL_COALESCE_PKT_RATE_LOW BIT(11)
#define ETHTOOL_COALESCE_RX_USECS_LOW BIT(12)
#define ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW BIT(13)
#define ETHTOOL_COALESCE_TX_USECS_LOW BIT(14)
#define ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW BIT(15)
#define ETHTOOL_COALESCE_PKT_RATE_HIGH BIT(16)
#define ETHTOOL_COALESCE_RX_USECS_HIGH BIT(17)
#define ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH BIT(18)
#define ETHTOOL_COALESCE_TX_USECS_HIGH BIT(19)
#define ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH BIT(20)
#define ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL BIT(21)
#define ETHTOOL_COALESCE_USE_CQE_RX BIT(22)
#define ETHTOOL_COALESCE_USE_CQE_TX BIT(23)
#define ETHTOOL_COALESCE_TX_AGGR_MAX_BYTES BIT(24)
#define ETHTOOL_COALESCE_TX_AGGR_MAX_FRAMES BIT(25)
#define ETHTOOL_COALESCE_TX_AGGR_TIME_USECS BIT(26)
#define ETHTOOL_COALESCE_ALL_PARAMS GENMASK(26, 0)
#define ETHTOOL_COALESCE_USECS \
(ETHTOOL_COALESCE_RX_USECS | ETHTOOL_COALESCE_TX_USECS)
#define ETHTOOL_COALESCE_MAX_FRAMES \
(ETHTOOL_COALESCE_RX_MAX_FRAMES | ETHTOOL_COALESCE_TX_MAX_FRAMES)
#define ETHTOOL_COALESCE_USECS_IRQ \
(ETHTOOL_COALESCE_RX_USECS_IRQ | ETHTOOL_COALESCE_TX_USECS_IRQ)
#define ETHTOOL_COALESCE_MAX_FRAMES_IRQ \
(ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ | \
ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ)
#define ETHTOOL_COALESCE_USE_ADAPTIVE \
(ETHTOOL_COALESCE_USE_ADAPTIVE_RX | ETHTOOL_COALESCE_USE_ADAPTIVE_TX)
#define ETHTOOL_COALESCE_USECS_LOW_HIGH \
(ETHTOOL_COALESCE_RX_USECS_LOW | ETHTOOL_COALESCE_TX_USECS_LOW | \
ETHTOOL_COALESCE_RX_USECS_HIGH | ETHTOOL_COALESCE_TX_USECS_HIGH)
#define ETHTOOL_COALESCE_MAX_FRAMES_LOW_HIGH \
(ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW | \
ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW | \
ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH | \
ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH)
#define ETHTOOL_COALESCE_PKT_RATE_RX_USECS \
(ETHTOOL_COALESCE_USE_ADAPTIVE_RX | \
ETHTOOL_COALESCE_RX_USECS_LOW | ETHTOOL_COALESCE_RX_USECS_HIGH | \
ETHTOOL_COALESCE_PKT_RATE_LOW | ETHTOOL_COALESCE_PKT_RATE_HIGH | \
ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL)
#define ETHTOOL_COALESCE_USE_CQE \
(ETHTOOL_COALESCE_USE_CQE_RX | ETHTOOL_COALESCE_USE_CQE_TX)
#define ETHTOOL_COALESCE_TX_AGGR \
(ETHTOOL_COALESCE_TX_AGGR_MAX_BYTES | \
ETHTOOL_COALESCE_TX_AGGR_MAX_FRAMES | \
ETHTOOL_COALESCE_TX_AGGR_TIME_USECS)
#define ETHTOOL_STAT_NOT_SET (~0ULL)
static inline void ethtool_stats_init(u64 *stats, unsigned int n)
{
while (n--)
stats[n] = ETHTOOL_STAT_NOT_SET;
}
/* Basic IEEE 802.3 MAC statistics (30.3.1.1.*), not otherwise exposed
* via a more targeted API.
*/
struct ethtool_eth_mac_stats {
enum ethtool_mac_stats_src src;
struct_group(stats,
u64 FramesTransmittedOK;
u64 SingleCollisionFrames;
u64 MultipleCollisionFrames;
u64 FramesReceivedOK;
u64 FrameCheckSequenceErrors;
u64 AlignmentErrors;
u64 OctetsTransmittedOK;
u64 FramesWithDeferredXmissions;
u64 LateCollisions;
u64 FramesAbortedDueToXSColls;
u64 FramesLostDueToIntMACXmitError;
u64 CarrierSenseErrors;
u64 OctetsReceivedOK;
u64 FramesLostDueToIntMACRcvError;
u64 MulticastFramesXmittedOK;
u64 BroadcastFramesXmittedOK;
u64 FramesWithExcessiveDeferral;
u64 MulticastFramesReceivedOK;
u64 BroadcastFramesReceivedOK;
u64 InRangeLengthErrors;
u64 OutOfRangeLengthField;
u64 FrameTooLongErrors;
);
};
/* Basic IEEE 802.3 PHY statistics (30.3.2.1.*), not otherwise exposed
* via a more targeted API.
*/
struct ethtool_eth_phy_stats {
enum ethtool_mac_stats_src src;
struct_group(stats,
u64 SymbolErrorDuringCarrier;
);
};
/* Basic IEEE 802.3 MAC Ctrl statistics (30.3.3.*), not otherwise exposed
* via a more targeted API.
*/
struct ethtool_eth_ctrl_stats {
enum ethtool_mac_stats_src src;
struct_group(stats,
u64 MACControlFramesTransmitted;
u64 MACControlFramesReceived;
u64 UnsupportedOpcodesReceived;
);
};
/**
* struct ethtool_pause_stats - statistics for IEEE 802.3x pause frames
* @src: input field denoting whether stats should be queried from the eMAC or
* pMAC (if the MM layer is supported). To be ignored otherwise.
* @tx_pause_frames: transmitted pause frame count. Reported to user space
* as %ETHTOOL_A_PAUSE_STAT_TX_FRAMES.
*
* Equivalent to `30.3.4.2 aPAUSEMACCtrlFramesTransmitted`
* from the standard.
*
* @rx_pause_frames: received pause frame count. Reported to user space
* as %ETHTOOL_A_PAUSE_STAT_RX_FRAMES. Equivalent to:
*
* Equivalent to `30.3.4.3 aPAUSEMACCtrlFramesReceived`
* from the standard.
*/
struct ethtool_pause_stats {
enum ethtool_mac_stats_src src;
struct_group(stats,
u64 tx_pause_frames;
u64 rx_pause_frames;
);
};
#define ETHTOOL_MAX_LANES 8
/**
* struct ethtool_fec_stats - statistics for IEEE 802.3 FEC
* @corrected_blocks: number of received blocks corrected by FEC
* Reported to user space as %ETHTOOL_A_FEC_STAT_CORRECTED.
*
* Equivalent to `30.5.1.1.17 aFECCorrectedBlocks` from the standard.
*
* @uncorrectable_blocks: number of received blocks FEC was not able to correct
* Reported to user space as %ETHTOOL_A_FEC_STAT_UNCORR.
*
* Equivalent to `30.5.1.1.18 aFECUncorrectableBlocks` from the standard.
*
* @corrected_bits: number of bits corrected by FEC
* Similar to @corrected_blocks but counts individual bit changes,
* not entire FEC data blocks. This is a non-standard statistic.
* Reported to user space as %ETHTOOL_A_FEC_STAT_CORR_BITS.
*
* @lane: per-lane/PCS-instance counts as defined by the standard
* @total: error counts for the entire port, for drivers incapable of reporting
* per-lane stats
*
* Drivers should fill in either only total or per-lane statistics, core
* will take care of adding lane values up to produce the total.
*/
struct ethtool_fec_stats {
struct ethtool_fec_stat {
u64 total;
u64 lanes[ETHTOOL_MAX_LANES];
} corrected_blocks, uncorrectable_blocks, corrected_bits;
};
/**
* struct ethtool_rmon_hist_range - byte range for histogram statistics
* @low: low bound of the bucket (inclusive)
* @high: high bound of the bucket (inclusive)
*/
struct ethtool_rmon_hist_range {
u16 low;
u16 high;
};
#define ETHTOOL_RMON_HIST_MAX 10
/**
* struct ethtool_rmon_stats - selected RMON (RFC 2819) statistics
* @src: input field denoting whether stats should be queried from the eMAC or
* pMAC (if the MM layer is supported). To be ignored otherwise.
* @undersize_pkts: Equivalent to `etherStatsUndersizePkts` from the RFC.
* @oversize_pkts: Equivalent to `etherStatsOversizePkts` from the RFC.
* @fragments: Equivalent to `etherStatsFragments` from the RFC.
* @jabbers: Equivalent to `etherStatsJabbers` from the RFC.
* @hist: Packet counter for packet length buckets (e.g.
* `etherStatsPkts128to255Octets` from the RFC).
* @hist_tx: Tx counters in similar form to @hist, not defined in the RFC.
*
* Selection of RMON (RFC 2819) statistics which are not exposed via different
* APIs, primarily the packet-length-based counters.
* Unfortunately different designs choose different buckets beyond
* the 1024B mark (jumbo frame teritory), so the definition of the bucket
* ranges is left to the driver.
*/
struct ethtool_rmon_stats {
enum ethtool_mac_stats_src src;
struct_group(stats,
u64 undersize_pkts;
u64 oversize_pkts;
u64 fragments;
u64 jabbers;
u64 hist[ETHTOOL_RMON_HIST_MAX];
u64 hist_tx[ETHTOOL_RMON_HIST_MAX];
);
};
#define ETH_MODULE_EEPROM_PAGE_LEN 128
#define ETH_MODULE_MAX_I2C_ADDRESS 0x7f
/**
* struct ethtool_module_eeprom - EEPROM dump from specified page
* @offset: Offset within the specified EEPROM page to begin read, in bytes.
* @length: Number of bytes to read.
* @page: Page number to read from.
* @bank: Page bank number to read from, if applicable by EEPROM spec.
* @i2c_address: I2C address of a page. Value less than 0x7f expected. Most
* EEPROMs use 0x50 or 0x51.
* @data: Pointer to buffer with EEPROM data of @length size.
*
* This can be used to manage pages during EEPROM dump in ethtool and pass
* required information to the driver.
*/
struct ethtool_module_eeprom {
u32 offset;
u32 length;
u8 page;
u8 bank;
u8 i2c_address;
u8 *data;
};
/**
* struct ethtool_module_power_mode_params - module power mode parameters
* @policy: The power mode policy enforced by the host for the plug-in module.
* @mode: The operational power mode of the plug-in module. Should be filled by
* device drivers on get operations.
*/
struct ethtool_module_power_mode_params {
enum ethtool_module_power_mode_policy policy;
enum ethtool_module_power_mode mode;
};
/**
* struct ethtool_mm_state - 802.3 MAC merge layer state
* @verify_time:
* wait time between verification attempts in ms (according to clause
* 30.14.1.6 aMACMergeVerifyTime)
* @max_verify_time:
* maximum accepted value for the @verify_time variable in set requests
* @verify_status:
* state of the verification state machine of the MM layer (according to
* clause 30.14.1.2 aMACMergeStatusVerify)
* @tx_enabled:
* set if the MM layer is administratively enabled in the TX direction
* (according to clause 30.14.1.3 aMACMergeEnableTx)
* @tx_active:
* set if the MM layer is enabled in the TX direction, which makes FP
* possible (according to 30.14.1.5 aMACMergeStatusTx). This should be
* true if MM is enabled, and the verification status is either verified,
* or disabled.
* @pmac_enabled:
* set if the preemptible MAC is powered on and is able to receive
* preemptible packets and respond to verification frames.
* @verify_enabled:
* set if the Verify function of the MM layer (which sends SMD-V
* verification requests) is administratively enabled (regardless of
* whether it is currently in the ETHTOOL_MM_VERIFY_STATUS_DISABLED state
* or not), according to clause 30.14.1.4 aMACMergeVerifyDisableTx (but
* using positive rather than negative logic). The device should always
* respond to received SMD-V requests as long as @pmac_enabled is set.
* @tx_min_frag_size:
* the minimum size of non-final mPacket fragments that the link partner
* supports receiving, expressed in octets. Compared to the definition
* from clause 30.14.1.7 aMACMergeAddFragSize which is expressed in the
* range 0 to 3 (requiring a translation to the size in octets according
* to the formula 64 * (1 + addFragSize) - 4), a value in a continuous and
* unbounded range can be specified here.
* @rx_min_frag_size:
* the minimum size of non-final mPacket fragments that this device
* supports receiving, expressed in octets.
*/
struct ethtool_mm_state {
u32 verify_time;
u32 max_verify_time;
enum ethtool_mm_verify_status verify_status;
bool tx_enabled;
bool tx_active;
bool pmac_enabled;
bool verify_enabled;
u32 tx_min_frag_size;
u32 rx_min_frag_size;
};
/**
* struct ethtool_mm_cfg - 802.3 MAC merge layer configuration
* @verify_time: see struct ethtool_mm_state
* @verify_enabled: see struct ethtool_mm_state
* @tx_enabled: see struct ethtool_mm_state
* @pmac_enabled: see struct ethtool_mm_state
* @tx_min_frag_size: see struct ethtool_mm_state
*/
struct ethtool_mm_cfg {
u32 verify_time;
bool verify_enabled;
bool tx_enabled;
bool pmac_enabled;
u32 tx_min_frag_size;
};
/**
* struct ethtool_mm_stats - 802.3 MAC merge layer statistics
* @MACMergeFrameAssErrorCount:
* received MAC frames with reassembly errors
* @MACMergeFrameSmdErrorCount:
* received MAC frames/fragments rejected due to unknown or incorrect SMD
* @MACMergeFrameAssOkCount:
* received MAC frames that were successfully reassembled and passed up
* @MACMergeFragCountRx:
* number of additional correct SMD-C mPackets received due to preemption
* @MACMergeFragCountTx:
* number of additional mPackets sent due to preemption
* @MACMergeHoldCount:
* number of times the MM layer entered the HOLD state, which blocks
* transmission of preemptible traffic
*/
struct ethtool_mm_stats {
u64 MACMergeFrameAssErrorCount;
u64 MACMergeFrameSmdErrorCount;
u64 MACMergeFrameAssOkCount;
u64 MACMergeFragCountRx;
u64 MACMergeFragCountTx;
u64 MACMergeHoldCount;
};
/**
* struct ethtool_ops - optional netdev operations
* @cap_link_lanes_supported: indicates if the driver supports lanes
* parameter.
* @supported_coalesce_params: supported types of interrupt coalescing.
* @supported_ring_params: supported ring params.
* @get_drvinfo: Report driver/device information. Modern drivers no
* longer have to implement this callback. Most fields are
* correctly filled in by the core using system information, or
* populated using other driver operations.
* @get_regs_len: Get buffer length required for @get_regs
* @get_regs: Get device registers
* @get_wol: Report whether Wake-on-Lan is enabled
* @set_wol: Turn Wake-on-Lan on or off. Returns a negative error code
* or zero.
* @get_msglevel: Report driver message level. This should be the value
* of the @msg_enable field used by netif logging functions.
* @set_msglevel: Set driver message level
* @nway_reset: Restart autonegotiation. Returns a negative error code
* or zero.
* @get_link: Report whether physical link is up. Will only be called if
* the netdev is up. Should usually be set to ethtool_op_get_link(),
* which uses netif_carrier_ok().
* @get_link_ext_state: Report link extended state. Should set link_ext_state and
* link_ext_substate (link_ext_substate of 0 means link_ext_substate is unknown,
* do not attach ext_substate attribute to netlink message). If link_ext_state
* and link_ext_substate are unknown, return -ENODATA. If not implemented,
* link_ext_state and link_ext_substate will not be sent to userspace.
* @get_link_ext_stats: Read extra link-related counters.
* @get_eeprom_len: Read range of EEPROM addresses for validation of
* @get_eeprom and @set_eeprom requests.
* Returns 0 if device does not support EEPROM access.
* @get_eeprom: Read data from the device EEPROM.
* Should fill in the magic field. Don't need to check len for zero
* or wraparound. Fill in the data argument with the eeprom values
* from offset to offset + len. Update len to the amount read.
* Returns an error or zero.
* @set_eeprom: Write data to the device EEPROM.
* Should validate the magic field. Don't need to check len for zero
* or wraparound. Update len to the amount written. Returns an error
* or zero.
* @get_coalesce: Get interrupt coalescing parameters. Returns a negative
* error code or zero.
* @set_coalesce: Set interrupt coalescing parameters. Supported coalescing
* types should be set in @supported_coalesce_params.
* Returns a negative error code or zero.
* @get_ringparam: Report ring sizes
* @set_ringparam: Set ring sizes. Returns a negative error code or zero.
* @get_pause_stats: Report pause frame statistics. Drivers must not zero
* statistics which they don't report. The stats structure is initialized
* to ETHTOOL_STAT_NOT_SET indicating driver does not report statistics.
* @get_pauseparam: Report pause parameters
* @set_pauseparam: Set pause parameters. Returns a negative error code
* or zero.
* @self_test: Run specified self-tests
* @get_strings: Return a set of strings that describe the requested objects
* @set_phys_id: Identify the physical devices, e.g. by flashing an LED
* attached to it. The implementation may update the indicator
* asynchronously or synchronously, but in either case it must return
* quickly. It is initially called with the argument %ETHTOOL_ID_ACTIVE,
* and must either activate asynchronous updates and return zero, return
* a negative error or return a positive frequency for synchronous
* indication (e.g. 1 for one on/off cycle per second). If it returns
* a frequency then it will be called again at intervals with the
* argument %ETHTOOL_ID_ON or %ETHTOOL_ID_OFF and should set the state of
* the indicator accordingly. Finally, it is called with the argument
* %ETHTOOL_ID_INACTIVE and must deactivate the indicator. Returns a
* negative error code or zero.
* @get_ethtool_stats: Return extended statistics about the device.
* This is only useful if the device maintains statistics not
* included in &struct rtnl_link_stats64.
* @begin: Function to be called before any other operation. Returns a
* negative error code or zero.
* @complete: Function to be called after any other operation except
* @begin. Will be called even if the other operation failed.
* @get_priv_flags: Report driver-specific feature flags.
* @set_priv_flags: Set driver-specific feature flags. Returns a negative
* error code or zero.
* @get_sset_count: Get number of strings that @get_strings will write.
* @get_rxnfc: Get RX flow classification rules. Returns a negative
* error code or zero.
* @set_rxnfc: Set RX flow classification rules. Returns a negative
* error code or zero.
* @flash_device: Write a firmware image to device's flash memory.
* Returns a negative error code or zero.
* @reset: Reset (part of) the device, as specified by a bitmask of
* flags from &enum ethtool_reset_flags. Returns a negative
* error code or zero.
* @get_rxfh_key_size: Get the size of the RX flow hash key.
* Returns zero if not supported for this specific device.
* @get_rxfh_indir_size: Get the size of the RX flow hash indirection table.
* Returns zero if not supported for this specific device.
* @get_rxfh: Get the contents of the RX flow hash indirection table, hash key
* and/or hash function.
* Returns a negative error code or zero.
* @set_rxfh: Set the contents of the RX flow hash indirection table, hash
* key, and/or hash function. Arguments which are set to %NULL or zero
* will remain unchanged.
* Returns a negative error code or zero. An error code must be returned
* if at least one unsupported change was requested.
* @get_rxfh_context: Get the contents of the RX flow hash indirection table,
* hash key, and/or hash function assiciated to the given rss context.
* Returns a negative error code or zero.
* @set_rxfh_context: Create, remove and configure RSS contexts. Allows setting
* the contents of the RX flow hash indirection table, hash key, and/or
* hash function associated to the given context. Arguments which are set
* to %NULL or zero will remain unchanged.
* Returns a negative error code or zero. An error code must be returned
* if at least one unsupported change was requested.
* @get_channels: Get number of channels.
* @set_channels: Set number of channels. Returns a negative error code or
* zero.
* @get_dump_flag: Get dump flag indicating current dump length, version,
* and flag of the device.
* @get_dump_data: Get dump data.
* @set_dump: Set dump specific flags to the device.
* @get_ts_info: Get the time stamping and PTP hardware clock capabilities.
* It may be called with RCU, or rtnl or reference on the device.
* Drivers supporting transmit time stamps in software should set this to
* ethtool_op_get_ts_info().
* @get_module_info: Get the size and type of the eeprom contained within
* a plug-in module.
* @get_module_eeprom: Get the eeprom information from the plug-in module
* @get_eee: Get Energy-Efficient (EEE) supported and status.
* @set_eee: Set EEE status (enable/disable) as well as LPI timers.
* @get_tunable: Read the value of a driver / device tunable.
* @set_tunable: Set the value of a driver / device tunable.
* @get_per_queue_coalesce: Get interrupt coalescing parameters per queue.
* It must check that the given queue number is valid. If neither a RX nor
* a TX queue has this number, return -EINVAL. If only a RX queue or a TX
* queue has this number, set the inapplicable fields to ~0 and return 0.
* Returns a negative error code or zero.
* @set_per_queue_coalesce: Set interrupt coalescing parameters per queue.
* It must check that the given queue number is valid. If neither a RX nor
* a TX queue has this number, return -EINVAL. If only a RX queue or a TX
* queue has this number, ignore the inapplicable fields. Supported
* coalescing types should be set in @supported_coalesce_params.
* Returns a negative error code or zero.
* @get_link_ksettings: Get various device settings including Ethernet link
* settings. The %cmd and %link_mode_masks_nwords fields should be
* ignored (use %__ETHTOOL_LINK_MODE_MASK_NBITS instead of the latter),
* any change to them will be overwritten by kernel. Returns a negative
* error code or zero.
* @set_link_ksettings: Set various device settings including Ethernet link
* settings. The %cmd and %link_mode_masks_nwords fields should be
* ignored (use %__ETHTOOL_LINK_MODE_MASK_NBITS instead of the latter),
* any change to them will be overwritten by kernel. Returns a negative
* error code or zero.
* @get_fec_stats: Report FEC statistics.
* Core will sum up per-lane stats to get the total.
* Drivers must not zero statistics which they don't report. The stats
* structure is initialized to ETHTOOL_STAT_NOT_SET indicating driver does
* not report statistics.
* @get_fecparam: Get the network device Forward Error Correction parameters.
* @set_fecparam: Set the network device Forward Error Correction parameters.
* @get_ethtool_phy_stats: Return extended statistics about the PHY device.
* This is only useful if the device maintains PHY statistics and
* cannot use the standard PHY library helpers.
* @get_phy_tunable: Read the value of a PHY tunable.
* @set_phy_tunable: Set the value of a PHY tunable.
* @get_module_eeprom_by_page: Get a region of plug-in module EEPROM data from
* specified page. Returns a negative error code or the amount of bytes
* read.
* @get_eth_phy_stats: Query some of the IEEE 802.3 PHY statistics.
* @get_eth_mac_stats: Query some of the IEEE 802.3 MAC statistics.
* @get_eth_ctrl_stats: Query some of the IEEE 802.3 MAC Ctrl statistics.
* @get_rmon_stats: Query some of the RMON (RFC 2819) statistics.
* Set %ranges to a pointer to zero-terminated array of byte ranges.
* @get_module_power_mode: Get the power mode policy for the plug-in module
* used by the network device and its operational power mode, if
* plugged-in.
* @set_module_power_mode: Set the power mode policy for the plug-in module
* used by the network device.
* @get_mm: Query the 802.3 MAC Merge layer state.
* @set_mm: Set the 802.3 MAC Merge layer parameters.
* @get_mm_stats: Query the 802.3 MAC Merge layer statistics.
*
* All operations are optional (i.e. the function pointer may be set
* to %NULL) and callers must take this into account. Callers must
* 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.
*/
struct ethtool_ops {
u32 cap_link_lanes_supported:1;
u32 supported_coalesce_params;
u32 supported_ring_params;
void (*get_drvinfo)(struct net_device *, struct ethtool_drvinfo *);
int (*get_regs_len)(struct net_device *);
void (*get_regs)(struct net_device *, struct ethtool_regs *, void *);
void (*get_wol)(struct net_device *, struct ethtool_wolinfo *);
int (*set_wol)(struct net_device *, struct ethtool_wolinfo *);
u32 (*get_msglevel)(struct net_device *);
void (*set_msglevel)(struct net_device *, u32);
int (*nway_reset)(struct net_device *);
u32 (*get_link)(struct net_device *);
int (*get_link_ext_state)(struct net_device *,
struct ethtool_link_ext_state_info *);
void (*get_link_ext_stats)(struct net_device *dev,
struct ethtool_link_ext_stats *stats);
int (*get_eeprom_len)(struct net_device *);
int (*get_eeprom)(struct net_device *,
struct ethtool_eeprom *, u8 *);
int (*set_eeprom)(struct net_device *,
struct ethtool_eeprom *, u8 *);
int (*get_coalesce)(struct net_device *,
struct ethtool_coalesce *,
struct kernel_ethtool_coalesce *,
struct netlink_ext_ack *);
int (*set_coalesce)(struct net_device *,
struct ethtool_coalesce *,
struct kernel_ethtool_coalesce *,
struct netlink_ext_ack *);
void (*get_ringparam)(struct net_device *,
struct ethtool_ringparam *,
struct kernel_ethtool_ringparam *,
struct netlink_ext_ack *);
int (*set_ringparam)(struct net_device *,
struct ethtool_ringparam *,
struct kernel_ethtool_ringparam *,
struct netlink_ext_ack *);
void (*get_pause_stats)(struct net_device *dev,
struct ethtool_pause_stats *pause_stats);
void (*get_pauseparam)(struct net_device *,
struct ethtool_pauseparam*);
int (*set_pauseparam)(struct net_device *,
struct ethtool_pauseparam*);
void (*self_test)(struct net_device *, struct ethtool_test *, u64 *);
void (*get_strings)(struct net_device *, u32 stringset, u8 *);
int (*set_phys_id)(struct net_device *, enum ethtool_phys_id_state);
void (*get_ethtool_stats)(struct net_device *,
struct ethtool_stats *, u64 *);
int (*begin)(struct net_device *);
void (*complete)(struct net_device *);
u32 (*get_priv_flags)(struct net_device *);
int (*set_priv_flags)(struct net_device *, u32);
int (*get_sset_count)(struct net_device *, int);
int (*get_rxnfc)(struct net_device *,
struct ethtool_rxnfc *, u32 *rule_locs);
int (*set_rxnfc)(struct net_device *, struct ethtool_rxnfc *);
int (*flash_device)(struct net_device *, struct ethtool_flash *);
int (*reset)(struct net_device *, u32 *);
u32 (*get_rxfh_key_size)(struct net_device *);
u32 (*get_rxfh_indir_size)(struct net_device *);
int (*get_rxfh)(struct net_device *, u32 *indir, u8 *key,
u8 *hfunc);
int (*set_rxfh)(struct net_device *, const u32 *indir,
const u8 *key, const u8 hfunc);
int (*get_rxfh_context)(struct net_device *, u32 *indir, u8 *key,
u8 *hfunc, u32 rss_context);
int (*set_rxfh_context)(struct net_device *, const u32 *indir,
const u8 *key, const u8 hfunc,
u32 *rss_context, bool delete);
void (*get_channels)(struct net_device *, struct ethtool_channels *);
int (*set_channels)(struct net_device *, struct ethtool_channels *);
int (*get_dump_flag)(struct net_device *, struct ethtool_dump *);
int (*get_dump_data)(struct net_device *,
struct ethtool_dump *, void *);
int (*set_dump)(struct net_device *, struct ethtool_dump *);
int (*get_ts_info)(struct net_device *, struct ethtool_ts_info *);
int (*get_module_info)(struct net_device *,
struct ethtool_modinfo *);
int (*get_module_eeprom)(struct net_device *,
struct ethtool_eeprom *, u8 *);
int (*get_eee)(struct net_device *, struct ethtool_eee *);
int (*set_eee)(struct net_device *, struct ethtool_eee *);
int (*get_tunable)(struct net_device *,
const struct ethtool_tunable *, void *);
int (*set_tunable)(struct net_device *,
const struct ethtool_tunable *, const void *);
int (*get_per_queue_coalesce)(struct net_device *, u32,
struct ethtool_coalesce *);
int (*set_per_queue_coalesce)(struct net_device *, u32,
struct ethtool_coalesce *);
int (*get_link_ksettings)(struct net_device *,
struct ethtool_link_ksettings *);
int (*set_link_ksettings)(struct net_device *,
const struct ethtool_link_ksettings *);
void (*get_fec_stats)(struct net_device *dev,
struct ethtool_fec_stats *fec_stats);
int (*get_fecparam)(struct net_device *,
struct ethtool_fecparam *);
int (*set_fecparam)(struct net_device *,
struct ethtool_fecparam *);
void (*get_ethtool_phy_stats)(struct net_device *,
struct ethtool_stats *, u64 *);
int (*get_phy_tunable)(struct net_device *,
const struct ethtool_tunable *, void *);
int (*set_phy_tunable)(struct net_device *,
const struct ethtool_tunable *, const void *);
int (*get_module_eeprom_by_page)(struct net_device *dev,
const struct ethtool_module_eeprom *page,
struct netlink_ext_ack *extack);
void (*get_eth_phy_stats)(struct net_device *dev,
struct ethtool_eth_phy_stats *phy_stats);
void (*get_eth_mac_stats)(struct net_device *dev,
struct ethtool_eth_mac_stats *mac_stats);
void (*get_eth_ctrl_stats)(struct net_device *dev,
struct ethtool_eth_ctrl_stats *ctrl_stats);
void (*get_rmon_stats)(struct net_device *dev,
struct ethtool_rmon_stats *rmon_stats,
const struct ethtool_rmon_hist_range **ranges);
int (*get_module_power_mode)(struct net_device *dev,
struct ethtool_module_power_mode_params *params,
struct netlink_ext_ack *extack);
int (*set_module_power_mode)(struct net_device *dev,
const struct ethtool_module_power_mode_params *params,
struct netlink_ext_ack *extack);
int (*get_mm)(struct net_device *dev, struct ethtool_mm_state *state);
int (*set_mm)(struct net_device *dev, struct ethtool_mm_cfg *cfg,
struct netlink_ext_ack *extack);
void (*get_mm_stats)(struct net_device *dev, struct ethtool_mm_stats *stats);
KABI_RESERVE(1);
KABI_RESERVE(2);
KABI_RESERVE(3);
KABI_RESERVE(4);
KABI_RESERVE(5);
KABI_RESERVE(6);
KABI_RESERVE(7);
KABI_RESERVE(8);
};
int ethtool_check_ops(const struct ethtool_ops *ops);
struct ethtool_rx_flow_rule {
struct flow_rule *rule;
unsigned long priv[];
};
struct ethtool_rx_flow_spec_input {
const struct ethtool_rx_flow_spec *fs;
u32 rss_ctx;
};
struct ethtool_rx_flow_rule *
ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input);
void ethtool_rx_flow_rule_destroy(struct ethtool_rx_flow_rule *rule);
bool ethtool_virtdev_validate_cmd(const struct ethtool_link_ksettings *cmd);
int ethtool_virtdev_set_link_ksettings(struct net_device *dev,
const struct ethtool_link_ksettings *cmd,
u32 *dev_speed, u8 *dev_duplex);
struct phy_device;
struct phy_tdr_config;
struct phy_plca_cfg;
struct phy_plca_status;
/**
* struct ethtool_phy_ops - Optional PHY device options
* @get_sset_count: Get number of strings that @get_strings will write.
* @get_strings: Return a set of strings that describe the requested objects
* @get_stats: Return extended statistics about the PHY device.
* @get_plca_cfg: Return PLCA configuration.
* @set_plca_cfg: Set PLCA configuration.
* @get_plca_status: Get PLCA configuration.
* @start_cable_test: Start a cable test
* @start_cable_test_tdr: Start a Time Domain Reflectometry cable test
*
* All operations are optional (i.e. the function pointer may be set to %NULL)
* and callers must take this into account. Callers must hold the RTNL lock.
*/
struct ethtool_phy_ops {
int (*get_sset_count)(struct phy_device *dev);
int (*get_strings)(struct phy_device *dev, u8 *data);
int (*get_stats)(struct phy_device *dev,
struct ethtool_stats *stats, u64 *data);
int (*get_plca_cfg)(struct phy_device *dev,
struct phy_plca_cfg *plca_cfg);
int (*set_plca_cfg)(struct phy_device *dev,
const struct phy_plca_cfg *plca_cfg,
struct netlink_ext_ack *extack);
int (*get_plca_status)(struct phy_device *dev,
struct phy_plca_status *plca_st);
int (*start_cable_test)(struct phy_device *phydev,
struct netlink_ext_ack *extack);
int (*start_cable_test_tdr)(struct phy_device *phydev,
struct netlink_ext_ack *extack,
const struct phy_tdr_config *config);
};
/**
* ethtool_set_ethtool_phy_ops - Set the ethtool_phy_ops singleton
* @ops: Ethtool PHY operations to set
*/
void ethtool_set_ethtool_phy_ops(const struct ethtool_phy_ops *ops);
/**
* ethtool_params_from_link_mode - Derive link parameters from a given link mode
* @link_ksettings: Link parameters to be derived from the link mode
* @link_mode: Link mode
*/
void
ethtool_params_from_link_mode(struct ethtool_link_ksettings *link_ksettings,
enum ethtool_link_mode_bit_indices link_mode);
/**
* ethtool_get_phc_vclocks - Derive phc vclocks information, and caller
* is responsible to free memory of vclock_index
* @dev: pointer to net_device structure
* @vclock_index: pointer to pointer of vclock index
*
* Return number of phc vclocks
*/
int ethtool_get_phc_vclocks(struct net_device *dev, int **vclock_index);
/* Some generic methods drivers may use in their ethtool_ops */
u32 ethtool_op_get_link(struct net_device *dev);
int ethtool_op_get_ts_info(struct net_device *dev, struct ethtool_ts_info *eti);
/**
* ethtool_mm_frag_size_add_to_min - Translate (standard) additional fragment
* size expressed as multiplier into (absolute) minimum fragment size
* value expressed in octets
* @val_add: Value of addFragSize multiplier
*/
static inline u32 ethtool_mm_frag_size_add_to_min(u32 val_add)
{
return (ETH_ZLEN + ETH_FCS_LEN) * (1 + val_add) - ETH_FCS_LEN;
}
/**
* ethtool_mm_frag_size_min_to_add - Translate (absolute) minimum fragment size
* expressed in octets into (standard) additional fragment size expressed
* as multiplier
* @val_min: Value of addFragSize variable in octets
* @val_add: Pointer where the standard addFragSize value is to be returned
* @extack: Netlink extended ack
*
* Translate a value in octets to one of 0, 1, 2, 3 according to the reverse
* application of the 802.3 formula 64 * (1 + addFragSize) - 4. To be called
* by drivers which do not support programming the minimum fragment size to a
* continuous range. Returns error on other fragment length values.
*/
static inline int ethtool_mm_frag_size_min_to_add(u32 val_min, u32 *val_add,
struct netlink_ext_ack *extack)
{
u32 add_frag_size;
for (add_frag_size = 0; add_frag_size < 4; add_frag_size++) {
if (ethtool_mm_frag_size_add_to_min(add_frag_size) == val_min) {
*val_add = add_frag_size;
return 0;
}
}
NL_SET_ERR_MSG_MOD(extack,
"minFragSize required to be one of 60, 124, 188 or 252");
return -EINVAL;
}
/**
* ethtool_sprintf - Write formatted string to ethtool string data
* @data: Pointer to a pointer to the start of string to update
* @fmt: Format of string to write
*
* Write formatted string to *data. Update *data to point at start of
* next string.
*/
extern __printf(2, 3) void ethtool_sprintf(u8 **data, const char *fmt, ...);
#endif /* _LINUX_ETHTOOL_H */
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