1 /* SPDX-License-Identifier: GPL-2.0 */
3 * ethtool.h: Defines for Linux ethtool.
11 * Portions Copyright (C) Sun Microsystems 2008
13 #ifndef _LINUX_ETHTOOL_H
14 #define _LINUX_ETHTOOL_H
16 #include <linux/bitmap.h>
17 #include <linux/compat.h>
18 #include <linux/netlink.h>
19 #include <uapi/linux/ethtool.h>
21 struct compat_ethtool_rx_flow_spec {
23 union ethtool_flow_union h_u;
24 struct ethtool_flow_ext h_ext;
25 union ethtool_flow_union m_u;
26 struct ethtool_flow_ext m_ext;
27 compat_u64 ring_cookie;
31 struct compat_ethtool_rxnfc {
35 struct compat_ethtool_rx_flow_spec fs;
40 #include <linux/rculist.h>
43 * enum ethtool_phys_id_state - indicator state for physical identification
44 * @ETHTOOL_ID_INACTIVE: Physical ID indicator should be deactivated
45 * @ETHTOOL_ID_ACTIVE: Physical ID indicator should be activated
46 * @ETHTOOL_ID_ON: LED should be turned on (used iff %ETHTOOL_ID_ACTIVE
48 * @ETHTOOL_ID_OFF: LED should be turned off (used iff %ETHTOOL_ID_ACTIVE
51 enum ethtool_phys_id_state {
59 ETH_RSS_HASH_TOP_BIT, /* Configurable RSS hash function - Toeplitz */
60 ETH_RSS_HASH_XOR_BIT, /* Configurable RSS hash function - Xor */
61 ETH_RSS_HASH_CRC32_BIT, /* Configurable RSS hash function - Crc32 */
64 * Add your fresh new hash function bits above and remember to update
65 * rss_hash_func_strings[] in ethtool.c
67 ETH_RSS_HASH_FUNCS_COUNT
71 * struct kernel_ethtool_ringparam - RX/TX ring configuration
72 * @rx_buf_len: Current length of buffers on the rx ring.
73 * @tcp_data_split: Scatter packet headers and data to separate buffers
74 * @cqe_size: Size of TX/RX completion queue event
76 struct kernel_ethtool_ringparam {
83 * enum ethtool_supported_ring_param - indicator caps for setting ring params
84 * @ETHTOOL_RING_USE_RX_BUF_LEN: capture for setting rx_buf_len
85 * @ETHTOOL_RING_USE_CQE_SIZE: capture for setting cqe_size
87 enum ethtool_supported_ring_param {
88 ETHTOOL_RING_USE_RX_BUF_LEN = BIT(0),
89 ETHTOOL_RING_USE_CQE_SIZE = BIT(1),
92 #define __ETH_RSS_HASH_BIT(bit) ((u32)1 << (bit))
93 #define __ETH_RSS_HASH(name) __ETH_RSS_HASH_BIT(ETH_RSS_HASH_##name##_BIT)
95 #define ETH_RSS_HASH_TOP __ETH_RSS_HASH(TOP)
96 #define ETH_RSS_HASH_XOR __ETH_RSS_HASH(XOR)
97 #define ETH_RSS_HASH_CRC32 __ETH_RSS_HASH(CRC32)
99 #define ETH_RSS_HASH_UNKNOWN 0
100 #define ETH_RSS_HASH_NO_CHANGE 0
103 struct netlink_ext_ack;
105 /* Some generic methods drivers may use in their ethtool_ops */
106 u32 ethtool_op_get_link(struct net_device *dev);
107 int ethtool_op_get_ts_info(struct net_device *dev, struct ethtool_ts_info *eti);
110 /* Link extended state and substate. */
111 struct ethtool_link_ext_state_info {
112 enum ethtool_link_ext_state link_ext_state;
114 enum ethtool_link_ext_substate_autoneg autoneg;
115 enum ethtool_link_ext_substate_link_training link_training;
116 enum ethtool_link_ext_substate_link_logical_mismatch link_logical_mismatch;
117 enum ethtool_link_ext_substate_bad_signal_integrity bad_signal_integrity;
118 enum ethtool_link_ext_substate_cable_issue cable_issue;
119 enum ethtool_link_ext_substate_module module;
120 u32 __link_ext_substate;
125 * ethtool_rxfh_indir_default - get default value for RX flow hash indirection
126 * @index: Index in RX flow hash indirection table
127 * @n_rx_rings: Number of RX rings to use
129 * This function provides the default policy for RX flow hash indirection.
131 static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings)
133 return index % n_rx_rings;
136 /* declare a link mode bitmap */
137 #define __ETHTOOL_DECLARE_LINK_MODE_MASK(name) \
138 DECLARE_BITMAP(name, __ETHTOOL_LINK_MODE_MASK_NBITS)
140 /* drivers must ignore base.cmd and base.link_mode_masks_nwords
141 * fields, but they are allowed to overwrite them (will be ignored).
143 struct ethtool_link_ksettings {
144 struct ethtool_link_settings base;
146 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
147 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
148 __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising);
154 * ethtool_link_ksettings_zero_link_mode - clear link_ksettings link mode mask
155 * @ptr : pointer to struct ethtool_link_ksettings
156 * @name : one of supported/advertising/lp_advertising
158 #define ethtool_link_ksettings_zero_link_mode(ptr, name) \
159 bitmap_zero((ptr)->link_modes.name, __ETHTOOL_LINK_MODE_MASK_NBITS)
162 * ethtool_link_ksettings_add_link_mode - set bit in link_ksettings
164 * @ptr : pointer to struct ethtool_link_ksettings
165 * @name : one of supported/advertising/lp_advertising
166 * @mode : one of the ETHTOOL_LINK_MODE_*_BIT
167 * (not atomic, no bound checking)
169 #define ethtool_link_ksettings_add_link_mode(ptr, name, mode) \
170 __set_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
173 * ethtool_link_ksettings_del_link_mode - clear bit in link_ksettings
175 * @ptr : pointer to struct ethtool_link_ksettings
176 * @name : one of supported/advertising/lp_advertising
177 * @mode : one of the ETHTOOL_LINK_MODE_*_BIT
178 * (not atomic, no bound checking)
180 #define ethtool_link_ksettings_del_link_mode(ptr, name, mode) \
181 __clear_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
184 * ethtool_link_ksettings_test_link_mode - test bit in ksettings link mode mask
185 * @ptr : pointer to struct ethtool_link_ksettings
186 * @name : one of supported/advertising/lp_advertising
187 * @mode : one of the ETHTOOL_LINK_MODE_*_BIT
188 * (not atomic, no bound checking)
190 * Returns true/false.
192 #define ethtool_link_ksettings_test_link_mode(ptr, name, mode) \
193 test_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
196 __ethtool_get_link_ksettings(struct net_device *dev,
197 struct ethtool_link_ksettings *link_ksettings);
199 struct kernel_ethtool_coalesce {
205 * ethtool_intersect_link_masks - Given two link masks, AND them together
206 * @dst: first mask and where result is stored
207 * @src: second mask to intersect with
209 * Given two link mode masks, AND them together and save the result in dst.
211 void ethtool_intersect_link_masks(struct ethtool_link_ksettings *dst,
212 struct ethtool_link_ksettings *src);
214 void ethtool_convert_legacy_u32_to_link_mode(unsigned long *dst,
217 /* return false if src had higher bits set. lower bits always updated. */
218 bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32,
219 const unsigned long *src);
221 #define ETHTOOL_COALESCE_RX_USECS BIT(0)
222 #define ETHTOOL_COALESCE_RX_MAX_FRAMES BIT(1)
223 #define ETHTOOL_COALESCE_RX_USECS_IRQ BIT(2)
224 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ BIT(3)
225 #define ETHTOOL_COALESCE_TX_USECS BIT(4)
226 #define ETHTOOL_COALESCE_TX_MAX_FRAMES BIT(5)
227 #define ETHTOOL_COALESCE_TX_USECS_IRQ BIT(6)
228 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ BIT(7)
229 #define ETHTOOL_COALESCE_STATS_BLOCK_USECS BIT(8)
230 #define ETHTOOL_COALESCE_USE_ADAPTIVE_RX BIT(9)
231 #define ETHTOOL_COALESCE_USE_ADAPTIVE_TX BIT(10)
232 #define ETHTOOL_COALESCE_PKT_RATE_LOW BIT(11)
233 #define ETHTOOL_COALESCE_RX_USECS_LOW BIT(12)
234 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW BIT(13)
235 #define ETHTOOL_COALESCE_TX_USECS_LOW BIT(14)
236 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW BIT(15)
237 #define ETHTOOL_COALESCE_PKT_RATE_HIGH BIT(16)
238 #define ETHTOOL_COALESCE_RX_USECS_HIGH BIT(17)
239 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH BIT(18)
240 #define ETHTOOL_COALESCE_TX_USECS_HIGH BIT(19)
241 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH BIT(20)
242 #define ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL BIT(21)
243 #define ETHTOOL_COALESCE_USE_CQE_RX BIT(22)
244 #define ETHTOOL_COALESCE_USE_CQE_TX BIT(23)
245 #define ETHTOOL_COALESCE_ALL_PARAMS GENMASK(23, 0)
247 #define ETHTOOL_COALESCE_USECS \
248 (ETHTOOL_COALESCE_RX_USECS | ETHTOOL_COALESCE_TX_USECS)
249 #define ETHTOOL_COALESCE_MAX_FRAMES \
250 (ETHTOOL_COALESCE_RX_MAX_FRAMES | ETHTOOL_COALESCE_TX_MAX_FRAMES)
251 #define ETHTOOL_COALESCE_USECS_IRQ \
252 (ETHTOOL_COALESCE_RX_USECS_IRQ | ETHTOOL_COALESCE_TX_USECS_IRQ)
253 #define ETHTOOL_COALESCE_MAX_FRAMES_IRQ \
254 (ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ | \
255 ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ)
256 #define ETHTOOL_COALESCE_USE_ADAPTIVE \
257 (ETHTOOL_COALESCE_USE_ADAPTIVE_RX | ETHTOOL_COALESCE_USE_ADAPTIVE_TX)
258 #define ETHTOOL_COALESCE_USECS_LOW_HIGH \
259 (ETHTOOL_COALESCE_RX_USECS_LOW | ETHTOOL_COALESCE_TX_USECS_LOW | \
260 ETHTOOL_COALESCE_RX_USECS_HIGH | ETHTOOL_COALESCE_TX_USECS_HIGH)
261 #define ETHTOOL_COALESCE_MAX_FRAMES_LOW_HIGH \
262 (ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW | \
263 ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW | \
264 ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH | \
265 ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH)
266 #define ETHTOOL_COALESCE_PKT_RATE_RX_USECS \
267 (ETHTOOL_COALESCE_USE_ADAPTIVE_RX | \
268 ETHTOOL_COALESCE_RX_USECS_LOW | ETHTOOL_COALESCE_RX_USECS_HIGH | \
269 ETHTOOL_COALESCE_PKT_RATE_LOW | ETHTOOL_COALESCE_PKT_RATE_HIGH | \
270 ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL)
271 #define ETHTOOL_COALESCE_USE_CQE \
272 (ETHTOOL_COALESCE_USE_CQE_RX | ETHTOOL_COALESCE_USE_CQE_TX)
274 #define ETHTOOL_STAT_NOT_SET (~0ULL)
276 static inline void ethtool_stats_init(u64 *stats, unsigned int n)
279 stats[n] = ETHTOOL_STAT_NOT_SET;
282 /* Basic IEEE 802.3 MAC statistics (30.3.1.1.*), not otherwise exposed
283 * via a more targeted API.
285 struct ethtool_eth_mac_stats {
286 u64 FramesTransmittedOK;
287 u64 SingleCollisionFrames;
288 u64 MultipleCollisionFrames;
289 u64 FramesReceivedOK;
290 u64 FrameCheckSequenceErrors;
292 u64 OctetsTransmittedOK;
293 u64 FramesWithDeferredXmissions;
295 u64 FramesAbortedDueToXSColls;
296 u64 FramesLostDueToIntMACXmitError;
297 u64 CarrierSenseErrors;
298 u64 OctetsReceivedOK;
299 u64 FramesLostDueToIntMACRcvError;
300 u64 MulticastFramesXmittedOK;
301 u64 BroadcastFramesXmittedOK;
302 u64 FramesWithExcessiveDeferral;
303 u64 MulticastFramesReceivedOK;
304 u64 BroadcastFramesReceivedOK;
305 u64 InRangeLengthErrors;
306 u64 OutOfRangeLengthField;
307 u64 FrameTooLongErrors;
310 /* Basic IEEE 802.3 PHY statistics (30.3.2.1.*), not otherwise exposed
311 * via a more targeted API.
313 struct ethtool_eth_phy_stats {
314 u64 SymbolErrorDuringCarrier;
317 /* Basic IEEE 802.3 MAC Ctrl statistics (30.3.3.*), not otherwise exposed
318 * via a more targeted API.
320 struct ethtool_eth_ctrl_stats {
321 u64 MACControlFramesTransmitted;
322 u64 MACControlFramesReceived;
323 u64 UnsupportedOpcodesReceived;
327 * struct ethtool_pause_stats - statistics for IEEE 802.3x pause frames
328 * @tx_pause_frames: transmitted pause frame count. Reported to user space
329 * as %ETHTOOL_A_PAUSE_STAT_TX_FRAMES.
331 * Equivalent to `30.3.4.2 aPAUSEMACCtrlFramesTransmitted`
334 * @rx_pause_frames: received pause frame count. Reported to user space
335 * as %ETHTOOL_A_PAUSE_STAT_RX_FRAMES. Equivalent to:
337 * Equivalent to `30.3.4.3 aPAUSEMACCtrlFramesReceived`
340 struct ethtool_pause_stats {
345 #define ETHTOOL_MAX_LANES 8
348 * struct ethtool_fec_stats - statistics for IEEE 802.3 FEC
349 * @corrected_blocks: number of received blocks corrected by FEC
350 * Reported to user space as %ETHTOOL_A_FEC_STAT_CORRECTED.
352 * Equivalent to `30.5.1.1.17 aFECCorrectedBlocks` from the standard.
354 * @uncorrectable_blocks: number of received blocks FEC was not able to correct
355 * Reported to user space as %ETHTOOL_A_FEC_STAT_UNCORR.
357 * Equivalent to `30.5.1.1.18 aFECUncorrectableBlocks` from the standard.
359 * @corrected_bits: number of bits corrected by FEC
360 * Similar to @corrected_blocks but counts individual bit changes,
361 * not entire FEC data blocks. This is a non-standard statistic.
362 * Reported to user space as %ETHTOOL_A_FEC_STAT_CORR_BITS.
364 * @lane: per-lane/PCS-instance counts as defined by the standard
365 * @total: error counts for the entire port, for drivers incapable of reporting
368 * Drivers should fill in either only total or per-lane statistics, core
369 * will take care of adding lane values up to produce the total.
371 struct ethtool_fec_stats {
372 struct ethtool_fec_stat {
374 u64 lanes[ETHTOOL_MAX_LANES];
375 } corrected_blocks, uncorrectable_blocks, corrected_bits;
379 * struct ethtool_rmon_hist_range - byte range for histogram statistics
380 * @low: low bound of the bucket (inclusive)
381 * @high: high bound of the bucket (inclusive)
383 struct ethtool_rmon_hist_range {
388 #define ETHTOOL_RMON_HIST_MAX 10
391 * struct ethtool_rmon_stats - selected RMON (RFC 2819) statistics
392 * @undersize_pkts: Equivalent to `etherStatsUndersizePkts` from the RFC.
393 * @oversize_pkts: Equivalent to `etherStatsOversizePkts` from the RFC.
394 * @fragments: Equivalent to `etherStatsFragments` from the RFC.
395 * @jabbers: Equivalent to `etherStatsJabbers` from the RFC.
396 * @hist: Packet counter for packet length buckets (e.g.
397 * `etherStatsPkts128to255Octets` from the RFC).
398 * @hist_tx: Tx counters in similar form to @hist, not defined in the RFC.
400 * Selection of RMON (RFC 2819) statistics which are not exposed via different
401 * APIs, primarily the packet-length-based counters.
402 * Unfortunately different designs choose different buckets beyond
403 * the 1024B mark (jumbo frame teritory), so the definition of the bucket
404 * ranges is left to the driver.
406 struct ethtool_rmon_stats {
412 u64 hist[ETHTOOL_RMON_HIST_MAX];
413 u64 hist_tx[ETHTOOL_RMON_HIST_MAX];
416 #define ETH_MODULE_EEPROM_PAGE_LEN 128
417 #define ETH_MODULE_MAX_I2C_ADDRESS 0x7f
420 * struct ethtool_module_eeprom - EEPROM dump from specified page
421 * @offset: Offset within the specified EEPROM page to begin read, in bytes.
422 * @length: Number of bytes to read.
423 * @page: Page number to read from.
424 * @bank: Page bank number to read from, if applicable by EEPROM spec.
425 * @i2c_address: I2C address of a page. Value less than 0x7f expected. Most
426 * EEPROMs use 0x50 or 0x51.
427 * @data: Pointer to buffer with EEPROM data of @length size.
429 * This can be used to manage pages during EEPROM dump in ethtool and pass
430 * required information to the driver.
432 struct ethtool_module_eeprom {
442 * struct ethtool_module_power_mode_params - module power mode parameters
443 * @policy: The power mode policy enforced by the host for the plug-in module.
444 * @mode: The operational power mode of the plug-in module. Should be filled by
445 * device drivers on get operations.
447 struct ethtool_module_power_mode_params {
448 enum ethtool_module_power_mode_policy policy;
449 enum ethtool_module_power_mode mode;
453 * struct ethtool_ops - optional netdev operations
454 * @cap_link_lanes_supported: indicates if the driver supports lanes
456 * @supported_coalesce_params: supported types of interrupt coalescing.
457 * @supported_ring_params: supported ring params.
458 * @get_drvinfo: Report driver/device information. Should only set the
459 * @driver, @version, @fw_version and @bus_info fields. If not
460 * implemented, the @driver and @bus_info fields will be filled in
461 * according to the netdev's parent device.
462 * @get_regs_len: Get buffer length required for @get_regs
463 * @get_regs: Get device registers
464 * @get_wol: Report whether Wake-on-Lan is enabled
465 * @set_wol: Turn Wake-on-Lan on or off. Returns a negative error code
467 * @get_msglevel: Report driver message level. This should be the value
468 * of the @msg_enable field used by netif logging functions.
469 * @set_msglevel: Set driver message level
470 * @nway_reset: Restart autonegotiation. Returns a negative error code
472 * @get_link: Report whether physical link is up. Will only be called if
473 * the netdev is up. Should usually be set to ethtool_op_get_link(),
474 * which uses netif_carrier_ok().
475 * @get_link_ext_state: Report link extended state. Should set link_ext_state and
476 * link_ext_substate (link_ext_substate of 0 means link_ext_substate is unknown,
477 * do not attach ext_substate attribute to netlink message). If link_ext_state
478 * and link_ext_substate are unknown, return -ENODATA. If not implemented,
479 * link_ext_state and link_ext_substate will not be sent to userspace.
480 * @get_eeprom_len: Read range of EEPROM addresses for validation of
481 * @get_eeprom and @set_eeprom requests.
482 * Returns 0 if device does not support EEPROM access.
483 * @get_eeprom: Read data from the device EEPROM.
484 * Should fill in the magic field. Don't need to check len for zero
485 * or wraparound. Fill in the data argument with the eeprom values
486 * from offset to offset + len. Update len to the amount read.
487 * Returns an error or zero.
488 * @set_eeprom: Write data to the device EEPROM.
489 * Should validate the magic field. Don't need to check len for zero
490 * or wraparound. Update len to the amount written. Returns an error
492 * @get_coalesce: Get interrupt coalescing parameters. Returns a negative
493 * error code or zero.
494 * @set_coalesce: Set interrupt coalescing parameters. Supported coalescing
495 * types should be set in @supported_coalesce_params.
496 * Returns a negative error code or zero.
497 * @get_ringparam: Report ring sizes
498 * @set_ringparam: Set ring sizes. Returns a negative error code or zero.
499 * @get_pause_stats: Report pause frame statistics. Drivers must not zero
500 * statistics which they don't report. The stats structure is initialized
501 * to ETHTOOL_STAT_NOT_SET indicating driver does not report statistics.
502 * @get_pauseparam: Report pause parameters
503 * @set_pauseparam: Set pause parameters. Returns a negative error code
505 * @self_test: Run specified self-tests
506 * @get_strings: Return a set of strings that describe the requested objects
507 * @set_phys_id: Identify the physical devices, e.g. by flashing an LED
508 * attached to it. The implementation may update the indicator
509 * asynchronously or synchronously, but in either case it must return
510 * quickly. It is initially called with the argument %ETHTOOL_ID_ACTIVE,
511 * and must either activate asynchronous updates and return zero, return
512 * a negative error or return a positive frequency for synchronous
513 * indication (e.g. 1 for one on/off cycle per second). If it returns
514 * a frequency then it will be called again at intervals with the
515 * argument %ETHTOOL_ID_ON or %ETHTOOL_ID_OFF and should set the state of
516 * the indicator accordingly. Finally, it is called with the argument
517 * %ETHTOOL_ID_INACTIVE and must deactivate the indicator. Returns a
518 * negative error code or zero.
519 * @get_ethtool_stats: Return extended statistics about the device.
520 * This is only useful if the device maintains statistics not
521 * included in &struct rtnl_link_stats64.
522 * @begin: Function to be called before any other operation. Returns a
523 * negative error code or zero.
524 * @complete: Function to be called after any other operation except
525 * @begin. Will be called even if the other operation failed.
526 * @get_priv_flags: Report driver-specific feature flags.
527 * @set_priv_flags: Set driver-specific feature flags. Returns a negative
528 * error code or zero.
529 * @get_sset_count: Get number of strings that @get_strings will write.
530 * @get_rxnfc: Get RX flow classification rules. Returns a negative
531 * error code or zero.
532 * @set_rxnfc: Set RX flow classification rules. Returns a negative
533 * error code or zero.
534 * @flash_device: Write a firmware image to device's flash memory.
535 * Returns a negative error code or zero.
536 * @reset: Reset (part of) the device, as specified by a bitmask of
537 * flags from &enum ethtool_reset_flags. Returns a negative
538 * error code or zero.
539 * @get_rxfh_key_size: Get the size of the RX flow hash key.
540 * Returns zero if not supported for this specific device.
541 * @get_rxfh_indir_size: Get the size of the RX flow hash indirection table.
542 * Returns zero if not supported for this specific device.
543 * @get_rxfh: Get the contents of the RX flow hash indirection table, hash key
544 * and/or hash function.
545 * Returns a negative error code or zero.
546 * @set_rxfh: Set the contents of the RX flow hash indirection table, hash
547 * key, and/or hash function. Arguments which are set to %NULL or zero
548 * will remain unchanged.
549 * Returns a negative error code or zero. An error code must be returned
550 * if at least one unsupported change was requested.
551 * @get_rxfh_context: Get the contents of the RX flow hash indirection table,
552 * hash key, and/or hash function assiciated to the given rss context.
553 * Returns a negative error code or zero.
554 * @set_rxfh_context: Create, remove and configure RSS contexts. Allows setting
555 * the contents of the RX flow hash indirection table, hash key, and/or
556 * hash function associated to the given context. Arguments which are set
557 * to %NULL or zero will remain unchanged.
558 * Returns a negative error code or zero. An error code must be returned
559 * if at least one unsupported change was requested.
560 * @get_channels: Get number of channels.
561 * @set_channels: Set number of channels. Returns a negative error code or
563 * @get_dump_flag: Get dump flag indicating current dump length, version,
564 * and flag of the device.
565 * @get_dump_data: Get dump data.
566 * @set_dump: Set dump specific flags to the device.
567 * @get_ts_info: Get the time stamping and PTP hardware clock capabilities.
568 * Drivers supporting transmit time stamps in software should set this to
569 * ethtool_op_get_ts_info().
570 * @get_module_info: Get the size and type of the eeprom contained within
572 * @get_module_eeprom: Get the eeprom information from the plug-in module
573 * @get_eee: Get Energy-Efficient (EEE) supported and status.
574 * @set_eee: Set EEE status (enable/disable) as well as LPI timers.
575 * @get_tunable: Read the value of a driver / device tunable.
576 * @set_tunable: Set the value of a driver / device tunable.
577 * @get_per_queue_coalesce: Get interrupt coalescing parameters per queue.
578 * It must check that the given queue number is valid. If neither a RX nor
579 * a TX queue has this number, return -EINVAL. If only a RX queue or a TX
580 * queue has this number, set the inapplicable fields to ~0 and return 0.
581 * Returns a negative error code or zero.
582 * @set_per_queue_coalesce: Set interrupt coalescing parameters per queue.
583 * It must check that the given queue number is valid. If neither a RX nor
584 * a TX queue has this number, return -EINVAL. If only a RX queue or a TX
585 * queue has this number, ignore the inapplicable fields. Supported
586 * coalescing types should be set in @supported_coalesce_params.
587 * Returns a negative error code or zero.
588 * @get_link_ksettings: Get various device settings including Ethernet link
589 * settings. The %cmd and %link_mode_masks_nwords fields should be
590 * ignored (use %__ETHTOOL_LINK_MODE_MASK_NBITS instead of the latter),
591 * any change to them will be overwritten by kernel. Returns a negative
592 * error code or zero.
593 * @set_link_ksettings: Set various device settings including Ethernet link
594 * settings. The %cmd and %link_mode_masks_nwords fields should be
595 * ignored (use %__ETHTOOL_LINK_MODE_MASK_NBITS instead of the latter),
596 * any change to them will be overwritten by kernel. Returns a negative
597 * error code or zero.
598 * @get_fec_stats: Report FEC statistics.
599 * Core will sum up per-lane stats to get the total.
600 * Drivers must not zero statistics which they don't report. The stats
601 * structure is initialized to ETHTOOL_STAT_NOT_SET indicating driver does
602 * not report statistics.
603 * @get_fecparam: Get the network device Forward Error Correction parameters.
604 * @set_fecparam: Set the network device Forward Error Correction parameters.
605 * @get_ethtool_phy_stats: Return extended statistics about the PHY device.
606 * This is only useful if the device maintains PHY statistics and
607 * cannot use the standard PHY library helpers.
608 * @get_phy_tunable: Read the value of a PHY tunable.
609 * @set_phy_tunable: Set the value of a PHY tunable.
610 * @get_module_eeprom_by_page: Get a region of plug-in module EEPROM data from
611 * specified page. Returns a negative error code or the amount of bytes
613 * @get_eth_phy_stats: Query some of the IEEE 802.3 PHY statistics.
614 * @get_eth_mac_stats: Query some of the IEEE 802.3 MAC statistics.
615 * @get_eth_ctrl_stats: Query some of the IEEE 802.3 MAC Ctrl statistics.
616 * @get_rmon_stats: Query some of the RMON (RFC 2819) statistics.
617 * Set %ranges to a pointer to zero-terminated array of byte ranges.
618 * @get_module_power_mode: Get the power mode policy for the plug-in module
619 * used by the network device and its operational power mode, if
621 * @set_module_power_mode: Set the power mode policy for the plug-in module
622 * used by the network device.
624 * All operations are optional (i.e. the function pointer may be set
625 * to %NULL) and callers must take this into account. Callers must
626 * hold the RTNL lock.
628 * See the structures used by these operations for further documentation.
629 * Note that for all operations using a structure ending with a zero-
630 * length array, the array is allocated separately in the kernel and
631 * is passed to the driver as an additional parameter.
633 * See &struct net_device and &struct net_device_ops for documentation
634 * of the generic netdev features interface.
637 u32 cap_link_lanes_supported:1;
638 u32 supported_coalesce_params;
639 u32 supported_ring_params;
640 void (*get_drvinfo)(struct net_device *, struct ethtool_drvinfo *);
641 int (*get_regs_len)(struct net_device *);
642 void (*get_regs)(struct net_device *, struct ethtool_regs *, void *);
643 void (*get_wol)(struct net_device *, struct ethtool_wolinfo *);
644 int (*set_wol)(struct net_device *, struct ethtool_wolinfo *);
645 u32 (*get_msglevel)(struct net_device *);
646 void (*set_msglevel)(struct net_device *, u32);
647 int (*nway_reset)(struct net_device *);
648 u32 (*get_link)(struct net_device *);
649 int (*get_link_ext_state)(struct net_device *,
650 struct ethtool_link_ext_state_info *);
651 int (*get_eeprom_len)(struct net_device *);
652 int (*get_eeprom)(struct net_device *,
653 struct ethtool_eeprom *, u8 *);
654 int (*set_eeprom)(struct net_device *,
655 struct ethtool_eeprom *, u8 *);
656 int (*get_coalesce)(struct net_device *,
657 struct ethtool_coalesce *,
658 struct kernel_ethtool_coalesce *,
659 struct netlink_ext_ack *);
660 int (*set_coalesce)(struct net_device *,
661 struct ethtool_coalesce *,
662 struct kernel_ethtool_coalesce *,
663 struct netlink_ext_ack *);
664 void (*get_ringparam)(struct net_device *,
665 struct ethtool_ringparam *,
666 struct kernel_ethtool_ringparam *,
667 struct netlink_ext_ack *);
668 int (*set_ringparam)(struct net_device *,
669 struct ethtool_ringparam *,
670 struct kernel_ethtool_ringparam *,
671 struct netlink_ext_ack *);
672 void (*get_pause_stats)(struct net_device *dev,
673 struct ethtool_pause_stats *pause_stats);
674 void (*get_pauseparam)(struct net_device *,
675 struct ethtool_pauseparam*);
676 int (*set_pauseparam)(struct net_device *,
677 struct ethtool_pauseparam*);
678 void (*self_test)(struct net_device *, struct ethtool_test *, u64 *);
679 void (*get_strings)(struct net_device *, u32 stringset, u8 *);
680 int (*set_phys_id)(struct net_device *, enum ethtool_phys_id_state);
681 void (*get_ethtool_stats)(struct net_device *,
682 struct ethtool_stats *, u64 *);
683 int (*begin)(struct net_device *);
684 void (*complete)(struct net_device *);
685 u32 (*get_priv_flags)(struct net_device *);
686 int (*set_priv_flags)(struct net_device *, u32);
687 int (*get_sset_count)(struct net_device *, int);
688 int (*get_rxnfc)(struct net_device *,
689 struct ethtool_rxnfc *, u32 *rule_locs);
690 int (*set_rxnfc)(struct net_device *, struct ethtool_rxnfc *);
691 int (*flash_device)(struct net_device *, struct ethtool_flash *);
692 int (*reset)(struct net_device *, u32 *);
693 u32 (*get_rxfh_key_size)(struct net_device *);
694 u32 (*get_rxfh_indir_size)(struct net_device *);
695 int (*get_rxfh)(struct net_device *, u32 *indir, u8 *key,
697 int (*set_rxfh)(struct net_device *, const u32 *indir,
698 const u8 *key, const u8 hfunc);
699 int (*get_rxfh_context)(struct net_device *, u32 *indir, u8 *key,
700 u8 *hfunc, u32 rss_context);
701 int (*set_rxfh_context)(struct net_device *, const u32 *indir,
702 const u8 *key, const u8 hfunc,
703 u32 *rss_context, bool delete);
704 void (*get_channels)(struct net_device *, struct ethtool_channels *);
705 int (*set_channels)(struct net_device *, struct ethtool_channels *);
706 int (*get_dump_flag)(struct net_device *, struct ethtool_dump *);
707 int (*get_dump_data)(struct net_device *,
708 struct ethtool_dump *, void *);
709 int (*set_dump)(struct net_device *, struct ethtool_dump *);
710 int (*get_ts_info)(struct net_device *, struct ethtool_ts_info *);
711 int (*get_module_info)(struct net_device *,
712 struct ethtool_modinfo *);
713 int (*get_module_eeprom)(struct net_device *,
714 struct ethtool_eeprom *, u8 *);
715 int (*get_eee)(struct net_device *, struct ethtool_eee *);
716 int (*set_eee)(struct net_device *, struct ethtool_eee *);
717 int (*get_tunable)(struct net_device *,
718 const struct ethtool_tunable *, void *);
719 int (*set_tunable)(struct net_device *,
720 const struct ethtool_tunable *, const void *);
721 int (*get_per_queue_coalesce)(struct net_device *, u32,
722 struct ethtool_coalesce *);
723 int (*set_per_queue_coalesce)(struct net_device *, u32,
724 struct ethtool_coalesce *);
725 int (*get_link_ksettings)(struct net_device *,
726 struct ethtool_link_ksettings *);
727 int (*set_link_ksettings)(struct net_device *,
728 const struct ethtool_link_ksettings *);
729 void (*get_fec_stats)(struct net_device *dev,
730 struct ethtool_fec_stats *fec_stats);
731 int (*get_fecparam)(struct net_device *,
732 struct ethtool_fecparam *);
733 int (*set_fecparam)(struct net_device *,
734 struct ethtool_fecparam *);
735 void (*get_ethtool_phy_stats)(struct net_device *,
736 struct ethtool_stats *, u64 *);
737 int (*get_phy_tunable)(struct net_device *,
738 const struct ethtool_tunable *, void *);
739 int (*set_phy_tunable)(struct net_device *,
740 const struct ethtool_tunable *, const void *);
741 int (*get_module_eeprom_by_page)(struct net_device *dev,
742 const struct ethtool_module_eeprom *page,
743 struct netlink_ext_ack *extack);
744 void (*get_eth_phy_stats)(struct net_device *dev,
745 struct ethtool_eth_phy_stats *phy_stats);
746 void (*get_eth_mac_stats)(struct net_device *dev,
747 struct ethtool_eth_mac_stats *mac_stats);
748 void (*get_eth_ctrl_stats)(struct net_device *dev,
749 struct ethtool_eth_ctrl_stats *ctrl_stats);
750 void (*get_rmon_stats)(struct net_device *dev,
751 struct ethtool_rmon_stats *rmon_stats,
752 const struct ethtool_rmon_hist_range **ranges);
753 int (*get_module_power_mode)(struct net_device *dev,
754 struct ethtool_module_power_mode_params *params,
755 struct netlink_ext_ack *extack);
756 int (*set_module_power_mode)(struct net_device *dev,
757 const struct ethtool_module_power_mode_params *params,
758 struct netlink_ext_ack *extack);
761 int ethtool_check_ops(const struct ethtool_ops *ops);
763 struct ethtool_rx_flow_rule {
764 struct flow_rule *rule;
765 unsigned long priv[];
768 struct ethtool_rx_flow_spec_input {
769 const struct ethtool_rx_flow_spec *fs;
773 struct ethtool_rx_flow_rule *
774 ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input);
775 void ethtool_rx_flow_rule_destroy(struct ethtool_rx_flow_rule *rule);
777 bool ethtool_virtdev_validate_cmd(const struct ethtool_link_ksettings *cmd);
778 int ethtool_virtdev_set_link_ksettings(struct net_device *dev,
779 const struct ethtool_link_ksettings *cmd,
780 u32 *dev_speed, u8 *dev_duplex);
783 struct phy_tdr_config;
786 * struct ethtool_phy_ops - Optional PHY device options
787 * @get_sset_count: Get number of strings that @get_strings will write.
788 * @get_strings: Return a set of strings that describe the requested objects
789 * @get_stats: Return extended statistics about the PHY device.
790 * @start_cable_test: Start a cable test
791 * @start_cable_test_tdr: Start a Time Domain Reflectometry cable test
793 * All operations are optional (i.e. the function pointer may be set to %NULL)
794 * and callers must take this into account. Callers must hold the RTNL lock.
796 struct ethtool_phy_ops {
797 int (*get_sset_count)(struct phy_device *dev);
798 int (*get_strings)(struct phy_device *dev, u8 *data);
799 int (*get_stats)(struct phy_device *dev,
800 struct ethtool_stats *stats, u64 *data);
801 int (*start_cable_test)(struct phy_device *phydev,
802 struct netlink_ext_ack *extack);
803 int (*start_cable_test_tdr)(struct phy_device *phydev,
804 struct netlink_ext_ack *extack,
805 const struct phy_tdr_config *config);
809 * ethtool_set_ethtool_phy_ops - Set the ethtool_phy_ops singleton
810 * @ops: Ethtool PHY operations to set
812 void ethtool_set_ethtool_phy_ops(const struct ethtool_phy_ops *ops);
815 * ethtool_params_from_link_mode - Derive link parameters from a given link mode
816 * @link_ksettings: Link parameters to be derived from the link mode
817 * @link_mode: Link mode
820 ethtool_params_from_link_mode(struct ethtool_link_ksettings *link_ksettings,
821 enum ethtool_link_mode_bit_indices link_mode);
824 * ethtool_get_phc_vclocks - Derive phc vclocks information, and caller
825 * is responsible to free memory of vclock_index
826 * @dev: pointer to net_device structure
827 * @vclock_index: pointer to pointer of vclock index
829 * Return number of phc vclocks
831 int ethtool_get_phc_vclocks(struct net_device *dev, int **vclock_index);
834 * ethtool_sprintf - Write formatted string to ethtool string data
835 * @data: Pointer to start of string to update
836 * @fmt: Format of string to write
838 * Write formatted string to data. Update data to point at start of
841 extern __printf(2, 3) void ethtool_sprintf(u8 **data, const char *fmt, ...);
842 #endif /* _LINUX_ETHTOOL_H */