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 * @tx_push: The flag of tx push mode
75 * @cqe_size: Size of TX/RX completion queue event
77 struct kernel_ethtool_ringparam {
85 * enum ethtool_supported_ring_param - indicator caps for setting ring params
86 * @ETHTOOL_RING_USE_RX_BUF_LEN: capture for setting rx_buf_len
87 * @ETHTOOL_RING_USE_CQE_SIZE: capture for setting cqe_size
88 * @ETHTOOL_RING_USE_TX_PUSH: capture for setting tx_push
90 enum ethtool_supported_ring_param {
91 ETHTOOL_RING_USE_RX_BUF_LEN = BIT(0),
92 ETHTOOL_RING_USE_CQE_SIZE = BIT(1),
93 ETHTOOL_RING_USE_TX_PUSH = BIT(2),
96 #define __ETH_RSS_HASH_BIT(bit) ((u32)1 << (bit))
97 #define __ETH_RSS_HASH(name) __ETH_RSS_HASH_BIT(ETH_RSS_HASH_##name##_BIT)
99 #define ETH_RSS_HASH_TOP __ETH_RSS_HASH(TOP)
100 #define ETH_RSS_HASH_XOR __ETH_RSS_HASH(XOR)
101 #define ETH_RSS_HASH_CRC32 __ETH_RSS_HASH(CRC32)
103 #define ETH_RSS_HASH_UNKNOWN 0
104 #define ETH_RSS_HASH_NO_CHANGE 0
107 struct netlink_ext_ack;
109 /* Some generic methods drivers may use in their ethtool_ops */
110 u32 ethtool_op_get_link(struct net_device *dev);
111 int ethtool_op_get_ts_info(struct net_device *dev, struct ethtool_ts_info *eti);
114 /* Link extended state and substate. */
115 struct ethtool_link_ext_state_info {
116 enum ethtool_link_ext_state link_ext_state;
118 enum ethtool_link_ext_substate_autoneg autoneg;
119 enum ethtool_link_ext_substate_link_training link_training;
120 enum ethtool_link_ext_substate_link_logical_mismatch link_logical_mismatch;
121 enum ethtool_link_ext_substate_bad_signal_integrity bad_signal_integrity;
122 enum ethtool_link_ext_substate_cable_issue cable_issue;
123 enum ethtool_link_ext_substate_module module;
124 u32 __link_ext_substate;
128 struct ethtool_link_ext_stats {
129 /* Custom Linux statistic for PHY level link down events.
130 * In a simpler world it should be equal to netdev->carrier_down_count
131 * unfortunately netdev also counts local reconfigurations which don't
132 * actually take the physical link down, not to mention NC-SI which,
133 * if present, keeps the link up regardless of host state.
134 * This statistic counts when PHY _actually_ went down, or lost link.
136 * Note that we need u64 for ethtool_stats_init() and comparisons
137 * to ETHTOOL_STAT_NOT_SET, but only u32 is exposed to the user.
139 u64 link_down_events;
143 * ethtool_rxfh_indir_default - get default value for RX flow hash indirection
144 * @index: Index in RX flow hash indirection table
145 * @n_rx_rings: Number of RX rings to use
147 * This function provides the default policy for RX flow hash indirection.
149 static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings)
151 return index % n_rx_rings;
154 /* declare a link mode bitmap */
155 #define __ETHTOOL_DECLARE_LINK_MODE_MASK(name) \
156 DECLARE_BITMAP(name, __ETHTOOL_LINK_MODE_MASK_NBITS)
158 /* drivers must ignore base.cmd and base.link_mode_masks_nwords
159 * fields, but they are allowed to overwrite them (will be ignored).
161 struct ethtool_link_ksettings {
162 struct ethtool_link_settings base;
164 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
165 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
166 __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising);
172 * ethtool_link_ksettings_zero_link_mode - clear link_ksettings link mode mask
173 * @ptr : pointer to struct ethtool_link_ksettings
174 * @name : one of supported/advertising/lp_advertising
176 #define ethtool_link_ksettings_zero_link_mode(ptr, name) \
177 bitmap_zero((ptr)->link_modes.name, __ETHTOOL_LINK_MODE_MASK_NBITS)
180 * ethtool_link_ksettings_add_link_mode - set bit in link_ksettings
182 * @ptr : pointer to struct ethtool_link_ksettings
183 * @name : one of supported/advertising/lp_advertising
184 * @mode : one of the ETHTOOL_LINK_MODE_*_BIT
185 * (not atomic, no bound checking)
187 #define ethtool_link_ksettings_add_link_mode(ptr, name, mode) \
188 __set_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
191 * ethtool_link_ksettings_del_link_mode - clear bit in link_ksettings
193 * @ptr : pointer to struct ethtool_link_ksettings
194 * @name : one of supported/advertising/lp_advertising
195 * @mode : one of the ETHTOOL_LINK_MODE_*_BIT
196 * (not atomic, no bound checking)
198 #define ethtool_link_ksettings_del_link_mode(ptr, name, mode) \
199 __clear_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
202 * ethtool_link_ksettings_test_link_mode - test bit in ksettings link mode mask
203 * @ptr : pointer to struct ethtool_link_ksettings
204 * @name : one of supported/advertising/lp_advertising
205 * @mode : one of the ETHTOOL_LINK_MODE_*_BIT
206 * (not atomic, no bound checking)
208 * Returns true/false.
210 #define ethtool_link_ksettings_test_link_mode(ptr, name, mode) \
211 test_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
214 __ethtool_get_link_ksettings(struct net_device *dev,
215 struct ethtool_link_ksettings *link_ksettings);
217 struct kernel_ethtool_coalesce {
223 * ethtool_intersect_link_masks - Given two link masks, AND them together
224 * @dst: first mask and where result is stored
225 * @src: second mask to intersect with
227 * Given two link mode masks, AND them together and save the result in dst.
229 void ethtool_intersect_link_masks(struct ethtool_link_ksettings *dst,
230 struct ethtool_link_ksettings *src);
232 void ethtool_convert_legacy_u32_to_link_mode(unsigned long *dst,
235 /* return false if src had higher bits set. lower bits always updated. */
236 bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32,
237 const unsigned long *src);
239 #define ETHTOOL_COALESCE_RX_USECS BIT(0)
240 #define ETHTOOL_COALESCE_RX_MAX_FRAMES BIT(1)
241 #define ETHTOOL_COALESCE_RX_USECS_IRQ BIT(2)
242 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ BIT(3)
243 #define ETHTOOL_COALESCE_TX_USECS BIT(4)
244 #define ETHTOOL_COALESCE_TX_MAX_FRAMES BIT(5)
245 #define ETHTOOL_COALESCE_TX_USECS_IRQ BIT(6)
246 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ BIT(7)
247 #define ETHTOOL_COALESCE_STATS_BLOCK_USECS BIT(8)
248 #define ETHTOOL_COALESCE_USE_ADAPTIVE_RX BIT(9)
249 #define ETHTOOL_COALESCE_USE_ADAPTIVE_TX BIT(10)
250 #define ETHTOOL_COALESCE_PKT_RATE_LOW BIT(11)
251 #define ETHTOOL_COALESCE_RX_USECS_LOW BIT(12)
252 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW BIT(13)
253 #define ETHTOOL_COALESCE_TX_USECS_LOW BIT(14)
254 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW BIT(15)
255 #define ETHTOOL_COALESCE_PKT_RATE_HIGH BIT(16)
256 #define ETHTOOL_COALESCE_RX_USECS_HIGH BIT(17)
257 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH BIT(18)
258 #define ETHTOOL_COALESCE_TX_USECS_HIGH BIT(19)
259 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH BIT(20)
260 #define ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL BIT(21)
261 #define ETHTOOL_COALESCE_USE_CQE_RX BIT(22)
262 #define ETHTOOL_COALESCE_USE_CQE_TX BIT(23)
263 #define ETHTOOL_COALESCE_ALL_PARAMS GENMASK(23, 0)
265 #define ETHTOOL_COALESCE_USECS \
266 (ETHTOOL_COALESCE_RX_USECS | ETHTOOL_COALESCE_TX_USECS)
267 #define ETHTOOL_COALESCE_MAX_FRAMES \
268 (ETHTOOL_COALESCE_RX_MAX_FRAMES | ETHTOOL_COALESCE_TX_MAX_FRAMES)
269 #define ETHTOOL_COALESCE_USECS_IRQ \
270 (ETHTOOL_COALESCE_RX_USECS_IRQ | ETHTOOL_COALESCE_TX_USECS_IRQ)
271 #define ETHTOOL_COALESCE_MAX_FRAMES_IRQ \
272 (ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ | \
273 ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ)
274 #define ETHTOOL_COALESCE_USE_ADAPTIVE \
275 (ETHTOOL_COALESCE_USE_ADAPTIVE_RX | ETHTOOL_COALESCE_USE_ADAPTIVE_TX)
276 #define ETHTOOL_COALESCE_USECS_LOW_HIGH \
277 (ETHTOOL_COALESCE_RX_USECS_LOW | ETHTOOL_COALESCE_TX_USECS_LOW | \
278 ETHTOOL_COALESCE_RX_USECS_HIGH | ETHTOOL_COALESCE_TX_USECS_HIGH)
279 #define ETHTOOL_COALESCE_MAX_FRAMES_LOW_HIGH \
280 (ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW | \
281 ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW | \
282 ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH | \
283 ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH)
284 #define ETHTOOL_COALESCE_PKT_RATE_RX_USECS \
285 (ETHTOOL_COALESCE_USE_ADAPTIVE_RX | \
286 ETHTOOL_COALESCE_RX_USECS_LOW | ETHTOOL_COALESCE_RX_USECS_HIGH | \
287 ETHTOOL_COALESCE_PKT_RATE_LOW | ETHTOOL_COALESCE_PKT_RATE_HIGH | \
288 ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL)
289 #define ETHTOOL_COALESCE_USE_CQE \
290 (ETHTOOL_COALESCE_USE_CQE_RX | ETHTOOL_COALESCE_USE_CQE_TX)
292 #define ETHTOOL_STAT_NOT_SET (~0ULL)
294 static inline void ethtool_stats_init(u64 *stats, unsigned int n)
297 stats[n] = ETHTOOL_STAT_NOT_SET;
300 /* Basic IEEE 802.3 MAC statistics (30.3.1.1.*), not otherwise exposed
301 * via a more targeted API.
303 struct ethtool_eth_mac_stats {
304 u64 FramesTransmittedOK;
305 u64 SingleCollisionFrames;
306 u64 MultipleCollisionFrames;
307 u64 FramesReceivedOK;
308 u64 FrameCheckSequenceErrors;
310 u64 OctetsTransmittedOK;
311 u64 FramesWithDeferredXmissions;
313 u64 FramesAbortedDueToXSColls;
314 u64 FramesLostDueToIntMACXmitError;
315 u64 CarrierSenseErrors;
316 u64 OctetsReceivedOK;
317 u64 FramesLostDueToIntMACRcvError;
318 u64 MulticastFramesXmittedOK;
319 u64 BroadcastFramesXmittedOK;
320 u64 FramesWithExcessiveDeferral;
321 u64 MulticastFramesReceivedOK;
322 u64 BroadcastFramesReceivedOK;
323 u64 InRangeLengthErrors;
324 u64 OutOfRangeLengthField;
325 u64 FrameTooLongErrors;
328 /* Basic IEEE 802.3 PHY statistics (30.3.2.1.*), not otherwise exposed
329 * via a more targeted API.
331 struct ethtool_eth_phy_stats {
332 u64 SymbolErrorDuringCarrier;
335 /* Basic IEEE 802.3 MAC Ctrl statistics (30.3.3.*), not otherwise exposed
336 * via a more targeted API.
338 struct ethtool_eth_ctrl_stats {
339 u64 MACControlFramesTransmitted;
340 u64 MACControlFramesReceived;
341 u64 UnsupportedOpcodesReceived;
345 * struct ethtool_pause_stats - statistics for IEEE 802.3x pause frames
346 * @tx_pause_frames: transmitted pause frame count. Reported to user space
347 * as %ETHTOOL_A_PAUSE_STAT_TX_FRAMES.
349 * Equivalent to `30.3.4.2 aPAUSEMACCtrlFramesTransmitted`
352 * @rx_pause_frames: received pause frame count. Reported to user space
353 * as %ETHTOOL_A_PAUSE_STAT_RX_FRAMES. Equivalent to:
355 * Equivalent to `30.3.4.3 aPAUSEMACCtrlFramesReceived`
358 struct ethtool_pause_stats {
363 #define ETHTOOL_MAX_LANES 8
366 * struct ethtool_fec_stats - statistics for IEEE 802.3 FEC
367 * @corrected_blocks: number of received blocks corrected by FEC
368 * Reported to user space as %ETHTOOL_A_FEC_STAT_CORRECTED.
370 * Equivalent to `30.5.1.1.17 aFECCorrectedBlocks` from the standard.
372 * @uncorrectable_blocks: number of received blocks FEC was not able to correct
373 * Reported to user space as %ETHTOOL_A_FEC_STAT_UNCORR.
375 * Equivalent to `30.5.1.1.18 aFECUncorrectableBlocks` from the standard.
377 * @corrected_bits: number of bits corrected by FEC
378 * Similar to @corrected_blocks but counts individual bit changes,
379 * not entire FEC data blocks. This is a non-standard statistic.
380 * Reported to user space as %ETHTOOL_A_FEC_STAT_CORR_BITS.
382 * @lane: per-lane/PCS-instance counts as defined by the standard
383 * @total: error counts for the entire port, for drivers incapable of reporting
386 * Drivers should fill in either only total or per-lane statistics, core
387 * will take care of adding lane values up to produce the total.
389 struct ethtool_fec_stats {
390 struct ethtool_fec_stat {
392 u64 lanes[ETHTOOL_MAX_LANES];
393 } corrected_blocks, uncorrectable_blocks, corrected_bits;
397 * struct ethtool_rmon_hist_range - byte range for histogram statistics
398 * @low: low bound of the bucket (inclusive)
399 * @high: high bound of the bucket (inclusive)
401 struct ethtool_rmon_hist_range {
406 #define ETHTOOL_RMON_HIST_MAX 10
409 * struct ethtool_rmon_stats - selected RMON (RFC 2819) statistics
410 * @undersize_pkts: Equivalent to `etherStatsUndersizePkts` from the RFC.
411 * @oversize_pkts: Equivalent to `etherStatsOversizePkts` from the RFC.
412 * @fragments: Equivalent to `etherStatsFragments` from the RFC.
413 * @jabbers: Equivalent to `etherStatsJabbers` from the RFC.
414 * @hist: Packet counter for packet length buckets (e.g.
415 * `etherStatsPkts128to255Octets` from the RFC).
416 * @hist_tx: Tx counters in similar form to @hist, not defined in the RFC.
418 * Selection of RMON (RFC 2819) statistics which are not exposed via different
419 * APIs, primarily the packet-length-based counters.
420 * Unfortunately different designs choose different buckets beyond
421 * the 1024B mark (jumbo frame teritory), so the definition of the bucket
422 * ranges is left to the driver.
424 struct ethtool_rmon_stats {
430 u64 hist[ETHTOOL_RMON_HIST_MAX];
431 u64 hist_tx[ETHTOOL_RMON_HIST_MAX];
434 #define ETH_MODULE_EEPROM_PAGE_LEN 128
435 #define ETH_MODULE_MAX_I2C_ADDRESS 0x7f
438 * struct ethtool_module_eeprom - EEPROM dump from specified page
439 * @offset: Offset within the specified EEPROM page to begin read, in bytes.
440 * @length: Number of bytes to read.
441 * @page: Page number to read from.
442 * @bank: Page bank number to read from, if applicable by EEPROM spec.
443 * @i2c_address: I2C address of a page. Value less than 0x7f expected. Most
444 * EEPROMs use 0x50 or 0x51.
445 * @data: Pointer to buffer with EEPROM data of @length size.
447 * This can be used to manage pages during EEPROM dump in ethtool and pass
448 * required information to the driver.
450 struct ethtool_module_eeprom {
460 * struct ethtool_module_power_mode_params - module power mode parameters
461 * @policy: The power mode policy enforced by the host for the plug-in module.
462 * @mode: The operational power mode of the plug-in module. Should be filled by
463 * device drivers on get operations.
465 struct ethtool_module_power_mode_params {
466 enum ethtool_module_power_mode_policy policy;
467 enum ethtool_module_power_mode mode;
471 * struct ethtool_ops - optional netdev operations
472 * @cap_link_lanes_supported: indicates if the driver supports lanes
474 * @supported_coalesce_params: supported types of interrupt coalescing.
475 * @supported_ring_params: supported ring params.
476 * @get_drvinfo: Report driver/device information. Modern drivers no
477 * longer have to implement this callback. Most fields are
478 * correctly filled in by the core using system information, or
479 * populated using other driver operations.
480 * @get_regs_len: Get buffer length required for @get_regs
481 * @get_regs: Get device registers
482 * @get_wol: Report whether Wake-on-Lan is enabled
483 * @set_wol: Turn Wake-on-Lan on or off. Returns a negative error code
485 * @get_msglevel: Report driver message level. This should be the value
486 * of the @msg_enable field used by netif logging functions.
487 * @set_msglevel: Set driver message level
488 * @nway_reset: Restart autonegotiation. Returns a negative error code
490 * @get_link: Report whether physical link is up. Will only be called if
491 * the netdev is up. Should usually be set to ethtool_op_get_link(),
492 * which uses netif_carrier_ok().
493 * @get_link_ext_state: Report link extended state. Should set link_ext_state and
494 * link_ext_substate (link_ext_substate of 0 means link_ext_substate is unknown,
495 * do not attach ext_substate attribute to netlink message). If link_ext_state
496 * and link_ext_substate are unknown, return -ENODATA. If not implemented,
497 * link_ext_state and link_ext_substate will not be sent to userspace.
498 * @get_link_ext_stats: Read extra link-related counters.
499 * @get_eeprom_len: Read range of EEPROM addresses for validation of
500 * @get_eeprom and @set_eeprom requests.
501 * Returns 0 if device does not support EEPROM access.
502 * @get_eeprom: Read data from the device EEPROM.
503 * Should fill in the magic field. Don't need to check len for zero
504 * or wraparound. Fill in the data argument with the eeprom values
505 * from offset to offset + len. Update len to the amount read.
506 * Returns an error or zero.
507 * @set_eeprom: Write data to the device EEPROM.
508 * Should validate the magic field. Don't need to check len for zero
509 * or wraparound. Update len to the amount written. Returns an error
511 * @get_coalesce: Get interrupt coalescing parameters. Returns a negative
512 * error code or zero.
513 * @set_coalesce: Set interrupt coalescing parameters. Supported coalescing
514 * types should be set in @supported_coalesce_params.
515 * Returns a negative error code or zero.
516 * @get_ringparam: Report ring sizes
517 * @set_ringparam: Set ring sizes. Returns a negative error code or zero.
518 * @get_pause_stats: Report pause frame statistics. Drivers must not zero
519 * statistics which they don't report. The stats structure is initialized
520 * to ETHTOOL_STAT_NOT_SET indicating driver does not report statistics.
521 * @get_pauseparam: Report pause parameters
522 * @set_pauseparam: Set pause parameters. Returns a negative error code
524 * @self_test: Run specified self-tests
525 * @get_strings: Return a set of strings that describe the requested objects
526 * @set_phys_id: Identify the physical devices, e.g. by flashing an LED
527 * attached to it. The implementation may update the indicator
528 * asynchronously or synchronously, but in either case it must return
529 * quickly. It is initially called with the argument %ETHTOOL_ID_ACTIVE,
530 * and must either activate asynchronous updates and return zero, return
531 * a negative error or return a positive frequency for synchronous
532 * indication (e.g. 1 for one on/off cycle per second). If it returns
533 * a frequency then it will be called again at intervals with the
534 * argument %ETHTOOL_ID_ON or %ETHTOOL_ID_OFF and should set the state of
535 * the indicator accordingly. Finally, it is called with the argument
536 * %ETHTOOL_ID_INACTIVE and must deactivate the indicator. Returns a
537 * negative error code or zero.
538 * @get_ethtool_stats: Return extended statistics about the device.
539 * This is only useful if the device maintains statistics not
540 * included in &struct rtnl_link_stats64.
541 * @begin: Function to be called before any other operation. Returns a
542 * negative error code or zero.
543 * @complete: Function to be called after any other operation except
544 * @begin. Will be called even if the other operation failed.
545 * @get_priv_flags: Report driver-specific feature flags.
546 * @set_priv_flags: Set driver-specific feature flags. Returns a negative
547 * error code or zero.
548 * @get_sset_count: Get number of strings that @get_strings will write.
549 * @get_rxnfc: Get RX flow classification rules. Returns a negative
550 * error code or zero.
551 * @set_rxnfc: Set RX flow classification rules. Returns a negative
552 * error code or zero.
553 * @flash_device: Write a firmware image to device's flash memory.
554 * Returns a negative error code or zero.
555 * @reset: Reset (part of) the device, as specified by a bitmask of
556 * flags from &enum ethtool_reset_flags. Returns a negative
557 * error code or zero.
558 * @get_rxfh_key_size: Get the size of the RX flow hash key.
559 * Returns zero if not supported for this specific device.
560 * @get_rxfh_indir_size: Get the size of the RX flow hash indirection table.
561 * Returns zero if not supported for this specific device.
562 * @get_rxfh: Get the contents of the RX flow hash indirection table, hash key
563 * and/or hash function.
564 * Returns a negative error code or zero.
565 * @set_rxfh: Set the contents of the RX flow hash indirection table, hash
566 * key, and/or hash function. Arguments which are set to %NULL or zero
567 * will remain unchanged.
568 * Returns a negative error code or zero. An error code must be returned
569 * if at least one unsupported change was requested.
570 * @get_rxfh_context: Get the contents of the RX flow hash indirection table,
571 * hash key, and/or hash function assiciated to the given rss context.
572 * Returns a negative error code or zero.
573 * @set_rxfh_context: Create, remove and configure RSS contexts. Allows setting
574 * the contents of the RX flow hash indirection table, hash key, and/or
575 * hash function associated to the given context. Arguments which are set
576 * to %NULL or zero will remain unchanged.
577 * Returns a negative error code or zero. An error code must be returned
578 * if at least one unsupported change was requested.
579 * @get_channels: Get number of channels.
580 * @set_channels: Set number of channels. Returns a negative error code or
582 * @get_dump_flag: Get dump flag indicating current dump length, version,
583 * and flag of the device.
584 * @get_dump_data: Get dump data.
585 * @set_dump: Set dump specific flags to the device.
586 * @get_ts_info: Get the time stamping and PTP hardware clock capabilities.
587 * Drivers supporting transmit time stamps in software should set this to
588 * ethtool_op_get_ts_info().
589 * @get_module_info: Get the size and type of the eeprom contained within
591 * @get_module_eeprom: Get the eeprom information from the plug-in module
592 * @get_eee: Get Energy-Efficient (EEE) supported and status.
593 * @set_eee: Set EEE status (enable/disable) as well as LPI timers.
594 * @get_tunable: Read the value of a driver / device tunable.
595 * @set_tunable: Set the value of a driver / device tunable.
596 * @get_per_queue_coalesce: Get interrupt coalescing parameters per queue.
597 * It must check that the given queue number is valid. If neither a RX nor
598 * a TX queue has this number, return -EINVAL. If only a RX queue or a TX
599 * queue has this number, set the inapplicable fields to ~0 and return 0.
600 * Returns a negative error code or zero.
601 * @set_per_queue_coalesce: Set interrupt coalescing parameters per queue.
602 * It must check that the given queue number is valid. If neither a RX nor
603 * a TX queue has this number, return -EINVAL. If only a RX queue or a TX
604 * queue has this number, ignore the inapplicable fields. Supported
605 * coalescing types should be set in @supported_coalesce_params.
606 * Returns a negative error code or zero.
607 * @get_link_ksettings: Get various device settings including Ethernet link
608 * settings. The %cmd and %link_mode_masks_nwords fields should be
609 * ignored (use %__ETHTOOL_LINK_MODE_MASK_NBITS instead of the latter),
610 * any change to them will be overwritten by kernel. Returns a negative
611 * error code or zero.
612 * @set_link_ksettings: Set various device settings including Ethernet link
613 * settings. The %cmd and %link_mode_masks_nwords fields should be
614 * ignored (use %__ETHTOOL_LINK_MODE_MASK_NBITS instead of the latter),
615 * any change to them will be overwritten by kernel. Returns a negative
616 * error code or zero.
617 * @get_fec_stats: Report FEC statistics.
618 * Core will sum up per-lane stats to get the total.
619 * Drivers must not zero statistics which they don't report. The stats
620 * structure is initialized to ETHTOOL_STAT_NOT_SET indicating driver does
621 * not report statistics.
622 * @get_fecparam: Get the network device Forward Error Correction parameters.
623 * @set_fecparam: Set the network device Forward Error Correction parameters.
624 * @get_ethtool_phy_stats: Return extended statistics about the PHY device.
625 * This is only useful if the device maintains PHY statistics and
626 * cannot use the standard PHY library helpers.
627 * @get_phy_tunable: Read the value of a PHY tunable.
628 * @set_phy_tunable: Set the value of a PHY tunable.
629 * @get_module_eeprom_by_page: Get a region of plug-in module EEPROM data from
630 * specified page. Returns a negative error code or the amount of bytes
632 * @get_eth_phy_stats: Query some of the IEEE 802.3 PHY statistics.
633 * @get_eth_mac_stats: Query some of the IEEE 802.3 MAC statistics.
634 * @get_eth_ctrl_stats: Query some of the IEEE 802.3 MAC Ctrl statistics.
635 * @get_rmon_stats: Query some of the RMON (RFC 2819) statistics.
636 * Set %ranges to a pointer to zero-terminated array of byte ranges.
637 * @get_module_power_mode: Get the power mode policy for the plug-in module
638 * used by the network device and its operational power mode, if
640 * @set_module_power_mode: Set the power mode policy for the plug-in module
641 * used by the network device.
643 * All operations are optional (i.e. the function pointer may be set
644 * to %NULL) and callers must take this into account. Callers must
645 * hold the RTNL lock.
647 * See the structures used by these operations for further documentation.
648 * Note that for all operations using a structure ending with a zero-
649 * length array, the array is allocated separately in the kernel and
650 * is passed to the driver as an additional parameter.
652 * See &struct net_device and &struct net_device_ops for documentation
653 * of the generic netdev features interface.
656 u32 cap_link_lanes_supported:1;
657 u32 supported_coalesce_params;
658 u32 supported_ring_params;
659 void (*get_drvinfo)(struct net_device *, struct ethtool_drvinfo *);
660 int (*get_regs_len)(struct net_device *);
661 void (*get_regs)(struct net_device *, struct ethtool_regs *, void *);
662 void (*get_wol)(struct net_device *, struct ethtool_wolinfo *);
663 int (*set_wol)(struct net_device *, struct ethtool_wolinfo *);
664 u32 (*get_msglevel)(struct net_device *);
665 void (*set_msglevel)(struct net_device *, u32);
666 int (*nway_reset)(struct net_device *);
667 u32 (*get_link)(struct net_device *);
668 int (*get_link_ext_state)(struct net_device *,
669 struct ethtool_link_ext_state_info *);
670 void (*get_link_ext_stats)(struct net_device *dev,
671 struct ethtool_link_ext_stats *stats);
672 int (*get_eeprom_len)(struct net_device *);
673 int (*get_eeprom)(struct net_device *,
674 struct ethtool_eeprom *, u8 *);
675 int (*set_eeprom)(struct net_device *,
676 struct ethtool_eeprom *, u8 *);
677 int (*get_coalesce)(struct net_device *,
678 struct ethtool_coalesce *,
679 struct kernel_ethtool_coalesce *,
680 struct netlink_ext_ack *);
681 int (*set_coalesce)(struct net_device *,
682 struct ethtool_coalesce *,
683 struct kernel_ethtool_coalesce *,
684 struct netlink_ext_ack *);
685 void (*get_ringparam)(struct net_device *,
686 struct ethtool_ringparam *,
687 struct kernel_ethtool_ringparam *,
688 struct netlink_ext_ack *);
689 int (*set_ringparam)(struct net_device *,
690 struct ethtool_ringparam *,
691 struct kernel_ethtool_ringparam *,
692 struct netlink_ext_ack *);
693 void (*get_pause_stats)(struct net_device *dev,
694 struct ethtool_pause_stats *pause_stats);
695 void (*get_pauseparam)(struct net_device *,
696 struct ethtool_pauseparam*);
697 int (*set_pauseparam)(struct net_device *,
698 struct ethtool_pauseparam*);
699 void (*self_test)(struct net_device *, struct ethtool_test *, u64 *);
700 void (*get_strings)(struct net_device *, u32 stringset, u8 *);
701 int (*set_phys_id)(struct net_device *, enum ethtool_phys_id_state);
702 void (*get_ethtool_stats)(struct net_device *,
703 struct ethtool_stats *, u64 *);
704 int (*begin)(struct net_device *);
705 void (*complete)(struct net_device *);
706 u32 (*get_priv_flags)(struct net_device *);
707 int (*set_priv_flags)(struct net_device *, u32);
708 int (*get_sset_count)(struct net_device *, int);
709 int (*get_rxnfc)(struct net_device *,
710 struct ethtool_rxnfc *, u32 *rule_locs);
711 int (*set_rxnfc)(struct net_device *, struct ethtool_rxnfc *);
712 int (*flash_device)(struct net_device *, struct ethtool_flash *);
713 int (*reset)(struct net_device *, u32 *);
714 u32 (*get_rxfh_key_size)(struct net_device *);
715 u32 (*get_rxfh_indir_size)(struct net_device *);
716 int (*get_rxfh)(struct net_device *, u32 *indir, u8 *key,
718 int (*set_rxfh)(struct net_device *, const u32 *indir,
719 const u8 *key, const u8 hfunc);
720 int (*get_rxfh_context)(struct net_device *, u32 *indir, u8 *key,
721 u8 *hfunc, u32 rss_context);
722 int (*set_rxfh_context)(struct net_device *, const u32 *indir,
723 const u8 *key, const u8 hfunc,
724 u32 *rss_context, bool delete);
725 void (*get_channels)(struct net_device *, struct ethtool_channels *);
726 int (*set_channels)(struct net_device *, struct ethtool_channels *);
727 int (*get_dump_flag)(struct net_device *, struct ethtool_dump *);
728 int (*get_dump_data)(struct net_device *,
729 struct ethtool_dump *, void *);
730 int (*set_dump)(struct net_device *, struct ethtool_dump *);
731 int (*get_ts_info)(struct net_device *, struct ethtool_ts_info *);
732 int (*get_module_info)(struct net_device *,
733 struct ethtool_modinfo *);
734 int (*get_module_eeprom)(struct net_device *,
735 struct ethtool_eeprom *, u8 *);
736 int (*get_eee)(struct net_device *, struct ethtool_eee *);
737 int (*set_eee)(struct net_device *, struct ethtool_eee *);
738 int (*get_tunable)(struct net_device *,
739 const struct ethtool_tunable *, void *);
740 int (*set_tunable)(struct net_device *,
741 const struct ethtool_tunable *, const void *);
742 int (*get_per_queue_coalesce)(struct net_device *, u32,
743 struct ethtool_coalesce *);
744 int (*set_per_queue_coalesce)(struct net_device *, u32,
745 struct ethtool_coalesce *);
746 int (*get_link_ksettings)(struct net_device *,
747 struct ethtool_link_ksettings *);
748 int (*set_link_ksettings)(struct net_device *,
749 const struct ethtool_link_ksettings *);
750 void (*get_fec_stats)(struct net_device *dev,
751 struct ethtool_fec_stats *fec_stats);
752 int (*get_fecparam)(struct net_device *,
753 struct ethtool_fecparam *);
754 int (*set_fecparam)(struct net_device *,
755 struct ethtool_fecparam *);
756 void (*get_ethtool_phy_stats)(struct net_device *,
757 struct ethtool_stats *, u64 *);
758 int (*get_phy_tunable)(struct net_device *,
759 const struct ethtool_tunable *, void *);
760 int (*set_phy_tunable)(struct net_device *,
761 const struct ethtool_tunable *, const void *);
762 int (*get_module_eeprom_by_page)(struct net_device *dev,
763 const struct ethtool_module_eeprom *page,
764 struct netlink_ext_ack *extack);
765 void (*get_eth_phy_stats)(struct net_device *dev,
766 struct ethtool_eth_phy_stats *phy_stats);
767 void (*get_eth_mac_stats)(struct net_device *dev,
768 struct ethtool_eth_mac_stats *mac_stats);
769 void (*get_eth_ctrl_stats)(struct net_device *dev,
770 struct ethtool_eth_ctrl_stats *ctrl_stats);
771 void (*get_rmon_stats)(struct net_device *dev,
772 struct ethtool_rmon_stats *rmon_stats,
773 const struct ethtool_rmon_hist_range **ranges);
774 int (*get_module_power_mode)(struct net_device *dev,
775 struct ethtool_module_power_mode_params *params,
776 struct netlink_ext_ack *extack);
777 int (*set_module_power_mode)(struct net_device *dev,
778 const struct ethtool_module_power_mode_params *params,
779 struct netlink_ext_ack *extack);
782 int ethtool_check_ops(const struct ethtool_ops *ops);
784 struct ethtool_rx_flow_rule {
785 struct flow_rule *rule;
786 unsigned long priv[];
789 struct ethtool_rx_flow_spec_input {
790 const struct ethtool_rx_flow_spec *fs;
794 struct ethtool_rx_flow_rule *
795 ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input);
796 void ethtool_rx_flow_rule_destroy(struct ethtool_rx_flow_rule *rule);
798 bool ethtool_virtdev_validate_cmd(const struct ethtool_link_ksettings *cmd);
799 int ethtool_virtdev_set_link_ksettings(struct net_device *dev,
800 const struct ethtool_link_ksettings *cmd,
801 u32 *dev_speed, u8 *dev_duplex);
804 struct phy_tdr_config;
807 * struct ethtool_phy_ops - Optional PHY device options
808 * @get_sset_count: Get number of strings that @get_strings will write.
809 * @get_strings: Return a set of strings that describe the requested objects
810 * @get_stats: Return extended statistics about the PHY device.
811 * @start_cable_test: Start a cable test
812 * @start_cable_test_tdr: Start a Time Domain Reflectometry cable test
814 * All operations are optional (i.e. the function pointer may be set to %NULL)
815 * and callers must take this into account. Callers must hold the RTNL lock.
817 struct ethtool_phy_ops {
818 int (*get_sset_count)(struct phy_device *dev);
819 int (*get_strings)(struct phy_device *dev, u8 *data);
820 int (*get_stats)(struct phy_device *dev,
821 struct ethtool_stats *stats, u64 *data);
822 int (*start_cable_test)(struct phy_device *phydev,
823 struct netlink_ext_ack *extack);
824 int (*start_cable_test_tdr)(struct phy_device *phydev,
825 struct netlink_ext_ack *extack,
826 const struct phy_tdr_config *config);
830 * ethtool_set_ethtool_phy_ops - Set the ethtool_phy_ops singleton
831 * @ops: Ethtool PHY operations to set
833 void ethtool_set_ethtool_phy_ops(const struct ethtool_phy_ops *ops);
836 * ethtool_params_from_link_mode - Derive link parameters from a given link mode
837 * @link_ksettings: Link parameters to be derived from the link mode
838 * @link_mode: Link mode
841 ethtool_params_from_link_mode(struct ethtool_link_ksettings *link_ksettings,
842 enum ethtool_link_mode_bit_indices link_mode);
845 * ethtool_get_phc_vclocks - Derive phc vclocks information, and caller
846 * is responsible to free memory of vclock_index
847 * @dev: pointer to net_device structure
848 * @vclock_index: pointer to pointer of vclock index
850 * Return number of phc vclocks
852 int ethtool_get_phc_vclocks(struct net_device *dev, int **vclock_index);
855 * ethtool_sprintf - Write formatted string to ethtool string data
856 * @data: Pointer to start of string to update
857 * @fmt: Format of string to write
859 * Write formatted string to data. Update data to point at start of
862 extern __printf(2, 3) void ethtool_sprintf(u8 **data, const char *fmt, ...);
863 #endif /* _LINUX_ETHTOOL_H */