1 /* SPDX-License-Identifier: GPL-2.0 */
3 * ethtool.h: Defines for Linux ethtool.
5 * Copyright (C) 1998 David S. Miller (davem@redhat.com)
6 * Copyright 2001 Jeff Garzik <jgarzik@pobox.com>
7 * Portions Copyright 2001 Sun Microsystems (thockin@sun.com)
8 * Portions Copyright 2002 Intel (eli.kupermann@intel.com,
9 * christopher.leech@intel.com,
10 * scott.feldman@intel.com)
11 * Portions Copyright (C) Sun Microsystems 2008
13 #ifndef _LINUX_ETHTOOL_H
14 #define _LINUX_ETHTOOL_H
16 #include <linux/bitmap.h>
17 #include <linux/compat.h>
18 #include <linux/if_ether.h>
19 #include <linux/netlink.h>
20 #include <uapi/linux/ethtool.h>
22 struct compat_ethtool_rx_flow_spec {
24 union ethtool_flow_union h_u;
25 struct ethtool_flow_ext h_ext;
26 union ethtool_flow_union m_u;
27 struct ethtool_flow_ext m_ext;
28 compat_u64 ring_cookie;
32 struct compat_ethtool_rxnfc {
36 struct compat_ethtool_rx_flow_spec fs;
41 #include <linux/rculist.h>
44 * enum ethtool_phys_id_state - indicator state for physical identification
45 * @ETHTOOL_ID_INACTIVE: Physical ID indicator should be deactivated
46 * @ETHTOOL_ID_ACTIVE: Physical ID indicator should be activated
47 * @ETHTOOL_ID_ON: LED should be turned on (used iff %ETHTOOL_ID_ACTIVE
49 * @ETHTOOL_ID_OFF: LED should be turned off (used iff %ETHTOOL_ID_ACTIVE
52 enum ethtool_phys_id_state {
60 ETH_RSS_HASH_TOP_BIT, /* Configurable RSS hash function - Toeplitz */
61 ETH_RSS_HASH_XOR_BIT, /* Configurable RSS hash function - Xor */
62 ETH_RSS_HASH_CRC32_BIT, /* Configurable RSS hash function - Crc32 */
65 * Add your fresh new hash function bits above and remember to update
66 * rss_hash_func_strings[] in ethtool.c
68 ETH_RSS_HASH_FUNCS_COUNT
72 * struct kernel_ethtool_ringparam - RX/TX ring configuration
73 * @rx_buf_len: Current length of buffers on the rx ring.
74 * @tcp_data_split: Scatter packet headers and data to separate buffers
75 * @tx_push: The flag of tx push mode
76 * @rx_push: The flag of rx push mode
77 * @cqe_size: Size of TX/RX completion queue event
78 * @tx_push_buf_len: Size of TX push buffer
79 * @tx_push_buf_max_len: Maximum allowed size of TX push buffer
81 struct kernel_ethtool_ringparam {
88 u32 tx_push_buf_max_len;
92 * enum ethtool_supported_ring_param - indicator caps for setting ring params
93 * @ETHTOOL_RING_USE_RX_BUF_LEN: capture for setting rx_buf_len
94 * @ETHTOOL_RING_USE_CQE_SIZE: capture for setting cqe_size
95 * @ETHTOOL_RING_USE_TX_PUSH: capture for setting tx_push
96 * @ETHTOOL_RING_USE_RX_PUSH: capture for setting rx_push
97 * @ETHTOOL_RING_USE_TX_PUSH_BUF_LEN: capture for setting tx_push_buf_len
98 * @ETHTOOL_RING_USE_TCP_DATA_SPLIT: capture for setting tcp_data_split
100 enum ethtool_supported_ring_param {
101 ETHTOOL_RING_USE_RX_BUF_LEN = BIT(0),
102 ETHTOOL_RING_USE_CQE_SIZE = BIT(1),
103 ETHTOOL_RING_USE_TX_PUSH = BIT(2),
104 ETHTOOL_RING_USE_RX_PUSH = BIT(3),
105 ETHTOOL_RING_USE_TX_PUSH_BUF_LEN = BIT(4),
106 ETHTOOL_RING_USE_TCP_DATA_SPLIT = BIT(5),
109 #define __ETH_RSS_HASH_BIT(bit) ((u32)1 << (bit))
110 #define __ETH_RSS_HASH(name) __ETH_RSS_HASH_BIT(ETH_RSS_HASH_##name##_BIT)
112 #define ETH_RSS_HASH_TOP __ETH_RSS_HASH(TOP)
113 #define ETH_RSS_HASH_XOR __ETH_RSS_HASH(XOR)
114 #define ETH_RSS_HASH_CRC32 __ETH_RSS_HASH(CRC32)
116 #define ETH_RSS_HASH_UNKNOWN 0
117 #define ETH_RSS_HASH_NO_CHANGE 0
120 struct netlink_ext_ack;
122 /* Link extended state and substate. */
123 struct ethtool_link_ext_state_info {
124 enum ethtool_link_ext_state link_ext_state;
126 enum ethtool_link_ext_substate_autoneg autoneg;
127 enum ethtool_link_ext_substate_link_training link_training;
128 enum ethtool_link_ext_substate_link_logical_mismatch link_logical_mismatch;
129 enum ethtool_link_ext_substate_bad_signal_integrity bad_signal_integrity;
130 enum ethtool_link_ext_substate_cable_issue cable_issue;
131 enum ethtool_link_ext_substate_module module;
132 u32 __link_ext_substate;
136 struct ethtool_link_ext_stats {
137 /* Custom Linux statistic for PHY level link down events.
138 * In a simpler world it should be equal to netdev->carrier_down_count
139 * unfortunately netdev also counts local reconfigurations which don't
140 * actually take the physical link down, not to mention NC-SI which,
141 * if present, keeps the link up regardless of host state.
142 * This statistic counts when PHY _actually_ went down, or lost link.
144 * Note that we need u64 for ethtool_stats_init() and comparisons
145 * to ETHTOOL_STAT_NOT_SET, but only u32 is exposed to the user.
147 u64 link_down_events;
151 * ethtool_rxfh_indir_default - get default value for RX flow hash indirection
152 * @index: Index in RX flow hash indirection table
153 * @n_rx_rings: Number of RX rings to use
155 * This function provides the default policy for RX flow hash indirection.
157 static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings)
159 return index % n_rx_rings;
162 /* declare a link mode bitmap */
163 #define __ETHTOOL_DECLARE_LINK_MODE_MASK(name) \
164 DECLARE_BITMAP(name, __ETHTOOL_LINK_MODE_MASK_NBITS)
166 /* drivers must ignore base.cmd and base.link_mode_masks_nwords
167 * fields, but they are allowed to overwrite them (will be ignored).
169 struct ethtool_link_ksettings {
170 struct ethtool_link_settings base;
172 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
173 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
174 __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising);
180 * ethtool_link_ksettings_zero_link_mode - clear link_ksettings link mode mask
181 * @ptr : pointer to struct ethtool_link_ksettings
182 * @name : one of supported/advertising/lp_advertising
184 #define ethtool_link_ksettings_zero_link_mode(ptr, name) \
185 bitmap_zero((ptr)->link_modes.name, __ETHTOOL_LINK_MODE_MASK_NBITS)
188 * ethtool_link_ksettings_add_link_mode - set bit in link_ksettings
190 * @ptr : pointer to struct ethtool_link_ksettings
191 * @name : one of supported/advertising/lp_advertising
192 * @mode : one of the ETHTOOL_LINK_MODE_*_BIT
193 * (not atomic, no bound checking)
195 #define ethtool_link_ksettings_add_link_mode(ptr, name, mode) \
196 __set_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
199 * ethtool_link_ksettings_del_link_mode - clear bit in link_ksettings
201 * @ptr : pointer to struct ethtool_link_ksettings
202 * @name : one of supported/advertising/lp_advertising
203 * @mode : one of the ETHTOOL_LINK_MODE_*_BIT
204 * (not atomic, no bound checking)
206 #define ethtool_link_ksettings_del_link_mode(ptr, name, mode) \
207 __clear_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
210 * ethtool_link_ksettings_test_link_mode - test bit in ksettings link mode mask
211 * @ptr : pointer to struct ethtool_link_ksettings
212 * @name : one of supported/advertising/lp_advertising
213 * @mode : one of the ETHTOOL_LINK_MODE_*_BIT
214 * (not atomic, no bound checking)
216 * Returns true/false.
218 #define ethtool_link_ksettings_test_link_mode(ptr, name, mode) \
219 test_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
222 __ethtool_get_link_ksettings(struct net_device *dev,
223 struct ethtool_link_ksettings *link_ksettings);
225 struct kernel_ethtool_coalesce {
228 u32 tx_aggr_max_bytes;
229 u32 tx_aggr_max_frames;
230 u32 tx_aggr_time_usecs;
234 * ethtool_intersect_link_masks - Given two link masks, AND them together
235 * @dst: first mask and where result is stored
236 * @src: second mask to intersect with
238 * Given two link mode masks, AND them together and save the result in dst.
240 void ethtool_intersect_link_masks(struct ethtool_link_ksettings *dst,
241 struct ethtool_link_ksettings *src);
243 void ethtool_convert_legacy_u32_to_link_mode(unsigned long *dst,
246 /* return false if src had higher bits set. lower bits always updated. */
247 bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32,
248 const unsigned long *src);
250 #define ETHTOOL_COALESCE_RX_USECS BIT(0)
251 #define ETHTOOL_COALESCE_RX_MAX_FRAMES BIT(1)
252 #define ETHTOOL_COALESCE_RX_USECS_IRQ BIT(2)
253 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ BIT(3)
254 #define ETHTOOL_COALESCE_TX_USECS BIT(4)
255 #define ETHTOOL_COALESCE_TX_MAX_FRAMES BIT(5)
256 #define ETHTOOL_COALESCE_TX_USECS_IRQ BIT(6)
257 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ BIT(7)
258 #define ETHTOOL_COALESCE_STATS_BLOCK_USECS BIT(8)
259 #define ETHTOOL_COALESCE_USE_ADAPTIVE_RX BIT(9)
260 #define ETHTOOL_COALESCE_USE_ADAPTIVE_TX BIT(10)
261 #define ETHTOOL_COALESCE_PKT_RATE_LOW BIT(11)
262 #define ETHTOOL_COALESCE_RX_USECS_LOW BIT(12)
263 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW BIT(13)
264 #define ETHTOOL_COALESCE_TX_USECS_LOW BIT(14)
265 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW BIT(15)
266 #define ETHTOOL_COALESCE_PKT_RATE_HIGH BIT(16)
267 #define ETHTOOL_COALESCE_RX_USECS_HIGH BIT(17)
268 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH BIT(18)
269 #define ETHTOOL_COALESCE_TX_USECS_HIGH BIT(19)
270 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH BIT(20)
271 #define ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL BIT(21)
272 #define ETHTOOL_COALESCE_USE_CQE_RX BIT(22)
273 #define ETHTOOL_COALESCE_USE_CQE_TX BIT(23)
274 #define ETHTOOL_COALESCE_TX_AGGR_MAX_BYTES BIT(24)
275 #define ETHTOOL_COALESCE_TX_AGGR_MAX_FRAMES BIT(25)
276 #define ETHTOOL_COALESCE_TX_AGGR_TIME_USECS BIT(26)
277 #define ETHTOOL_COALESCE_ALL_PARAMS GENMASK(26, 0)
279 #define ETHTOOL_COALESCE_USECS \
280 (ETHTOOL_COALESCE_RX_USECS | ETHTOOL_COALESCE_TX_USECS)
281 #define ETHTOOL_COALESCE_MAX_FRAMES \
282 (ETHTOOL_COALESCE_RX_MAX_FRAMES | ETHTOOL_COALESCE_TX_MAX_FRAMES)
283 #define ETHTOOL_COALESCE_USECS_IRQ \
284 (ETHTOOL_COALESCE_RX_USECS_IRQ | ETHTOOL_COALESCE_TX_USECS_IRQ)
285 #define ETHTOOL_COALESCE_MAX_FRAMES_IRQ \
286 (ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ | \
287 ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ)
288 #define ETHTOOL_COALESCE_USE_ADAPTIVE \
289 (ETHTOOL_COALESCE_USE_ADAPTIVE_RX | ETHTOOL_COALESCE_USE_ADAPTIVE_TX)
290 #define ETHTOOL_COALESCE_USECS_LOW_HIGH \
291 (ETHTOOL_COALESCE_RX_USECS_LOW | ETHTOOL_COALESCE_TX_USECS_LOW | \
292 ETHTOOL_COALESCE_RX_USECS_HIGH | ETHTOOL_COALESCE_TX_USECS_HIGH)
293 #define ETHTOOL_COALESCE_MAX_FRAMES_LOW_HIGH \
294 (ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW | \
295 ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW | \
296 ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH | \
297 ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH)
298 #define ETHTOOL_COALESCE_PKT_RATE_RX_USECS \
299 (ETHTOOL_COALESCE_USE_ADAPTIVE_RX | \
300 ETHTOOL_COALESCE_RX_USECS_LOW | ETHTOOL_COALESCE_RX_USECS_HIGH | \
301 ETHTOOL_COALESCE_PKT_RATE_LOW | ETHTOOL_COALESCE_PKT_RATE_HIGH | \
302 ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL)
303 #define ETHTOOL_COALESCE_USE_CQE \
304 (ETHTOOL_COALESCE_USE_CQE_RX | ETHTOOL_COALESCE_USE_CQE_TX)
305 #define ETHTOOL_COALESCE_TX_AGGR \
306 (ETHTOOL_COALESCE_TX_AGGR_MAX_BYTES | \
307 ETHTOOL_COALESCE_TX_AGGR_MAX_FRAMES | \
308 ETHTOOL_COALESCE_TX_AGGR_TIME_USECS)
310 #define ETHTOOL_STAT_NOT_SET (~0ULL)
312 static inline void ethtool_stats_init(u64 *stats, unsigned int n)
315 stats[n] = ETHTOOL_STAT_NOT_SET;
318 /* Basic IEEE 802.3 MAC statistics (30.3.1.1.*), not otherwise exposed
319 * via a more targeted API.
321 struct ethtool_eth_mac_stats {
322 enum ethtool_mac_stats_src src;
324 u64 FramesTransmittedOK;
325 u64 SingleCollisionFrames;
326 u64 MultipleCollisionFrames;
327 u64 FramesReceivedOK;
328 u64 FrameCheckSequenceErrors;
330 u64 OctetsTransmittedOK;
331 u64 FramesWithDeferredXmissions;
333 u64 FramesAbortedDueToXSColls;
334 u64 FramesLostDueToIntMACXmitError;
335 u64 CarrierSenseErrors;
336 u64 OctetsReceivedOK;
337 u64 FramesLostDueToIntMACRcvError;
338 u64 MulticastFramesXmittedOK;
339 u64 BroadcastFramesXmittedOK;
340 u64 FramesWithExcessiveDeferral;
341 u64 MulticastFramesReceivedOK;
342 u64 BroadcastFramesReceivedOK;
343 u64 InRangeLengthErrors;
344 u64 OutOfRangeLengthField;
345 u64 FrameTooLongErrors;
349 /* Basic IEEE 802.3 PHY statistics (30.3.2.1.*), not otherwise exposed
350 * via a more targeted API.
352 struct ethtool_eth_phy_stats {
353 enum ethtool_mac_stats_src src;
355 u64 SymbolErrorDuringCarrier;
359 /* Basic IEEE 802.3 MAC Ctrl statistics (30.3.3.*), not otherwise exposed
360 * via a more targeted API.
362 struct ethtool_eth_ctrl_stats {
363 enum ethtool_mac_stats_src src;
365 u64 MACControlFramesTransmitted;
366 u64 MACControlFramesReceived;
367 u64 UnsupportedOpcodesReceived;
372 * struct ethtool_pause_stats - statistics for IEEE 802.3x pause frames
373 * @src: input field denoting whether stats should be queried from the eMAC or
374 * pMAC (if the MM layer is supported). To be ignored otherwise.
375 * @tx_pause_frames: transmitted pause frame count. Reported to user space
376 * as %ETHTOOL_A_PAUSE_STAT_TX_FRAMES.
378 * Equivalent to `30.3.4.2 aPAUSEMACCtrlFramesTransmitted`
381 * @rx_pause_frames: received pause frame count. Reported to user space
382 * as %ETHTOOL_A_PAUSE_STAT_RX_FRAMES. Equivalent to:
384 * Equivalent to `30.3.4.3 aPAUSEMACCtrlFramesReceived`
387 struct ethtool_pause_stats {
388 enum ethtool_mac_stats_src src;
395 #define ETHTOOL_MAX_LANES 8
398 * struct ethtool_fec_stats - statistics for IEEE 802.3 FEC
399 * @corrected_blocks: number of received blocks corrected by FEC
400 * Reported to user space as %ETHTOOL_A_FEC_STAT_CORRECTED.
402 * Equivalent to `30.5.1.1.17 aFECCorrectedBlocks` from the standard.
404 * @uncorrectable_blocks: number of received blocks FEC was not able to correct
405 * Reported to user space as %ETHTOOL_A_FEC_STAT_UNCORR.
407 * Equivalent to `30.5.1.1.18 aFECUncorrectableBlocks` from the standard.
409 * @corrected_bits: number of bits corrected by FEC
410 * Similar to @corrected_blocks but counts individual bit changes,
411 * not entire FEC data blocks. This is a non-standard statistic.
412 * Reported to user space as %ETHTOOL_A_FEC_STAT_CORR_BITS.
414 * For each of the above fields, the two substructure members are:
416 * - @lanes: per-lane/PCS-instance counts as defined by the standard
417 * - @total: error counts for the entire port, for drivers incapable of reporting
420 * Drivers should fill in either only total or per-lane statistics, core
421 * will take care of adding lane values up to produce the total.
423 struct ethtool_fec_stats {
424 struct ethtool_fec_stat {
426 u64 lanes[ETHTOOL_MAX_LANES];
427 } corrected_blocks, uncorrectable_blocks, corrected_bits;
431 * struct ethtool_rmon_hist_range - byte range for histogram statistics
432 * @low: low bound of the bucket (inclusive)
433 * @high: high bound of the bucket (inclusive)
435 struct ethtool_rmon_hist_range {
440 #define ETHTOOL_RMON_HIST_MAX 10
443 * struct ethtool_rmon_stats - selected RMON (RFC 2819) statistics
444 * @src: input field denoting whether stats should be queried from the eMAC or
445 * pMAC (if the MM layer is supported). To be ignored otherwise.
446 * @undersize_pkts: Equivalent to `etherStatsUndersizePkts` from the RFC.
447 * @oversize_pkts: Equivalent to `etherStatsOversizePkts` from the RFC.
448 * @fragments: Equivalent to `etherStatsFragments` from the RFC.
449 * @jabbers: Equivalent to `etherStatsJabbers` from the RFC.
450 * @hist: Packet counter for packet length buckets (e.g.
451 * `etherStatsPkts128to255Octets` from the RFC).
452 * @hist_tx: Tx counters in similar form to @hist, not defined in the RFC.
454 * Selection of RMON (RFC 2819) statistics which are not exposed via different
455 * APIs, primarily the packet-length-based counters.
456 * Unfortunately different designs choose different buckets beyond
457 * the 1024B mark (jumbo frame teritory), so the definition of the bucket
458 * ranges is left to the driver.
460 struct ethtool_rmon_stats {
461 enum ethtool_mac_stats_src src;
468 u64 hist[ETHTOOL_RMON_HIST_MAX];
469 u64 hist_tx[ETHTOOL_RMON_HIST_MAX];
473 #define ETH_MODULE_EEPROM_PAGE_LEN 128
474 #define ETH_MODULE_MAX_I2C_ADDRESS 0x7f
477 * struct ethtool_module_eeprom - EEPROM dump from specified page
478 * @offset: Offset within the specified EEPROM page to begin read, in bytes.
479 * @length: Number of bytes to read.
480 * @page: Page number to read from.
481 * @bank: Page bank number to read from, if applicable by EEPROM spec.
482 * @i2c_address: I2C address of a page. Value less than 0x7f expected. Most
483 * EEPROMs use 0x50 or 0x51.
484 * @data: Pointer to buffer with EEPROM data of @length size.
486 * This can be used to manage pages during EEPROM dump in ethtool and pass
487 * required information to the driver.
489 struct ethtool_module_eeprom {
499 * struct ethtool_module_power_mode_params - module power mode parameters
500 * @policy: The power mode policy enforced by the host for the plug-in module.
501 * @mode: The operational power mode of the plug-in module. Should be filled by
502 * device drivers on get operations.
504 struct ethtool_module_power_mode_params {
505 enum ethtool_module_power_mode_policy policy;
506 enum ethtool_module_power_mode mode;
510 * struct ethtool_mm_state - 802.3 MAC merge layer state
512 * wait time between verification attempts in ms (according to clause
513 * 30.14.1.6 aMACMergeVerifyTime)
515 * maximum accepted value for the @verify_time variable in set requests
517 * state of the verification state machine of the MM layer (according to
518 * clause 30.14.1.2 aMACMergeStatusVerify)
520 * set if the MM layer is administratively enabled in the TX direction
521 * (according to clause 30.14.1.3 aMACMergeEnableTx)
523 * set if the MM layer is enabled in the TX direction, which makes FP
524 * possible (according to 30.14.1.5 aMACMergeStatusTx). This should be
525 * true if MM is enabled, and the verification status is either verified,
528 * set if the preemptible MAC is powered on and is able to receive
529 * preemptible packets and respond to verification frames.
531 * set if the Verify function of the MM layer (which sends SMD-V
532 * verification requests) is administratively enabled (regardless of
533 * whether it is currently in the ETHTOOL_MM_VERIFY_STATUS_DISABLED state
534 * or not), according to clause 30.14.1.4 aMACMergeVerifyDisableTx (but
535 * using positive rather than negative logic). The device should always
536 * respond to received SMD-V requests as long as @pmac_enabled is set.
538 * the minimum size of non-final mPacket fragments that the link partner
539 * supports receiving, expressed in octets. Compared to the definition
540 * from clause 30.14.1.7 aMACMergeAddFragSize which is expressed in the
541 * range 0 to 3 (requiring a translation to the size in octets according
542 * to the formula 64 * (1 + addFragSize) - 4), a value in a continuous and
543 * unbounded range can be specified here.
545 * the minimum size of non-final mPacket fragments that this device
546 * supports receiving, expressed in octets.
548 struct ethtool_mm_state {
551 enum ethtool_mm_verify_status verify_status;
556 u32 tx_min_frag_size;
557 u32 rx_min_frag_size;
561 * struct ethtool_mm_cfg - 802.3 MAC merge layer configuration
562 * @verify_time: see struct ethtool_mm_state
563 * @verify_enabled: see struct ethtool_mm_state
564 * @tx_enabled: see struct ethtool_mm_state
565 * @pmac_enabled: see struct ethtool_mm_state
566 * @tx_min_frag_size: see struct ethtool_mm_state
568 struct ethtool_mm_cfg {
573 u32 tx_min_frag_size;
577 * struct ethtool_mm_stats - 802.3 MAC merge layer statistics
578 * @MACMergeFrameAssErrorCount:
579 * received MAC frames with reassembly errors
580 * @MACMergeFrameSmdErrorCount:
581 * received MAC frames/fragments rejected due to unknown or incorrect SMD
582 * @MACMergeFrameAssOkCount:
583 * received MAC frames that were successfully reassembled and passed up
584 * @MACMergeFragCountRx:
585 * number of additional correct SMD-C mPackets received due to preemption
586 * @MACMergeFragCountTx:
587 * number of additional mPackets sent due to preemption
588 * @MACMergeHoldCount:
589 * number of times the MM layer entered the HOLD state, which blocks
590 * transmission of preemptible traffic
592 struct ethtool_mm_stats {
593 u64 MACMergeFrameAssErrorCount;
594 u64 MACMergeFrameSmdErrorCount;
595 u64 MACMergeFrameAssOkCount;
596 u64 MACMergeFragCountRx;
597 u64 MACMergeFragCountTx;
598 u64 MACMergeHoldCount;
602 * struct ethtool_rxfh_param - RXFH (RSS) parameters
603 * @hfunc: Defines the current RSS hash function used by HW (or to be set to).
604 * Valid values are one of the %ETH_RSS_HASH_*.
605 * @indir_size: On SET, the array size of the user buffer for the
606 * indirection table, which may be zero, or
607 * %ETH_RXFH_INDIR_NO_CHANGE. On GET (read from the driver),
608 * the array size of the hardware indirection table.
609 * @indir: The indirection table of size @indir_size entries.
610 * @key_size: On SET, the array size of the user buffer for the hash key,
611 * which may be zero. On GET (read from the driver), the size of the
613 * @key: The hash key of size @key_size bytes.
614 * @rss_context: RSS context identifier. Context 0 is the default for normal
615 * traffic; other contexts can be referenced as the destination for RX flow
616 * classification rules. On SET, %ETH_RXFH_CONTEXT_ALLOC is used
617 * to allocate a new RSS context; on return this field will
618 * contain the ID of the newly allocated context.
619 * @rss_delete: Set to non-ZERO to remove the @rss_context context.
620 * @input_xfrm: Defines how the input data is transformed. Valid values are one
623 struct ethtool_rxfh_param {
635 * struct ethtool_ops - optional netdev operations
636 * @cap_link_lanes_supported: indicates if the driver supports lanes
638 * @cap_rss_ctx_supported: indicates if the driver supports RSS
640 * @cap_rss_sym_xor_supported: indicates if the driver supports symmetric-xor
642 * @supported_coalesce_params: supported types of interrupt coalescing.
643 * @supported_ring_params: supported ring params.
644 * @get_drvinfo: Report driver/device information. Modern drivers no
645 * longer have to implement this callback. Most fields are
646 * correctly filled in by the core using system information, or
647 * populated using other driver operations.
648 * @get_regs_len: Get buffer length required for @get_regs
649 * @get_regs: Get device registers
650 * @get_wol: Report whether Wake-on-Lan is enabled
651 * @set_wol: Turn Wake-on-Lan on or off. Returns a negative error code
653 * @get_msglevel: Report driver message level. This should be the value
654 * of the @msg_enable field used by netif logging functions.
655 * @set_msglevel: Set driver message level
656 * @nway_reset: Restart autonegotiation. Returns a negative error code
658 * @get_link: Report whether physical link is up. Will only be called if
659 * the netdev is up. Should usually be set to ethtool_op_get_link(),
660 * which uses netif_carrier_ok().
661 * @get_link_ext_state: Report link extended state. Should set link_ext_state and
662 * link_ext_substate (link_ext_substate of 0 means link_ext_substate is unknown,
663 * do not attach ext_substate attribute to netlink message). If link_ext_state
664 * and link_ext_substate are unknown, return -ENODATA. If not implemented,
665 * link_ext_state and link_ext_substate will not be sent to userspace.
666 * @get_link_ext_stats: Read extra link-related counters.
667 * @get_eeprom_len: Read range of EEPROM addresses for validation of
668 * @get_eeprom and @set_eeprom requests.
669 * Returns 0 if device does not support EEPROM access.
670 * @get_eeprom: Read data from the device EEPROM.
671 * Should fill in the magic field. Don't need to check len for zero
672 * or wraparound. Fill in the data argument with the eeprom values
673 * from offset to offset + len. Update len to the amount read.
674 * Returns an error or zero.
675 * @set_eeprom: Write data to the device EEPROM.
676 * Should validate the magic field. Don't need to check len for zero
677 * or wraparound. Update len to the amount written. Returns an error
679 * @get_coalesce: Get interrupt coalescing parameters. Returns a negative
680 * error code or zero.
681 * @set_coalesce: Set interrupt coalescing parameters. Supported coalescing
682 * types should be set in @supported_coalesce_params.
683 * Returns a negative error code or zero.
684 * @get_ringparam: Report ring sizes
685 * @set_ringparam: Set ring sizes. Returns a negative error code or zero.
686 * @get_pause_stats: Report pause frame statistics. Drivers must not zero
687 * statistics which they don't report. The stats structure is initialized
688 * to ETHTOOL_STAT_NOT_SET indicating driver does not report statistics.
689 * @get_pauseparam: Report pause parameters
690 * @set_pauseparam: Set pause parameters. Returns a negative error code
692 * @self_test: Run specified self-tests
693 * @get_strings: Return a set of strings that describe the requested objects
694 * @set_phys_id: Identify the physical devices, e.g. by flashing an LED
695 * attached to it. The implementation may update the indicator
696 * asynchronously or synchronously, but in either case it must return
697 * quickly. It is initially called with the argument %ETHTOOL_ID_ACTIVE,
698 * and must either activate asynchronous updates and return zero, return
699 * a negative error or return a positive frequency for synchronous
700 * indication (e.g. 1 for one on/off cycle per second). If it returns
701 * a frequency then it will be called again at intervals with the
702 * argument %ETHTOOL_ID_ON or %ETHTOOL_ID_OFF and should set the state of
703 * the indicator accordingly. Finally, it is called with the argument
704 * %ETHTOOL_ID_INACTIVE and must deactivate the indicator. Returns a
705 * negative error code or zero.
706 * @get_ethtool_stats: Return extended statistics about the device.
707 * This is only useful if the device maintains statistics not
708 * included in &struct rtnl_link_stats64.
709 * @begin: Function to be called before any other operation. Returns a
710 * negative error code or zero.
711 * @complete: Function to be called after any other operation except
712 * @begin. Will be called even if the other operation failed.
713 * @get_priv_flags: Report driver-specific feature flags.
714 * @set_priv_flags: Set driver-specific feature flags. Returns a negative
715 * error code or zero.
716 * @get_sset_count: Get number of strings that @get_strings will write.
717 * @get_rxnfc: Get RX flow classification rules. Returns a negative
718 * error code or zero.
719 * @set_rxnfc: Set RX flow classification rules. Returns a negative
720 * error code or zero.
721 * @flash_device: Write a firmware image to device's flash memory.
722 * Returns a negative error code or zero.
723 * @reset: Reset (part of) the device, as specified by a bitmask of
724 * flags from &enum ethtool_reset_flags. Returns a negative
725 * error code or zero.
726 * @get_rxfh_key_size: Get the size of the RX flow hash key.
727 * Returns zero if not supported for this specific device.
728 * @get_rxfh_indir_size: Get the size of the RX flow hash indirection table.
729 * Returns zero if not supported for this specific device.
730 * @get_rxfh: Get the contents of the RX flow hash indirection table, hash key
731 * and/or hash function.
732 * Returns a negative error code or zero.
733 * @set_rxfh: Set the contents of the RX flow hash indirection table, hash
734 * key, and/or hash function. Arguments which are set to %NULL or zero
735 * will remain unchanged.
736 * Returns a negative error code or zero. An error code must be returned
737 * if at least one unsupported change was requested.
738 * @get_channels: Get number of channels.
739 * @set_channels: Set number of channels. Returns a negative error code or
741 * @get_dump_flag: Get dump flag indicating current dump length, version,
742 * and flag of the device.
743 * @get_dump_data: Get dump data.
744 * @set_dump: Set dump specific flags to the device.
745 * @get_ts_info: Get the time stamping and PTP hardware clock capabilities.
746 * It may be called with RCU, or rtnl or reference on the device.
747 * Drivers supporting transmit time stamps in software should set this to
748 * ethtool_op_get_ts_info().
749 * @get_module_info: Get the size and type of the eeprom contained within
751 * @get_module_eeprom: Get the eeprom information from the plug-in module
752 * @get_eee: Get Energy-Efficient (EEE) supported and status.
753 * @set_eee: Set EEE status (enable/disable) as well as LPI timers.
754 * @get_tunable: Read the value of a driver / device tunable.
755 * @set_tunable: Set the value of a driver / device tunable.
756 * @get_per_queue_coalesce: Get interrupt coalescing parameters per queue.
757 * It must check that the given queue number is valid. If neither a RX nor
758 * a TX queue has this number, return -EINVAL. If only a RX queue or a TX
759 * queue has this number, set the inapplicable fields to ~0 and return 0.
760 * Returns a negative error code or zero.
761 * @set_per_queue_coalesce: Set interrupt coalescing parameters per queue.
762 * It must check that the given queue number is valid. If neither a RX nor
763 * a TX queue has this number, return -EINVAL. If only a RX queue or a TX
764 * queue has this number, ignore the inapplicable fields. Supported
765 * coalescing types should be set in @supported_coalesce_params.
766 * Returns a negative error code or zero.
767 * @get_link_ksettings: Get various device settings including Ethernet link
768 * settings. The %cmd and %link_mode_masks_nwords fields should be
769 * ignored (use %__ETHTOOL_LINK_MODE_MASK_NBITS instead of the latter),
770 * any change to them will be overwritten by kernel. Returns a negative
771 * error code or zero.
772 * @set_link_ksettings: Set various device settings including Ethernet link
773 * settings. The %cmd and %link_mode_masks_nwords fields should be
774 * ignored (use %__ETHTOOL_LINK_MODE_MASK_NBITS instead of the latter),
775 * any change to them will be overwritten by kernel. Returns a negative
776 * error code or zero.
777 * @get_fec_stats: Report FEC statistics.
778 * Core will sum up per-lane stats to get the total.
779 * Drivers must not zero statistics which they don't report. The stats
780 * structure is initialized to ETHTOOL_STAT_NOT_SET indicating driver does
781 * not report statistics.
782 * @get_fecparam: Get the network device Forward Error Correction parameters.
783 * @set_fecparam: Set the network device Forward Error Correction parameters.
784 * @get_ethtool_phy_stats: Return extended statistics about the PHY device.
785 * This is only useful if the device maintains PHY statistics and
786 * cannot use the standard PHY library helpers.
787 * @get_phy_tunable: Read the value of a PHY tunable.
788 * @set_phy_tunable: Set the value of a PHY tunable.
789 * @get_module_eeprom_by_page: Get a region of plug-in module EEPROM data from
790 * specified page. Returns a negative error code or the amount of bytes
792 * @get_eth_phy_stats: Query some of the IEEE 802.3 PHY statistics.
793 * @get_eth_mac_stats: Query some of the IEEE 802.3 MAC statistics.
794 * @get_eth_ctrl_stats: Query some of the IEEE 802.3 MAC Ctrl statistics.
795 * @get_rmon_stats: Query some of the RMON (RFC 2819) statistics.
796 * Set %ranges to a pointer to zero-terminated array of byte ranges.
797 * @get_module_power_mode: Get the power mode policy for the plug-in module
798 * used by the network device and its operational power mode, if
800 * @set_module_power_mode: Set the power mode policy for the plug-in module
801 * used by the network device.
802 * @get_mm: Query the 802.3 MAC Merge layer state.
803 * @set_mm: Set the 802.3 MAC Merge layer parameters.
804 * @get_mm_stats: Query the 802.3 MAC Merge layer statistics.
806 * All operations are optional (i.e. the function pointer may be set
807 * to %NULL) and callers must take this into account. Callers must
808 * hold the RTNL lock.
810 * See the structures used by these operations for further documentation.
811 * Note that for all operations using a structure ending with a zero-
812 * length array, the array is allocated separately in the kernel and
813 * is passed to the driver as an additional parameter.
815 * See &struct net_device and &struct net_device_ops for documentation
816 * of the generic netdev features interface.
819 u32 cap_link_lanes_supported:1;
820 u32 cap_rss_ctx_supported:1;
821 u32 cap_rss_sym_xor_supported:1;
822 u32 supported_coalesce_params;
823 u32 supported_ring_params;
824 void (*get_drvinfo)(struct net_device *, struct ethtool_drvinfo *);
825 int (*get_regs_len)(struct net_device *);
826 void (*get_regs)(struct net_device *, struct ethtool_regs *, void *);
827 void (*get_wol)(struct net_device *, struct ethtool_wolinfo *);
828 int (*set_wol)(struct net_device *, struct ethtool_wolinfo *);
829 u32 (*get_msglevel)(struct net_device *);
830 void (*set_msglevel)(struct net_device *, u32);
831 int (*nway_reset)(struct net_device *);
832 u32 (*get_link)(struct net_device *);
833 int (*get_link_ext_state)(struct net_device *,
834 struct ethtool_link_ext_state_info *);
835 void (*get_link_ext_stats)(struct net_device *dev,
836 struct ethtool_link_ext_stats *stats);
837 int (*get_eeprom_len)(struct net_device *);
838 int (*get_eeprom)(struct net_device *,
839 struct ethtool_eeprom *, u8 *);
840 int (*set_eeprom)(struct net_device *,
841 struct ethtool_eeprom *, u8 *);
842 int (*get_coalesce)(struct net_device *,
843 struct ethtool_coalesce *,
844 struct kernel_ethtool_coalesce *,
845 struct netlink_ext_ack *);
846 int (*set_coalesce)(struct net_device *,
847 struct ethtool_coalesce *,
848 struct kernel_ethtool_coalesce *,
849 struct netlink_ext_ack *);
850 void (*get_ringparam)(struct net_device *,
851 struct ethtool_ringparam *,
852 struct kernel_ethtool_ringparam *,
853 struct netlink_ext_ack *);
854 int (*set_ringparam)(struct net_device *,
855 struct ethtool_ringparam *,
856 struct kernel_ethtool_ringparam *,
857 struct netlink_ext_ack *);
858 void (*get_pause_stats)(struct net_device *dev,
859 struct ethtool_pause_stats *pause_stats);
860 void (*get_pauseparam)(struct net_device *,
861 struct ethtool_pauseparam*);
862 int (*set_pauseparam)(struct net_device *,
863 struct ethtool_pauseparam*);
864 void (*self_test)(struct net_device *, struct ethtool_test *, u64 *);
865 void (*get_strings)(struct net_device *, u32 stringset, u8 *);
866 int (*set_phys_id)(struct net_device *, enum ethtool_phys_id_state);
867 void (*get_ethtool_stats)(struct net_device *,
868 struct ethtool_stats *, u64 *);
869 int (*begin)(struct net_device *);
870 void (*complete)(struct net_device *);
871 u32 (*get_priv_flags)(struct net_device *);
872 int (*set_priv_flags)(struct net_device *, u32);
873 int (*get_sset_count)(struct net_device *, int);
874 int (*get_rxnfc)(struct net_device *,
875 struct ethtool_rxnfc *, u32 *rule_locs);
876 int (*set_rxnfc)(struct net_device *, struct ethtool_rxnfc *);
877 int (*flash_device)(struct net_device *, struct ethtool_flash *);
878 int (*reset)(struct net_device *, u32 *);
879 u32 (*get_rxfh_key_size)(struct net_device *);
880 u32 (*get_rxfh_indir_size)(struct net_device *);
881 int (*get_rxfh)(struct net_device *, struct ethtool_rxfh_param *);
882 int (*set_rxfh)(struct net_device *, struct ethtool_rxfh_param *,
883 struct netlink_ext_ack *extack);
884 void (*get_channels)(struct net_device *, struct ethtool_channels *);
885 int (*set_channels)(struct net_device *, struct ethtool_channels *);
886 int (*get_dump_flag)(struct net_device *, struct ethtool_dump *);
887 int (*get_dump_data)(struct net_device *,
888 struct ethtool_dump *, void *);
889 int (*set_dump)(struct net_device *, struct ethtool_dump *);
890 int (*get_ts_info)(struct net_device *, struct ethtool_ts_info *);
891 int (*get_module_info)(struct net_device *,
892 struct ethtool_modinfo *);
893 int (*get_module_eeprom)(struct net_device *,
894 struct ethtool_eeprom *, u8 *);
895 int (*get_eee)(struct net_device *, struct ethtool_eee *);
896 int (*set_eee)(struct net_device *, struct ethtool_eee *);
897 int (*get_tunable)(struct net_device *,
898 const struct ethtool_tunable *, void *);
899 int (*set_tunable)(struct net_device *,
900 const struct ethtool_tunable *, const void *);
901 int (*get_per_queue_coalesce)(struct net_device *, u32,
902 struct ethtool_coalesce *);
903 int (*set_per_queue_coalesce)(struct net_device *, u32,
904 struct ethtool_coalesce *);
905 int (*get_link_ksettings)(struct net_device *,
906 struct ethtool_link_ksettings *);
907 int (*set_link_ksettings)(struct net_device *,
908 const struct ethtool_link_ksettings *);
909 void (*get_fec_stats)(struct net_device *dev,
910 struct ethtool_fec_stats *fec_stats);
911 int (*get_fecparam)(struct net_device *,
912 struct ethtool_fecparam *);
913 int (*set_fecparam)(struct net_device *,
914 struct ethtool_fecparam *);
915 void (*get_ethtool_phy_stats)(struct net_device *,
916 struct ethtool_stats *, u64 *);
917 int (*get_phy_tunable)(struct net_device *,
918 const struct ethtool_tunable *, void *);
919 int (*set_phy_tunable)(struct net_device *,
920 const struct ethtool_tunable *, const void *);
921 int (*get_module_eeprom_by_page)(struct net_device *dev,
922 const struct ethtool_module_eeprom *page,
923 struct netlink_ext_ack *extack);
924 void (*get_eth_phy_stats)(struct net_device *dev,
925 struct ethtool_eth_phy_stats *phy_stats);
926 void (*get_eth_mac_stats)(struct net_device *dev,
927 struct ethtool_eth_mac_stats *mac_stats);
928 void (*get_eth_ctrl_stats)(struct net_device *dev,
929 struct ethtool_eth_ctrl_stats *ctrl_stats);
930 void (*get_rmon_stats)(struct net_device *dev,
931 struct ethtool_rmon_stats *rmon_stats,
932 const struct ethtool_rmon_hist_range **ranges);
933 int (*get_module_power_mode)(struct net_device *dev,
934 struct ethtool_module_power_mode_params *params,
935 struct netlink_ext_ack *extack);
936 int (*set_module_power_mode)(struct net_device *dev,
937 const struct ethtool_module_power_mode_params *params,
938 struct netlink_ext_ack *extack);
939 int (*get_mm)(struct net_device *dev, struct ethtool_mm_state *state);
940 int (*set_mm)(struct net_device *dev, struct ethtool_mm_cfg *cfg,
941 struct netlink_ext_ack *extack);
942 void (*get_mm_stats)(struct net_device *dev, struct ethtool_mm_stats *stats);
945 int ethtool_check_ops(const struct ethtool_ops *ops);
947 struct ethtool_rx_flow_rule {
948 struct flow_rule *rule;
949 unsigned long priv[];
952 struct ethtool_rx_flow_spec_input {
953 const struct ethtool_rx_flow_spec *fs;
957 struct ethtool_rx_flow_rule *
958 ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input);
959 void ethtool_rx_flow_rule_destroy(struct ethtool_rx_flow_rule *rule);
961 bool ethtool_virtdev_validate_cmd(const struct ethtool_link_ksettings *cmd);
962 int ethtool_virtdev_set_link_ksettings(struct net_device *dev,
963 const struct ethtool_link_ksettings *cmd,
964 u32 *dev_speed, u8 *dev_duplex);
967 struct phy_tdr_config;
969 struct phy_plca_status;
972 * struct ethtool_phy_ops - Optional PHY device options
973 * @get_sset_count: Get number of strings that @get_strings will write.
974 * @get_strings: Return a set of strings that describe the requested objects
975 * @get_stats: Return extended statistics about the PHY device.
976 * @get_plca_cfg: Return PLCA configuration.
977 * @set_plca_cfg: Set PLCA configuration.
978 * @get_plca_status: Get PLCA configuration.
979 * @start_cable_test: Start a cable test
980 * @start_cable_test_tdr: Start a Time Domain Reflectometry cable test
982 * All operations are optional (i.e. the function pointer may be set to %NULL)
983 * and callers must take this into account. Callers must hold the RTNL lock.
985 struct ethtool_phy_ops {
986 int (*get_sset_count)(struct phy_device *dev);
987 int (*get_strings)(struct phy_device *dev, u8 *data);
988 int (*get_stats)(struct phy_device *dev,
989 struct ethtool_stats *stats, u64 *data);
990 int (*get_plca_cfg)(struct phy_device *dev,
991 struct phy_plca_cfg *plca_cfg);
992 int (*set_plca_cfg)(struct phy_device *dev,
993 const struct phy_plca_cfg *plca_cfg,
994 struct netlink_ext_ack *extack);
995 int (*get_plca_status)(struct phy_device *dev,
996 struct phy_plca_status *plca_st);
997 int (*start_cable_test)(struct phy_device *phydev,
998 struct netlink_ext_ack *extack);
999 int (*start_cable_test_tdr)(struct phy_device *phydev,
1000 struct netlink_ext_ack *extack,
1001 const struct phy_tdr_config *config);
1005 * ethtool_set_ethtool_phy_ops - Set the ethtool_phy_ops singleton
1006 * @ops: Ethtool PHY operations to set
1008 void ethtool_set_ethtool_phy_ops(const struct ethtool_phy_ops *ops);
1011 * ethtool_params_from_link_mode - Derive link parameters from a given link mode
1012 * @link_ksettings: Link parameters to be derived from the link mode
1013 * @link_mode: Link mode
1016 ethtool_params_from_link_mode(struct ethtool_link_ksettings *link_ksettings,
1017 enum ethtool_link_mode_bit_indices link_mode);
1020 * ethtool_get_phc_vclocks - Derive phc vclocks information, and caller
1021 * is responsible to free memory of vclock_index
1022 * @dev: pointer to net_device structure
1023 * @vclock_index: pointer to pointer of vclock index
1025 * Return number of phc vclocks
1027 int ethtool_get_phc_vclocks(struct net_device *dev, int **vclock_index);
1029 /* Some generic methods drivers may use in their ethtool_ops */
1030 u32 ethtool_op_get_link(struct net_device *dev);
1031 int ethtool_op_get_ts_info(struct net_device *dev, struct ethtool_ts_info *eti);
1034 * ethtool_mm_frag_size_add_to_min - Translate (standard) additional fragment
1035 * size expressed as multiplier into (absolute) minimum fragment size
1036 * value expressed in octets
1037 * @val_add: Value of addFragSize multiplier
1039 static inline u32 ethtool_mm_frag_size_add_to_min(u32 val_add)
1041 return (ETH_ZLEN + ETH_FCS_LEN) * (1 + val_add) - ETH_FCS_LEN;
1045 * ethtool_mm_frag_size_min_to_add - Translate (absolute) minimum fragment size
1046 * expressed in octets into (standard) additional fragment size expressed
1048 * @val_min: Value of addFragSize variable in octets
1049 * @val_add: Pointer where the standard addFragSize value is to be returned
1050 * @extack: Netlink extended ack
1052 * Translate a value in octets to one of 0, 1, 2, 3 according to the reverse
1053 * application of the 802.3 formula 64 * (1 + addFragSize) - 4. To be called
1054 * by drivers which do not support programming the minimum fragment size to a
1055 * continuous range. Returns error on other fragment length values.
1057 static inline int ethtool_mm_frag_size_min_to_add(u32 val_min, u32 *val_add,
1058 struct netlink_ext_ack *extack)
1062 for (add_frag_size = 0; add_frag_size < 4; add_frag_size++) {
1063 if (ethtool_mm_frag_size_add_to_min(add_frag_size) == val_min) {
1064 *val_add = add_frag_size;
1069 NL_SET_ERR_MSG_MOD(extack,
1070 "minFragSize required to be one of 60, 124, 188 or 252");
1075 * ethtool_get_ts_info_by_layer - Obtains time stamping capabilities from the MAC or PHY layer.
1076 * @dev: pointer to net_device structure
1077 * @info: buffer to hold the result
1078 * Returns zero on success, non-zero otherwise.
1080 int ethtool_get_ts_info_by_layer(struct net_device *dev, struct ethtool_ts_info *info);
1083 * ethtool_sprintf - Write formatted string to ethtool string data
1084 * @data: Pointer to a pointer to the start of string to update
1085 * @fmt: Format of string to write
1087 * Write formatted string to *data. Update *data to point at start of
1090 extern __printf(2, 3) void ethtool_sprintf(u8 **data, const char *fmt, ...);
1093 * ethtool_puts - Write string to ethtool string data
1094 * @data: Pointer to a pointer to the start of string to update
1095 * @str: String to write
1097 * Write string to *data without a trailing newline. Update *data
1098 * to point at start of next string.
1100 * Prefer this function to ethtool_sprintf() when given only
1101 * two arguments or if @fmt is just "%s".
1103 extern void ethtool_puts(u8 **data, const char *str);
1105 /* Link mode to forced speed capabilities maps */
1106 struct ethtool_forced_speed_map {
1108 __ETHTOOL_DECLARE_LINK_MODE_MASK(caps);
1114 #define ETHTOOL_FORCED_SPEED_MAP(prefix, value) \
1116 .speed = SPEED_##value, \
1117 .cap_arr = prefix##_##value, \
1118 .arr_size = ARRAY_SIZE(prefix##_##value), \
1122 ethtool_forced_speed_maps_init(struct ethtool_forced_speed_map *maps, u32 size);
1123 #endif /* _LINUX_ETHTOOL_H */