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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
1da177e4 LT |
2 | /* |
3 | * ethtool.h: Defines for Linux ethtool. | |
4 | * | |
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) | |
59089d8d | 11 | * Portions Copyright (C) Sun Microsystems 2008 |
1da177e4 | 12 | */ |
1da177e4 LT |
13 | #ifndef _LINUX_ETHTOOL_H |
14 | #define _LINUX_ETHTOOL_H | |
15 | ||
3f1ac7a7 | 16 | #include <linux/bitmap.h> |
3a7da39d | 17 | #include <linux/compat.h> |
f3ccfda1 | 18 | #include <linux/netlink.h> |
607ca46e | 19 | #include <uapi/linux/ethtool.h> |
3ae7c0b2 | 20 | |
3a7da39d BH |
21 | struct compat_ethtool_rx_flow_spec { |
22 | u32 flow_type; | |
127fe533 AD |
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; | |
3a7da39d BH |
27 | compat_u64 ring_cookie; |
28 | u32 location; | |
29 | }; | |
30 | ||
31 | struct compat_ethtool_rxnfc { | |
32 | u32 cmd; | |
33 | u32 flow_type; | |
34 | compat_u64 data; | |
35 | struct compat_ethtool_rx_flow_spec fs; | |
36 | u32 rule_cnt; | |
5299a11a | 37 | u32 rule_locs[]; |
3a7da39d BH |
38 | }; |
39 | ||
a1467085 DM |
40 | #include <linux/rculist.h> |
41 | ||
68f512f2 BH |
42 | /** |
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 | |
47 | * is not supported) | |
48 | * @ETHTOOL_ID_OFF: LED should be turned off (used iff %ETHTOOL_ID_ACTIVE | |
49 | * is not supported) | |
50 | */ | |
51 | enum ethtool_phys_id_state { | |
52 | ETHTOOL_ID_INACTIVE, | |
53 | ETHTOOL_ID_ACTIVE, | |
54 | ETHTOOL_ID_ON, | |
55 | ETHTOOL_ID_OFF | |
56 | }; | |
57 | ||
892311f6 EP |
58 | enum { |
59 | ETH_RSS_HASH_TOP_BIT, /* Configurable RSS hash function - Toeplitz */ | |
60 | ETH_RSS_HASH_XOR_BIT, /* Configurable RSS hash function - Xor */ | |
abb521e3 | 61 | ETH_RSS_HASH_CRC32_BIT, /* Configurable RSS hash function - Crc32 */ |
892311f6 EP |
62 | |
63 | /* | |
64 | * Add your fresh new hash function bits above and remember to update | |
65 | * rss_hash_func_strings[] in ethtool.c | |
66 | */ | |
67 | ETH_RSS_HASH_FUNCS_COUNT | |
68 | }; | |
69 | ||
70 | #define __ETH_RSS_HASH_BIT(bit) ((u32)1 << (bit)) | |
71 | #define __ETH_RSS_HASH(name) __ETH_RSS_HASH_BIT(ETH_RSS_HASH_##name##_BIT) | |
72 | ||
73 | #define ETH_RSS_HASH_TOP __ETH_RSS_HASH(TOP) | |
74 | #define ETH_RSS_HASH_XOR __ETH_RSS_HASH(XOR) | |
abb521e3 | 75 | #define ETH_RSS_HASH_CRC32 __ETH_RSS_HASH(CRC32) |
892311f6 EP |
76 | |
77 | #define ETH_RSS_HASH_UNKNOWN 0 | |
78 | #define ETH_RSS_HASH_NO_CHANGE 0 | |
79 | ||
1da177e4 | 80 | struct net_device; |
c781ff12 | 81 | struct netlink_ext_ack; |
1da177e4 LT |
82 | |
83 | /* Some generic methods drivers may use in their ethtool_ops */ | |
84 | u32 ethtool_op_get_link(struct net_device *dev); | |
02eacbd0 | 85 | int ethtool_op_get_ts_info(struct net_device *dev, struct ethtool_ts_info *eti); |
1da177e4 | 86 | |
ecc31c60 | 87 | |
f0ebc2b6 | 88 | /* Link extended state and substate. */ |
ecc31c60 AC |
89 | struct ethtool_link_ext_state_info { |
90 | enum ethtool_link_ext_state link_ext_state; | |
91 | union { | |
92 | enum ethtool_link_ext_substate_autoneg autoneg; | |
93 | enum ethtool_link_ext_substate_link_training link_training; | |
94 | enum ethtool_link_ext_substate_link_logical_mismatch link_logical_mismatch; | |
95 | enum ethtool_link_ext_substate_bad_signal_integrity bad_signal_integrity; | |
96 | enum ethtool_link_ext_substate_cable_issue cable_issue; | |
5c63400c | 97 | u32 __link_ext_substate; |
ecc31c60 AC |
98 | }; |
99 | }; | |
100 | ||
278bc429 BH |
101 | /** |
102 | * ethtool_rxfh_indir_default - get default value for RX flow hash indirection | |
103 | * @index: Index in RX flow hash indirection table | |
104 | * @n_rx_rings: Number of RX rings to use | |
105 | * | |
106 | * This function provides the default policy for RX flow hash indirection. | |
107 | */ | |
108 | static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings) | |
109 | { | |
110 | return index % n_rx_rings; | |
111 | } | |
112 | ||
3f1ac7a7 DD |
113 | /* declare a link mode bitmap */ |
114 | #define __ETHTOOL_DECLARE_LINK_MODE_MASK(name) \ | |
115 | DECLARE_BITMAP(name, __ETHTOOL_LINK_MODE_MASK_NBITS) | |
116 | ||
117 | /* drivers must ignore base.cmd and base.link_mode_masks_nwords | |
118 | * fields, but they are allowed to overwrite them (will be ignored). | |
119 | */ | |
120 | struct ethtool_link_ksettings { | |
121 | struct ethtool_link_settings base; | |
122 | struct { | |
123 | __ETHTOOL_DECLARE_LINK_MODE_MASK(supported); | |
124 | __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising); | |
125 | __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising); | |
126 | } link_modes; | |
012ce4dd | 127 | u32 lanes; |
3f1ac7a7 DD |
128 | }; |
129 | ||
130 | /** | |
131 | * ethtool_link_ksettings_zero_link_mode - clear link_ksettings link mode mask | |
132 | * @ptr : pointer to struct ethtool_link_ksettings | |
133 | * @name : one of supported/advertising/lp_advertising | |
134 | */ | |
135 | #define ethtool_link_ksettings_zero_link_mode(ptr, name) \ | |
136 | bitmap_zero((ptr)->link_modes.name, __ETHTOOL_LINK_MODE_MASK_NBITS) | |
137 | ||
138 | /** | |
139 | * ethtool_link_ksettings_add_link_mode - set bit in link_ksettings | |
140 | * link mode mask | |
141 | * @ptr : pointer to struct ethtool_link_ksettings | |
142 | * @name : one of supported/advertising/lp_advertising | |
143 | * @mode : one of the ETHTOOL_LINK_MODE_*_BIT | |
144 | * (not atomic, no bound checking) | |
145 | */ | |
146 | #define ethtool_link_ksettings_add_link_mode(ptr, name, mode) \ | |
147 | __set_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name) | |
148 | ||
606c07f3 LT |
149 | /** |
150 | * ethtool_link_ksettings_del_link_mode - clear bit in link_ksettings | |
151 | * link mode mask | |
152 | * @ptr : pointer to struct ethtool_link_ksettings | |
153 | * @name : one of supported/advertising/lp_advertising | |
154 | * @mode : one of the ETHTOOL_LINK_MODE_*_BIT | |
155 | * (not atomic, no bound checking) | |
156 | */ | |
157 | #define ethtool_link_ksettings_del_link_mode(ptr, name, mode) \ | |
158 | __clear_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name) | |
159 | ||
3f1ac7a7 DD |
160 | /** |
161 | * ethtool_link_ksettings_test_link_mode - test bit in ksettings link mode mask | |
162 | * @ptr : pointer to struct ethtool_link_ksettings | |
163 | * @name : one of supported/advertising/lp_advertising | |
164 | * @mode : one of the ETHTOOL_LINK_MODE_*_BIT | |
165 | * (not atomic, no bound checking) | |
166 | * | |
167 | * Returns true/false. | |
168 | */ | |
169 | #define ethtool_link_ksettings_test_link_mode(ptr, name, mode) \ | |
170 | test_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name) | |
171 | ||
172 | extern int | |
173 | __ethtool_get_link_ksettings(struct net_device *dev, | |
174 | struct ethtool_link_ksettings *link_ksettings); | |
175 | ||
029ee6b1 YM |
176 | struct kernel_ethtool_coalesce { |
177 | u8 use_cqe_mode_tx; | |
178 | u8 use_cqe_mode_rx; | |
179 | }; | |
180 | ||
5a6cd6de AB |
181 | /** |
182 | * ethtool_intersect_link_masks - Given two link masks, AND them together | |
183 | * @dst: first mask and where result is stored | |
184 | * @src: second mask to intersect with | |
185 | * | |
186 | * Given two link mode masks, AND them together and save the result in dst. | |
187 | */ | |
188 | void ethtool_intersect_link_masks(struct ethtool_link_ksettings *dst, | |
189 | struct ethtool_link_ksettings *src); | |
190 | ||
6d62b4d5 PR |
191 | void ethtool_convert_legacy_u32_to_link_mode(unsigned long *dst, |
192 | u32 legacy_u32); | |
193 | ||
194 | /* return false if src had higher bits set. lower bits always updated. */ | |
195 | bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32, | |
196 | const unsigned long *src); | |
197 | ||
95cddcb5 JK |
198 | #define ETHTOOL_COALESCE_RX_USECS BIT(0) |
199 | #define ETHTOOL_COALESCE_RX_MAX_FRAMES BIT(1) | |
200 | #define ETHTOOL_COALESCE_RX_USECS_IRQ BIT(2) | |
201 | #define ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ BIT(3) | |
202 | #define ETHTOOL_COALESCE_TX_USECS BIT(4) | |
203 | #define ETHTOOL_COALESCE_TX_MAX_FRAMES BIT(5) | |
204 | #define ETHTOOL_COALESCE_TX_USECS_IRQ BIT(6) | |
205 | #define ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ BIT(7) | |
206 | #define ETHTOOL_COALESCE_STATS_BLOCK_USECS BIT(8) | |
207 | #define ETHTOOL_COALESCE_USE_ADAPTIVE_RX BIT(9) | |
208 | #define ETHTOOL_COALESCE_USE_ADAPTIVE_TX BIT(10) | |
209 | #define ETHTOOL_COALESCE_PKT_RATE_LOW BIT(11) | |
210 | #define ETHTOOL_COALESCE_RX_USECS_LOW BIT(12) | |
211 | #define ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW BIT(13) | |
212 | #define ETHTOOL_COALESCE_TX_USECS_LOW BIT(14) | |
213 | #define ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW BIT(15) | |
214 | #define ETHTOOL_COALESCE_PKT_RATE_HIGH BIT(16) | |
215 | #define ETHTOOL_COALESCE_RX_USECS_HIGH BIT(17) | |
216 | #define ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH BIT(18) | |
217 | #define ETHTOOL_COALESCE_TX_USECS_HIGH BIT(19) | |
218 | #define ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH BIT(20) | |
219 | #define ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL BIT(21) | |
029ee6b1 YM |
220 | #define ETHTOOL_COALESCE_USE_CQE_RX BIT(22) |
221 | #define ETHTOOL_COALESCE_USE_CQE_TX BIT(23) | |
222 | #define ETHTOOL_COALESCE_ALL_PARAMS GENMASK(23, 0) | |
95cddcb5 JK |
223 | |
224 | #define ETHTOOL_COALESCE_USECS \ | |
225 | (ETHTOOL_COALESCE_RX_USECS | ETHTOOL_COALESCE_TX_USECS) | |
226 | #define ETHTOOL_COALESCE_MAX_FRAMES \ | |
227 | (ETHTOOL_COALESCE_RX_MAX_FRAMES | ETHTOOL_COALESCE_TX_MAX_FRAMES) | |
228 | #define ETHTOOL_COALESCE_USECS_IRQ \ | |
229 | (ETHTOOL_COALESCE_RX_USECS_IRQ | ETHTOOL_COALESCE_TX_USECS_IRQ) | |
230 | #define ETHTOOL_COALESCE_MAX_FRAMES_IRQ \ | |
231 | (ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ | \ | |
232 | ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ) | |
233 | #define ETHTOOL_COALESCE_USE_ADAPTIVE \ | |
234 | (ETHTOOL_COALESCE_USE_ADAPTIVE_RX | ETHTOOL_COALESCE_USE_ADAPTIVE_TX) | |
8213f6c9 JK |
235 | #define ETHTOOL_COALESCE_USECS_LOW_HIGH \ |
236 | (ETHTOOL_COALESCE_RX_USECS_LOW | ETHTOOL_COALESCE_TX_USECS_LOW | \ | |
237 | ETHTOOL_COALESCE_RX_USECS_HIGH | ETHTOOL_COALESCE_TX_USECS_HIGH) | |
4f9546d2 JK |
238 | #define ETHTOOL_COALESCE_MAX_FRAMES_LOW_HIGH \ |
239 | (ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW | \ | |
240 | ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW | \ | |
241 | ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH | \ | |
242 | ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH) | |
812df69b JK |
243 | #define ETHTOOL_COALESCE_PKT_RATE_RX_USECS \ |
244 | (ETHTOOL_COALESCE_USE_ADAPTIVE_RX | \ | |
245 | ETHTOOL_COALESCE_RX_USECS_LOW | ETHTOOL_COALESCE_RX_USECS_HIGH | \ | |
246 | ETHTOOL_COALESCE_PKT_RATE_LOW | ETHTOOL_COALESCE_PKT_RATE_HIGH | \ | |
247 | ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL) | |
029ee6b1 YM |
248 | #define ETHTOOL_COALESCE_USE_CQE \ |
249 | (ETHTOOL_COALESCE_USE_CQE_RX | ETHTOOL_COALESCE_USE_CQE_TX) | |
95cddcb5 | 250 | |
9a27a330 JK |
251 | #define ETHTOOL_STAT_NOT_SET (~0ULL) |
252 | ||
c5797f8a JK |
253 | static inline void ethtool_stats_init(u64 *stats, unsigned int n) |
254 | { | |
255 | while (n--) | |
256 | stats[n] = ETHTOOL_STAT_NOT_SET; | |
257 | } | |
258 | ||
ca224454 JK |
259 | /* Basic IEEE 802.3 MAC statistics (30.3.1.1.*), not otherwise exposed |
260 | * via a more targeted API. | |
261 | */ | |
262 | struct ethtool_eth_mac_stats { | |
263 | u64 FramesTransmittedOK; | |
264 | u64 SingleCollisionFrames; | |
265 | u64 MultipleCollisionFrames; | |
266 | u64 FramesReceivedOK; | |
267 | u64 FrameCheckSequenceErrors; | |
268 | u64 AlignmentErrors; | |
269 | u64 OctetsTransmittedOK; | |
270 | u64 FramesWithDeferredXmissions; | |
271 | u64 LateCollisions; | |
272 | u64 FramesAbortedDueToXSColls; | |
273 | u64 FramesLostDueToIntMACXmitError; | |
274 | u64 CarrierSenseErrors; | |
275 | u64 OctetsReceivedOK; | |
276 | u64 FramesLostDueToIntMACRcvError; | |
277 | u64 MulticastFramesXmittedOK; | |
278 | u64 BroadcastFramesXmittedOK; | |
279 | u64 FramesWithExcessiveDeferral; | |
280 | u64 MulticastFramesReceivedOK; | |
281 | u64 BroadcastFramesReceivedOK; | |
282 | u64 InRangeLengthErrors; | |
283 | u64 OutOfRangeLengthField; | |
284 | u64 FrameTooLongErrors; | |
285 | }; | |
286 | ||
f09ea6fb JK |
287 | /* Basic IEEE 802.3 PHY statistics (30.3.2.1.*), not otherwise exposed |
288 | * via a more targeted API. | |
289 | */ | |
290 | struct ethtool_eth_phy_stats { | |
291 | u64 SymbolErrorDuringCarrier; | |
292 | }; | |
293 | ||
bfad2b97 JK |
294 | /* Basic IEEE 802.3 MAC Ctrl statistics (30.3.3.*), not otherwise exposed |
295 | * via a more targeted API. | |
296 | */ | |
297 | struct ethtool_eth_ctrl_stats { | |
298 | u64 MACControlFramesTransmitted; | |
299 | u64 MACControlFramesReceived; | |
300 | u64 UnsupportedOpcodesReceived; | |
301 | }; | |
302 | ||
9a27a330 JK |
303 | /** |
304 | * struct ethtool_pause_stats - statistics for IEEE 802.3x pause frames | |
305 | * @tx_pause_frames: transmitted pause frame count. Reported to user space | |
306 | * as %ETHTOOL_A_PAUSE_STAT_TX_FRAMES. | |
307 | * | |
308 | * Equivalent to `30.3.4.2 aPAUSEMACCtrlFramesTransmitted` | |
309 | * from the standard. | |
310 | * | |
311 | * @rx_pause_frames: received pause frame count. Reported to user space | |
312 | * as %ETHTOOL_A_PAUSE_STAT_RX_FRAMES. Equivalent to: | |
313 | * | |
314 | * Equivalent to `30.3.4.3 aPAUSEMACCtrlFramesReceived` | |
315 | * from the standard. | |
316 | */ | |
317 | struct ethtool_pause_stats { | |
318 | u64 tx_pause_frames; | |
319 | u64 rx_pause_frames; | |
320 | }; | |
321 | ||
be85dbfe JK |
322 | #define ETHTOOL_MAX_LANES 8 |
323 | ||
324 | /** | |
325 | * struct ethtool_fec_stats - statistics for IEEE 802.3 FEC | |
326 | * @corrected_blocks: number of received blocks corrected by FEC | |
327 | * Reported to user space as %ETHTOOL_A_FEC_STAT_CORRECTED. | |
328 | * | |
329 | * Equivalent to `30.5.1.1.17 aFECCorrectedBlocks` from the standard. | |
330 | * | |
331 | * @uncorrectable_blocks: number of received blocks FEC was not able to correct | |
332 | * Reported to user space as %ETHTOOL_A_FEC_STAT_UNCORR. | |
333 | * | |
334 | * Equivalent to `30.5.1.1.18 aFECUncorrectableBlocks` from the standard. | |
335 | * | |
336 | * @corrected_bits: number of bits corrected by FEC | |
337 | * Similar to @corrected_blocks but counts individual bit changes, | |
338 | * not entire FEC data blocks. This is a non-standard statistic. | |
339 | * Reported to user space as %ETHTOOL_A_FEC_STAT_CORR_BITS. | |
340 | * | |
341 | * @lane: per-lane/PCS-instance counts as defined by the standard | |
342 | * @total: error counts for the entire port, for drivers incapable of reporting | |
343 | * per-lane stats | |
344 | * | |
345 | * Drivers should fill in either only total or per-lane statistics, core | |
346 | * will take care of adding lane values up to produce the total. | |
347 | */ | |
348 | struct ethtool_fec_stats { | |
349 | struct ethtool_fec_stat { | |
350 | u64 total; | |
351 | u64 lanes[ETHTOOL_MAX_LANES]; | |
352 | } corrected_blocks, uncorrectable_blocks, corrected_bits; | |
353 | }; | |
354 | ||
a8b06e9d JK |
355 | /** |
356 | * struct ethtool_rmon_hist_range - byte range for histogram statistics | |
357 | * @low: low bound of the bucket (inclusive) | |
358 | * @high: high bound of the bucket (inclusive) | |
359 | */ | |
360 | struct ethtool_rmon_hist_range { | |
361 | u16 low; | |
362 | u16 high; | |
363 | }; | |
364 | ||
365 | #define ETHTOOL_RMON_HIST_MAX 10 | |
366 | ||
367 | /** | |
368 | * struct ethtool_rmon_stats - selected RMON (RFC 2819) statistics | |
369 | * @undersize_pkts: Equivalent to `etherStatsUndersizePkts` from the RFC. | |
370 | * @oversize_pkts: Equivalent to `etherStatsOversizePkts` from the RFC. | |
371 | * @fragments: Equivalent to `etherStatsFragments` from the RFC. | |
372 | * @jabbers: Equivalent to `etherStatsJabbers` from the RFC. | |
373 | * @hist: Packet counter for packet length buckets (e.g. | |
374 | * `etherStatsPkts128to255Octets` from the RFC). | |
375 | * @hist_tx: Tx counters in similar form to @hist, not defined in the RFC. | |
376 | * | |
377 | * Selection of RMON (RFC 2819) statistics which are not exposed via different | |
378 | * APIs, primarily the packet-length-based counters. | |
379 | * Unfortunately different designs choose different buckets beyond | |
380 | * the 1024B mark (jumbo frame teritory), so the definition of the bucket | |
381 | * ranges is left to the driver. | |
382 | */ | |
383 | struct ethtool_rmon_stats { | |
384 | u64 undersize_pkts; | |
385 | u64 oversize_pkts; | |
386 | u64 fragments; | |
387 | u64 jabbers; | |
388 | ||
389 | u64 hist[ETHTOOL_RMON_HIST_MAX]; | |
390 | u64 hist_tx[ETHTOOL_RMON_HIST_MAX]; | |
391 | }; | |
392 | ||
c781ff12 VT |
393 | #define ETH_MODULE_EEPROM_PAGE_LEN 128 |
394 | #define ETH_MODULE_MAX_I2C_ADDRESS 0x7f | |
395 | ||
396 | /** | |
397 | * struct ethtool_module_eeprom - EEPROM dump from specified page | |
398 | * @offset: Offset within the specified EEPROM page to begin read, in bytes. | |
399 | * @length: Number of bytes to read. | |
400 | * @page: Page number to read from. | |
401 | * @bank: Page bank number to read from, if applicable by EEPROM spec. | |
402 | * @i2c_address: I2C address of a page. Value less than 0x7f expected. Most | |
403 | * EEPROMs use 0x50 or 0x51. | |
404 | * @data: Pointer to buffer with EEPROM data of @length size. | |
405 | * | |
406 | * This can be used to manage pages during EEPROM dump in ethtool and pass | |
407 | * required information to the driver. | |
408 | */ | |
409 | struct ethtool_module_eeprom { | |
b8c48be2 IS |
410 | u32 offset; |
411 | u32 length; | |
412 | u8 page; | |
413 | u8 bank; | |
414 | u8 i2c_address; | |
415 | u8 *data; | |
c781ff12 VT |
416 | }; |
417 | ||
1da177e4 | 418 | /** |
8717d07b | 419 | * struct ethtool_ops - optional netdev operations |
012ce4dd DR |
420 | * @cap_link_lanes_supported: indicates if the driver supports lanes |
421 | * parameter. | |
95cddcb5 | 422 | * @supported_coalesce_params: supported types of interrupt coalescing. |
8717d07b BH |
423 | * @get_drvinfo: Report driver/device information. Should only set the |
424 | * @driver, @version, @fw_version and @bus_info fields. If not | |
425 | * implemented, the @driver and @bus_info fields will be filled in | |
426 | * according to the netdev's parent device. | |
427 | * @get_regs_len: Get buffer length required for @get_regs | |
e20b5b61 BH |
428 | * @get_regs: Get device registers |
429 | * @get_wol: Report whether Wake-on-Lan is enabled | |
8717d07b BH |
430 | * @set_wol: Turn Wake-on-Lan on or off. Returns a negative error code |
431 | * or zero. | |
432 | * @get_msglevel: Report driver message level. This should be the value | |
433 | * of the @msg_enable field used by netif logging functions. | |
e20b5b61 | 434 | * @set_msglevel: Set driver message level |
8717d07b BH |
435 | * @nway_reset: Restart autonegotiation. Returns a negative error code |
436 | * or zero. | |
437 | * @get_link: Report whether physical link is up. Will only be called if | |
438 | * the netdev is up. Should usually be set to ethtool_op_get_link(), | |
439 | * which uses netif_carrier_ok(). | |
ecc31c60 AC |
440 | * @get_link_ext_state: Report link extended state. Should set link_ext_state and |
441 | * link_ext_substate (link_ext_substate of 0 means link_ext_substate is unknown, | |
442 | * do not attach ext_substate attribute to netlink message). If link_ext_state | |
443 | * and link_ext_substate are unknown, return -ENODATA. If not implemented, | |
444 | * link_ext_state and link_ext_substate will not be sent to userspace. | |
d9c65de0 JK |
445 | * @get_eeprom_len: Read range of EEPROM addresses for validation of |
446 | * @get_eeprom and @set_eeprom requests. | |
447 | * Returns 0 if device does not support EEPROM access. | |
e20b5b61 | 448 | * @get_eeprom: Read data from the device EEPROM. |
1da177e4 LT |
449 | * Should fill in the magic field. Don't need to check len for zero |
450 | * or wraparound. Fill in the data argument with the eeprom values | |
451 | * from offset to offset + len. Update len to the amount read. | |
452 | * Returns an error or zero. | |
e20b5b61 | 453 | * @set_eeprom: Write data to the device EEPROM. |
1da177e4 LT |
454 | * Should validate the magic field. Don't need to check len for zero |
455 | * or wraparound. Update len to the amount written. Returns an error | |
456 | * or zero. | |
8717d07b BH |
457 | * @get_coalesce: Get interrupt coalescing parameters. Returns a negative |
458 | * error code or zero. | |
95cddcb5 JK |
459 | * @set_coalesce: Set interrupt coalescing parameters. Supported coalescing |
460 | * types should be set in @supported_coalesce_params. | |
461 | * Returns a negative error code or zero. | |
e20b5b61 | 462 | * @get_ringparam: Report ring sizes |
8717d07b | 463 | * @set_ringparam: Set ring sizes. Returns a negative error code or zero. |
9a27a330 JK |
464 | * @get_pause_stats: Report pause frame statistics. Drivers must not zero |
465 | * statistics which they don't report. The stats structure is initialized | |
466 | * to ETHTOOL_STAT_NOT_SET indicating driver does not report statistics. | |
e20b5b61 | 467 | * @get_pauseparam: Report pause parameters |
8717d07b BH |
468 | * @set_pauseparam: Set pause parameters. Returns a negative error code |
469 | * or zero. | |
e20b5b61 BH |
470 | * @self_test: Run specified self-tests |
471 | * @get_strings: Return a set of strings that describe the requested objects | |
68f512f2 BH |
472 | * @set_phys_id: Identify the physical devices, e.g. by flashing an LED |
473 | * attached to it. The implementation may update the indicator | |
474 | * asynchronously or synchronously, but in either case it must return | |
475 | * quickly. It is initially called with the argument %ETHTOOL_ID_ACTIVE, | |
fce55922 AB |
476 | * and must either activate asynchronous updates and return zero, return |
477 | * a negative error or return a positive frequency for synchronous | |
478 | * indication (e.g. 1 for one on/off cycle per second). If it returns | |
479 | * a frequency then it will be called again at intervals with the | |
68f512f2 BH |
480 | * argument %ETHTOOL_ID_ON or %ETHTOOL_ID_OFF and should set the state of |
481 | * the indicator accordingly. Finally, it is called with the argument | |
482 | * %ETHTOOL_ID_INACTIVE and must deactivate the indicator. Returns a | |
483 | * negative error code or zero. | |
8717d07b BH |
484 | * @get_ethtool_stats: Return extended statistics about the device. |
485 | * This is only useful if the device maintains statistics not | |
486 | * included in &struct rtnl_link_stats64. | |
487 | * @begin: Function to be called before any other operation. Returns a | |
488 | * negative error code or zero. | |
489 | * @complete: Function to be called after any other operation except | |
490 | * @begin. Will be called even if the other operation failed. | |
8717d07b BH |
491 | * @get_priv_flags: Report driver-specific feature flags. |
492 | * @set_priv_flags: Set driver-specific feature flags. Returns a negative | |
493 | * error code or zero. | |
494 | * @get_sset_count: Get number of strings that @get_strings will write. | |
495 | * @get_rxnfc: Get RX flow classification rules. Returns a negative | |
496 | * error code or zero. | |
497 | * @set_rxnfc: Set RX flow classification rules. Returns a negative | |
498 | * error code or zero. | |
499 | * @flash_device: Write a firmware image to device's flash memory. | |
500 | * Returns a negative error code or zero. | |
501 | * @reset: Reset (part of) the device, as specified by a bitmask of | |
502 | * flags from &enum ethtool_reset_flags. Returns a negative | |
503 | * error code or zero. | |
3de0b592 VD |
504 | * @get_rxfh_key_size: Get the size of the RX flow hash key. |
505 | * Returns zero if not supported for this specific device. | |
7850f63f BH |
506 | * @get_rxfh_indir_size: Get the size of the RX flow hash indirection table. |
507 | * Returns zero if not supported for this specific device. | |
892311f6 EP |
508 | * @get_rxfh: Get the contents of the RX flow hash indirection table, hash key |
509 | * and/or hash function. | |
8717d07b | 510 | * Returns a negative error code or zero. |
892311f6 EP |
511 | * @set_rxfh: Set the contents of the RX flow hash indirection table, hash |
512 | * key, and/or hash function. Arguments which are set to %NULL or zero | |
513 | * will remain unchanged. | |
514 | * Returns a negative error code or zero. An error code must be returned | |
515 | * if at least one unsupported change was requested. | |
f4bcf14e MC |
516 | * @get_rxfh_context: Get the contents of the RX flow hash indirection table, |
517 | * hash key, and/or hash function assiciated to the given rss context. | |
518 | * Returns a negative error code or zero. | |
519 | * @set_rxfh_context: Create, remove and configure RSS contexts. Allows setting | |
520 | * the contents of the RX flow hash indirection table, hash key, and/or | |
521 | * hash function associated to the given context. Arguments which are set | |
522 | * to %NULL or zero will remain unchanged. | |
523 | * Returns a negative error code or zero. An error code must be returned | |
524 | * if at least one unsupported change was requested. | |
8b5933c3 | 525 | * @get_channels: Get number of channels. |
526 | * @set_channels: Set number of channels. Returns a negative error code or | |
527 | * zero. | |
29dd54b7 AC |
528 | * @get_dump_flag: Get dump flag indicating current dump length, version, |
529 | * and flag of the device. | |
530 | * @get_dump_data: Get dump data. | |
531 | * @set_dump: Set dump specific flags to the device. | |
c8f3a8c3 RC |
532 | * @get_ts_info: Get the time stamping and PTP hardware clock capabilities. |
533 | * Drivers supporting transmit time stamps in software should set this to | |
534 | * ethtool_op_get_ts_info(). | |
41c3cb6d SH |
535 | * @get_module_info: Get the size and type of the eeprom contained within |
536 | * a plug-in module. | |
537 | * @get_module_eeprom: Get the eeprom information from the plug-in module | |
80f12ecc YM |
538 | * @get_eee: Get Energy-Efficient (EEE) supported and status. |
539 | * @set_eee: Set EEE status (enable/disable) as well as LPI timers. | |
d9c65de0 JK |
540 | * @get_tunable: Read the value of a driver / device tunable. |
541 | * @set_tunable: Set the value of a driver / device tunable. | |
421797b1 KL |
542 | * @get_per_queue_coalesce: Get interrupt coalescing parameters per queue. |
543 | * It must check that the given queue number is valid. If neither a RX nor | |
544 | * a TX queue has this number, return -EINVAL. If only a RX queue or a TX | |
545 | * queue has this number, set the inapplicable fields to ~0 and return 0. | |
546 | * Returns a negative error code or zero. | |
f38d138a KL |
547 | * @set_per_queue_coalesce: Set interrupt coalescing parameters per queue. |
548 | * It must check that the given queue number is valid. If neither a RX nor | |
549 | * a TX queue has this number, return -EINVAL. If only a RX queue or a TX | |
95cddcb5 JK |
550 | * queue has this number, ignore the inapplicable fields. Supported |
551 | * coalescing types should be set in @supported_coalesce_params. | |
f38d138a | 552 | * Returns a negative error code or zero. |
9b300495 MK |
553 | * @get_link_ksettings: Get various device settings including Ethernet link |
554 | * settings. The %cmd and %link_mode_masks_nwords fields should be | |
555 | * ignored (use %__ETHTOOL_LINK_MODE_MASK_NBITS instead of the latter), | |
556 | * any change to them will be overwritten by kernel. Returns a negative | |
557 | * error code or zero. | |
558 | * @set_link_ksettings: Set various device settings including Ethernet link | |
559 | * settings. The %cmd and %link_mode_masks_nwords fields should be | |
560 | * ignored (use %__ETHTOOL_LINK_MODE_MASK_NBITS instead of the latter), | |
561 | * any change to them will be overwritten by kernel. Returns a negative | |
562 | * error code or zero. | |
be85dbfe JK |
563 | * @get_fec_stats: Report FEC statistics. |
564 | * Core will sum up per-lane stats to get the total. | |
565 | * Drivers must not zero statistics which they don't report. The stats | |
566 | * structure is initialized to ETHTOOL_STAT_NOT_SET indicating driver does | |
567 | * not report statistics. | |
d805c520 FF |
568 | * @get_fecparam: Get the network device Forward Error Correction parameters. |
569 | * @set_fecparam: Set the network device Forward Error Correction parameters. | |
99943382 FF |
570 | * @get_ethtool_phy_stats: Return extended statistics about the PHY device. |
571 | * This is only useful if the device maintains PHY statistics and | |
572 | * cannot use the standard PHY library helpers. | |
56f15e2c JK |
573 | * @get_phy_tunable: Read the value of a PHY tunable. |
574 | * @set_phy_tunable: Set the value of a PHY tunable. | |
c781ff12 VT |
575 | * @get_module_eeprom_by_page: Get a region of plug-in module EEPROM data from |
576 | * specified page. Returns a negative error code or the amount of bytes | |
577 | * read. | |
f09ea6fb | 578 | * @get_eth_phy_stats: Query some of the IEEE 802.3 PHY statistics. |
ca224454 | 579 | * @get_eth_mac_stats: Query some of the IEEE 802.3 MAC statistics. |
bfad2b97 | 580 | * @get_eth_ctrl_stats: Query some of the IEEE 802.3 MAC Ctrl statistics. |
a8b06e9d JK |
581 | * @get_rmon_stats: Query some of the RMON (RFC 2819) statistics. |
582 | * Set %ranges to a pointer to zero-terminated array of byte ranges. | |
8717d07b BH |
583 | * |
584 | * All operations are optional (i.e. the function pointer may be set | |
585 | * to %NULL) and callers must take this into account. Callers must | |
b4f79e5c | 586 | * hold the RTNL lock. |
8717d07b BH |
587 | * |
588 | * See the structures used by these operations for further documentation. | |
6e201c85 BH |
589 | * Note that for all operations using a structure ending with a zero- |
590 | * length array, the array is allocated separately in the kernel and | |
591 | * is passed to the driver as an additional parameter. | |
8717d07b BH |
592 | * |
593 | * See &struct net_device and &struct net_device_ops for documentation | |
594 | * of the generic netdev features interface. | |
1da177e4 LT |
595 | */ |
596 | struct ethtool_ops { | |
012ce4dd | 597 | u32 cap_link_lanes_supported:1; |
95cddcb5 | 598 | u32 supported_coalesce_params; |
1da177e4 LT |
599 | void (*get_drvinfo)(struct net_device *, struct ethtool_drvinfo *); |
600 | int (*get_regs_len)(struct net_device *); | |
601 | void (*get_regs)(struct net_device *, struct ethtool_regs *, void *); | |
602 | void (*get_wol)(struct net_device *, struct ethtool_wolinfo *); | |
603 | int (*set_wol)(struct net_device *, struct ethtool_wolinfo *); | |
604 | u32 (*get_msglevel)(struct net_device *); | |
605 | void (*set_msglevel)(struct net_device *, u32); | |
606 | int (*nway_reset)(struct net_device *); | |
607 | u32 (*get_link)(struct net_device *); | |
ecc31c60 AC |
608 | int (*get_link_ext_state)(struct net_device *, |
609 | struct ethtool_link_ext_state_info *); | |
1da177e4 | 610 | int (*get_eeprom_len)(struct net_device *); |
97f8aefb | 611 | int (*get_eeprom)(struct net_device *, |
612 | struct ethtool_eeprom *, u8 *); | |
613 | int (*set_eeprom)(struct net_device *, | |
614 | struct ethtool_eeprom *, u8 *); | |
f3ccfda1 YM |
615 | int (*get_coalesce)(struct net_device *, |
616 | struct ethtool_coalesce *, | |
617 | struct kernel_ethtool_coalesce *, | |
618 | struct netlink_ext_ack *); | |
619 | int (*set_coalesce)(struct net_device *, | |
620 | struct ethtool_coalesce *, | |
621 | struct kernel_ethtool_coalesce *, | |
622 | struct netlink_ext_ack *); | |
97f8aefb | 623 | void (*get_ringparam)(struct net_device *, |
624 | struct ethtool_ringparam *); | |
625 | int (*set_ringparam)(struct net_device *, | |
626 | struct ethtool_ringparam *); | |
9a27a330 JK |
627 | void (*get_pause_stats)(struct net_device *dev, |
628 | struct ethtool_pause_stats *pause_stats); | |
97f8aefb | 629 | void (*get_pauseparam)(struct net_device *, |
630 | struct ethtool_pauseparam*); | |
631 | int (*set_pauseparam)(struct net_device *, | |
632 | struct ethtool_pauseparam*); | |
1da177e4 LT |
633 | void (*self_test)(struct net_device *, struct ethtool_test *, u64 *); |
634 | void (*get_strings)(struct net_device *, u32 stringset, u8 *); | |
68f512f2 | 635 | int (*set_phys_id)(struct net_device *, enum ethtool_phys_id_state); |
97f8aefb | 636 | void (*get_ethtool_stats)(struct net_device *, |
637 | struct ethtool_stats *, u64 *); | |
1da177e4 LT |
638 | int (*begin)(struct net_device *); |
639 | void (*complete)(struct net_device *); | |
97f8aefb | 640 | u32 (*get_priv_flags)(struct net_device *); |
641 | int (*set_priv_flags)(struct net_device *, u32); | |
ff03d49f | 642 | int (*get_sset_count)(struct net_device *, int); |
97f8aefb | 643 | int (*get_rxnfc)(struct net_device *, |
815c7db5 | 644 | struct ethtool_rxnfc *, u32 *rule_locs); |
59089d8d | 645 | int (*set_rxnfc)(struct net_device *, struct ethtool_rxnfc *); |
97f8aefb | 646 | int (*flash_device)(struct net_device *, struct ethtool_flash *); |
d73d3a8c | 647 | int (*reset)(struct net_device *, u32 *); |
3de0b592 | 648 | u32 (*get_rxfh_key_size)(struct net_device *); |
7850f63f | 649 | u32 (*get_rxfh_indir_size)(struct net_device *); |
892311f6 EP |
650 | int (*get_rxfh)(struct net_device *, u32 *indir, u8 *key, |
651 | u8 *hfunc); | |
33cb0fa7 | 652 | int (*set_rxfh)(struct net_device *, const u32 *indir, |
892311f6 | 653 | const u8 *key, const u8 hfunc); |
84a1d9c4 EC |
654 | int (*get_rxfh_context)(struct net_device *, u32 *indir, u8 *key, |
655 | u8 *hfunc, u32 rss_context); | |
656 | int (*set_rxfh_context)(struct net_device *, const u32 *indir, | |
657 | const u8 *key, const u8 hfunc, | |
658 | u32 *rss_context, bool delete); | |
8b5933c3 | 659 | void (*get_channels)(struct net_device *, struct ethtool_channels *); |
660 | int (*set_channels)(struct net_device *, struct ethtool_channels *); | |
29dd54b7 AC |
661 | int (*get_dump_flag)(struct net_device *, struct ethtool_dump *); |
662 | int (*get_dump_data)(struct net_device *, | |
663 | struct ethtool_dump *, void *); | |
664 | int (*set_dump)(struct net_device *, struct ethtool_dump *); | |
c8f3a8c3 | 665 | int (*get_ts_info)(struct net_device *, struct ethtool_ts_info *); |
41c3cb6d SH |
666 | int (*get_module_info)(struct net_device *, |
667 | struct ethtool_modinfo *); | |
668 | int (*get_module_eeprom)(struct net_device *, | |
669 | struct ethtool_eeprom *, u8 *); | |
80f12ecc YM |
670 | int (*get_eee)(struct net_device *, struct ethtool_eee *); |
671 | int (*set_eee)(struct net_device *, struct ethtool_eee *); | |
f0db9b07 GV |
672 | int (*get_tunable)(struct net_device *, |
673 | const struct ethtool_tunable *, void *); | |
674 | int (*set_tunable)(struct net_device *, | |
675 | const struct ethtool_tunable *, const void *); | |
421797b1 KL |
676 | int (*get_per_queue_coalesce)(struct net_device *, u32, |
677 | struct ethtool_coalesce *); | |
f38d138a KL |
678 | int (*set_per_queue_coalesce)(struct net_device *, u32, |
679 | struct ethtool_coalesce *); | |
3f1ac7a7 DD |
680 | int (*get_link_ksettings)(struct net_device *, |
681 | struct ethtool_link_ksettings *); | |
682 | int (*set_link_ksettings)(struct net_device *, | |
683 | const struct ethtool_link_ksettings *); | |
be85dbfe JK |
684 | void (*get_fec_stats)(struct net_device *dev, |
685 | struct ethtool_fec_stats *fec_stats); | |
1a5f3da2 VSR |
686 | int (*get_fecparam)(struct net_device *, |
687 | struct ethtool_fecparam *); | |
688 | int (*set_fecparam)(struct net_device *, | |
689 | struct ethtool_fecparam *); | |
99943382 FF |
690 | void (*get_ethtool_phy_stats)(struct net_device *, |
691 | struct ethtool_stats *, u64 *); | |
c6db31ff IR |
692 | int (*get_phy_tunable)(struct net_device *, |
693 | const struct ethtool_tunable *, void *); | |
694 | int (*set_phy_tunable)(struct net_device *, | |
695 | const struct ethtool_tunable *, const void *); | |
c781ff12 VT |
696 | int (*get_module_eeprom_by_page)(struct net_device *dev, |
697 | const struct ethtool_module_eeprom *page, | |
698 | struct netlink_ext_ack *extack); | |
f09ea6fb JK |
699 | void (*get_eth_phy_stats)(struct net_device *dev, |
700 | struct ethtool_eth_phy_stats *phy_stats); | |
ca224454 JK |
701 | void (*get_eth_mac_stats)(struct net_device *dev, |
702 | struct ethtool_eth_mac_stats *mac_stats); | |
bfad2b97 JK |
703 | void (*get_eth_ctrl_stats)(struct net_device *dev, |
704 | struct ethtool_eth_ctrl_stats *ctrl_stats); | |
a8b06e9d JK |
705 | void (*get_rmon_stats)(struct net_device *dev, |
706 | struct ethtool_rmon_stats *rmon_stats, | |
707 | const struct ethtool_rmon_hist_range **ranges); | |
1da177e4 | 708 | }; |
eca4205f | 709 | |
9000edb7 JK |
710 | int ethtool_check_ops(const struct ethtool_ops *ops); |
711 | ||
eca4205f PNA |
712 | struct ethtool_rx_flow_rule { |
713 | struct flow_rule *rule; | |
5299a11a | 714 | unsigned long priv[]; |
eca4205f PNA |
715 | }; |
716 | ||
717 | struct ethtool_rx_flow_spec_input { | |
718 | const struct ethtool_rx_flow_spec *fs; | |
719 | u32 rss_ctx; | |
720 | }; | |
721 | ||
722 | struct ethtool_rx_flow_rule * | |
723 | ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input); | |
724 | void ethtool_rx_flow_rule_destroy(struct ethtool_rx_flow_rule *rule); | |
725 | ||
70ae1e12 CF |
726 | bool ethtool_virtdev_validate_cmd(const struct ethtool_link_ksettings *cmd); |
727 | int ethtool_virtdev_set_link_ksettings(struct net_device *dev, | |
728 | const struct ethtool_link_ksettings *cmd, | |
729 | u32 *dev_speed, u8 *dev_duplex); | |
730 | ||
4895d780 FF |
731 | struct phy_device; |
732 | struct phy_tdr_config; | |
733 | ||
734 | /** | |
735 | * struct ethtool_phy_ops - Optional PHY device options | |
bd36ed1c FF |
736 | * @get_sset_count: Get number of strings that @get_strings will write. |
737 | * @get_strings: Return a set of strings that describe the requested objects | |
738 | * @get_stats: Return extended statistics about the PHY device. | |
d9c65de0 JK |
739 | * @start_cable_test: Start a cable test |
740 | * @start_cable_test_tdr: Start a Time Domain Reflectometry cable test | |
4895d780 FF |
741 | * |
742 | * All operations are optional (i.e. the function pointer may be set to %NULL) | |
743 | * and callers must take this into account. Callers must hold the RTNL lock. | |
744 | */ | |
745 | struct ethtool_phy_ops { | |
bd36ed1c FF |
746 | int (*get_sset_count)(struct phy_device *dev); |
747 | int (*get_strings)(struct phy_device *dev, u8 *data); | |
748 | int (*get_stats)(struct phy_device *dev, | |
749 | struct ethtool_stats *stats, u64 *data); | |
4895d780 FF |
750 | int (*start_cable_test)(struct phy_device *phydev, |
751 | struct netlink_ext_ack *extack); | |
752 | int (*start_cable_test_tdr)(struct phy_device *phydev, | |
753 | struct netlink_ext_ack *extack, | |
754 | const struct phy_tdr_config *config); | |
755 | }; | |
756 | ||
757 | /** | |
758 | * ethtool_set_ethtool_phy_ops - Set the ethtool_phy_ops singleton | |
759 | * @ops: Ethtool PHY operations to set | |
760 | */ | |
761 | void ethtool_set_ethtool_phy_ops(const struct ethtool_phy_ops *ops); | |
70ae1e12 | 762 | |
8859a44e | 763 | /** |
a975d7d8 DR |
764 | * ethtool_params_from_link_mode - Derive link parameters from a given link mode |
765 | * @link_ksettings: Link parameters to be derived from the link mode | |
766 | * @link_mode: Link mode | |
767 | */ | |
768 | void | |
769 | ethtool_params_from_link_mode(struct ethtool_link_ksettings *link_ksettings, | |
770 | enum ethtool_link_mode_bit_indices link_mode); | |
8859a44e | 771 | |
c156174a YL |
772 | /** |
773 | * ethtool_get_phc_vclocks - Derive phc vclocks information, and caller | |
774 | * is responsible to free memory of vclock_index | |
775 | * @dev: pointer to net_device structure | |
776 | * @vclock_index: pointer to pointer of vclock index | |
777 | * | |
778 | * Return number of phc vclocks | |
779 | */ | |
780 | int ethtool_get_phc_vclocks(struct net_device *dev, int **vclock_index); | |
781 | ||
7888fe53 AD |
782 | /** |
783 | * ethtool_sprintf - Write formatted string to ethtool string data | |
784 | * @data: Pointer to start of string to update | |
785 | * @fmt: Format of string to write | |
786 | * | |
787 | * Write formatted string to data. Update data to point at start of | |
788 | * next string. | |
789 | */ | |
790 | extern __printf(2, 3) void ethtool_sprintf(u8 **data, const char *fmt, ...); | |
1da177e4 | 791 | #endif /* _LINUX_ETHTOOL_H */ |