1 /* SPDX-License-Identifier: GPL-2.0 */
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)
11 * Portions Copyright (C) Sun Microsystems 2008
12 */
13 #ifndef _LINUX_ETHTOOL_H
14 #define _LINUX_ETHTOOL_H
15
16 #include <linux/bitmap.h>
17 #include <linux/compat.h>
18 #include <linux/netlink.h>
19 #include <uapi/linux/ethtool.h>
20
21 struct compat_ethtool_rx_flow_spec {
22 u32 flow_type;
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;
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;
37 u32 rule_locs[];
38 };
39
40 #include <linux/rculist.h>
41
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
58 enum {
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 */
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 /**
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
76 */
77 struct kernel_ethtool_ringparam {
78 u32 rx_buf_len;
79 u8 tcp_data_split;
80 u8 tx_push;
81 u32 cqe_size;
82 };
83
84 /**
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
89 */
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),
94 };
95
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)
98
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)
102
103 #define ETH_RSS_HASH_UNKNOWN 0
104 #define ETH_RSS_HASH_NO_CHANGE 0
105
106 struct net_device;
107 struct netlink_ext_ack;
108
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);
112
113
114 /* Link extended state and substate. */
115 struct ethtool_link_ext_state_info {
116 enum ethtool_link_ext_state link_ext_state;
117 union {
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;
125 };
126 };
127
128 /**
129 * ethtool_rxfh_indir_default - get default value for RX flow hash indirection
130 * @index: Index in RX flow hash indirection table
131 * @n_rx_rings: Number of RX rings to use
132 *
133 * This function provides the default policy for RX flow hash indirection.
134 */
ethtool_rxfh_indir_default(u32 index,u32 n_rx_rings)135 static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings)
136 {
137 return index % n_rx_rings;
138 }
139
140 /* declare a link mode bitmap */
141 #define __ETHTOOL_DECLARE_LINK_MODE_MASK(name) \
142 DECLARE_BITMAP(name, __ETHTOOL_LINK_MODE_MASK_NBITS)
143
144 /* drivers must ignore base.cmd and base.link_mode_masks_nwords
145 * fields, but they are allowed to overwrite them (will be ignored).
146 */
147 struct ethtool_link_ksettings {
148 struct ethtool_link_settings base;
149 struct {
150 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
151 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising);
152 __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising);
153 } link_modes;
154 u32 lanes;
155 };
156
157 /**
158 * ethtool_link_ksettings_zero_link_mode - clear link_ksettings link mode mask
159 * @ptr : pointer to struct ethtool_link_ksettings
160 * @name : one of supported/advertising/lp_advertising
161 */
162 #define ethtool_link_ksettings_zero_link_mode(ptr, name) \
163 bitmap_zero((ptr)->link_modes.name, __ETHTOOL_LINK_MODE_MASK_NBITS)
164
165 /**
166 * ethtool_link_ksettings_add_link_mode - set bit in link_ksettings
167 * link mode mask
168 * @ptr : pointer to struct ethtool_link_ksettings
169 * @name : one of supported/advertising/lp_advertising
170 * @mode : one of the ETHTOOL_LINK_MODE_*_BIT
171 * (not atomic, no bound checking)
172 */
173 #define ethtool_link_ksettings_add_link_mode(ptr, name, mode) \
174 __set_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
175
176 /**
177 * ethtool_link_ksettings_del_link_mode - clear bit in link_ksettings
178 * link mode mask
179 * @ptr : pointer to struct ethtool_link_ksettings
180 * @name : one of supported/advertising/lp_advertising
181 * @mode : one of the ETHTOOL_LINK_MODE_*_BIT
182 * (not atomic, no bound checking)
183 */
184 #define ethtool_link_ksettings_del_link_mode(ptr, name, mode) \
185 __clear_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
186
187 /**
188 * ethtool_link_ksettings_test_link_mode - test bit in ksettings link mode mask
189 * @ptr : pointer to struct ethtool_link_ksettings
190 * @name : one of supported/advertising/lp_advertising
191 * @mode : one of the ETHTOOL_LINK_MODE_*_BIT
192 * (not atomic, no bound checking)
193 *
194 * Returns true/false.
195 */
196 #define ethtool_link_ksettings_test_link_mode(ptr, name, mode) \
197 test_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name)
198
199 extern int
200 __ethtool_get_link_ksettings(struct net_device *dev,
201 struct ethtool_link_ksettings *link_ksettings);
202
203 struct kernel_ethtool_coalesce {
204 u8 use_cqe_mode_tx;
205 u8 use_cqe_mode_rx;
206 };
207
208 /**
209 * ethtool_intersect_link_masks - Given two link masks, AND them together
210 * @dst: first mask and where result is stored
211 * @src: second mask to intersect with
212 *
213 * Given two link mode masks, AND them together and save the result in dst.
214 */
215 void ethtool_intersect_link_masks(struct ethtool_link_ksettings *dst,
216 struct ethtool_link_ksettings *src);
217
218 void ethtool_convert_legacy_u32_to_link_mode(unsigned long *dst,
219 u32 legacy_u32);
220
221 /* return false if src had higher bits set. lower bits always updated. */
222 bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32,
223 const unsigned long *src);
224
225 #define ETHTOOL_COALESCE_RX_USECS BIT(0)
226 #define ETHTOOL_COALESCE_RX_MAX_FRAMES BIT(1)
227 #define ETHTOOL_COALESCE_RX_USECS_IRQ BIT(2)
228 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ BIT(3)
229 #define ETHTOOL_COALESCE_TX_USECS BIT(4)
230 #define ETHTOOL_COALESCE_TX_MAX_FRAMES BIT(5)
231 #define ETHTOOL_COALESCE_TX_USECS_IRQ BIT(6)
232 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ BIT(7)
233 #define ETHTOOL_COALESCE_STATS_BLOCK_USECS BIT(8)
234 #define ETHTOOL_COALESCE_USE_ADAPTIVE_RX BIT(9)
235 #define ETHTOOL_COALESCE_USE_ADAPTIVE_TX BIT(10)
236 #define ETHTOOL_COALESCE_PKT_RATE_LOW BIT(11)
237 #define ETHTOOL_COALESCE_RX_USECS_LOW BIT(12)
238 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW BIT(13)
239 #define ETHTOOL_COALESCE_TX_USECS_LOW BIT(14)
240 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW BIT(15)
241 #define ETHTOOL_COALESCE_PKT_RATE_HIGH BIT(16)
242 #define ETHTOOL_COALESCE_RX_USECS_HIGH BIT(17)
243 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH BIT(18)
244 #define ETHTOOL_COALESCE_TX_USECS_HIGH BIT(19)
245 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH BIT(20)
246 #define ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL BIT(21)
247 #define ETHTOOL_COALESCE_USE_CQE_RX BIT(22)
248 #define ETHTOOL_COALESCE_USE_CQE_TX BIT(23)
249 #define ETHTOOL_COALESCE_ALL_PARAMS GENMASK(23, 0)
250
251 #define ETHTOOL_COALESCE_USECS \
252 (ETHTOOL_COALESCE_RX_USECS | ETHTOOL_COALESCE_TX_USECS)
253 #define ETHTOOL_COALESCE_MAX_FRAMES \
254 (ETHTOOL_COALESCE_RX_MAX_FRAMES | ETHTOOL_COALESCE_TX_MAX_FRAMES)
255 #define ETHTOOL_COALESCE_USECS_IRQ \
256 (ETHTOOL_COALESCE_RX_USECS_IRQ | ETHTOOL_COALESCE_TX_USECS_IRQ)
257 #define ETHTOOL_COALESCE_MAX_FRAMES_IRQ \
258 (ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ | \
259 ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ)
260 #define ETHTOOL_COALESCE_USE_ADAPTIVE \
261 (ETHTOOL_COALESCE_USE_ADAPTIVE_RX | ETHTOOL_COALESCE_USE_ADAPTIVE_TX)
262 #define ETHTOOL_COALESCE_USECS_LOW_HIGH \
263 (ETHTOOL_COALESCE_RX_USECS_LOW | ETHTOOL_COALESCE_TX_USECS_LOW | \
264 ETHTOOL_COALESCE_RX_USECS_HIGH | ETHTOOL_COALESCE_TX_USECS_HIGH)
265 #define ETHTOOL_COALESCE_MAX_FRAMES_LOW_HIGH \
266 (ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW | \
267 ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW | \
268 ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH | \
269 ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH)
270 #define ETHTOOL_COALESCE_PKT_RATE_RX_USECS \
271 (ETHTOOL_COALESCE_USE_ADAPTIVE_RX | \
272 ETHTOOL_COALESCE_RX_USECS_LOW | ETHTOOL_COALESCE_RX_USECS_HIGH | \
273 ETHTOOL_COALESCE_PKT_RATE_LOW | ETHTOOL_COALESCE_PKT_RATE_HIGH | \
274 ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL)
275 #define ETHTOOL_COALESCE_USE_CQE \
276 (ETHTOOL_COALESCE_USE_CQE_RX | ETHTOOL_COALESCE_USE_CQE_TX)
277
278 #define ETHTOOL_STAT_NOT_SET (~0ULL)
279
ethtool_stats_init(u64 * stats,unsigned int n)280 static inline void ethtool_stats_init(u64 *stats, unsigned int n)
281 {
282 while (n--)
283 stats[n] = ETHTOOL_STAT_NOT_SET;
284 }
285
286 /* Basic IEEE 802.3 MAC statistics (30.3.1.1.*), not otherwise exposed
287 * via a more targeted API.
288 */
289 struct ethtool_eth_mac_stats {
290 u64 FramesTransmittedOK;
291 u64 SingleCollisionFrames;
292 u64 MultipleCollisionFrames;
293 u64 FramesReceivedOK;
294 u64 FrameCheckSequenceErrors;
295 u64 AlignmentErrors;
296 u64 OctetsTransmittedOK;
297 u64 FramesWithDeferredXmissions;
298 u64 LateCollisions;
299 u64 FramesAbortedDueToXSColls;
300 u64 FramesLostDueToIntMACXmitError;
301 u64 CarrierSenseErrors;
302 u64 OctetsReceivedOK;
303 u64 FramesLostDueToIntMACRcvError;
304 u64 MulticastFramesXmittedOK;
305 u64 BroadcastFramesXmittedOK;
306 u64 FramesWithExcessiveDeferral;
307 u64 MulticastFramesReceivedOK;
308 u64 BroadcastFramesReceivedOK;
309 u64 InRangeLengthErrors;
310 u64 OutOfRangeLengthField;
311 u64 FrameTooLongErrors;
312 };
313
314 /* Basic IEEE 802.3 PHY statistics (30.3.2.1.*), not otherwise exposed
315 * via a more targeted API.
316 */
317 struct ethtool_eth_phy_stats {
318 u64 SymbolErrorDuringCarrier;
319 };
320
321 /* Basic IEEE 802.3 MAC Ctrl statistics (30.3.3.*), not otherwise exposed
322 * via a more targeted API.
323 */
324 struct ethtool_eth_ctrl_stats {
325 u64 MACControlFramesTransmitted;
326 u64 MACControlFramesReceived;
327 u64 UnsupportedOpcodesReceived;
328 };
329
330 /**
331 * struct ethtool_pause_stats - statistics for IEEE 802.3x pause frames
332 * @tx_pause_frames: transmitted pause frame count. Reported to user space
333 * as %ETHTOOL_A_PAUSE_STAT_TX_FRAMES.
334 *
335 * Equivalent to `30.3.4.2 aPAUSEMACCtrlFramesTransmitted`
336 * from the standard.
337 *
338 * @rx_pause_frames: received pause frame count. Reported to user space
339 * as %ETHTOOL_A_PAUSE_STAT_RX_FRAMES. Equivalent to:
340 *
341 * Equivalent to `30.3.4.3 aPAUSEMACCtrlFramesReceived`
342 * from the standard.
343 */
344 struct ethtool_pause_stats {
345 u64 tx_pause_frames;
346 u64 rx_pause_frames;
347 };
348
349 #define ETHTOOL_MAX_LANES 8
350
351 /**
352 * struct ethtool_fec_stats - statistics for IEEE 802.3 FEC
353 * @corrected_blocks: number of received blocks corrected by FEC
354 * Reported to user space as %ETHTOOL_A_FEC_STAT_CORRECTED.
355 *
356 * Equivalent to `30.5.1.1.17 aFECCorrectedBlocks` from the standard.
357 *
358 * @uncorrectable_blocks: number of received blocks FEC was not able to correct
359 * Reported to user space as %ETHTOOL_A_FEC_STAT_UNCORR.
360 *
361 * Equivalent to `30.5.1.1.18 aFECUncorrectableBlocks` from the standard.
362 *
363 * @corrected_bits: number of bits corrected by FEC
364 * Similar to @corrected_blocks but counts individual bit changes,
365 * not entire FEC data blocks. This is a non-standard statistic.
366 * Reported to user space as %ETHTOOL_A_FEC_STAT_CORR_BITS.
367 *
368 * @lane: per-lane/PCS-instance counts as defined by the standard
369 * @total: error counts for the entire port, for drivers incapable of reporting
370 * per-lane stats
371 *
372 * Drivers should fill in either only total or per-lane statistics, core
373 * will take care of adding lane values up to produce the total.
374 */
375 struct ethtool_fec_stats {
376 struct ethtool_fec_stat {
377 u64 total;
378 u64 lanes[ETHTOOL_MAX_LANES];
379 } corrected_blocks, uncorrectable_blocks, corrected_bits;
380 };
381
382 /**
383 * struct ethtool_rmon_hist_range - byte range for histogram statistics
384 * @low: low bound of the bucket (inclusive)
385 * @high: high bound of the bucket (inclusive)
386 */
387 struct ethtool_rmon_hist_range {
388 u16 low;
389 u16 high;
390 };
391
392 #define ETHTOOL_RMON_HIST_MAX 10
393
394 /**
395 * struct ethtool_rmon_stats - selected RMON (RFC 2819) statistics
396 * @undersize_pkts: Equivalent to `etherStatsUndersizePkts` from the RFC.
397 * @oversize_pkts: Equivalent to `etherStatsOversizePkts` from the RFC.
398 * @fragments: Equivalent to `etherStatsFragments` from the RFC.
399 * @jabbers: Equivalent to `etherStatsJabbers` from the RFC.
400 * @hist: Packet counter for packet length buckets (e.g.
401 * `etherStatsPkts128to255Octets` from the RFC).
402 * @hist_tx: Tx counters in similar form to @hist, not defined in the RFC.
403 *
404 * Selection of RMON (RFC 2819) statistics which are not exposed via different
405 * APIs, primarily the packet-length-based counters.
406 * Unfortunately different designs choose different buckets beyond
407 * the 1024B mark (jumbo frame teritory), so the definition of the bucket
408 * ranges is left to the driver.
409 */
410 struct ethtool_rmon_stats {
411 u64 undersize_pkts;
412 u64 oversize_pkts;
413 u64 fragments;
414 u64 jabbers;
415
416 u64 hist[ETHTOOL_RMON_HIST_MAX];
417 u64 hist_tx[ETHTOOL_RMON_HIST_MAX];
418 };
419
420 #define ETH_MODULE_EEPROM_PAGE_LEN 128
421 #define ETH_MODULE_MAX_I2C_ADDRESS 0x7f
422
423 /**
424 * struct ethtool_module_eeprom - EEPROM dump from specified page
425 * @offset: Offset within the specified EEPROM page to begin read, in bytes.
426 * @length: Number of bytes to read.
427 * @page: Page number to read from.
428 * @bank: Page bank number to read from, if applicable by EEPROM spec.
429 * @i2c_address: I2C address of a page. Value less than 0x7f expected. Most
430 * EEPROMs use 0x50 or 0x51.
431 * @data: Pointer to buffer with EEPROM data of @length size.
432 *
433 * This can be used to manage pages during EEPROM dump in ethtool and pass
434 * required information to the driver.
435 */
436 struct ethtool_module_eeprom {
437 u32 offset;
438 u32 length;
439 u8 page;
440 u8 bank;
441 u8 i2c_address;
442 u8 *data;
443 };
444
445 /**
446 * struct ethtool_module_power_mode_params - module power mode parameters
447 * @policy: The power mode policy enforced by the host for the plug-in module.
448 * @mode: The operational power mode of the plug-in module. Should be filled by
449 * device drivers on get operations.
450 */
451 struct ethtool_module_power_mode_params {
452 enum ethtool_module_power_mode_policy policy;
453 enum ethtool_module_power_mode mode;
454 };
455
456 /**
457 * struct ethtool_ops - optional netdev operations
458 * @cap_link_lanes_supported: indicates if the driver supports lanes
459 * parameter.
460 * @supported_coalesce_params: supported types of interrupt coalescing.
461 * @supported_ring_params: supported ring params.
462 * @get_drvinfo: Report driver/device information. Should only set the
463 * @driver, @version, @fw_version and @bus_info fields. If not
464 * implemented, the @driver and @bus_info fields will be filled in
465 * according to the netdev's parent device.
466 * @get_regs_len: Get buffer length required for @get_regs
467 * @get_regs: Get device registers
468 * @get_wol: Report whether Wake-on-Lan is enabled
469 * @set_wol: Turn Wake-on-Lan on or off. Returns a negative error code
470 * or zero.
471 * @get_msglevel: Report driver message level. This should be the value
472 * of the @msg_enable field used by netif logging functions.
473 * @set_msglevel: Set driver message level
474 * @nway_reset: Restart autonegotiation. Returns a negative error code
475 * or zero.
476 * @get_link: Report whether physical link is up. Will only be called if
477 * the netdev is up. Should usually be set to ethtool_op_get_link(),
478 * which uses netif_carrier_ok().
479 * @get_link_ext_state: Report link extended state. Should set link_ext_state and
480 * link_ext_substate (link_ext_substate of 0 means link_ext_substate is unknown,
481 * do not attach ext_substate attribute to netlink message). If link_ext_state
482 * and link_ext_substate are unknown, return -ENODATA. If not implemented,
483 * link_ext_state and link_ext_substate will not be sent to userspace.
484 * @get_eeprom_len: Read range of EEPROM addresses for validation of
485 * @get_eeprom and @set_eeprom requests.
486 * Returns 0 if device does not support EEPROM access.
487 * @get_eeprom: Read data from the device EEPROM.
488 * Should fill in the magic field. Don't need to check len for zero
489 * or wraparound. Fill in the data argument with the eeprom values
490 * from offset to offset + len. Update len to the amount read.
491 * Returns an error or zero.
492 * @set_eeprom: Write data to the device EEPROM.
493 * Should validate the magic field. Don't need to check len for zero
494 * or wraparound. Update len to the amount written. Returns an error
495 * or zero.
496 * @get_coalesce: Get interrupt coalescing parameters. Returns a negative
497 * error code or zero.
498 * @set_coalesce: Set interrupt coalescing parameters. Supported coalescing
499 * types should be set in @supported_coalesce_params.
500 * Returns a negative error code or zero.
501 * @get_ringparam: Report ring sizes
502 * @set_ringparam: Set ring sizes. Returns a negative error code or zero.
503 * @get_pause_stats: Report pause frame statistics. Drivers must not zero
504 * statistics which they don't report. The stats structure is initialized
505 * to ETHTOOL_STAT_NOT_SET indicating driver does not report statistics.
506 * @get_pauseparam: Report pause parameters
507 * @set_pauseparam: Set pause parameters. Returns a negative error code
508 * or zero.
509 * @self_test: Run specified self-tests
510 * @get_strings: Return a set of strings that describe the requested objects
511 * @set_phys_id: Identify the physical devices, e.g. by flashing an LED
512 * attached to it. The implementation may update the indicator
513 * asynchronously or synchronously, but in either case it must return
514 * quickly. It is initially called with the argument %ETHTOOL_ID_ACTIVE,
515 * and must either activate asynchronous updates and return zero, return
516 * a negative error or return a positive frequency for synchronous
517 * indication (e.g. 1 for one on/off cycle per second). If it returns
518 * a frequency then it will be called again at intervals with the
519 * argument %ETHTOOL_ID_ON or %ETHTOOL_ID_OFF and should set the state of
520 * the indicator accordingly. Finally, it is called with the argument
521 * %ETHTOOL_ID_INACTIVE and must deactivate the indicator. Returns a
522 * negative error code or zero.
523 * @get_ethtool_stats: Return extended statistics about the device.
524 * This is only useful if the device maintains statistics not
525 * included in &struct rtnl_link_stats64.
526 * @begin: Function to be called before any other operation. Returns a
527 * negative error code or zero.
528 * @complete: Function to be called after any other operation except
529 * @begin. Will be called even if the other operation failed.
530 * @get_priv_flags: Report driver-specific feature flags.
531 * @set_priv_flags: Set driver-specific feature flags. Returns a negative
532 * error code or zero.
533 * @get_sset_count: Get number of strings that @get_strings will write.
534 * @get_rxnfc: Get RX flow classification rules. Returns a negative
535 * error code or zero.
536 * @set_rxnfc: Set RX flow classification rules. Returns a negative
537 * error code or zero.
538 * @flash_device: Write a firmware image to device's flash memory.
539 * Returns a negative error code or zero.
540 * @reset: Reset (part of) the device, as specified by a bitmask of
541 * flags from &enum ethtool_reset_flags. Returns a negative
542 * error code or zero.
543 * @get_rxfh_key_size: Get the size of the RX flow hash key.
544 * Returns zero if not supported for this specific device.
545 * @get_rxfh_indir_size: Get the size of the RX flow hash indirection table.
546 * Returns zero if not supported for this specific device.
547 * @get_rxfh: Get the contents of the RX flow hash indirection table, hash key
548 * and/or hash function.
549 * Returns a negative error code or zero.
550 * @set_rxfh: Set the contents of the RX flow hash indirection table, hash
551 * key, and/or hash function. Arguments which are set to %NULL or zero
552 * will remain unchanged.
553 * Returns a negative error code or zero. An error code must be returned
554 * if at least one unsupported change was requested.
555 * @get_rxfh_context: Get the contents of the RX flow hash indirection table,
556 * hash key, and/or hash function assiciated to the given rss context.
557 * Returns a negative error code or zero.
558 * @set_rxfh_context: Create, remove and configure RSS contexts. Allows setting
559 * the contents of the RX flow hash indirection table, hash key, and/or
560 * hash function associated to the given context. Arguments which are set
561 * to %NULL or zero will remain unchanged.
562 * Returns a negative error code or zero. An error code must be returned
563 * if at least one unsupported change was requested.
564 * @get_channels: Get number of channels.
565 * @set_channels: Set number of channels. Returns a negative error code or
566 * zero.
567 * @get_dump_flag: Get dump flag indicating current dump length, version,
568 * and flag of the device.
569 * @get_dump_data: Get dump data.
570 * @set_dump: Set dump specific flags to the device.
571 * @get_ts_info: Get the time stamping and PTP hardware clock capabilities.
572 * Drivers supporting transmit time stamps in software should set this to
573 * ethtool_op_get_ts_info().
574 * @get_module_info: Get the size and type of the eeprom contained within
575 * a plug-in module.
576 * @get_module_eeprom: Get the eeprom information from the plug-in module
577 * @get_eee: Get Energy-Efficient (EEE) supported and status.
578 * @set_eee: Set EEE status (enable/disable) as well as LPI timers.
579 * @get_tunable: Read the value of a driver / device tunable.
580 * @set_tunable: Set the value of a driver / device tunable.
581 * @get_per_queue_coalesce: Get interrupt coalescing parameters per queue.
582 * It must check that the given queue number is valid. If neither a RX nor
583 * a TX queue has this number, return -EINVAL. If only a RX queue or a TX
584 * queue has this number, set the inapplicable fields to ~0 and return 0.
585 * Returns a negative error code or zero.
586 * @set_per_queue_coalesce: Set interrupt coalescing parameters per queue.
587 * It must check that the given queue number is valid. If neither a RX nor
588 * a TX queue has this number, return -EINVAL. If only a RX queue or a TX
589 * queue has this number, ignore the inapplicable fields. Supported
590 * coalescing types should be set in @supported_coalesce_params.
591 * Returns a negative error code or zero.
592 * @get_link_ksettings: Get various device settings including Ethernet link
593 * settings. The %cmd and %link_mode_masks_nwords fields should be
594 * ignored (use %__ETHTOOL_LINK_MODE_MASK_NBITS instead of the latter),
595 * any change to them will be overwritten by kernel. Returns a negative
596 * error code or zero.
597 * @set_link_ksettings: Set various device settings including Ethernet link
598 * settings. The %cmd and %link_mode_masks_nwords fields should be
599 * ignored (use %__ETHTOOL_LINK_MODE_MASK_NBITS instead of the latter),
600 * any change to them will be overwritten by kernel. Returns a negative
601 * error code or zero.
602 * @get_fec_stats: Report FEC statistics.
603 * Core will sum up per-lane stats to get the total.
604 * Drivers must not zero statistics which they don't report. The stats
605 * structure is initialized to ETHTOOL_STAT_NOT_SET indicating driver does
606 * not report statistics.
607 * @get_fecparam: Get the network device Forward Error Correction parameters.
608 * @set_fecparam: Set the network device Forward Error Correction parameters.
609 * @get_ethtool_phy_stats: Return extended statistics about the PHY device.
610 * This is only useful if the device maintains PHY statistics and
611 * cannot use the standard PHY library helpers.
612 * @get_phy_tunable: Read the value of a PHY tunable.
613 * @set_phy_tunable: Set the value of a PHY tunable.
614 * @get_module_eeprom_by_page: Get a region of plug-in module EEPROM data from
615 * specified page. Returns a negative error code or the amount of bytes
616 * read.
617 * @get_eth_phy_stats: Query some of the IEEE 802.3 PHY statistics.
618 * @get_eth_mac_stats: Query some of the IEEE 802.3 MAC statistics.
619 * @get_eth_ctrl_stats: Query some of the IEEE 802.3 MAC Ctrl statistics.
620 * @get_rmon_stats: Query some of the RMON (RFC 2819) statistics.
621 * Set %ranges to a pointer to zero-terminated array of byte ranges.
622 * @get_module_power_mode: Get the power mode policy for the plug-in module
623 * used by the network device and its operational power mode, if
624 * plugged-in.
625 * @set_module_power_mode: Set the power mode policy for the plug-in module
626 * used by the network device.
627 *
628 * All operations are optional (i.e. the function pointer may be set
629 * to %NULL) and callers must take this into account. Callers must
630 * hold the RTNL lock.
631 *
632 * See the structures used by these operations for further documentation.
633 * Note that for all operations using a structure ending with a zero-
634 * length array, the array is allocated separately in the kernel and
635 * is passed to the driver as an additional parameter.
636 *
637 * See &struct net_device and &struct net_device_ops for documentation
638 * of the generic netdev features interface.
639 */
640 struct ethtool_ops {
641 u32 cap_link_lanes_supported:1;
642 u32 supported_coalesce_params;
643 u32 supported_ring_params;
644 void (*get_drvinfo)(struct net_device *, struct ethtool_drvinfo *);
645 int (*get_regs_len)(struct net_device *);
646 void (*get_regs)(struct net_device *, struct ethtool_regs *, void *);
647 void (*get_wol)(struct net_device *, struct ethtool_wolinfo *);
648 int (*set_wol)(struct net_device *, struct ethtool_wolinfo *);
649 u32 (*get_msglevel)(struct net_device *);
650 void (*set_msglevel)(struct net_device *, u32);
651 int (*nway_reset)(struct net_device *);
652 u32 (*get_link)(struct net_device *);
653 int (*get_link_ext_state)(struct net_device *,
654 struct ethtool_link_ext_state_info *);
655 int (*get_eeprom_len)(struct net_device *);
656 int (*get_eeprom)(struct net_device *,
657 struct ethtool_eeprom *, u8 *);
658 int (*set_eeprom)(struct net_device *,
659 struct ethtool_eeprom *, u8 *);
660 int (*get_coalesce)(struct net_device *,
661 struct ethtool_coalesce *,
662 struct kernel_ethtool_coalesce *,
663 struct netlink_ext_ack *);
664 int (*set_coalesce)(struct net_device *,
665 struct ethtool_coalesce *,
666 struct kernel_ethtool_coalesce *,
667 struct netlink_ext_ack *);
668 void (*get_ringparam)(struct net_device *,
669 struct ethtool_ringparam *,
670 struct kernel_ethtool_ringparam *,
671 struct netlink_ext_ack *);
672 int (*set_ringparam)(struct net_device *,
673 struct ethtool_ringparam *,
674 struct kernel_ethtool_ringparam *,
675 struct netlink_ext_ack *);
676 void (*get_pause_stats)(struct net_device *dev,
677 struct ethtool_pause_stats *pause_stats);
678 void (*get_pauseparam)(struct net_device *,
679 struct ethtool_pauseparam*);
680 int (*set_pauseparam)(struct net_device *,
681 struct ethtool_pauseparam*);
682 void (*self_test)(struct net_device *, struct ethtool_test *, u64 *);
683 void (*get_strings)(struct net_device *, u32 stringset, u8 *);
684 int (*set_phys_id)(struct net_device *, enum ethtool_phys_id_state);
685 void (*get_ethtool_stats)(struct net_device *,
686 struct ethtool_stats *, u64 *);
687 int (*begin)(struct net_device *);
688 void (*complete)(struct net_device *);
689 u32 (*get_priv_flags)(struct net_device *);
690 int (*set_priv_flags)(struct net_device *, u32);
691 int (*get_sset_count)(struct net_device *, int);
692 int (*get_rxnfc)(struct net_device *,
693 struct ethtool_rxnfc *, u32 *rule_locs);
694 int (*set_rxnfc)(struct net_device *, struct ethtool_rxnfc *);
695 int (*flash_device)(struct net_device *, struct ethtool_flash *);
696 int (*reset)(struct net_device *, u32 *);
697 u32 (*get_rxfh_key_size)(struct net_device *);
698 u32 (*get_rxfh_indir_size)(struct net_device *);
699 int (*get_rxfh)(struct net_device *, u32 *indir, u8 *key,
700 u8 *hfunc);
701 int (*set_rxfh)(struct net_device *, const u32 *indir,
702 const u8 *key, const u8 hfunc);
703 int (*get_rxfh_context)(struct net_device *, u32 *indir, u8 *key,
704 u8 *hfunc, u32 rss_context);
705 int (*set_rxfh_context)(struct net_device *, const u32 *indir,
706 const u8 *key, const u8 hfunc,
707 u32 *rss_context, bool delete);
708 void (*get_channels)(struct net_device *, struct ethtool_channels *);
709 int (*set_channels)(struct net_device *, struct ethtool_channels *);
710 int (*get_dump_flag)(struct net_device *, struct ethtool_dump *);
711 int (*get_dump_data)(struct net_device *,
712 struct ethtool_dump *, void *);
713 int (*set_dump)(struct net_device *, struct ethtool_dump *);
714 int (*get_ts_info)(struct net_device *, struct ethtool_ts_info *);
715 int (*get_module_info)(struct net_device *,
716 struct ethtool_modinfo *);
717 int (*get_module_eeprom)(struct net_device *,
718 struct ethtool_eeprom *, u8 *);
719 int (*get_eee)(struct net_device *, struct ethtool_eee *);
720 int (*set_eee)(struct net_device *, struct ethtool_eee *);
721 int (*get_tunable)(struct net_device *,
722 const struct ethtool_tunable *, void *);
723 int (*set_tunable)(struct net_device *,
724 const struct ethtool_tunable *, const void *);
725 int (*get_per_queue_coalesce)(struct net_device *, u32,
726 struct ethtool_coalesce *);
727 int (*set_per_queue_coalesce)(struct net_device *, u32,
728 struct ethtool_coalesce *);
729 int (*get_link_ksettings)(struct net_device *,
730 struct ethtool_link_ksettings *);
731 int (*set_link_ksettings)(struct net_device *,
732 const struct ethtool_link_ksettings *);
733 void (*get_fec_stats)(struct net_device *dev,
734 struct ethtool_fec_stats *fec_stats);
735 int (*get_fecparam)(struct net_device *,
736 struct ethtool_fecparam *);
737 int (*set_fecparam)(struct net_device *,
738 struct ethtool_fecparam *);
739 void (*get_ethtool_phy_stats)(struct net_device *,
740 struct ethtool_stats *, u64 *);
741 int (*get_phy_tunable)(struct net_device *,
742 const struct ethtool_tunable *, void *);
743 int (*set_phy_tunable)(struct net_device *,
744 const struct ethtool_tunable *, const void *);
745 int (*get_module_eeprom_by_page)(struct net_device *dev,
746 const struct ethtool_module_eeprom *page,
747 struct netlink_ext_ack *extack);
748 void (*get_eth_phy_stats)(struct net_device *dev,
749 struct ethtool_eth_phy_stats *phy_stats);
750 void (*get_eth_mac_stats)(struct net_device *dev,
751 struct ethtool_eth_mac_stats *mac_stats);
752 void (*get_eth_ctrl_stats)(struct net_device *dev,
753 struct ethtool_eth_ctrl_stats *ctrl_stats);
754 void (*get_rmon_stats)(struct net_device *dev,
755 struct ethtool_rmon_stats *rmon_stats,
756 const struct ethtool_rmon_hist_range **ranges);
757 int (*get_module_power_mode)(struct net_device *dev,
758 struct ethtool_module_power_mode_params *params,
759 struct netlink_ext_ack *extack);
760 int (*set_module_power_mode)(struct net_device *dev,
761 const struct ethtool_module_power_mode_params *params,
762 struct netlink_ext_ack *extack);
763 };
764
765 int ethtool_check_ops(const struct ethtool_ops *ops);
766
767 struct ethtool_rx_flow_rule {
768 struct flow_rule *rule;
769 unsigned long priv[];
770 };
771
772 struct ethtool_rx_flow_spec_input {
773 const struct ethtool_rx_flow_spec *fs;
774 u32 rss_ctx;
775 };
776
777 struct ethtool_rx_flow_rule *
778 ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input);
779 void ethtool_rx_flow_rule_destroy(struct ethtool_rx_flow_rule *rule);
780
781 bool ethtool_virtdev_validate_cmd(const struct ethtool_link_ksettings *cmd);
782 int ethtool_virtdev_set_link_ksettings(struct net_device *dev,
783 const struct ethtool_link_ksettings *cmd,
784 u32 *dev_speed, u8 *dev_duplex);
785
786 struct phy_device;
787 struct phy_tdr_config;
788
789 /**
790 * struct ethtool_phy_ops - Optional PHY device options
791 * @get_sset_count: Get number of strings that @get_strings will write.
792 * @get_strings: Return a set of strings that describe the requested objects
793 * @get_stats: Return extended statistics about the PHY device.
794 * @start_cable_test: Start a cable test
795 * @start_cable_test_tdr: Start a Time Domain Reflectometry cable test
796 *
797 * All operations are optional (i.e. the function pointer may be set to %NULL)
798 * and callers must take this into account. Callers must hold the RTNL lock.
799 */
800 struct ethtool_phy_ops {
801 int (*get_sset_count)(struct phy_device *dev);
802 int (*get_strings)(struct phy_device *dev, u8 *data);
803 int (*get_stats)(struct phy_device *dev,
804 struct ethtool_stats *stats, u64 *data);
805 int (*start_cable_test)(struct phy_device *phydev,
806 struct netlink_ext_ack *extack);
807 int (*start_cable_test_tdr)(struct phy_device *phydev,
808 struct netlink_ext_ack *extack,
809 const struct phy_tdr_config *config);
810 };
811
812 /**
813 * ethtool_set_ethtool_phy_ops - Set the ethtool_phy_ops singleton
814 * @ops: Ethtool PHY operations to set
815 */
816 void ethtool_set_ethtool_phy_ops(const struct ethtool_phy_ops *ops);
817
818 /**
819 * ethtool_params_from_link_mode - Derive link parameters from a given link mode
820 * @link_ksettings: Link parameters to be derived from the link mode
821 * @link_mode: Link mode
822 */
823 void
824 ethtool_params_from_link_mode(struct ethtool_link_ksettings *link_ksettings,
825 enum ethtool_link_mode_bit_indices link_mode);
826
827 /**
828 * ethtool_get_phc_vclocks - Derive phc vclocks information, and caller
829 * is responsible to free memory of vclock_index
830 * @dev: pointer to net_device structure
831 * @vclock_index: pointer to pointer of vclock index
832 *
833 * Return number of phc vclocks
834 */
835 int ethtool_get_phc_vclocks(struct net_device *dev, int **vclock_index);
836
837 /**
838 * ethtool_sprintf - Write formatted string to ethtool string data
839 * @data: Pointer to start of string to update
840 * @fmt: Format of string to write
841 *
842 * Write formatted string to data. Update data to point at start of
843 * next string.
844 */
845 extern __printf(2, 3) void ethtool_sprintf(u8 **data, const char *fmt, ...);
846 #endif /* _LINUX_ETHTOOL_H */
847