1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * ethtool.h: Defines for Linux ethtool. 4 * 5 * Copyright (C) 1998 David S. Miller ([email protected]) 6 * Copyright 2001 Jeff Garzik <[email protected]> 7 * Portions Copyright 2001 Sun Microsystems ([email protected]) 8 * Portions Copyright 2002 Intel ([email protected], 9 * [email protected], 10 * [email protected]) 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/if_ether.h> 19 #include <linux/netlink.h> 20 #include <uapi/linux/ethtool.h> 21 22 struct compat_ethtool_rx_flow_spec { 23 u32 flow_type; 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; 29 u32 location; 30 }; 31 32 struct compat_ethtool_rxnfc { 33 u32 cmd; 34 u32 flow_type; 35 compat_u64 data; 36 struct compat_ethtool_rx_flow_spec fs; 37 u32 rule_cnt; 38 u32 rule_locs[]; 39 }; 40 41 #include <linux/rculist.h> 42 43 /** 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 48 * is not supported) 49 * @ETHTOOL_ID_OFF: LED should be turned off (used iff %ETHTOOL_ID_ACTIVE 50 * is not supported) 51 */ 52 enum ethtool_phys_id_state { 53 ETHTOOL_ID_INACTIVE, 54 ETHTOOL_ID_ACTIVE, 55 ETHTOOL_ID_ON, 56 ETHTOOL_ID_OFF 57 }; 58 59 enum { 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 */ 63 64 /* 65 * Add your fresh new hash function bits above and remember to update 66 * rss_hash_func_strings[] in ethtool.c 67 */ 68 ETH_RSS_HASH_FUNCS_COUNT 69 }; 70 71 /** 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 80 */ 81 struct kernel_ethtool_ringparam { 82 u32 rx_buf_len; 83 u8 tcp_data_split; 84 u8 tx_push; 85 u8 rx_push; 86 u32 cqe_size; 87 u32 tx_push_buf_len; 88 u32 tx_push_buf_max_len; 89 }; 90 91 /** 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 99 */ 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), 107 }; 108 109 #define __ETH_RSS_HASH_BIT(bit) ((u32)1 << (bit)) 110 #define __ETH_RSS_HASH(name) __ETH_RSS_HASH_BIT(ETH_RSS_HASH_##name##_BIT) 111 112 #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) 115 116 #define ETH_RSS_HASH_UNKNOWN 0 117 #define ETH_RSS_HASH_NO_CHANGE 0 118 119 struct net_device; 120 struct netlink_ext_ack; 121 122 /* Link extended state and substate. */ 123 struct ethtool_link_ext_state_info { 124 enum ethtool_link_ext_state link_ext_state; 125 union { 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; 133 }; 134 }; 135 136 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. 143 * 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. 146 */ 147 u64 link_down_events; 148 }; 149 150 /** 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 154 * 155 * This function provides the default policy for RX flow hash indirection. 156 */ 157 static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings) 158 { 159 return index % n_rx_rings; 160 } 161 162 /* declare a link mode bitmap */ 163 #define __ETHTOOL_DECLARE_LINK_MODE_MASK(name) \ 164 DECLARE_BITMAP(name, __ETHTOOL_LINK_MODE_MASK_NBITS) 165 166 /* drivers must ignore base.cmd and base.link_mode_masks_nwords 167 * fields, but they are allowed to overwrite them (will be ignored). 168 */ 169 struct ethtool_link_ksettings { 170 struct ethtool_link_settings base; 171 struct { 172 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported); 173 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising); 174 __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising); 175 } link_modes; 176 u32 lanes; 177 }; 178 179 /** 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 183 */ 184 #define ethtool_link_ksettings_zero_link_mode(ptr, name) \ 185 bitmap_zero((ptr)->link_modes.name, __ETHTOOL_LINK_MODE_MASK_NBITS) 186 187 /** 188 * ethtool_link_ksettings_add_link_mode - set bit in link_ksettings 189 * link mode mask 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) 194 */ 195 #define ethtool_link_ksettings_add_link_mode(ptr, name, mode) \ 196 __set_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name) 197 198 /** 199 * ethtool_link_ksettings_del_link_mode - clear bit in link_ksettings 200 * link mode mask 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) 205 */ 206 #define ethtool_link_ksettings_del_link_mode(ptr, name, mode) \ 207 __clear_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name) 208 209 /** 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) 215 * 216 * Returns true/false. 217 */ 218 #define ethtool_link_ksettings_test_link_mode(ptr, name, mode) \ 219 test_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name) 220 221 extern int 222 __ethtool_get_link_ksettings(struct net_device *dev, 223 struct ethtool_link_ksettings *link_ksettings); 224 225 struct ethtool_keee { 226 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported); 227 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertised); 228 __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertised); 229 u32 tx_lpi_timer; 230 bool tx_lpi_enabled; 231 bool eee_active; 232 bool eee_enabled; 233 }; 234 235 struct kernel_ethtool_coalesce { 236 u8 use_cqe_mode_tx; 237 u8 use_cqe_mode_rx; 238 u32 tx_aggr_max_bytes; 239 u32 tx_aggr_max_frames; 240 u32 tx_aggr_time_usecs; 241 }; 242 243 /** 244 * ethtool_intersect_link_masks - Given two link masks, AND them together 245 * @dst: first mask and where result is stored 246 * @src: second mask to intersect with 247 * 248 * Given two link mode masks, AND them together and save the result in dst. 249 */ 250 void ethtool_intersect_link_masks(struct ethtool_link_ksettings *dst, 251 struct ethtool_link_ksettings *src); 252 253 void ethtool_convert_legacy_u32_to_link_mode(unsigned long *dst, 254 u32 legacy_u32); 255 256 /* return false if src had higher bits set. lower bits always updated. */ 257 bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32, 258 const unsigned long *src); 259 260 #define ETHTOOL_COALESCE_RX_USECS BIT(0) 261 #define ETHTOOL_COALESCE_RX_MAX_FRAMES BIT(1) 262 #define ETHTOOL_COALESCE_RX_USECS_IRQ BIT(2) 263 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ BIT(3) 264 #define ETHTOOL_COALESCE_TX_USECS BIT(4) 265 #define ETHTOOL_COALESCE_TX_MAX_FRAMES BIT(5) 266 #define ETHTOOL_COALESCE_TX_USECS_IRQ BIT(6) 267 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ BIT(7) 268 #define ETHTOOL_COALESCE_STATS_BLOCK_USECS BIT(8) 269 #define ETHTOOL_COALESCE_USE_ADAPTIVE_RX BIT(9) 270 #define ETHTOOL_COALESCE_USE_ADAPTIVE_TX BIT(10) 271 #define ETHTOOL_COALESCE_PKT_RATE_LOW BIT(11) 272 #define ETHTOOL_COALESCE_RX_USECS_LOW BIT(12) 273 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW BIT(13) 274 #define ETHTOOL_COALESCE_TX_USECS_LOW BIT(14) 275 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW BIT(15) 276 #define ETHTOOL_COALESCE_PKT_RATE_HIGH BIT(16) 277 #define ETHTOOL_COALESCE_RX_USECS_HIGH BIT(17) 278 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH BIT(18) 279 #define ETHTOOL_COALESCE_TX_USECS_HIGH BIT(19) 280 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH BIT(20) 281 #define ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL BIT(21) 282 #define ETHTOOL_COALESCE_USE_CQE_RX BIT(22) 283 #define ETHTOOL_COALESCE_USE_CQE_TX BIT(23) 284 #define ETHTOOL_COALESCE_TX_AGGR_MAX_BYTES BIT(24) 285 #define ETHTOOL_COALESCE_TX_AGGR_MAX_FRAMES BIT(25) 286 #define ETHTOOL_COALESCE_TX_AGGR_TIME_USECS BIT(26) 287 #define ETHTOOL_COALESCE_RX_PROFILE BIT(27) 288 #define ETHTOOL_COALESCE_TX_PROFILE BIT(28) 289 #define ETHTOOL_COALESCE_ALL_PARAMS GENMASK(28, 0) 290 291 #define ETHTOOL_COALESCE_USECS \ 292 (ETHTOOL_COALESCE_RX_USECS | ETHTOOL_COALESCE_TX_USECS) 293 #define ETHTOOL_COALESCE_MAX_FRAMES \ 294 (ETHTOOL_COALESCE_RX_MAX_FRAMES | ETHTOOL_COALESCE_TX_MAX_FRAMES) 295 #define ETHTOOL_COALESCE_USECS_IRQ \ 296 (ETHTOOL_COALESCE_RX_USECS_IRQ | ETHTOOL_COALESCE_TX_USECS_IRQ) 297 #define ETHTOOL_COALESCE_MAX_FRAMES_IRQ \ 298 (ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ | \ 299 ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ) 300 #define ETHTOOL_COALESCE_USE_ADAPTIVE \ 301 (ETHTOOL_COALESCE_USE_ADAPTIVE_RX | ETHTOOL_COALESCE_USE_ADAPTIVE_TX) 302 #define ETHTOOL_COALESCE_USECS_LOW_HIGH \ 303 (ETHTOOL_COALESCE_RX_USECS_LOW | ETHTOOL_COALESCE_TX_USECS_LOW | \ 304 ETHTOOL_COALESCE_RX_USECS_HIGH | ETHTOOL_COALESCE_TX_USECS_HIGH) 305 #define ETHTOOL_COALESCE_MAX_FRAMES_LOW_HIGH \ 306 (ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW | \ 307 ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW | \ 308 ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH | \ 309 ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH) 310 #define ETHTOOL_COALESCE_PKT_RATE_RX_USECS \ 311 (ETHTOOL_COALESCE_USE_ADAPTIVE_RX | \ 312 ETHTOOL_COALESCE_RX_USECS_LOW | ETHTOOL_COALESCE_RX_USECS_HIGH | \ 313 ETHTOOL_COALESCE_PKT_RATE_LOW | ETHTOOL_COALESCE_PKT_RATE_HIGH | \ 314 ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL) 315 #define ETHTOOL_COALESCE_USE_CQE \ 316 (ETHTOOL_COALESCE_USE_CQE_RX | ETHTOOL_COALESCE_USE_CQE_TX) 317 #define ETHTOOL_COALESCE_TX_AGGR \ 318 (ETHTOOL_COALESCE_TX_AGGR_MAX_BYTES | \ 319 ETHTOOL_COALESCE_TX_AGGR_MAX_FRAMES | \ 320 ETHTOOL_COALESCE_TX_AGGR_TIME_USECS) 321 322 #define ETHTOOL_STAT_NOT_SET (~0ULL) 323 324 static inline void ethtool_stats_init(u64 *stats, unsigned int n) 325 { 326 while (n--) 327 stats[n] = ETHTOOL_STAT_NOT_SET; 328 } 329 330 /* Basic IEEE 802.3 MAC statistics (30.3.1.1.*), not otherwise exposed 331 * via a more targeted API. 332 */ 333 struct ethtool_eth_mac_stats { 334 enum ethtool_mac_stats_src src; 335 struct_group(stats, 336 u64 FramesTransmittedOK; 337 u64 SingleCollisionFrames; 338 u64 MultipleCollisionFrames; 339 u64 FramesReceivedOK; 340 u64 FrameCheckSequenceErrors; 341 u64 AlignmentErrors; 342 u64 OctetsTransmittedOK; 343 u64 FramesWithDeferredXmissions; 344 u64 LateCollisions; 345 u64 FramesAbortedDueToXSColls; 346 u64 FramesLostDueToIntMACXmitError; 347 u64 CarrierSenseErrors; 348 u64 OctetsReceivedOK; 349 u64 FramesLostDueToIntMACRcvError; 350 u64 MulticastFramesXmittedOK; 351 u64 BroadcastFramesXmittedOK; 352 u64 FramesWithExcessiveDeferral; 353 u64 MulticastFramesReceivedOK; 354 u64 BroadcastFramesReceivedOK; 355 u64 InRangeLengthErrors; 356 u64 OutOfRangeLengthField; 357 u64 FrameTooLongErrors; 358 ); 359 }; 360 361 /* Basic IEEE 802.3 PHY statistics (30.3.2.1.*), not otherwise exposed 362 * via a more targeted API. 363 */ 364 struct ethtool_eth_phy_stats { 365 enum ethtool_mac_stats_src src; 366 struct_group(stats, 367 u64 SymbolErrorDuringCarrier; 368 ); 369 }; 370 371 /* Basic IEEE 802.3 MAC Ctrl statistics (30.3.3.*), not otherwise exposed 372 * via a more targeted API. 373 */ 374 struct ethtool_eth_ctrl_stats { 375 enum ethtool_mac_stats_src src; 376 struct_group(stats, 377 u64 MACControlFramesTransmitted; 378 u64 MACControlFramesReceived; 379 u64 UnsupportedOpcodesReceived; 380 ); 381 }; 382 383 /** 384 * struct ethtool_pause_stats - statistics for IEEE 802.3x pause frames 385 * @src: input field denoting whether stats should be queried from the eMAC or 386 * pMAC (if the MM layer is supported). To be ignored otherwise. 387 * @tx_pause_frames: transmitted pause frame count. Reported to user space 388 * as %ETHTOOL_A_PAUSE_STAT_TX_FRAMES. 389 * 390 * Equivalent to `30.3.4.2 aPAUSEMACCtrlFramesTransmitted` 391 * from the standard. 392 * 393 * @rx_pause_frames: received pause frame count. Reported to user space 394 * as %ETHTOOL_A_PAUSE_STAT_RX_FRAMES. Equivalent to: 395 * 396 * Equivalent to `30.3.4.3 aPAUSEMACCtrlFramesReceived` 397 * from the standard. 398 */ 399 struct ethtool_pause_stats { 400 enum ethtool_mac_stats_src src; 401 struct_group(stats, 402 u64 tx_pause_frames; 403 u64 rx_pause_frames; 404 ); 405 }; 406 407 #define ETHTOOL_MAX_LANES 8 408 409 /** 410 * struct ethtool_fec_stats - statistics for IEEE 802.3 FEC 411 * @corrected_blocks: number of received blocks corrected by FEC 412 * Reported to user space as %ETHTOOL_A_FEC_STAT_CORRECTED. 413 * 414 * Equivalent to `30.5.1.1.17 aFECCorrectedBlocks` from the standard. 415 * 416 * @uncorrectable_blocks: number of received blocks FEC was not able to correct 417 * Reported to user space as %ETHTOOL_A_FEC_STAT_UNCORR. 418 * 419 * Equivalent to `30.5.1.1.18 aFECUncorrectableBlocks` from the standard. 420 * 421 * @corrected_bits: number of bits corrected by FEC 422 * Similar to @corrected_blocks but counts individual bit changes, 423 * not entire FEC data blocks. This is a non-standard statistic. 424 * Reported to user space as %ETHTOOL_A_FEC_STAT_CORR_BITS. 425 * 426 * For each of the above fields, the two substructure members are: 427 * 428 * - @lanes: per-lane/PCS-instance counts as defined by the standard 429 * - @total: error counts for the entire port, for drivers incapable of reporting 430 * per-lane stats 431 * 432 * Drivers should fill in either only total or per-lane statistics, core 433 * will take care of adding lane values up to produce the total. 434 */ 435 struct ethtool_fec_stats { 436 struct ethtool_fec_stat { 437 u64 total; 438 u64 lanes[ETHTOOL_MAX_LANES]; 439 } corrected_blocks, uncorrectable_blocks, corrected_bits; 440 }; 441 442 /** 443 * struct ethtool_rmon_hist_range - byte range for histogram statistics 444 * @low: low bound of the bucket (inclusive) 445 * @high: high bound of the bucket (inclusive) 446 */ 447 struct ethtool_rmon_hist_range { 448 u16 low; 449 u16 high; 450 }; 451 452 #define ETHTOOL_RMON_HIST_MAX 10 453 454 /** 455 * struct ethtool_rmon_stats - selected RMON (RFC 2819) statistics 456 * @src: input field denoting whether stats should be queried from the eMAC or 457 * pMAC (if the MM layer is supported). To be ignored otherwise. 458 * @undersize_pkts: Equivalent to `etherStatsUndersizePkts` from the RFC. 459 * @oversize_pkts: Equivalent to `etherStatsOversizePkts` from the RFC. 460 * @fragments: Equivalent to `etherStatsFragments` from the RFC. 461 * @jabbers: Equivalent to `etherStatsJabbers` from the RFC. 462 * @hist: Packet counter for packet length buckets (e.g. 463 * `etherStatsPkts128to255Octets` from the RFC). 464 * @hist_tx: Tx counters in similar form to @hist, not defined in the RFC. 465 * 466 * Selection of RMON (RFC 2819) statistics which are not exposed via different 467 * APIs, primarily the packet-length-based counters. 468 * Unfortunately different designs choose different buckets beyond 469 * the 1024B mark (jumbo frame teritory), so the definition of the bucket 470 * ranges is left to the driver. 471 */ 472 struct ethtool_rmon_stats { 473 enum ethtool_mac_stats_src src; 474 struct_group(stats, 475 u64 undersize_pkts; 476 u64 oversize_pkts; 477 u64 fragments; 478 u64 jabbers; 479 480 u64 hist[ETHTOOL_RMON_HIST_MAX]; 481 u64 hist_tx[ETHTOOL_RMON_HIST_MAX]; 482 ); 483 }; 484 485 /** 486 * struct ethtool_ts_stats - HW timestamping statistics 487 * @pkts: Number of packets successfully timestamped by the hardware. 488 * @lost: Number of hardware timestamping requests where the timestamping 489 * information from the hardware never arrived for submission with 490 * the skb. 491 * @err: Number of arbitrary timestamp generation error events that the 492 * hardware encountered, exclusive of @lost statistics. Cases such 493 * as resource exhaustion, unavailability, firmware errors, and 494 * detected illogical timestamp values not submitted with the skb 495 * are inclusive to this counter. 496 */ 497 struct ethtool_ts_stats { 498 struct_group(tx_stats, 499 u64 pkts; 500 u64 lost; 501 u64 err; 502 ); 503 }; 504 505 #define ETH_MODULE_EEPROM_PAGE_LEN 128 506 #define ETH_MODULE_MAX_I2C_ADDRESS 0x7f 507 508 /** 509 * struct ethtool_module_eeprom - plug-in module EEPROM read / write parameters 510 * @offset: When @offset is 0-127, it is used as an address to the Lower Memory 511 * (@page must be 0). Otherwise, it is used as an address to the 512 * Upper Memory. 513 * @length: Number of bytes to read / write. 514 * @page: Page number. 515 * @bank: Bank number, if supported by EEPROM spec. 516 * @i2c_address: I2C address of a page. Value less than 0x7f expected. Most 517 * EEPROMs use 0x50 or 0x51. 518 * @data: Pointer to buffer with EEPROM data of @length size. 519 */ 520 struct ethtool_module_eeprom { 521 u32 offset; 522 u32 length; 523 u8 page; 524 u8 bank; 525 u8 i2c_address; 526 u8 *data; 527 }; 528 529 /** 530 * struct ethtool_module_power_mode_params - module power mode parameters 531 * @policy: The power mode policy enforced by the host for the plug-in module. 532 * @mode: The operational power mode of the plug-in module. Should be filled by 533 * device drivers on get operations. 534 */ 535 struct ethtool_module_power_mode_params { 536 enum ethtool_module_power_mode_policy policy; 537 enum ethtool_module_power_mode mode; 538 }; 539 540 /** 541 * struct ethtool_mm_state - 802.3 MAC merge layer state 542 * @verify_time: 543 * wait time between verification attempts in ms (according to clause 544 * 30.14.1.6 aMACMergeVerifyTime) 545 * @max_verify_time: 546 * maximum accepted value for the @verify_time variable in set requests 547 * @verify_status: 548 * state of the verification state machine of the MM layer (according to 549 * clause 30.14.1.2 aMACMergeStatusVerify) 550 * @tx_enabled: 551 * set if the MM layer is administratively enabled in the TX direction 552 * (according to clause 30.14.1.3 aMACMergeEnableTx) 553 * @tx_active: 554 * set if the MM layer is enabled in the TX direction, which makes FP 555 * possible (according to 30.14.1.5 aMACMergeStatusTx). This should be 556 * true if MM is enabled, and the verification status is either verified, 557 * or disabled. 558 * @pmac_enabled: 559 * set if the preemptible MAC is powered on and is able to receive 560 * preemptible packets and respond to verification frames. 561 * @verify_enabled: 562 * set if the Verify function of the MM layer (which sends SMD-V 563 * verification requests) is administratively enabled (regardless of 564 * whether it is currently in the ETHTOOL_MM_VERIFY_STATUS_DISABLED state 565 * or not), according to clause 30.14.1.4 aMACMergeVerifyDisableTx (but 566 * using positive rather than negative logic). The device should always 567 * respond to received SMD-V requests as long as @pmac_enabled is set. 568 * @tx_min_frag_size: 569 * the minimum size of non-final mPacket fragments that the link partner 570 * supports receiving, expressed in octets. Compared to the definition 571 * from clause 30.14.1.7 aMACMergeAddFragSize which is expressed in the 572 * range 0 to 3 (requiring a translation to the size in octets according 573 * to the formula 64 * (1 + addFragSize) - 4), a value in a continuous and 574 * unbounded range can be specified here. 575 * @rx_min_frag_size: 576 * the minimum size of non-final mPacket fragments that this device 577 * supports receiving, expressed in octets. 578 */ 579 struct ethtool_mm_state { 580 u32 verify_time; 581 u32 max_verify_time; 582 enum ethtool_mm_verify_status verify_status; 583 bool tx_enabled; 584 bool tx_active; 585 bool pmac_enabled; 586 bool verify_enabled; 587 u32 tx_min_frag_size; 588 u32 rx_min_frag_size; 589 }; 590 591 /** 592 * struct ethtool_mm_cfg - 802.3 MAC merge layer configuration 593 * @verify_time: see struct ethtool_mm_state 594 * @verify_enabled: see struct ethtool_mm_state 595 * @tx_enabled: see struct ethtool_mm_state 596 * @pmac_enabled: see struct ethtool_mm_state 597 * @tx_min_frag_size: see struct ethtool_mm_state 598 */ 599 struct ethtool_mm_cfg { 600 u32 verify_time; 601 bool verify_enabled; 602 bool tx_enabled; 603 bool pmac_enabled; 604 u32 tx_min_frag_size; 605 }; 606 607 /** 608 * struct ethtool_mm_stats - 802.3 MAC merge layer statistics 609 * @MACMergeFrameAssErrorCount: 610 * received MAC frames with reassembly errors 611 * @MACMergeFrameSmdErrorCount: 612 * received MAC frames/fragments rejected due to unknown or incorrect SMD 613 * @MACMergeFrameAssOkCount: 614 * received MAC frames that were successfully reassembled and passed up 615 * @MACMergeFragCountRx: 616 * number of additional correct SMD-C mPackets received due to preemption 617 * @MACMergeFragCountTx: 618 * number of additional mPackets sent due to preemption 619 * @MACMergeHoldCount: 620 * number of times the MM layer entered the HOLD state, which blocks 621 * transmission of preemptible traffic 622 */ 623 struct ethtool_mm_stats { 624 u64 MACMergeFrameAssErrorCount; 625 u64 MACMergeFrameSmdErrorCount; 626 u64 MACMergeFrameAssOkCount; 627 u64 MACMergeFragCountRx; 628 u64 MACMergeFragCountTx; 629 u64 MACMergeHoldCount; 630 }; 631 632 /** 633 * struct ethtool_rxfh_param - RXFH (RSS) parameters 634 * @hfunc: Defines the current RSS hash function used by HW (or to be set to). 635 * Valid values are one of the %ETH_RSS_HASH_*. 636 * @indir_size: On SET, the array size of the user buffer for the 637 * indirection table, which may be zero, or 638 * %ETH_RXFH_INDIR_NO_CHANGE. On GET (read from the driver), 639 * the array size of the hardware indirection table. 640 * @indir: The indirection table of size @indir_size entries. 641 * @key_size: On SET, the array size of the user buffer for the hash key, 642 * which may be zero. On GET (read from the driver), the size of the 643 * hardware hash key. 644 * @key: The hash key of size @key_size bytes. 645 * @rss_context: RSS context identifier. Context 0 is the default for normal 646 * traffic; other contexts can be referenced as the destination for RX flow 647 * classification rules. On SET, %ETH_RXFH_CONTEXT_ALLOC is used 648 * to allocate a new RSS context; on return this field will 649 * contain the ID of the newly allocated context. 650 * @rss_delete: Set to non-ZERO to remove the @rss_context context. 651 * @input_xfrm: Defines how the input data is transformed. Valid values are one 652 * of %RXH_XFRM_*. 653 */ 654 struct ethtool_rxfh_param { 655 u8 hfunc; 656 u32 indir_size; 657 u32 *indir; 658 u32 key_size; 659 u8 *key; 660 u32 rss_context; 661 u8 rss_delete; 662 u8 input_xfrm; 663 }; 664 665 /** 666 * struct ethtool_ops - optional netdev operations 667 * @cap_link_lanes_supported: indicates if the driver supports lanes 668 * parameter. 669 * @cap_rss_ctx_supported: indicates if the driver supports RSS 670 * contexts. 671 * @cap_rss_sym_xor_supported: indicates if the driver supports symmetric-xor 672 * RSS. 673 * @supported_coalesce_params: supported types of interrupt coalescing. 674 * @supported_ring_params: supported ring params. 675 * @get_drvinfo: Report driver/device information. Modern drivers no 676 * longer have to implement this callback. Most fields are 677 * correctly filled in by the core using system information, or 678 * populated using other driver operations. 679 * @get_regs_len: Get buffer length required for @get_regs 680 * @get_regs: Get device registers 681 * @get_wol: Report whether Wake-on-Lan is enabled 682 * @set_wol: Turn Wake-on-Lan on or off. Returns a negative error code 683 * or zero. 684 * @get_msglevel: Report driver message level. This should be the value 685 * of the @msg_enable field used by netif logging functions. 686 * @set_msglevel: Set driver message level 687 * @nway_reset: Restart autonegotiation. Returns a negative error code 688 * or zero. 689 * @get_link: Report whether physical link is up. Will only be called if 690 * the netdev is up. Should usually be set to ethtool_op_get_link(), 691 * which uses netif_carrier_ok(). 692 * @get_link_ext_state: Report link extended state. Should set link_ext_state and 693 * link_ext_substate (link_ext_substate of 0 means link_ext_substate is unknown, 694 * do not attach ext_substate attribute to netlink message). If link_ext_state 695 * and link_ext_substate are unknown, return -ENODATA. If not implemented, 696 * link_ext_state and link_ext_substate will not be sent to userspace. 697 * @get_link_ext_stats: Read extra link-related counters. 698 * @get_eeprom_len: Read range of EEPROM addresses for validation of 699 * @get_eeprom and @set_eeprom requests. 700 * Returns 0 if device does not support EEPROM access. 701 * @get_eeprom: Read data from the device EEPROM. 702 * Should fill in the magic field. Don't need to check len for zero 703 * or wraparound. Fill in the data argument with the eeprom values 704 * from offset to offset + len. Update len to the amount read. 705 * Returns an error or zero. 706 * @set_eeprom: Write data to the device EEPROM. 707 * Should validate the magic field. Don't need to check len for zero 708 * or wraparound. Update len to the amount written. Returns an error 709 * or zero. 710 * @get_coalesce: Get interrupt coalescing parameters. Returns a negative 711 * error code or zero. 712 * @set_coalesce: Set interrupt coalescing parameters. Supported coalescing 713 * types should be set in @supported_coalesce_params. 714 * Returns a negative error code or zero. 715 * @get_ringparam: Report ring sizes 716 * @set_ringparam: Set ring sizes. Returns a negative error code or zero. 717 * @get_pause_stats: Report pause frame statistics. Drivers must not zero 718 * statistics which they don't report. The stats structure is initialized 719 * to ETHTOOL_STAT_NOT_SET indicating driver does not report statistics. 720 * @get_pauseparam: Report pause parameters 721 * @set_pauseparam: Set pause parameters. Returns a negative error code 722 * or zero. 723 * @self_test: Run specified self-tests 724 * @get_strings: Return a set of strings that describe the requested objects 725 * @set_phys_id: Identify the physical devices, e.g. by flashing an LED 726 * attached to it. The implementation may update the indicator 727 * asynchronously or synchronously, but in either case it must return 728 * quickly. It is initially called with the argument %ETHTOOL_ID_ACTIVE, 729 * and must either activate asynchronous updates and return zero, return 730 * a negative error or return a positive frequency for synchronous 731 * indication (e.g. 1 for one on/off cycle per second). If it returns 732 * a frequency then it will be called again at intervals with the 733 * argument %ETHTOOL_ID_ON or %ETHTOOL_ID_OFF and should set the state of 734 * the indicator accordingly. Finally, it is called with the argument 735 * %ETHTOOL_ID_INACTIVE and must deactivate the indicator. Returns a 736 * negative error code or zero. 737 * @get_ethtool_stats: Return extended statistics about the device. 738 * This is only useful if the device maintains statistics not 739 * included in &struct rtnl_link_stats64. 740 * @begin: Function to be called before any other operation. Returns a 741 * negative error code or zero. 742 * @complete: Function to be called after any other operation except 743 * @begin. Will be called even if the other operation failed. 744 * @get_priv_flags: Report driver-specific feature flags. 745 * @set_priv_flags: Set driver-specific feature flags. Returns a negative 746 * error code or zero. 747 * @get_sset_count: Get number of strings that @get_strings will write. 748 * @get_rxnfc: Get RX flow classification rules. Returns a negative 749 * error code or zero. 750 * @set_rxnfc: Set RX flow classification rules. Returns a negative 751 * error code or zero. 752 * @flash_device: Write a firmware image to device's flash memory. 753 * Returns a negative error code or zero. 754 * @reset: Reset (part of) the device, as specified by a bitmask of 755 * flags from &enum ethtool_reset_flags. Returns a negative 756 * error code or zero. 757 * @get_rxfh_key_size: Get the size of the RX flow hash key. 758 * Returns zero if not supported for this specific device. 759 * @get_rxfh_indir_size: Get the size of the RX flow hash indirection table. 760 * Returns zero if not supported for this specific device. 761 * @get_rxfh: Get the contents of the RX flow hash indirection table, hash key 762 * and/or hash function. 763 * Returns a negative error code or zero. 764 * @set_rxfh: Set the contents of the RX flow hash indirection table, hash 765 * key, and/or hash function. Arguments which are set to %NULL or zero 766 * will remain unchanged. 767 * Returns a negative error code or zero. An error code must be returned 768 * if at least one unsupported change was requested. 769 * @get_channels: Get number of channels. 770 * @set_channels: Set number of channels. Returns a negative error code or 771 * zero. 772 * @get_dump_flag: Get dump flag indicating current dump length, version, 773 * and flag of the device. 774 * @get_dump_data: Get dump data. 775 * @set_dump: Set dump specific flags to the device. 776 * @get_ts_info: Get the time stamping and PTP hardware clock capabilities. 777 * It may be called with RCU, or rtnl or reference on the device. 778 * Drivers supporting transmit time stamps in software should set this to 779 * ethtool_op_get_ts_info(). Drivers must not zero statistics which they 780 * don't report. The stats structure is initialized to ETHTOOL_STAT_NOT_SET 781 * indicating driver does not report statistics. 782 * @get_ts_stats: Query the device hardware timestamping statistics. 783 * @get_module_info: Get the size and type of the eeprom contained within 784 * a plug-in module. 785 * @get_module_eeprom: Get the eeprom information from the plug-in module 786 * @get_eee: Get Energy-Efficient (EEE) supported and status. 787 * @set_eee: Set EEE status (enable/disable) as well as LPI timers. 788 * @get_tunable: Read the value of a driver / device tunable. 789 * @set_tunable: Set the value of a driver / device tunable. 790 * @get_per_queue_coalesce: Get interrupt coalescing parameters per queue. 791 * It must check that the given queue number is valid. If neither a RX nor 792 * a TX queue has this number, return -EINVAL. If only a RX queue or a TX 793 * queue has this number, set the inapplicable fields to ~0 and return 0. 794 * Returns a negative error code or zero. 795 * @set_per_queue_coalesce: Set interrupt coalescing parameters per queue. 796 * It must check that the given queue number is valid. If neither a RX nor 797 * a TX queue has this number, return -EINVAL. If only a RX queue or a TX 798 * queue has this number, ignore the inapplicable fields. Supported 799 * coalescing types should be set in @supported_coalesce_params. 800 * Returns a negative error code or zero. 801 * @get_link_ksettings: Get various device settings including Ethernet link 802 * settings. The %cmd and %link_mode_masks_nwords fields should be 803 * ignored (use %__ETHTOOL_LINK_MODE_MASK_NBITS instead of the latter), 804 * any change to them will be overwritten by kernel. Returns a negative 805 * error code or zero. 806 * @set_link_ksettings: Set various device settings including Ethernet link 807 * settings. The %cmd and %link_mode_masks_nwords fields should be 808 * ignored (use %__ETHTOOL_LINK_MODE_MASK_NBITS instead of the latter), 809 * any change to them will be overwritten by kernel. Returns a negative 810 * error code or zero. 811 * @get_fec_stats: Report FEC statistics. 812 * Core will sum up per-lane stats to get the total. 813 * Drivers must not zero statistics which they don't report. The stats 814 * structure is initialized to ETHTOOL_STAT_NOT_SET indicating driver does 815 * not report statistics. 816 * @get_fecparam: Get the network device Forward Error Correction parameters. 817 * @set_fecparam: Set the network device Forward Error Correction parameters. 818 * @get_ethtool_phy_stats: Return extended statistics about the PHY device. 819 * This is only useful if the device maintains PHY statistics and 820 * cannot use the standard PHY library helpers. 821 * @get_phy_tunable: Read the value of a PHY tunable. 822 * @set_phy_tunable: Set the value of a PHY tunable. 823 * @get_module_eeprom_by_page: Get a region of plug-in module EEPROM data from 824 * specified page. Returns a negative error code or the amount of bytes 825 * read. 826 * @set_module_eeprom_by_page: Write to a region of plug-in module EEPROM, 827 * from kernel space only. Returns a negative error code or zero. 828 * @get_eth_phy_stats: Query some of the IEEE 802.3 PHY statistics. 829 * @get_eth_mac_stats: Query some of the IEEE 802.3 MAC statistics. 830 * @get_eth_ctrl_stats: Query some of the IEEE 802.3 MAC Ctrl statistics. 831 * @get_rmon_stats: Query some of the RMON (RFC 2819) statistics. 832 * Set %ranges to a pointer to zero-terminated array of byte ranges. 833 * @get_module_power_mode: Get the power mode policy for the plug-in module 834 * used by the network device and its operational power mode, if 835 * plugged-in. 836 * @set_module_power_mode: Set the power mode policy for the plug-in module 837 * used by the network device. 838 * @get_mm: Query the 802.3 MAC Merge layer state. 839 * @set_mm: Set the 802.3 MAC Merge layer parameters. 840 * @get_mm_stats: Query the 802.3 MAC Merge layer statistics. 841 * 842 * All operations are optional (i.e. the function pointer may be set 843 * to %NULL) and callers must take this into account. Callers must 844 * hold the RTNL lock. 845 * 846 * See the structures used by these operations for further documentation. 847 * Note that for all operations using a structure ending with a zero- 848 * length array, the array is allocated separately in the kernel and 849 * is passed to the driver as an additional parameter. 850 * 851 * See &struct net_device and &struct net_device_ops for documentation 852 * of the generic netdev features interface. 853 */ 854 struct ethtool_ops { 855 u32 cap_link_lanes_supported:1; 856 u32 cap_rss_ctx_supported:1; 857 u32 cap_rss_sym_xor_supported:1; 858 u32 supported_coalesce_params; 859 u32 supported_ring_params; 860 void (*get_drvinfo)(struct net_device *, struct ethtool_drvinfo *); 861 int (*get_regs_len)(struct net_device *); 862 void (*get_regs)(struct net_device *, struct ethtool_regs *, void *); 863 void (*get_wol)(struct net_device *, struct ethtool_wolinfo *); 864 int (*set_wol)(struct net_device *, struct ethtool_wolinfo *); 865 u32 (*get_msglevel)(struct net_device *); 866 void (*set_msglevel)(struct net_device *, u32); 867 int (*nway_reset)(struct net_device *); 868 u32 (*get_link)(struct net_device *); 869 int (*get_link_ext_state)(struct net_device *, 870 struct ethtool_link_ext_state_info *); 871 void (*get_link_ext_stats)(struct net_device *dev, 872 struct ethtool_link_ext_stats *stats); 873 int (*get_eeprom_len)(struct net_device *); 874 int (*get_eeprom)(struct net_device *, 875 struct ethtool_eeprom *, u8 *); 876 int (*set_eeprom)(struct net_device *, 877 struct ethtool_eeprom *, u8 *); 878 int (*get_coalesce)(struct net_device *, 879 struct ethtool_coalesce *, 880 struct kernel_ethtool_coalesce *, 881 struct netlink_ext_ack *); 882 int (*set_coalesce)(struct net_device *, 883 struct ethtool_coalesce *, 884 struct kernel_ethtool_coalesce *, 885 struct netlink_ext_ack *); 886 void (*get_ringparam)(struct net_device *, 887 struct ethtool_ringparam *, 888 struct kernel_ethtool_ringparam *, 889 struct netlink_ext_ack *); 890 int (*set_ringparam)(struct net_device *, 891 struct ethtool_ringparam *, 892 struct kernel_ethtool_ringparam *, 893 struct netlink_ext_ack *); 894 void (*get_pause_stats)(struct net_device *dev, 895 struct ethtool_pause_stats *pause_stats); 896 void (*get_pauseparam)(struct net_device *, 897 struct ethtool_pauseparam*); 898 int (*set_pauseparam)(struct net_device *, 899 struct ethtool_pauseparam*); 900 void (*self_test)(struct net_device *, struct ethtool_test *, u64 *); 901 void (*get_strings)(struct net_device *, u32 stringset, u8 *); 902 int (*set_phys_id)(struct net_device *, enum ethtool_phys_id_state); 903 void (*get_ethtool_stats)(struct net_device *, 904 struct ethtool_stats *, u64 *); 905 int (*begin)(struct net_device *); 906 void (*complete)(struct net_device *); 907 u32 (*get_priv_flags)(struct net_device *); 908 int (*set_priv_flags)(struct net_device *, u32); 909 int (*get_sset_count)(struct net_device *, int); 910 int (*get_rxnfc)(struct net_device *, 911 struct ethtool_rxnfc *, u32 *rule_locs); 912 int (*set_rxnfc)(struct net_device *, struct ethtool_rxnfc *); 913 int (*flash_device)(struct net_device *, struct ethtool_flash *); 914 int (*reset)(struct net_device *, u32 *); 915 u32 (*get_rxfh_key_size)(struct net_device *); 916 u32 (*get_rxfh_indir_size)(struct net_device *); 917 int (*get_rxfh)(struct net_device *, struct ethtool_rxfh_param *); 918 int (*set_rxfh)(struct net_device *, struct ethtool_rxfh_param *, 919 struct netlink_ext_ack *extack); 920 void (*get_channels)(struct net_device *, struct ethtool_channels *); 921 int (*set_channels)(struct net_device *, struct ethtool_channels *); 922 int (*get_dump_flag)(struct net_device *, struct ethtool_dump *); 923 int (*get_dump_data)(struct net_device *, 924 struct ethtool_dump *, void *); 925 int (*set_dump)(struct net_device *, struct ethtool_dump *); 926 int (*get_ts_info)(struct net_device *, struct ethtool_ts_info *); 927 void (*get_ts_stats)(struct net_device *dev, 928 struct ethtool_ts_stats *ts_stats); 929 int (*get_module_info)(struct net_device *, 930 struct ethtool_modinfo *); 931 int (*get_module_eeprom)(struct net_device *, 932 struct ethtool_eeprom *, u8 *); 933 int (*get_eee)(struct net_device *dev, struct ethtool_keee *eee); 934 int (*set_eee)(struct net_device *dev, struct ethtool_keee *eee); 935 int (*get_tunable)(struct net_device *, 936 const struct ethtool_tunable *, void *); 937 int (*set_tunable)(struct net_device *, 938 const struct ethtool_tunable *, const void *); 939 int (*get_per_queue_coalesce)(struct net_device *, u32, 940 struct ethtool_coalesce *); 941 int (*set_per_queue_coalesce)(struct net_device *, u32, 942 struct ethtool_coalesce *); 943 int (*get_link_ksettings)(struct net_device *, 944 struct ethtool_link_ksettings *); 945 int (*set_link_ksettings)(struct net_device *, 946 const struct ethtool_link_ksettings *); 947 void (*get_fec_stats)(struct net_device *dev, 948 struct ethtool_fec_stats *fec_stats); 949 int (*get_fecparam)(struct net_device *, 950 struct ethtool_fecparam *); 951 int (*set_fecparam)(struct net_device *, 952 struct ethtool_fecparam *); 953 void (*get_ethtool_phy_stats)(struct net_device *, 954 struct ethtool_stats *, u64 *); 955 int (*get_phy_tunable)(struct net_device *, 956 const struct ethtool_tunable *, void *); 957 int (*set_phy_tunable)(struct net_device *, 958 const struct ethtool_tunable *, const void *); 959 int (*get_module_eeprom_by_page)(struct net_device *dev, 960 const struct ethtool_module_eeprom *page, 961 struct netlink_ext_ack *extack); 962 int (*set_module_eeprom_by_page)(struct net_device *dev, 963 const struct ethtool_module_eeprom *page, 964 struct netlink_ext_ack *extack); 965 void (*get_eth_phy_stats)(struct net_device *dev, 966 struct ethtool_eth_phy_stats *phy_stats); 967 void (*get_eth_mac_stats)(struct net_device *dev, 968 struct ethtool_eth_mac_stats *mac_stats); 969 void (*get_eth_ctrl_stats)(struct net_device *dev, 970 struct ethtool_eth_ctrl_stats *ctrl_stats); 971 void (*get_rmon_stats)(struct net_device *dev, 972 struct ethtool_rmon_stats *rmon_stats, 973 const struct ethtool_rmon_hist_range **ranges); 974 int (*get_module_power_mode)(struct net_device *dev, 975 struct ethtool_module_power_mode_params *params, 976 struct netlink_ext_ack *extack); 977 int (*set_module_power_mode)(struct net_device *dev, 978 const struct ethtool_module_power_mode_params *params, 979 struct netlink_ext_ack *extack); 980 int (*get_mm)(struct net_device *dev, struct ethtool_mm_state *state); 981 int (*set_mm)(struct net_device *dev, struct ethtool_mm_cfg *cfg, 982 struct netlink_ext_ack *extack); 983 void (*get_mm_stats)(struct net_device *dev, struct ethtool_mm_stats *stats); 984 }; 985 986 int ethtool_check_ops(const struct ethtool_ops *ops); 987 988 struct ethtool_rx_flow_rule { 989 struct flow_rule *rule; 990 unsigned long priv[]; 991 }; 992 993 struct ethtool_rx_flow_spec_input { 994 const struct ethtool_rx_flow_spec *fs; 995 u32 rss_ctx; 996 }; 997 998 struct ethtool_rx_flow_rule * 999 ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input); 1000 void ethtool_rx_flow_rule_destroy(struct ethtool_rx_flow_rule *rule); 1001 1002 bool ethtool_virtdev_validate_cmd(const struct ethtool_link_ksettings *cmd); 1003 int ethtool_virtdev_set_link_ksettings(struct net_device *dev, 1004 const struct ethtool_link_ksettings *cmd, 1005 u32 *dev_speed, u8 *dev_duplex); 1006 1007 struct phy_device; 1008 struct phy_tdr_config; 1009 struct phy_plca_cfg; 1010 struct phy_plca_status; 1011 1012 /** 1013 * struct ethtool_phy_ops - Optional PHY device options 1014 * @get_sset_count: Get number of strings that @get_strings will write. 1015 * @get_strings: Return a set of strings that describe the requested objects 1016 * @get_stats: Return extended statistics about the PHY device. 1017 * @get_plca_cfg: Return PLCA configuration. 1018 * @set_plca_cfg: Set PLCA configuration. 1019 * @get_plca_status: Get PLCA configuration. 1020 * @start_cable_test: Start a cable test 1021 * @start_cable_test_tdr: Start a Time Domain Reflectometry cable test 1022 * 1023 * All operations are optional (i.e. the function pointer may be set to %NULL) 1024 * and callers must take this into account. Callers must hold the RTNL lock. 1025 */ 1026 struct ethtool_phy_ops { 1027 int (*get_sset_count)(struct phy_device *dev); 1028 int (*get_strings)(struct phy_device *dev, u8 *data); 1029 int (*get_stats)(struct phy_device *dev, 1030 struct ethtool_stats *stats, u64 *data); 1031 int (*get_plca_cfg)(struct phy_device *dev, 1032 struct phy_plca_cfg *plca_cfg); 1033 int (*set_plca_cfg)(struct phy_device *dev, 1034 const struct phy_plca_cfg *plca_cfg, 1035 struct netlink_ext_ack *extack); 1036 int (*get_plca_status)(struct phy_device *dev, 1037 struct phy_plca_status *plca_st); 1038 int (*start_cable_test)(struct phy_device *phydev, 1039 struct netlink_ext_ack *extack); 1040 int (*start_cable_test_tdr)(struct phy_device *phydev, 1041 struct netlink_ext_ack *extack, 1042 const struct phy_tdr_config *config); 1043 }; 1044 1045 /** 1046 * ethtool_set_ethtool_phy_ops - Set the ethtool_phy_ops singleton 1047 * @ops: Ethtool PHY operations to set 1048 */ 1049 void ethtool_set_ethtool_phy_ops(const struct ethtool_phy_ops *ops); 1050 1051 /** 1052 * ethtool_params_from_link_mode - Derive link parameters from a given link mode 1053 * @link_ksettings: Link parameters to be derived from the link mode 1054 * @link_mode: Link mode 1055 */ 1056 void 1057 ethtool_params_from_link_mode(struct ethtool_link_ksettings *link_ksettings, 1058 enum ethtool_link_mode_bit_indices link_mode); 1059 1060 /** 1061 * ethtool_get_phc_vclocks - Derive phc vclocks information, and caller 1062 * is responsible to free memory of vclock_index 1063 * @dev: pointer to net_device structure 1064 * @vclock_index: pointer to pointer of vclock index 1065 * 1066 * Return number of phc vclocks 1067 */ 1068 int ethtool_get_phc_vclocks(struct net_device *dev, int **vclock_index); 1069 1070 /* Some generic methods drivers may use in their ethtool_ops */ 1071 u32 ethtool_op_get_link(struct net_device *dev); 1072 int ethtool_op_get_ts_info(struct net_device *dev, struct ethtool_ts_info *eti); 1073 1074 /** 1075 * ethtool_mm_frag_size_add_to_min - Translate (standard) additional fragment 1076 * size expressed as multiplier into (absolute) minimum fragment size 1077 * value expressed in octets 1078 * @val_add: Value of addFragSize multiplier 1079 */ 1080 static inline u32 ethtool_mm_frag_size_add_to_min(u32 val_add) 1081 { 1082 return (ETH_ZLEN + ETH_FCS_LEN) * (1 + val_add) - ETH_FCS_LEN; 1083 } 1084 1085 /** 1086 * ethtool_mm_frag_size_min_to_add - Translate (absolute) minimum fragment size 1087 * expressed in octets into (standard) additional fragment size expressed 1088 * as multiplier 1089 * @val_min: Value of addFragSize variable in octets 1090 * @val_add: Pointer where the standard addFragSize value is to be returned 1091 * @extack: Netlink extended ack 1092 * 1093 * Translate a value in octets to one of 0, 1, 2, 3 according to the reverse 1094 * application of the 802.3 formula 64 * (1 + addFragSize) - 4. To be called 1095 * by drivers which do not support programming the minimum fragment size to a 1096 * continuous range. Returns error on other fragment length values. 1097 */ 1098 static inline int ethtool_mm_frag_size_min_to_add(u32 val_min, u32 *val_add, 1099 struct netlink_ext_ack *extack) 1100 { 1101 u32 add_frag_size; 1102 1103 for (add_frag_size = 0; add_frag_size < 4; add_frag_size++) { 1104 if (ethtool_mm_frag_size_add_to_min(add_frag_size) == val_min) { 1105 *val_add = add_frag_size; 1106 return 0; 1107 } 1108 } 1109 1110 NL_SET_ERR_MSG_MOD(extack, 1111 "minFragSize required to be one of 60, 124, 188 or 252"); 1112 return -EINVAL; 1113 } 1114 1115 /** 1116 * ethtool_get_ts_info_by_layer - Obtains time stamping capabilities from the MAC or PHY layer. 1117 * @dev: pointer to net_device structure 1118 * @info: buffer to hold the result 1119 * Returns zero on success, non-zero otherwise. 1120 */ 1121 int ethtool_get_ts_info_by_layer(struct net_device *dev, struct ethtool_ts_info *info); 1122 1123 /** 1124 * ethtool_sprintf - Write formatted string to ethtool string data 1125 * @data: Pointer to a pointer to the start of string to update 1126 * @fmt: Format of string to write 1127 * 1128 * Write formatted string to *data. Update *data to point at start of 1129 * next string. 1130 */ 1131 extern __printf(2, 3) void ethtool_sprintf(u8 **data, const char *fmt, ...); 1132 1133 /** 1134 * ethtool_puts - Write string to ethtool string data 1135 * @data: Pointer to a pointer to the start of string to update 1136 * @str: String to write 1137 * 1138 * Write string to *data without a trailing newline. Update *data 1139 * to point at start of next string. 1140 * 1141 * Prefer this function to ethtool_sprintf() when given only 1142 * two arguments or if @fmt is just "%s". 1143 */ 1144 extern void ethtool_puts(u8 **data, const char *str); 1145 1146 /* Link mode to forced speed capabilities maps */ 1147 struct ethtool_forced_speed_map { 1148 u32 speed; 1149 __ETHTOOL_DECLARE_LINK_MODE_MASK(caps); 1150 1151 const u32 *cap_arr; 1152 u32 arr_size; 1153 }; 1154 1155 #define ETHTOOL_FORCED_SPEED_MAP(prefix, value) \ 1156 { \ 1157 .speed = SPEED_##value, \ 1158 .cap_arr = prefix##_##value, \ 1159 .arr_size = ARRAY_SIZE(prefix##_##value), \ 1160 } 1161 1162 void 1163 ethtool_forced_speed_maps_init(struct ethtool_forced_speed_map *maps, u32 size); 1164 #endif /* _LINUX_ETHTOOL_H */ 1165