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 * @cqe_size: Size of TX/RX completion queue event 77 */ 78 struct kernel_ethtool_ringparam { 79 u32 rx_buf_len; 80 u8 tcp_data_split; 81 u8 tx_push; 82 u32 cqe_size; 83 }; 84 85 /** 86 * enum ethtool_supported_ring_param - indicator caps for setting ring params 87 * @ETHTOOL_RING_USE_RX_BUF_LEN: capture for setting rx_buf_len 88 * @ETHTOOL_RING_USE_CQE_SIZE: capture for setting cqe_size 89 * @ETHTOOL_RING_USE_TX_PUSH: capture for setting tx_push 90 */ 91 enum ethtool_supported_ring_param { 92 ETHTOOL_RING_USE_RX_BUF_LEN = BIT(0), 93 ETHTOOL_RING_USE_CQE_SIZE = BIT(1), 94 ETHTOOL_RING_USE_TX_PUSH = BIT(2), 95 }; 96 97 #define __ETH_RSS_HASH_BIT(bit) ((u32)1 << (bit)) 98 #define __ETH_RSS_HASH(name) __ETH_RSS_HASH_BIT(ETH_RSS_HASH_##name##_BIT) 99 100 #define ETH_RSS_HASH_TOP __ETH_RSS_HASH(TOP) 101 #define ETH_RSS_HASH_XOR __ETH_RSS_HASH(XOR) 102 #define ETH_RSS_HASH_CRC32 __ETH_RSS_HASH(CRC32) 103 104 #define ETH_RSS_HASH_UNKNOWN 0 105 #define ETH_RSS_HASH_NO_CHANGE 0 106 107 struct net_device; 108 struct netlink_ext_ack; 109 110 /* Link extended state and substate. */ 111 struct ethtool_link_ext_state_info { 112 enum ethtool_link_ext_state link_ext_state; 113 union { 114 enum ethtool_link_ext_substate_autoneg autoneg; 115 enum ethtool_link_ext_substate_link_training link_training; 116 enum ethtool_link_ext_substate_link_logical_mismatch link_logical_mismatch; 117 enum ethtool_link_ext_substate_bad_signal_integrity bad_signal_integrity; 118 enum ethtool_link_ext_substate_cable_issue cable_issue; 119 enum ethtool_link_ext_substate_module module; 120 u32 __link_ext_substate; 121 }; 122 }; 123 124 struct ethtool_link_ext_stats { 125 /* Custom Linux statistic for PHY level link down events. 126 * In a simpler world it should be equal to netdev->carrier_down_count 127 * unfortunately netdev also counts local reconfigurations which don't 128 * actually take the physical link down, not to mention NC-SI which, 129 * if present, keeps the link up regardless of host state. 130 * This statistic counts when PHY _actually_ went down, or lost link. 131 * 132 * Note that we need u64 for ethtool_stats_init() and comparisons 133 * to ETHTOOL_STAT_NOT_SET, but only u32 is exposed to the user. 134 */ 135 u64 link_down_events; 136 }; 137 138 /** 139 * ethtool_rxfh_indir_default - get default value for RX flow hash indirection 140 * @index: Index in RX flow hash indirection table 141 * @n_rx_rings: Number of RX rings to use 142 * 143 * This function provides the default policy for RX flow hash indirection. 144 */ 145 static inline u32 ethtool_rxfh_indir_default(u32 index, u32 n_rx_rings) 146 { 147 return index % n_rx_rings; 148 } 149 150 /* declare a link mode bitmap */ 151 #define __ETHTOOL_DECLARE_LINK_MODE_MASK(name) \ 152 DECLARE_BITMAP(name, __ETHTOOL_LINK_MODE_MASK_NBITS) 153 154 /* drivers must ignore base.cmd and base.link_mode_masks_nwords 155 * fields, but they are allowed to overwrite them (will be ignored). 156 */ 157 struct ethtool_link_ksettings { 158 struct ethtool_link_settings base; 159 struct { 160 __ETHTOOL_DECLARE_LINK_MODE_MASK(supported); 161 __ETHTOOL_DECLARE_LINK_MODE_MASK(advertising); 162 __ETHTOOL_DECLARE_LINK_MODE_MASK(lp_advertising); 163 } link_modes; 164 u32 lanes; 165 }; 166 167 /** 168 * ethtool_link_ksettings_zero_link_mode - clear link_ksettings link mode mask 169 * @ptr : pointer to struct ethtool_link_ksettings 170 * @name : one of supported/advertising/lp_advertising 171 */ 172 #define ethtool_link_ksettings_zero_link_mode(ptr, name) \ 173 bitmap_zero((ptr)->link_modes.name, __ETHTOOL_LINK_MODE_MASK_NBITS) 174 175 /** 176 * ethtool_link_ksettings_add_link_mode - set bit in link_ksettings 177 * link mode mask 178 * @ptr : pointer to struct ethtool_link_ksettings 179 * @name : one of supported/advertising/lp_advertising 180 * @mode : one of the ETHTOOL_LINK_MODE_*_BIT 181 * (not atomic, no bound checking) 182 */ 183 #define ethtool_link_ksettings_add_link_mode(ptr, name, mode) \ 184 __set_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name) 185 186 /** 187 * ethtool_link_ksettings_del_link_mode - clear bit in link_ksettings 188 * 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 #define ethtool_link_ksettings_del_link_mode(ptr, name, mode) \ 195 __clear_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name) 196 197 /** 198 * ethtool_link_ksettings_test_link_mode - test bit in ksettings link mode mask 199 * @ptr : pointer to struct ethtool_link_ksettings 200 * @name : one of supported/advertising/lp_advertising 201 * @mode : one of the ETHTOOL_LINK_MODE_*_BIT 202 * (not atomic, no bound checking) 203 * 204 * Returns true/false. 205 */ 206 #define ethtool_link_ksettings_test_link_mode(ptr, name, mode) \ 207 test_bit(ETHTOOL_LINK_MODE_ ## mode ## _BIT, (ptr)->link_modes.name) 208 209 extern int 210 __ethtool_get_link_ksettings(struct net_device *dev, 211 struct ethtool_link_ksettings *link_ksettings); 212 213 struct kernel_ethtool_coalesce { 214 u8 use_cqe_mode_tx; 215 u8 use_cqe_mode_rx; 216 u32 tx_aggr_max_bytes; 217 u32 tx_aggr_max_frames; 218 u32 tx_aggr_time_usecs; 219 }; 220 221 /** 222 * ethtool_intersect_link_masks - Given two link masks, AND them together 223 * @dst: first mask and where result is stored 224 * @src: second mask to intersect with 225 * 226 * Given two link mode masks, AND them together and save the result in dst. 227 */ 228 void ethtool_intersect_link_masks(struct ethtool_link_ksettings *dst, 229 struct ethtool_link_ksettings *src); 230 231 void ethtool_convert_legacy_u32_to_link_mode(unsigned long *dst, 232 u32 legacy_u32); 233 234 /* return false if src had higher bits set. lower bits always updated. */ 235 bool ethtool_convert_link_mode_to_legacy_u32(u32 *legacy_u32, 236 const unsigned long *src); 237 238 #define ETHTOOL_COALESCE_RX_USECS BIT(0) 239 #define ETHTOOL_COALESCE_RX_MAX_FRAMES BIT(1) 240 #define ETHTOOL_COALESCE_RX_USECS_IRQ BIT(2) 241 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ BIT(3) 242 #define ETHTOOL_COALESCE_TX_USECS BIT(4) 243 #define ETHTOOL_COALESCE_TX_MAX_FRAMES BIT(5) 244 #define ETHTOOL_COALESCE_TX_USECS_IRQ BIT(6) 245 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ BIT(7) 246 #define ETHTOOL_COALESCE_STATS_BLOCK_USECS BIT(8) 247 #define ETHTOOL_COALESCE_USE_ADAPTIVE_RX BIT(9) 248 #define ETHTOOL_COALESCE_USE_ADAPTIVE_TX BIT(10) 249 #define ETHTOOL_COALESCE_PKT_RATE_LOW BIT(11) 250 #define ETHTOOL_COALESCE_RX_USECS_LOW BIT(12) 251 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW BIT(13) 252 #define ETHTOOL_COALESCE_TX_USECS_LOW BIT(14) 253 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW BIT(15) 254 #define ETHTOOL_COALESCE_PKT_RATE_HIGH BIT(16) 255 #define ETHTOOL_COALESCE_RX_USECS_HIGH BIT(17) 256 #define ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH BIT(18) 257 #define ETHTOOL_COALESCE_TX_USECS_HIGH BIT(19) 258 #define ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH BIT(20) 259 #define ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL BIT(21) 260 #define ETHTOOL_COALESCE_USE_CQE_RX BIT(22) 261 #define ETHTOOL_COALESCE_USE_CQE_TX BIT(23) 262 #define ETHTOOL_COALESCE_TX_AGGR_MAX_BYTES BIT(24) 263 #define ETHTOOL_COALESCE_TX_AGGR_MAX_FRAMES BIT(25) 264 #define ETHTOOL_COALESCE_TX_AGGR_TIME_USECS BIT(26) 265 #define ETHTOOL_COALESCE_ALL_PARAMS GENMASK(26, 0) 266 267 #define ETHTOOL_COALESCE_USECS \ 268 (ETHTOOL_COALESCE_RX_USECS | ETHTOOL_COALESCE_TX_USECS) 269 #define ETHTOOL_COALESCE_MAX_FRAMES \ 270 (ETHTOOL_COALESCE_RX_MAX_FRAMES | ETHTOOL_COALESCE_TX_MAX_FRAMES) 271 #define ETHTOOL_COALESCE_USECS_IRQ \ 272 (ETHTOOL_COALESCE_RX_USECS_IRQ | ETHTOOL_COALESCE_TX_USECS_IRQ) 273 #define ETHTOOL_COALESCE_MAX_FRAMES_IRQ \ 274 (ETHTOOL_COALESCE_RX_MAX_FRAMES_IRQ | \ 275 ETHTOOL_COALESCE_TX_MAX_FRAMES_IRQ) 276 #define ETHTOOL_COALESCE_USE_ADAPTIVE \ 277 (ETHTOOL_COALESCE_USE_ADAPTIVE_RX | ETHTOOL_COALESCE_USE_ADAPTIVE_TX) 278 #define ETHTOOL_COALESCE_USECS_LOW_HIGH \ 279 (ETHTOOL_COALESCE_RX_USECS_LOW | ETHTOOL_COALESCE_TX_USECS_LOW | \ 280 ETHTOOL_COALESCE_RX_USECS_HIGH | ETHTOOL_COALESCE_TX_USECS_HIGH) 281 #define ETHTOOL_COALESCE_MAX_FRAMES_LOW_HIGH \ 282 (ETHTOOL_COALESCE_RX_MAX_FRAMES_LOW | \ 283 ETHTOOL_COALESCE_TX_MAX_FRAMES_LOW | \ 284 ETHTOOL_COALESCE_RX_MAX_FRAMES_HIGH | \ 285 ETHTOOL_COALESCE_TX_MAX_FRAMES_HIGH) 286 #define ETHTOOL_COALESCE_PKT_RATE_RX_USECS \ 287 (ETHTOOL_COALESCE_USE_ADAPTIVE_RX | \ 288 ETHTOOL_COALESCE_RX_USECS_LOW | ETHTOOL_COALESCE_RX_USECS_HIGH | \ 289 ETHTOOL_COALESCE_PKT_RATE_LOW | ETHTOOL_COALESCE_PKT_RATE_HIGH | \ 290 ETHTOOL_COALESCE_RATE_SAMPLE_INTERVAL) 291 #define ETHTOOL_COALESCE_USE_CQE \ 292 (ETHTOOL_COALESCE_USE_CQE_RX | ETHTOOL_COALESCE_USE_CQE_TX) 293 #define ETHTOOL_COALESCE_TX_AGGR \ 294 (ETHTOOL_COALESCE_TX_AGGR_MAX_BYTES | \ 295 ETHTOOL_COALESCE_TX_AGGR_MAX_FRAMES | \ 296 ETHTOOL_COALESCE_TX_AGGR_TIME_USECS) 297 298 #define ETHTOOL_STAT_NOT_SET (~0ULL) 299 300 static inline void ethtool_stats_init(u64 *stats, unsigned int n) 301 { 302 while (n--) 303 stats[n] = ETHTOOL_STAT_NOT_SET; 304 } 305 306 /* Basic IEEE 802.3 MAC statistics (30.3.1.1.*), not otherwise exposed 307 * via a more targeted API. 308 */ 309 struct ethtool_eth_mac_stats { 310 enum ethtool_mac_stats_src src; 311 struct_group(stats, 312 u64 FramesTransmittedOK; 313 u64 SingleCollisionFrames; 314 u64 MultipleCollisionFrames; 315 u64 FramesReceivedOK; 316 u64 FrameCheckSequenceErrors; 317 u64 AlignmentErrors; 318 u64 OctetsTransmittedOK; 319 u64 FramesWithDeferredXmissions; 320 u64 LateCollisions; 321 u64 FramesAbortedDueToXSColls; 322 u64 FramesLostDueToIntMACXmitError; 323 u64 CarrierSenseErrors; 324 u64 OctetsReceivedOK; 325 u64 FramesLostDueToIntMACRcvError; 326 u64 MulticastFramesXmittedOK; 327 u64 BroadcastFramesXmittedOK; 328 u64 FramesWithExcessiveDeferral; 329 u64 MulticastFramesReceivedOK; 330 u64 BroadcastFramesReceivedOK; 331 u64 InRangeLengthErrors; 332 u64 OutOfRangeLengthField; 333 u64 FrameTooLongErrors; 334 ); 335 }; 336 337 /* Basic IEEE 802.3 PHY statistics (30.3.2.1.*), not otherwise exposed 338 * via a more targeted API. 339 */ 340 struct ethtool_eth_phy_stats { 341 enum ethtool_mac_stats_src src; 342 struct_group(stats, 343 u64 SymbolErrorDuringCarrier; 344 ); 345 }; 346 347 /* Basic IEEE 802.3 MAC Ctrl statistics (30.3.3.*), not otherwise exposed 348 * via a more targeted API. 349 */ 350 struct ethtool_eth_ctrl_stats { 351 enum ethtool_mac_stats_src src; 352 struct_group(stats, 353 u64 MACControlFramesTransmitted; 354 u64 MACControlFramesReceived; 355 u64 UnsupportedOpcodesReceived; 356 ); 357 }; 358 359 /** 360 * struct ethtool_pause_stats - statistics for IEEE 802.3x pause frames 361 * @src: input field denoting whether stats should be queried from the eMAC or 362 * pMAC (if the MM layer is supported). To be ignored otherwise. 363 * @tx_pause_frames: transmitted pause frame count. Reported to user space 364 * as %ETHTOOL_A_PAUSE_STAT_TX_FRAMES. 365 * 366 * Equivalent to `30.3.4.2 aPAUSEMACCtrlFramesTransmitted` 367 * from the standard. 368 * 369 * @rx_pause_frames: received pause frame count. Reported to user space 370 * as %ETHTOOL_A_PAUSE_STAT_RX_FRAMES. Equivalent to: 371 * 372 * Equivalent to `30.3.4.3 aPAUSEMACCtrlFramesReceived` 373 * from the standard. 374 */ 375 struct ethtool_pause_stats { 376 enum ethtool_mac_stats_src src; 377 struct_group(stats, 378 u64 tx_pause_frames; 379 u64 rx_pause_frames; 380 ); 381 }; 382 383 #define ETHTOOL_MAX_LANES 8 384 385 /** 386 * struct ethtool_fec_stats - statistics for IEEE 802.3 FEC 387 * @corrected_blocks: number of received blocks corrected by FEC 388 * Reported to user space as %ETHTOOL_A_FEC_STAT_CORRECTED. 389 * 390 * Equivalent to `30.5.1.1.17 aFECCorrectedBlocks` from the standard. 391 * 392 * @uncorrectable_blocks: number of received blocks FEC was not able to correct 393 * Reported to user space as %ETHTOOL_A_FEC_STAT_UNCORR. 394 * 395 * Equivalent to `30.5.1.1.18 aFECUncorrectableBlocks` from the standard. 396 * 397 * @corrected_bits: number of bits corrected by FEC 398 * Similar to @corrected_blocks but counts individual bit changes, 399 * not entire FEC data blocks. This is a non-standard statistic. 400 * Reported to user space as %ETHTOOL_A_FEC_STAT_CORR_BITS. 401 * 402 * @lane: per-lane/PCS-instance counts as defined by the standard 403 * @total: error counts for the entire port, for drivers incapable of reporting 404 * per-lane stats 405 * 406 * Drivers should fill in either only total or per-lane statistics, core 407 * will take care of adding lane values up to produce the total. 408 */ 409 struct ethtool_fec_stats { 410 struct ethtool_fec_stat { 411 u64 total; 412 u64 lanes[ETHTOOL_MAX_LANES]; 413 } corrected_blocks, uncorrectable_blocks, corrected_bits; 414 }; 415 416 /** 417 * struct ethtool_rmon_hist_range - byte range for histogram statistics 418 * @low: low bound of the bucket (inclusive) 419 * @high: high bound of the bucket (inclusive) 420 */ 421 struct ethtool_rmon_hist_range { 422 u16 low; 423 u16 high; 424 }; 425 426 #define ETHTOOL_RMON_HIST_MAX 10 427 428 /** 429 * struct ethtool_rmon_stats - selected RMON (RFC 2819) statistics 430 * @src: input field denoting whether stats should be queried from the eMAC or 431 * pMAC (if the MM layer is supported). To be ignored otherwise. 432 * @undersize_pkts: Equivalent to `etherStatsUndersizePkts` from the RFC. 433 * @oversize_pkts: Equivalent to `etherStatsOversizePkts` from the RFC. 434 * @fragments: Equivalent to `etherStatsFragments` from the RFC. 435 * @jabbers: Equivalent to `etherStatsJabbers` from the RFC. 436 * @hist: Packet counter for packet length buckets (e.g. 437 * `etherStatsPkts128to255Octets` from the RFC). 438 * @hist_tx: Tx counters in similar form to @hist, not defined in the RFC. 439 * 440 * Selection of RMON (RFC 2819) statistics which are not exposed via different 441 * APIs, primarily the packet-length-based counters. 442 * Unfortunately different designs choose different buckets beyond 443 * the 1024B mark (jumbo frame teritory), so the definition of the bucket 444 * ranges is left to the driver. 445 */ 446 struct ethtool_rmon_stats { 447 enum ethtool_mac_stats_src src; 448 struct_group(stats, 449 u64 undersize_pkts; 450 u64 oversize_pkts; 451 u64 fragments; 452 u64 jabbers; 453 454 u64 hist[ETHTOOL_RMON_HIST_MAX]; 455 u64 hist_tx[ETHTOOL_RMON_HIST_MAX]; 456 ); 457 }; 458 459 #define ETH_MODULE_EEPROM_PAGE_LEN 128 460 #define ETH_MODULE_MAX_I2C_ADDRESS 0x7f 461 462 /** 463 * struct ethtool_module_eeprom - EEPROM dump from specified page 464 * @offset: Offset within the specified EEPROM page to begin read, in bytes. 465 * @length: Number of bytes to read. 466 * @page: Page number to read from. 467 * @bank: Page bank number to read from, if applicable by EEPROM spec. 468 * @i2c_address: I2C address of a page. Value less than 0x7f expected. Most 469 * EEPROMs use 0x50 or 0x51. 470 * @data: Pointer to buffer with EEPROM data of @length size. 471 * 472 * This can be used to manage pages during EEPROM dump in ethtool and pass 473 * required information to the driver. 474 */ 475 struct ethtool_module_eeprom { 476 u32 offset; 477 u32 length; 478 u8 page; 479 u8 bank; 480 u8 i2c_address; 481 u8 *data; 482 }; 483 484 /** 485 * struct ethtool_module_power_mode_params - module power mode parameters 486 * @policy: The power mode policy enforced by the host for the plug-in module. 487 * @mode: The operational power mode of the plug-in module. Should be filled by 488 * device drivers on get operations. 489 */ 490 struct ethtool_module_power_mode_params { 491 enum ethtool_module_power_mode_policy policy; 492 enum ethtool_module_power_mode mode; 493 }; 494 495 /** 496 * struct ethtool_mm_state - 802.3 MAC merge layer state 497 * @verify_time: 498 * wait time between verification attempts in ms (according to clause 499 * 30.14.1.6 aMACMergeVerifyTime) 500 * @max_verify_time: 501 * maximum accepted value for the @verify_time variable in set requests 502 * @verify_status: 503 * state of the verification state machine of the MM layer (according to 504 * clause 30.14.1.2 aMACMergeStatusVerify) 505 * @tx_enabled: 506 * set if the MM layer is administratively enabled in the TX direction 507 * (according to clause 30.14.1.3 aMACMergeEnableTx) 508 * @tx_active: 509 * set if the MM layer is enabled in the TX direction, which makes FP 510 * possible (according to 30.14.1.5 aMACMergeStatusTx). This should be 511 * true if MM is enabled, and the verification status is either verified, 512 * or disabled. 513 * @pmac_enabled: 514 * set if the preemptible MAC is powered on and is able to receive 515 * preemptible packets and respond to verification frames. 516 * @verify_enabled: 517 * set if the Verify function of the MM layer (which sends SMD-V 518 * verification requests) is administratively enabled (regardless of 519 * whether it is currently in the ETHTOOL_MM_VERIFY_STATUS_DISABLED state 520 * or not), according to clause 30.14.1.4 aMACMergeVerifyDisableTx (but 521 * using positive rather than negative logic). The device should always 522 * respond to received SMD-V requests as long as @pmac_enabled is set. 523 * @tx_min_frag_size: 524 * the minimum size of non-final mPacket fragments that the link partner 525 * supports receiving, expressed in octets. Compared to the definition 526 * from clause 30.14.1.7 aMACMergeAddFragSize which is expressed in the 527 * range 0 to 3 (requiring a translation to the size in octets according 528 * to the formula 64 * (1 + addFragSize) - 4), a value in a continuous and 529 * unbounded range can be specified here. 530 * @rx_min_frag_size: 531 * the minimum size of non-final mPacket fragments that this device 532 * supports receiving, expressed in octets. 533 */ 534 struct ethtool_mm_state { 535 u32 verify_time; 536 u32 max_verify_time; 537 enum ethtool_mm_verify_status verify_status; 538 bool tx_enabled; 539 bool tx_active; 540 bool pmac_enabled; 541 bool verify_enabled; 542 u32 tx_min_frag_size; 543 u32 rx_min_frag_size; 544 }; 545 546 /** 547 * struct ethtool_mm_cfg - 802.3 MAC merge layer configuration 548 * @verify_time: see struct ethtool_mm_state 549 * @verify_enabled: see struct ethtool_mm_state 550 * @tx_enabled: see struct ethtool_mm_state 551 * @pmac_enabled: see struct ethtool_mm_state 552 * @tx_min_frag_size: see struct ethtool_mm_state 553 */ 554 struct ethtool_mm_cfg { 555 u32 verify_time; 556 bool verify_enabled; 557 bool tx_enabled; 558 bool pmac_enabled; 559 u32 tx_min_frag_size; 560 }; 561 562 /** 563 * struct ethtool_mm_stats - 802.3 MAC merge layer statistics 564 * @MACMergeFrameAssErrorCount: 565 * received MAC frames with reassembly errors 566 * @MACMergeFrameSmdErrorCount: 567 * received MAC frames/fragments rejected due to unknown or incorrect SMD 568 * @MACMergeFrameAssOkCount: 569 * received MAC frames that were successfully reassembled and passed up 570 * @MACMergeFragCountRx: 571 * number of additional correct SMD-C mPackets received due to preemption 572 * @MACMergeFragCountTx: 573 * number of additional mPackets sent due to preemption 574 * @MACMergeHoldCount: 575 * number of times the MM layer entered the HOLD state, which blocks 576 * transmission of preemptible traffic 577 */ 578 struct ethtool_mm_stats { 579 u64 MACMergeFrameAssErrorCount; 580 u64 MACMergeFrameSmdErrorCount; 581 u64 MACMergeFrameAssOkCount; 582 u64 MACMergeFragCountRx; 583 u64 MACMergeFragCountTx; 584 u64 MACMergeHoldCount; 585 }; 586 587 /** 588 * struct ethtool_ops - optional netdev operations 589 * @cap_link_lanes_supported: indicates if the driver supports lanes 590 * parameter. 591 * @supported_coalesce_params: supported types of interrupt coalescing. 592 * @supported_ring_params: supported ring params. 593 * @get_drvinfo: Report driver/device information. Modern drivers no 594 * longer have to implement this callback. Most fields are 595 * correctly filled in by the core using system information, or 596 * populated using other driver operations. 597 * @get_regs_len: Get buffer length required for @get_regs 598 * @get_regs: Get device registers 599 * @get_wol: Report whether Wake-on-Lan is enabled 600 * @set_wol: Turn Wake-on-Lan on or off. Returns a negative error code 601 * or zero. 602 * @get_msglevel: Report driver message level. This should be the value 603 * of the @msg_enable field used by netif logging functions. 604 * @set_msglevel: Set driver message level 605 * @nway_reset: Restart autonegotiation. Returns a negative error code 606 * or zero. 607 * @get_link: Report whether physical link is up. Will only be called if 608 * the netdev is up. Should usually be set to ethtool_op_get_link(), 609 * which uses netif_carrier_ok(). 610 * @get_link_ext_state: Report link extended state. Should set link_ext_state and 611 * link_ext_substate (link_ext_substate of 0 means link_ext_substate is unknown, 612 * do not attach ext_substate attribute to netlink message). If link_ext_state 613 * and link_ext_substate are unknown, return -ENODATA. If not implemented, 614 * link_ext_state and link_ext_substate will not be sent to userspace. 615 * @get_link_ext_stats: Read extra link-related counters. 616 * @get_eeprom_len: Read range of EEPROM addresses for validation of 617 * @get_eeprom and @set_eeprom requests. 618 * Returns 0 if device does not support EEPROM access. 619 * @get_eeprom: Read data from the device EEPROM. 620 * Should fill in the magic field. Don't need to check len for zero 621 * or wraparound. Fill in the data argument with the eeprom values 622 * from offset to offset + len. Update len to the amount read. 623 * Returns an error or zero. 624 * @set_eeprom: Write data to the device EEPROM. 625 * Should validate the magic field. Don't need to check len for zero 626 * or wraparound. Update len to the amount written. Returns an error 627 * or zero. 628 * @get_coalesce: Get interrupt coalescing parameters. Returns a negative 629 * error code or zero. 630 * @set_coalesce: Set interrupt coalescing parameters. Supported coalescing 631 * types should be set in @supported_coalesce_params. 632 * Returns a negative error code or zero. 633 * @get_ringparam: Report ring sizes 634 * @set_ringparam: Set ring sizes. Returns a negative error code or zero. 635 * @get_pause_stats: Report pause frame statistics. Drivers must not zero 636 * statistics which they don't report. The stats structure is initialized 637 * to ETHTOOL_STAT_NOT_SET indicating driver does not report statistics. 638 * @get_pauseparam: Report pause parameters 639 * @set_pauseparam: Set pause parameters. Returns a negative error code 640 * or zero. 641 * @self_test: Run specified self-tests 642 * @get_strings: Return a set of strings that describe the requested objects 643 * @set_phys_id: Identify the physical devices, e.g. by flashing an LED 644 * attached to it. The implementation may update the indicator 645 * asynchronously or synchronously, but in either case it must return 646 * quickly. It is initially called with the argument %ETHTOOL_ID_ACTIVE, 647 * and must either activate asynchronous updates and return zero, return 648 * a negative error or return a positive frequency for synchronous 649 * indication (e.g. 1 for one on/off cycle per second). If it returns 650 * a frequency then it will be called again at intervals with the 651 * argument %ETHTOOL_ID_ON or %ETHTOOL_ID_OFF and should set the state of 652 * the indicator accordingly. Finally, it is called with the argument 653 * %ETHTOOL_ID_INACTIVE and must deactivate the indicator. Returns a 654 * negative error code or zero. 655 * @get_ethtool_stats: Return extended statistics about the device. 656 * This is only useful if the device maintains statistics not 657 * included in &struct rtnl_link_stats64. 658 * @begin: Function to be called before any other operation. Returns a 659 * negative error code or zero. 660 * @complete: Function to be called after any other operation except 661 * @begin. Will be called even if the other operation failed. 662 * @get_priv_flags: Report driver-specific feature flags. 663 * @set_priv_flags: Set driver-specific feature flags. Returns a negative 664 * error code or zero. 665 * @get_sset_count: Get number of strings that @get_strings will write. 666 * @get_rxnfc: Get RX flow classification rules. Returns a negative 667 * error code or zero. 668 * @set_rxnfc: Set RX flow classification rules. Returns a negative 669 * error code or zero. 670 * @flash_device: Write a firmware image to device's flash memory. 671 * Returns a negative error code or zero. 672 * @reset: Reset (part of) the device, as specified by a bitmask of 673 * flags from &enum ethtool_reset_flags. Returns a negative 674 * error code or zero. 675 * @get_rxfh_key_size: Get the size of the RX flow hash key. 676 * Returns zero if not supported for this specific device. 677 * @get_rxfh_indir_size: Get the size of the RX flow hash indirection table. 678 * Returns zero if not supported for this specific device. 679 * @get_rxfh: Get the contents of the RX flow hash indirection table, hash key 680 * and/or hash function. 681 * Returns a negative error code or zero. 682 * @set_rxfh: Set the contents of the RX flow hash indirection table, hash 683 * key, and/or hash function. Arguments which are set to %NULL or zero 684 * will remain unchanged. 685 * Returns a negative error code or zero. An error code must be returned 686 * if at least one unsupported change was requested. 687 * @get_rxfh_context: Get the contents of the RX flow hash indirection table, 688 * hash key, and/or hash function assiciated to the given rss context. 689 * Returns a negative error code or zero. 690 * @set_rxfh_context: Create, remove and configure RSS contexts. Allows setting 691 * the contents of the RX flow hash indirection table, hash key, and/or 692 * hash function associated to the given context. Arguments which are set 693 * to %NULL or zero will remain unchanged. 694 * Returns a negative error code or zero. An error code must be returned 695 * if at least one unsupported change was requested. 696 * @get_channels: Get number of channels. 697 * @set_channels: Set number of channels. Returns a negative error code or 698 * zero. 699 * @get_dump_flag: Get dump flag indicating current dump length, version, 700 * and flag of the device. 701 * @get_dump_data: Get dump data. 702 * @set_dump: Set dump specific flags to the device. 703 * @get_ts_info: Get the time stamping and PTP hardware clock capabilities. 704 * Drivers supporting transmit time stamps in software should set this to 705 * ethtool_op_get_ts_info(). 706 * @get_module_info: Get the size and type of the eeprom contained within 707 * a plug-in module. 708 * @get_module_eeprom: Get the eeprom information from the plug-in module 709 * @get_eee: Get Energy-Efficient (EEE) supported and status. 710 * @set_eee: Set EEE status (enable/disable) as well as LPI timers. 711 * @get_tunable: Read the value of a driver / device tunable. 712 * @set_tunable: Set the value of a driver / device tunable. 713 * @get_per_queue_coalesce: Get interrupt coalescing parameters per queue. 714 * It must check that the given queue number is valid. If neither a RX nor 715 * a TX queue has this number, return -EINVAL. If only a RX queue or a TX 716 * queue has this number, set the inapplicable fields to ~0 and return 0. 717 * Returns a negative error code or zero. 718 * @set_per_queue_coalesce: Set interrupt coalescing parameters per queue. 719 * It must check that the given queue number is valid. If neither a RX nor 720 * a TX queue has this number, return -EINVAL. If only a RX queue or a TX 721 * queue has this number, ignore the inapplicable fields. Supported 722 * coalescing types should be set in @supported_coalesce_params. 723 * Returns a negative error code or zero. 724 * @get_link_ksettings: Get various device settings including Ethernet link 725 * settings. The %cmd and %link_mode_masks_nwords fields should be 726 * ignored (use %__ETHTOOL_LINK_MODE_MASK_NBITS instead of the latter), 727 * any change to them will be overwritten by kernel. Returns a negative 728 * error code or zero. 729 * @set_link_ksettings: Set various device settings including Ethernet link 730 * settings. The %cmd and %link_mode_masks_nwords fields should be 731 * ignored (use %__ETHTOOL_LINK_MODE_MASK_NBITS instead of the latter), 732 * any change to them will be overwritten by kernel. Returns a negative 733 * error code or zero. 734 * @get_fec_stats: Report FEC statistics. 735 * Core will sum up per-lane stats to get the total. 736 * Drivers must not zero statistics which they don't report. The stats 737 * structure is initialized to ETHTOOL_STAT_NOT_SET indicating driver does 738 * not report statistics. 739 * @get_fecparam: Get the network device Forward Error Correction parameters. 740 * @set_fecparam: Set the network device Forward Error Correction parameters. 741 * @get_ethtool_phy_stats: Return extended statistics about the PHY device. 742 * This is only useful if the device maintains PHY statistics and 743 * cannot use the standard PHY library helpers. 744 * @get_phy_tunable: Read the value of a PHY tunable. 745 * @set_phy_tunable: Set the value of a PHY tunable. 746 * @get_module_eeprom_by_page: Get a region of plug-in module EEPROM data from 747 * specified page. Returns a negative error code or the amount of bytes 748 * read. 749 * @get_eth_phy_stats: Query some of the IEEE 802.3 PHY statistics. 750 * @get_eth_mac_stats: Query some of the IEEE 802.3 MAC statistics. 751 * @get_eth_ctrl_stats: Query some of the IEEE 802.3 MAC Ctrl statistics. 752 * @get_rmon_stats: Query some of the RMON (RFC 2819) statistics. 753 * Set %ranges to a pointer to zero-terminated array of byte ranges. 754 * @get_module_power_mode: Get the power mode policy for the plug-in module 755 * used by the network device and its operational power mode, if 756 * plugged-in. 757 * @set_module_power_mode: Set the power mode policy for the plug-in module 758 * used by the network device. 759 * @get_mm: Query the 802.3 MAC Merge layer state. 760 * @set_mm: Set the 802.3 MAC Merge layer parameters. 761 * @get_mm_stats: Query the 802.3 MAC Merge layer statistics. 762 * 763 * All operations are optional (i.e. the function pointer may be set 764 * to %NULL) and callers must take this into account. Callers must 765 * hold the RTNL lock. 766 * 767 * See the structures used by these operations for further documentation. 768 * Note that for all operations using a structure ending with a zero- 769 * length array, the array is allocated separately in the kernel and 770 * is passed to the driver as an additional parameter. 771 * 772 * See &struct net_device and &struct net_device_ops for documentation 773 * of the generic netdev features interface. 774 */ 775 struct ethtool_ops { 776 u32 cap_link_lanes_supported:1; 777 u32 supported_coalesce_params; 778 u32 supported_ring_params; 779 void (*get_drvinfo)(struct net_device *, struct ethtool_drvinfo *); 780 int (*get_regs_len)(struct net_device *); 781 void (*get_regs)(struct net_device *, struct ethtool_regs *, void *); 782 void (*get_wol)(struct net_device *, struct ethtool_wolinfo *); 783 int (*set_wol)(struct net_device *, struct ethtool_wolinfo *); 784 u32 (*get_msglevel)(struct net_device *); 785 void (*set_msglevel)(struct net_device *, u32); 786 int (*nway_reset)(struct net_device *); 787 u32 (*get_link)(struct net_device *); 788 int (*get_link_ext_state)(struct net_device *, 789 struct ethtool_link_ext_state_info *); 790 void (*get_link_ext_stats)(struct net_device *dev, 791 struct ethtool_link_ext_stats *stats); 792 int (*get_eeprom_len)(struct net_device *); 793 int (*get_eeprom)(struct net_device *, 794 struct ethtool_eeprom *, u8 *); 795 int (*set_eeprom)(struct net_device *, 796 struct ethtool_eeprom *, u8 *); 797 int (*get_coalesce)(struct net_device *, 798 struct ethtool_coalesce *, 799 struct kernel_ethtool_coalesce *, 800 struct netlink_ext_ack *); 801 int (*set_coalesce)(struct net_device *, 802 struct ethtool_coalesce *, 803 struct kernel_ethtool_coalesce *, 804 struct netlink_ext_ack *); 805 void (*get_ringparam)(struct net_device *, 806 struct ethtool_ringparam *, 807 struct kernel_ethtool_ringparam *, 808 struct netlink_ext_ack *); 809 int (*set_ringparam)(struct net_device *, 810 struct ethtool_ringparam *, 811 struct kernel_ethtool_ringparam *, 812 struct netlink_ext_ack *); 813 void (*get_pause_stats)(struct net_device *dev, 814 struct ethtool_pause_stats *pause_stats); 815 void (*get_pauseparam)(struct net_device *, 816 struct ethtool_pauseparam*); 817 int (*set_pauseparam)(struct net_device *, 818 struct ethtool_pauseparam*); 819 void (*self_test)(struct net_device *, struct ethtool_test *, u64 *); 820 void (*get_strings)(struct net_device *, u32 stringset, u8 *); 821 int (*set_phys_id)(struct net_device *, enum ethtool_phys_id_state); 822 void (*get_ethtool_stats)(struct net_device *, 823 struct ethtool_stats *, u64 *); 824 int (*begin)(struct net_device *); 825 void (*complete)(struct net_device *); 826 u32 (*get_priv_flags)(struct net_device *); 827 int (*set_priv_flags)(struct net_device *, u32); 828 int (*get_sset_count)(struct net_device *, int); 829 int (*get_rxnfc)(struct net_device *, 830 struct ethtool_rxnfc *, u32 *rule_locs); 831 int (*set_rxnfc)(struct net_device *, struct ethtool_rxnfc *); 832 int (*flash_device)(struct net_device *, struct ethtool_flash *); 833 int (*reset)(struct net_device *, u32 *); 834 u32 (*get_rxfh_key_size)(struct net_device *); 835 u32 (*get_rxfh_indir_size)(struct net_device *); 836 int (*get_rxfh)(struct net_device *, u32 *indir, u8 *key, 837 u8 *hfunc); 838 int (*set_rxfh)(struct net_device *, const u32 *indir, 839 const u8 *key, const u8 hfunc); 840 int (*get_rxfh_context)(struct net_device *, u32 *indir, u8 *key, 841 u8 *hfunc, u32 rss_context); 842 int (*set_rxfh_context)(struct net_device *, const u32 *indir, 843 const u8 *key, const u8 hfunc, 844 u32 *rss_context, bool delete); 845 void (*get_channels)(struct net_device *, struct ethtool_channels *); 846 int (*set_channels)(struct net_device *, struct ethtool_channels *); 847 int (*get_dump_flag)(struct net_device *, struct ethtool_dump *); 848 int (*get_dump_data)(struct net_device *, 849 struct ethtool_dump *, void *); 850 int (*set_dump)(struct net_device *, struct ethtool_dump *); 851 int (*get_ts_info)(struct net_device *, struct ethtool_ts_info *); 852 int (*get_module_info)(struct net_device *, 853 struct ethtool_modinfo *); 854 int (*get_module_eeprom)(struct net_device *, 855 struct ethtool_eeprom *, u8 *); 856 int (*get_eee)(struct net_device *, struct ethtool_eee *); 857 int (*set_eee)(struct net_device *, struct ethtool_eee *); 858 int (*get_tunable)(struct net_device *, 859 const struct ethtool_tunable *, void *); 860 int (*set_tunable)(struct net_device *, 861 const struct ethtool_tunable *, const void *); 862 int (*get_per_queue_coalesce)(struct net_device *, u32, 863 struct ethtool_coalesce *); 864 int (*set_per_queue_coalesce)(struct net_device *, u32, 865 struct ethtool_coalesce *); 866 int (*get_link_ksettings)(struct net_device *, 867 struct ethtool_link_ksettings *); 868 int (*set_link_ksettings)(struct net_device *, 869 const struct ethtool_link_ksettings *); 870 void (*get_fec_stats)(struct net_device *dev, 871 struct ethtool_fec_stats *fec_stats); 872 int (*get_fecparam)(struct net_device *, 873 struct ethtool_fecparam *); 874 int (*set_fecparam)(struct net_device *, 875 struct ethtool_fecparam *); 876 void (*get_ethtool_phy_stats)(struct net_device *, 877 struct ethtool_stats *, u64 *); 878 int (*get_phy_tunable)(struct net_device *, 879 const struct ethtool_tunable *, void *); 880 int (*set_phy_tunable)(struct net_device *, 881 const struct ethtool_tunable *, const void *); 882 int (*get_module_eeprom_by_page)(struct net_device *dev, 883 const struct ethtool_module_eeprom *page, 884 struct netlink_ext_ack *extack); 885 void (*get_eth_phy_stats)(struct net_device *dev, 886 struct ethtool_eth_phy_stats *phy_stats); 887 void (*get_eth_mac_stats)(struct net_device *dev, 888 struct ethtool_eth_mac_stats *mac_stats); 889 void (*get_eth_ctrl_stats)(struct net_device *dev, 890 struct ethtool_eth_ctrl_stats *ctrl_stats); 891 void (*get_rmon_stats)(struct net_device *dev, 892 struct ethtool_rmon_stats *rmon_stats, 893 const struct ethtool_rmon_hist_range **ranges); 894 int (*get_module_power_mode)(struct net_device *dev, 895 struct ethtool_module_power_mode_params *params, 896 struct netlink_ext_ack *extack); 897 int (*set_module_power_mode)(struct net_device *dev, 898 const struct ethtool_module_power_mode_params *params, 899 struct netlink_ext_ack *extack); 900 int (*get_mm)(struct net_device *dev, struct ethtool_mm_state *state); 901 int (*set_mm)(struct net_device *dev, struct ethtool_mm_cfg *cfg, 902 struct netlink_ext_ack *extack); 903 void (*get_mm_stats)(struct net_device *dev, struct ethtool_mm_stats *stats); 904 }; 905 906 int ethtool_check_ops(const struct ethtool_ops *ops); 907 908 struct ethtool_rx_flow_rule { 909 struct flow_rule *rule; 910 unsigned long priv[]; 911 }; 912 913 struct ethtool_rx_flow_spec_input { 914 const struct ethtool_rx_flow_spec *fs; 915 u32 rss_ctx; 916 }; 917 918 struct ethtool_rx_flow_rule * 919 ethtool_rx_flow_rule_create(const struct ethtool_rx_flow_spec_input *input); 920 void ethtool_rx_flow_rule_destroy(struct ethtool_rx_flow_rule *rule); 921 922 bool ethtool_virtdev_validate_cmd(const struct ethtool_link_ksettings *cmd); 923 int ethtool_virtdev_set_link_ksettings(struct net_device *dev, 924 const struct ethtool_link_ksettings *cmd, 925 u32 *dev_speed, u8 *dev_duplex); 926 927 struct phy_device; 928 struct phy_tdr_config; 929 struct phy_plca_cfg; 930 struct phy_plca_status; 931 932 /** 933 * struct ethtool_phy_ops - Optional PHY device options 934 * @get_sset_count: Get number of strings that @get_strings will write. 935 * @get_strings: Return a set of strings that describe the requested objects 936 * @get_stats: Return extended statistics about the PHY device. 937 * @get_plca_cfg: Return PLCA configuration. 938 * @set_plca_cfg: Set PLCA configuration. 939 * @get_plca_status: Get PLCA configuration. 940 * @start_cable_test: Start a cable test 941 * @start_cable_test_tdr: Start a Time Domain Reflectometry cable test 942 * 943 * All operations are optional (i.e. the function pointer may be set to %NULL) 944 * and callers must take this into account. Callers must hold the RTNL lock. 945 */ 946 struct ethtool_phy_ops { 947 int (*get_sset_count)(struct phy_device *dev); 948 int (*get_strings)(struct phy_device *dev, u8 *data); 949 int (*get_stats)(struct phy_device *dev, 950 struct ethtool_stats *stats, u64 *data); 951 int (*get_plca_cfg)(struct phy_device *dev, 952 struct phy_plca_cfg *plca_cfg); 953 int (*set_plca_cfg)(struct phy_device *dev, 954 const struct phy_plca_cfg *plca_cfg, 955 struct netlink_ext_ack *extack); 956 int (*get_plca_status)(struct phy_device *dev, 957 struct phy_plca_status *plca_st); 958 int (*start_cable_test)(struct phy_device *phydev, 959 struct netlink_ext_ack *extack); 960 int (*start_cable_test_tdr)(struct phy_device *phydev, 961 struct netlink_ext_ack *extack, 962 const struct phy_tdr_config *config); 963 }; 964 965 /** 966 * ethtool_set_ethtool_phy_ops - Set the ethtool_phy_ops singleton 967 * @ops: Ethtool PHY operations to set 968 */ 969 void ethtool_set_ethtool_phy_ops(const struct ethtool_phy_ops *ops); 970 971 /** 972 * ethtool_params_from_link_mode - Derive link parameters from a given link mode 973 * @link_ksettings: Link parameters to be derived from the link mode 974 * @link_mode: Link mode 975 */ 976 void 977 ethtool_params_from_link_mode(struct ethtool_link_ksettings *link_ksettings, 978 enum ethtool_link_mode_bit_indices link_mode); 979 980 /** 981 * ethtool_get_phc_vclocks - Derive phc vclocks information, and caller 982 * is responsible to free memory of vclock_index 983 * @dev: pointer to net_device structure 984 * @vclock_index: pointer to pointer of vclock index 985 * 986 * Return number of phc vclocks 987 */ 988 int ethtool_get_phc_vclocks(struct net_device *dev, int **vclock_index); 989 990 /* Some generic methods drivers may use in their ethtool_ops */ 991 u32 ethtool_op_get_link(struct net_device *dev); 992 int ethtool_op_get_ts_info(struct net_device *dev, struct ethtool_ts_info *eti); 993 994 /** 995 * ethtool_mm_frag_size_add_to_min - Translate (standard) additional fragment 996 * size expressed as multiplier into (absolute) minimum fragment size 997 * value expressed in octets 998 * @val_add: Value of addFragSize multiplier 999 */ 1000 static inline u32 ethtool_mm_frag_size_add_to_min(u32 val_add) 1001 { 1002 return (ETH_ZLEN + ETH_FCS_LEN) * (1 + val_add) - ETH_FCS_LEN; 1003 } 1004 1005 /** 1006 * ethtool_mm_frag_size_min_to_add - Translate (absolute) minimum fragment size 1007 * expressed in octets into (standard) additional fragment size expressed 1008 * as multiplier 1009 * @val_min: Value of addFragSize variable in octets 1010 * @val_add: Pointer where the standard addFragSize value is to be returned 1011 * @extack: Netlink extended ack 1012 * 1013 * Translate a value in octets to one of 0, 1, 2, 3 according to the reverse 1014 * application of the 802.3 formula 64 * (1 + addFragSize) - 4. To be called 1015 * by drivers which do not support programming the minimum fragment size to a 1016 * continuous range. Returns error on other fragment length values. 1017 */ 1018 static inline int ethtool_mm_frag_size_min_to_add(u32 val_min, u32 *val_add, 1019 struct netlink_ext_ack *extack) 1020 { 1021 u32 add_frag_size; 1022 1023 for (add_frag_size = 0; add_frag_size < 4; add_frag_size++) { 1024 if (ethtool_mm_frag_size_add_to_min(add_frag_size) == val_min) { 1025 *val_add = add_frag_size; 1026 return 0; 1027 } 1028 } 1029 1030 NL_SET_ERR_MSG_MOD(extack, 1031 "minFragSize required to be one of 60, 124, 188 or 252"); 1032 return -EINVAL; 1033 } 1034 1035 /** 1036 * ethtool_sprintf - Write formatted string to ethtool string data 1037 * @data: Pointer to start of string to update 1038 * @fmt: Format of string to write 1039 * 1040 * Write formatted string to data. Update data to point at start of 1041 * next string. 1042 */ 1043 extern __printf(2, 3) void ethtool_sprintf(u8 **data, const char *fmt, ...); 1044 #endif /* _LINUX_ETHTOOL_H */ 1045