1// SPDX-License-Identifier: GPL-2.0 2/* Copyright (c) 2018 Intel Corporation */ 3 4/* ethtool support for igc */ 5#include <linux/if_vlan.h> 6#include <linux/pm_runtime.h> 7#include <linux/mdio.h> 8 9#include "igc.h" 10#include "igc_diag.h" 11 12/* forward declaration */ 13struct igc_stats { 14 char stat_string[ETH_GSTRING_LEN]; 15 int sizeof_stat; 16 int stat_offset; 17}; 18 19#define IGC_STAT(_name, _stat) { \ 20 .stat_string = _name, \ 21 .sizeof_stat = sizeof_field(struct igc_adapter, _stat), \ 22 .stat_offset = offsetof(struct igc_adapter, _stat) \ 23} 24 25static const struct igc_stats igc_gstrings_stats[] = { 26 IGC_STAT("rx_packets", stats.gprc), 27 IGC_STAT("tx_packets", stats.gptc), 28 IGC_STAT("rx_bytes", stats.gorc), 29 IGC_STAT("tx_bytes", stats.gotc), 30 IGC_STAT("rx_broadcast", stats.bprc), 31 IGC_STAT("tx_broadcast", stats.bptc), 32 IGC_STAT("rx_multicast", stats.mprc), 33 IGC_STAT("tx_multicast", stats.mptc), 34 IGC_STAT("multicast", stats.mprc), 35 IGC_STAT("collisions", stats.colc), 36 IGC_STAT("rx_crc_errors", stats.crcerrs), 37 IGC_STAT("rx_no_buffer_count", stats.rnbc), 38 IGC_STAT("rx_missed_errors", stats.mpc), 39 IGC_STAT("tx_aborted_errors", stats.ecol), 40 IGC_STAT("tx_carrier_errors", stats.tncrs), 41 IGC_STAT("tx_window_errors", stats.latecol), 42 IGC_STAT("tx_abort_late_coll", stats.latecol), 43 IGC_STAT("tx_deferred_ok", stats.dc), 44 IGC_STAT("tx_single_coll_ok", stats.scc), 45 IGC_STAT("tx_multi_coll_ok", stats.mcc), 46 IGC_STAT("tx_timeout_count", tx_timeout_count), 47 IGC_STAT("rx_long_length_errors", stats.roc), 48 IGC_STAT("rx_short_length_errors", stats.ruc), 49 IGC_STAT("rx_align_errors", stats.algnerrc), 50 IGC_STAT("tx_tcp_seg_good", stats.tsctc), 51 IGC_STAT("tx_tcp_seg_failed", stats.tsctfc), 52 IGC_STAT("rx_flow_control_xon", stats.xonrxc), 53 IGC_STAT("rx_flow_control_xoff", stats.xoffrxc), 54 IGC_STAT("tx_flow_control_xon", stats.xontxc), 55 IGC_STAT("tx_flow_control_xoff", stats.xofftxc), 56 IGC_STAT("rx_long_byte_count", stats.gorc), 57 IGC_STAT("tx_dma_out_of_sync", stats.doosync), 58 IGC_STAT("tx_smbus", stats.mgptc), 59 IGC_STAT("rx_smbus", stats.mgprc), 60 IGC_STAT("dropped_smbus", stats.mgpdc), 61 IGC_STAT("os2bmc_rx_by_bmc", stats.o2bgptc), 62 IGC_STAT("os2bmc_tx_by_bmc", stats.b2ospc), 63 IGC_STAT("os2bmc_tx_by_host", stats.o2bspc), 64 IGC_STAT("os2bmc_rx_by_host", stats.b2ogprc), 65 IGC_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), 66 IGC_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped), 67 IGC_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared), 68}; 69 70#define IGC_NETDEV_STAT(_net_stat) { \ 71 .stat_string = __stringify(_net_stat), \ 72 .sizeof_stat = sizeof_field(struct rtnl_link_stats64, _net_stat), \ 73 .stat_offset = offsetof(struct rtnl_link_stats64, _net_stat) \ 74} 75 76static const struct igc_stats igc_gstrings_net_stats[] = { 77 IGC_NETDEV_STAT(rx_errors), 78 IGC_NETDEV_STAT(tx_errors), 79 IGC_NETDEV_STAT(tx_dropped), 80 IGC_NETDEV_STAT(rx_length_errors), 81 IGC_NETDEV_STAT(rx_over_errors), 82 IGC_NETDEV_STAT(rx_frame_errors), 83 IGC_NETDEV_STAT(rx_fifo_errors), 84 IGC_NETDEV_STAT(tx_fifo_errors), 85 IGC_NETDEV_STAT(tx_heartbeat_errors) 86}; 87 88enum igc_diagnostics_results { 89 TEST_REG = 0, 90 TEST_EEP, 91 TEST_IRQ, 92 TEST_LOOP, 93 TEST_LINK 94}; 95 96static const char igc_gstrings_test[][ETH_GSTRING_LEN] = { 97 [TEST_REG] = "Register test (offline)", 98 [TEST_EEP] = "Eeprom test (offline)", 99 [TEST_IRQ] = "Interrupt test (offline)", 100 [TEST_LOOP] = "Loopback test (offline)", 101 [TEST_LINK] = "Link test (on/offline)" 102}; 103 104#define IGC_TEST_LEN (sizeof(igc_gstrings_test) / ETH_GSTRING_LEN) 105 106#define IGC_GLOBAL_STATS_LEN \ 107 (sizeof(igc_gstrings_stats) / sizeof(struct igc_stats)) 108#define IGC_NETDEV_STATS_LEN \ 109 (sizeof(igc_gstrings_net_stats) / sizeof(struct igc_stats)) 110#define IGC_RX_QUEUE_STATS_LEN \ 111 (sizeof(struct igc_rx_queue_stats) / sizeof(u64)) 112#define IGC_TX_QUEUE_STATS_LEN 3 /* packets, bytes, restart_queue */ 113#define IGC_QUEUE_STATS_LEN \ 114 ((((struct igc_adapter *)netdev_priv(netdev))->num_rx_queues * \ 115 IGC_RX_QUEUE_STATS_LEN) + \ 116 (((struct igc_adapter *)netdev_priv(netdev))->num_tx_queues * \ 117 IGC_TX_QUEUE_STATS_LEN)) 118#define IGC_STATS_LEN \ 119 (IGC_GLOBAL_STATS_LEN + IGC_NETDEV_STATS_LEN + IGC_QUEUE_STATS_LEN) 120 121static const char igc_priv_flags_strings[][ETH_GSTRING_LEN] = { 122#define IGC_PRIV_FLAGS_LEGACY_RX BIT(0) 123 "legacy-rx", 124}; 125 126#define IGC_PRIV_FLAGS_STR_LEN ARRAY_SIZE(igc_priv_flags_strings) 127 128static void igc_ethtool_get_drvinfo(struct net_device *netdev, 129 struct ethtool_drvinfo *drvinfo) 130{ 131 struct igc_adapter *adapter = netdev_priv(netdev); 132 133 strlcpy(drvinfo->driver, igc_driver_name, sizeof(drvinfo->driver)); 134 135 /* add fw_version here */ 136 strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), 137 sizeof(drvinfo->bus_info)); 138 139 drvinfo->n_priv_flags = IGC_PRIV_FLAGS_STR_LEN; 140} 141 142static int igc_ethtool_get_regs_len(struct net_device *netdev) 143{ 144 return IGC_REGS_LEN * sizeof(u32); 145} 146 147static void igc_ethtool_get_regs(struct net_device *netdev, 148 struct ethtool_regs *regs, void *p) 149{ 150 struct igc_adapter *adapter = netdev_priv(netdev); 151 struct igc_hw *hw = &adapter->hw; 152 u32 *regs_buff = p; 153 u8 i; 154 155 memset(p, 0, IGC_REGS_LEN * sizeof(u32)); 156 157 regs->version = (2u << 24) | (hw->revision_id << 16) | hw->device_id; 158 159 /* General Registers */ 160 regs_buff[0] = rd32(IGC_CTRL); 161 regs_buff[1] = rd32(IGC_STATUS); 162 regs_buff[2] = rd32(IGC_CTRL_EXT); 163 regs_buff[3] = rd32(IGC_MDIC); 164 regs_buff[4] = rd32(IGC_CONNSW); 165 166 /* NVM Register */ 167 regs_buff[5] = rd32(IGC_EECD); 168 169 /* Interrupt */ 170 /* Reading EICS for EICR because they read the 171 * same but EICS does not clear on read 172 */ 173 regs_buff[6] = rd32(IGC_EICS); 174 regs_buff[7] = rd32(IGC_EICS); 175 regs_buff[8] = rd32(IGC_EIMS); 176 regs_buff[9] = rd32(IGC_EIMC); 177 regs_buff[10] = rd32(IGC_EIAC); 178 regs_buff[11] = rd32(IGC_EIAM); 179 /* Reading ICS for ICR because they read the 180 * same but ICS does not clear on read 181 */ 182 regs_buff[12] = rd32(IGC_ICS); 183 regs_buff[13] = rd32(IGC_ICS); 184 regs_buff[14] = rd32(IGC_IMS); 185 regs_buff[15] = rd32(IGC_IMC); 186 regs_buff[16] = rd32(IGC_IAC); 187 regs_buff[17] = rd32(IGC_IAM); 188 189 /* Flow Control */ 190 regs_buff[18] = rd32(IGC_FCAL); 191 regs_buff[19] = rd32(IGC_FCAH); 192 regs_buff[20] = rd32(IGC_FCTTV); 193 regs_buff[21] = rd32(IGC_FCRTL); 194 regs_buff[22] = rd32(IGC_FCRTH); 195 regs_buff[23] = rd32(IGC_FCRTV); 196 197 /* Receive */ 198 regs_buff[24] = rd32(IGC_RCTL); 199 regs_buff[25] = rd32(IGC_RXCSUM); 200 regs_buff[26] = rd32(IGC_RLPML); 201 regs_buff[27] = rd32(IGC_RFCTL); 202 203 /* Transmit */ 204 regs_buff[28] = rd32(IGC_TCTL); 205 regs_buff[29] = rd32(IGC_TIPG); 206 207 /* Wake Up */ 208 209 /* MAC */ 210 211 /* Statistics */ 212 regs_buff[30] = adapter->stats.crcerrs; 213 regs_buff[31] = adapter->stats.algnerrc; 214 regs_buff[32] = adapter->stats.symerrs; 215 regs_buff[33] = adapter->stats.rxerrc; 216 regs_buff[34] = adapter->stats.mpc; 217 regs_buff[35] = adapter->stats.scc; 218 regs_buff[36] = adapter->stats.ecol; 219 regs_buff[37] = adapter->stats.mcc; 220 regs_buff[38] = adapter->stats.latecol; 221 regs_buff[39] = adapter->stats.colc; 222 regs_buff[40] = adapter->stats.dc; 223 regs_buff[41] = adapter->stats.tncrs; 224 regs_buff[42] = adapter->stats.sec; 225 regs_buff[43] = adapter->stats.htdpmc; 226 regs_buff[44] = adapter->stats.rlec; 227 regs_buff[45] = adapter->stats.xonrxc; 228 regs_buff[46] = adapter->stats.xontxc; 229 regs_buff[47] = adapter->stats.xoffrxc; 230 regs_buff[48] = adapter->stats.xofftxc; 231 regs_buff[49] = adapter->stats.fcruc; 232 regs_buff[50] = adapter->stats.prc64; 233 regs_buff[51] = adapter->stats.prc127; 234 regs_buff[52] = adapter->stats.prc255; 235 regs_buff[53] = adapter->stats.prc511; 236 regs_buff[54] = adapter->stats.prc1023; 237 regs_buff[55] = adapter->stats.prc1522; 238 regs_buff[56] = adapter->stats.gprc; 239 regs_buff[57] = adapter->stats.bprc; 240 regs_buff[58] = adapter->stats.mprc; 241 regs_buff[59] = adapter->stats.gptc; 242 regs_buff[60] = adapter->stats.gorc; 243 regs_buff[61] = adapter->stats.gotc; 244 regs_buff[62] = adapter->stats.rnbc; 245 regs_buff[63] = adapter->stats.ruc; 246 regs_buff[64] = adapter->stats.rfc; 247 regs_buff[65] = adapter->stats.roc; 248 regs_buff[66] = adapter->stats.rjc; 249 regs_buff[67] = adapter->stats.mgprc; 250 regs_buff[68] = adapter->stats.mgpdc; 251 regs_buff[69] = adapter->stats.mgptc; 252 regs_buff[70] = adapter->stats.tor; 253 regs_buff[71] = adapter->stats.tot; 254 regs_buff[72] = adapter->stats.tpr; 255 regs_buff[73] = adapter->stats.tpt; 256 regs_buff[74] = adapter->stats.ptc64; 257 regs_buff[75] = adapter->stats.ptc127; 258 regs_buff[76] = adapter->stats.ptc255; 259 regs_buff[77] = adapter->stats.ptc511; 260 regs_buff[78] = adapter->stats.ptc1023; 261 regs_buff[79] = adapter->stats.ptc1522; 262 regs_buff[80] = adapter->stats.mptc; 263 regs_buff[81] = adapter->stats.bptc; 264 regs_buff[82] = adapter->stats.tsctc; 265 regs_buff[83] = adapter->stats.iac; 266 regs_buff[84] = adapter->stats.rpthc; 267 regs_buff[85] = adapter->stats.hgptc; 268 regs_buff[86] = adapter->stats.hgorc; 269 regs_buff[87] = adapter->stats.hgotc; 270 regs_buff[88] = adapter->stats.lenerrs; 271 regs_buff[89] = adapter->stats.scvpc; 272 regs_buff[90] = adapter->stats.hrmpc; 273 274 for (i = 0; i < 4; i++) 275 regs_buff[91 + i] = rd32(IGC_SRRCTL(i)); 276 for (i = 0; i < 4; i++) 277 regs_buff[95 + i] = rd32(IGC_PSRTYPE(i)); 278 for (i = 0; i < 4; i++) 279 regs_buff[99 + i] = rd32(IGC_RDBAL(i)); 280 for (i = 0; i < 4; i++) 281 regs_buff[103 + i] = rd32(IGC_RDBAH(i)); 282 for (i = 0; i < 4; i++) 283 regs_buff[107 + i] = rd32(IGC_RDLEN(i)); 284 for (i = 0; i < 4; i++) 285 regs_buff[111 + i] = rd32(IGC_RDH(i)); 286 for (i = 0; i < 4; i++) 287 regs_buff[115 + i] = rd32(IGC_RDT(i)); 288 for (i = 0; i < 4; i++) 289 regs_buff[119 + i] = rd32(IGC_RXDCTL(i)); 290 291 for (i = 0; i < 10; i++) 292 regs_buff[123 + i] = rd32(IGC_EITR(i)); 293 for (i = 0; i < 16; i++) 294 regs_buff[139 + i] = rd32(IGC_RAL(i)); 295 for (i = 0; i < 16; i++) 296 regs_buff[145 + i] = rd32(IGC_RAH(i)); 297 298 for (i = 0; i < 4; i++) 299 regs_buff[149 + i] = rd32(IGC_TDBAL(i)); 300 for (i = 0; i < 4; i++) 301 regs_buff[152 + i] = rd32(IGC_TDBAH(i)); 302 for (i = 0; i < 4; i++) 303 regs_buff[156 + i] = rd32(IGC_TDLEN(i)); 304 for (i = 0; i < 4; i++) 305 regs_buff[160 + i] = rd32(IGC_TDH(i)); 306 for (i = 0; i < 4; i++) 307 regs_buff[164 + i] = rd32(IGC_TDT(i)); 308 for (i = 0; i < 4; i++) 309 regs_buff[168 + i] = rd32(IGC_TXDCTL(i)); 310 311 /* XXX: Due to a bug few lines above, RAL and RAH registers are 312 * overwritten. To preserve the ABI, we write these registers again in 313 * regs_buff. 314 */ 315 for (i = 0; i < 16; i++) 316 regs_buff[172 + i] = rd32(IGC_RAL(i)); 317 for (i = 0; i < 16; i++) 318 regs_buff[188 + i] = rd32(IGC_RAH(i)); 319 320 regs_buff[204] = rd32(IGC_VLANPQF); 321 322 for (i = 0; i < 8; i++) 323 regs_buff[205 + i] = rd32(IGC_ETQF(i)); 324 325 regs_buff[213] = adapter->stats.tlpic; 326 regs_buff[214] = adapter->stats.rlpic; 327} 328 329static void igc_ethtool_get_wol(struct net_device *netdev, 330 struct ethtool_wolinfo *wol) 331{ 332 struct igc_adapter *adapter = netdev_priv(netdev); 333 334 wol->wolopts = 0; 335 336 if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED)) 337 return; 338 339 wol->supported = WAKE_UCAST | WAKE_MCAST | 340 WAKE_BCAST | WAKE_MAGIC | 341 WAKE_PHY; 342 343 /* apply any specific unsupported masks here */ 344 switch (adapter->hw.device_id) { 345 default: 346 break; 347 } 348 349 if (adapter->wol & IGC_WUFC_EX) 350 wol->wolopts |= WAKE_UCAST; 351 if (adapter->wol & IGC_WUFC_MC) 352 wol->wolopts |= WAKE_MCAST; 353 if (adapter->wol & IGC_WUFC_BC) 354 wol->wolopts |= WAKE_BCAST; 355 if (adapter->wol & IGC_WUFC_MAG) 356 wol->wolopts |= WAKE_MAGIC; 357 if (adapter->wol & IGC_WUFC_LNKC) 358 wol->wolopts |= WAKE_PHY; 359} 360 361static int igc_ethtool_set_wol(struct net_device *netdev, 362 struct ethtool_wolinfo *wol) 363{ 364 struct igc_adapter *adapter = netdev_priv(netdev); 365 366 if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE | WAKE_FILTER)) 367 return -EOPNOTSUPP; 368 369 if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED)) 370 return wol->wolopts ? -EOPNOTSUPP : 0; 371 372 /* these settings will always override what we currently have */ 373 adapter->wol = 0; 374 375 if (wol->wolopts & WAKE_UCAST) 376 adapter->wol |= IGC_WUFC_EX; 377 if (wol->wolopts & WAKE_MCAST) 378 adapter->wol |= IGC_WUFC_MC; 379 if (wol->wolopts & WAKE_BCAST) 380 adapter->wol |= IGC_WUFC_BC; 381 if (wol->wolopts & WAKE_MAGIC) 382 adapter->wol |= IGC_WUFC_MAG; 383 if (wol->wolopts & WAKE_PHY) 384 adapter->wol |= IGC_WUFC_LNKC; 385 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); 386 387 return 0; 388} 389 390static u32 igc_ethtool_get_msglevel(struct net_device *netdev) 391{ 392 struct igc_adapter *adapter = netdev_priv(netdev); 393 394 return adapter->msg_enable; 395} 396 397static void igc_ethtool_set_msglevel(struct net_device *netdev, u32 data) 398{ 399 struct igc_adapter *adapter = netdev_priv(netdev); 400 401 adapter->msg_enable = data; 402} 403 404static int igc_ethtool_nway_reset(struct net_device *netdev) 405{ 406 struct igc_adapter *adapter = netdev_priv(netdev); 407 408 if (netif_running(netdev)) 409 igc_reinit_locked(adapter); 410 return 0; 411} 412 413static u32 igc_ethtool_get_link(struct net_device *netdev) 414{ 415 struct igc_adapter *adapter = netdev_priv(netdev); 416 struct igc_mac_info *mac = &adapter->hw.mac; 417 418 /* If the link is not reported up to netdev, interrupts are disabled, 419 * and so the physical link state may have changed since we last 420 * looked. Set get_link_status to make sure that the true link 421 * state is interrogated, rather than pulling a cached and possibly 422 * stale link state from the driver. 423 */ 424 if (!netif_carrier_ok(netdev)) 425 mac->get_link_status = 1; 426 427 return igc_has_link(adapter); 428} 429 430static int igc_ethtool_get_eeprom_len(struct net_device *netdev) 431{ 432 struct igc_adapter *adapter = netdev_priv(netdev); 433 434 return adapter->hw.nvm.word_size * 2; 435} 436 437static int igc_ethtool_get_eeprom(struct net_device *netdev, 438 struct ethtool_eeprom *eeprom, u8 *bytes) 439{ 440 struct igc_adapter *adapter = netdev_priv(netdev); 441 struct igc_hw *hw = &adapter->hw; 442 int first_word, last_word; 443 u16 *eeprom_buff; 444 int ret_val = 0; 445 u16 i; 446 447 if (eeprom->len == 0) 448 return -EINVAL; 449 450 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 451 452 first_word = eeprom->offset >> 1; 453 last_word = (eeprom->offset + eeprom->len - 1) >> 1; 454 455 eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16), 456 GFP_KERNEL); 457 if (!eeprom_buff) 458 return -ENOMEM; 459 460 if (hw->nvm.type == igc_nvm_eeprom_spi) { 461 ret_val = hw->nvm.ops.read(hw, first_word, 462 last_word - first_word + 1, 463 eeprom_buff); 464 } else { 465 for (i = 0; i < last_word - first_word + 1; i++) { 466 ret_val = hw->nvm.ops.read(hw, first_word + i, 1, 467 &eeprom_buff[i]); 468 if (ret_val) 469 break; 470 } 471 } 472 473 /* Device's eeprom is always little-endian, word addressable */ 474 for (i = 0; i < last_word - first_word + 1; i++) 475 le16_to_cpus(&eeprom_buff[i]); 476 477 memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), 478 eeprom->len); 479 kfree(eeprom_buff); 480 481 return ret_val; 482} 483 484static int igc_ethtool_set_eeprom(struct net_device *netdev, 485 struct ethtool_eeprom *eeprom, u8 *bytes) 486{ 487 struct igc_adapter *adapter = netdev_priv(netdev); 488 struct igc_hw *hw = &adapter->hw; 489 int max_len, first_word, last_word, ret_val = 0; 490 u16 *eeprom_buff; 491 void *ptr; 492 u16 i; 493 494 if (eeprom->len == 0) 495 return -EOPNOTSUPP; 496 497 if (hw->mac.type >= igc_i225 && 498 !igc_get_flash_presence_i225(hw)) { 499 return -EOPNOTSUPP; 500 } 501 502 if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16))) 503 return -EFAULT; 504 505 max_len = hw->nvm.word_size * 2; 506 507 first_word = eeprom->offset >> 1; 508 last_word = (eeprom->offset + eeprom->len - 1) >> 1; 509 eeprom_buff = kmalloc(max_len, GFP_KERNEL); 510 if (!eeprom_buff) 511 return -ENOMEM; 512 513 ptr = (void *)eeprom_buff; 514 515 if (eeprom->offset & 1) { 516 /* need read/modify/write of first changed EEPROM word 517 * only the second byte of the word is being modified 518 */ 519 ret_val = hw->nvm.ops.read(hw, first_word, 1, 520 &eeprom_buff[0]); 521 ptr++; 522 } 523 if (((eeprom->offset + eeprom->len) & 1) && ret_val == 0) { 524 /* need read/modify/write of last changed EEPROM word 525 * only the first byte of the word is being modified 526 */ 527 ret_val = hw->nvm.ops.read(hw, last_word, 1, 528 &eeprom_buff[last_word - first_word]); 529 } 530 531 /* Device's eeprom is always little-endian, word addressable */ 532 for (i = 0; i < last_word - first_word + 1; i++) 533 le16_to_cpus(&eeprom_buff[i]); 534 535 memcpy(ptr, bytes, eeprom->len); 536 537 for (i = 0; i < last_word - first_word + 1; i++) 538 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]); 539 540 ret_val = hw->nvm.ops.write(hw, first_word, 541 last_word - first_word + 1, eeprom_buff); 542 543 /* Update the checksum if nvm write succeeded */ 544 if (ret_val == 0) 545 hw->nvm.ops.update(hw); 546 547 /* check if need: igc_set_fw_version(adapter); */ 548 kfree(eeprom_buff); 549 return ret_val; 550} 551 552static void igc_ethtool_get_ringparam(struct net_device *netdev, 553 struct ethtool_ringparam *ring) 554{ 555 struct igc_adapter *adapter = netdev_priv(netdev); 556 557 ring->rx_max_pending = IGC_MAX_RXD; 558 ring->tx_max_pending = IGC_MAX_TXD; 559 ring->rx_pending = adapter->rx_ring_count; 560 ring->tx_pending = adapter->tx_ring_count; 561} 562 563static int igc_ethtool_set_ringparam(struct net_device *netdev, 564 struct ethtool_ringparam *ring) 565{ 566 struct igc_adapter *adapter = netdev_priv(netdev); 567 struct igc_ring *temp_ring; 568 u16 new_rx_count, new_tx_count; 569 int i, err = 0; 570 571 if (ring->rx_mini_pending || ring->rx_jumbo_pending) 572 return -EINVAL; 573 574 new_rx_count = min_t(u32, ring->rx_pending, IGC_MAX_RXD); 575 new_rx_count = max_t(u16, new_rx_count, IGC_MIN_RXD); 576 new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE); 577 578 new_tx_count = min_t(u32, ring->tx_pending, IGC_MAX_TXD); 579 new_tx_count = max_t(u16, new_tx_count, IGC_MIN_TXD); 580 new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE); 581 582 if (new_tx_count == adapter->tx_ring_count && 583 new_rx_count == adapter->rx_ring_count) { 584 /* nothing to do */ 585 return 0; 586 } 587 588 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 589 usleep_range(1000, 2000); 590 591 if (!netif_running(adapter->netdev)) { 592 for (i = 0; i < adapter->num_tx_queues; i++) 593 adapter->tx_ring[i]->count = new_tx_count; 594 for (i = 0; i < adapter->num_rx_queues; i++) 595 adapter->rx_ring[i]->count = new_rx_count; 596 adapter->tx_ring_count = new_tx_count; 597 adapter->rx_ring_count = new_rx_count; 598 goto clear_reset; 599 } 600 601 if (adapter->num_tx_queues > adapter->num_rx_queues) 602 temp_ring = vmalloc(array_size(sizeof(struct igc_ring), 603 adapter->num_tx_queues)); 604 else 605 temp_ring = vmalloc(array_size(sizeof(struct igc_ring), 606 adapter->num_rx_queues)); 607 608 if (!temp_ring) { 609 err = -ENOMEM; 610 goto clear_reset; 611 } 612 613 igc_down(adapter); 614 615 /* We can't just free everything and then setup again, 616 * because the ISRs in MSI-X mode get passed pointers 617 * to the Tx and Rx ring structs. 618 */ 619 if (new_tx_count != adapter->tx_ring_count) { 620 for (i = 0; i < adapter->num_tx_queues; i++) { 621 memcpy(&temp_ring[i], adapter->tx_ring[i], 622 sizeof(struct igc_ring)); 623 624 temp_ring[i].count = new_tx_count; 625 err = igc_setup_tx_resources(&temp_ring[i]); 626 if (err) { 627 while (i) { 628 i--; 629 igc_free_tx_resources(&temp_ring[i]); 630 } 631 goto err_setup; 632 } 633 } 634 635 for (i = 0; i < adapter->num_tx_queues; i++) { 636 igc_free_tx_resources(adapter->tx_ring[i]); 637 638 memcpy(adapter->tx_ring[i], &temp_ring[i], 639 sizeof(struct igc_ring)); 640 } 641 642 adapter->tx_ring_count = new_tx_count; 643 } 644 645 if (new_rx_count != adapter->rx_ring_count) { 646 for (i = 0; i < adapter->num_rx_queues; i++) { 647 memcpy(&temp_ring[i], adapter->rx_ring[i], 648 sizeof(struct igc_ring)); 649 650 temp_ring[i].count = new_rx_count; 651 err = igc_setup_rx_resources(&temp_ring[i]); 652 if (err) { 653 while (i) { 654 i--; 655 igc_free_rx_resources(&temp_ring[i]); 656 } 657 goto err_setup; 658 } 659 } 660 661 for (i = 0; i < adapter->num_rx_queues; i++) { 662 igc_free_rx_resources(adapter->rx_ring[i]); 663 664 memcpy(adapter->rx_ring[i], &temp_ring[i], 665 sizeof(struct igc_ring)); 666 } 667 668 adapter->rx_ring_count = new_rx_count; 669 } 670err_setup: 671 igc_up(adapter); 672 vfree(temp_ring); 673clear_reset: 674 clear_bit(__IGC_RESETTING, &adapter->state); 675 return err; 676} 677 678static void igc_ethtool_get_pauseparam(struct net_device *netdev, 679 struct ethtool_pauseparam *pause) 680{ 681 struct igc_adapter *adapter = netdev_priv(netdev); 682 struct igc_hw *hw = &adapter->hw; 683 684 pause->autoneg = 685 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE); 686 687 if (hw->fc.current_mode == igc_fc_rx_pause) { 688 pause->rx_pause = 1; 689 } else if (hw->fc.current_mode == igc_fc_tx_pause) { 690 pause->tx_pause = 1; 691 } else if (hw->fc.current_mode == igc_fc_full) { 692 pause->rx_pause = 1; 693 pause->tx_pause = 1; 694 } 695} 696 697static int igc_ethtool_set_pauseparam(struct net_device *netdev, 698 struct ethtool_pauseparam *pause) 699{ 700 struct igc_adapter *adapter = netdev_priv(netdev); 701 struct igc_hw *hw = &adapter->hw; 702 int retval = 0; 703 704 adapter->fc_autoneg = pause->autoneg; 705 706 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 707 usleep_range(1000, 2000); 708 709 if (adapter->fc_autoneg == AUTONEG_ENABLE) { 710 hw->fc.requested_mode = igc_fc_default; 711 if (netif_running(adapter->netdev)) { 712 igc_down(adapter); 713 igc_up(adapter); 714 } else { 715 igc_reset(adapter); 716 } 717 } else { 718 if (pause->rx_pause && pause->tx_pause) 719 hw->fc.requested_mode = igc_fc_full; 720 else if (pause->rx_pause && !pause->tx_pause) 721 hw->fc.requested_mode = igc_fc_rx_pause; 722 else if (!pause->rx_pause && pause->tx_pause) 723 hw->fc.requested_mode = igc_fc_tx_pause; 724 else if (!pause->rx_pause && !pause->tx_pause) 725 hw->fc.requested_mode = igc_fc_none; 726 727 hw->fc.current_mode = hw->fc.requested_mode; 728 729 retval = ((hw->phy.media_type == igc_media_type_copper) ? 730 igc_force_mac_fc(hw) : igc_setup_link(hw)); 731 } 732 733 clear_bit(__IGC_RESETTING, &adapter->state); 734 return retval; 735} 736 737static void igc_ethtool_get_strings(struct net_device *netdev, u32 stringset, 738 u8 *data) 739{ 740 struct igc_adapter *adapter = netdev_priv(netdev); 741 u8 *p = data; 742 int i; 743 744 switch (stringset) { 745 case ETH_SS_TEST: 746 memcpy(data, *igc_gstrings_test, 747 IGC_TEST_LEN * ETH_GSTRING_LEN); 748 break; 749 case ETH_SS_STATS: 750 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) { 751 memcpy(p, igc_gstrings_stats[i].stat_string, 752 ETH_GSTRING_LEN); 753 p += ETH_GSTRING_LEN; 754 } 755 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++) { 756 memcpy(p, igc_gstrings_net_stats[i].stat_string, 757 ETH_GSTRING_LEN); 758 p += ETH_GSTRING_LEN; 759 } 760 for (i = 0; i < adapter->num_tx_queues; i++) { 761 sprintf(p, "tx_queue_%u_packets", i); 762 p += ETH_GSTRING_LEN; 763 sprintf(p, "tx_queue_%u_bytes", i); 764 p += ETH_GSTRING_LEN; 765 sprintf(p, "tx_queue_%u_restart", i); 766 p += ETH_GSTRING_LEN; 767 } 768 for (i = 0; i < adapter->num_rx_queues; i++) { 769 sprintf(p, "rx_queue_%u_packets", i); 770 p += ETH_GSTRING_LEN; 771 sprintf(p, "rx_queue_%u_bytes", i); 772 p += ETH_GSTRING_LEN; 773 sprintf(p, "rx_queue_%u_drops", i); 774 p += ETH_GSTRING_LEN; 775 sprintf(p, "rx_queue_%u_csum_err", i); 776 p += ETH_GSTRING_LEN; 777 sprintf(p, "rx_queue_%u_alloc_failed", i); 778 p += ETH_GSTRING_LEN; 779 } 780 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */ 781 break; 782 case ETH_SS_PRIV_FLAGS: 783 memcpy(data, igc_priv_flags_strings, 784 IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN); 785 break; 786 } 787} 788 789static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset) 790{ 791 switch (sset) { 792 case ETH_SS_STATS: 793 return IGC_STATS_LEN; 794 case ETH_SS_TEST: 795 return IGC_TEST_LEN; 796 case ETH_SS_PRIV_FLAGS: 797 return IGC_PRIV_FLAGS_STR_LEN; 798 default: 799 return -ENOTSUPP; 800 } 801} 802 803static void igc_ethtool_get_stats(struct net_device *netdev, 804 struct ethtool_stats *stats, u64 *data) 805{ 806 struct igc_adapter *adapter = netdev_priv(netdev); 807 struct rtnl_link_stats64 *net_stats = &adapter->stats64; 808 unsigned int start; 809 struct igc_ring *ring; 810 int i, j; 811 char *p; 812 813 spin_lock(&adapter->stats64_lock); 814 igc_update_stats(adapter); 815 816 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) { 817 p = (char *)adapter + igc_gstrings_stats[i].stat_offset; 818 data[i] = (igc_gstrings_stats[i].sizeof_stat == 819 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 820 } 821 for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) { 822 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset; 823 data[i] = (igc_gstrings_net_stats[j].sizeof_stat == 824 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 825 } 826 for (j = 0; j < adapter->num_tx_queues; j++) { 827 u64 restart2; 828 829 ring = adapter->tx_ring[j]; 830 do { 831 start = u64_stats_fetch_begin_irq(&ring->tx_syncp); 832 data[i] = ring->tx_stats.packets; 833 data[i + 1] = ring->tx_stats.bytes; 834 data[i + 2] = ring->tx_stats.restart_queue; 835 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp, start)); 836 do { 837 start = u64_stats_fetch_begin_irq(&ring->tx_syncp2); 838 restart2 = ring->tx_stats.restart_queue2; 839 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp2, start)); 840 data[i + 2] += restart2; 841 842 i += IGC_TX_QUEUE_STATS_LEN; 843 } 844 for (j = 0; j < adapter->num_rx_queues; j++) { 845 ring = adapter->rx_ring[j]; 846 do { 847 start = u64_stats_fetch_begin_irq(&ring->rx_syncp); 848 data[i] = ring->rx_stats.packets; 849 data[i + 1] = ring->rx_stats.bytes; 850 data[i + 2] = ring->rx_stats.drops; 851 data[i + 3] = ring->rx_stats.csum_err; 852 data[i + 4] = ring->rx_stats.alloc_failed; 853 } while (u64_stats_fetch_retry_irq(&ring->rx_syncp, start)); 854 i += IGC_RX_QUEUE_STATS_LEN; 855 } 856 spin_unlock(&adapter->stats64_lock); 857} 858 859static int igc_ethtool_get_coalesce(struct net_device *netdev, 860 struct ethtool_coalesce *ec) 861{ 862 struct igc_adapter *adapter = netdev_priv(netdev); 863 864 if (adapter->rx_itr_setting <= 3) 865 ec->rx_coalesce_usecs = adapter->rx_itr_setting; 866 else 867 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2; 868 869 if (!(adapter->flags & IGC_FLAG_QUEUE_PAIRS)) { 870 if (adapter->tx_itr_setting <= 3) 871 ec->tx_coalesce_usecs = adapter->tx_itr_setting; 872 else 873 ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2; 874 } 875 876 return 0; 877} 878 879static int igc_ethtool_set_coalesce(struct net_device *netdev, 880 struct ethtool_coalesce *ec) 881{ 882 struct igc_adapter *adapter = netdev_priv(netdev); 883 int i; 884 885 if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS || 886 (ec->rx_coalesce_usecs > 3 && 887 ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) || 888 ec->rx_coalesce_usecs == 2) 889 return -EINVAL; 890 891 if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS || 892 (ec->tx_coalesce_usecs > 3 && 893 ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) || 894 ec->tx_coalesce_usecs == 2) 895 return -EINVAL; 896 897 if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) && ec->tx_coalesce_usecs) 898 return -EINVAL; 899 900 /* If ITR is disabled, disable DMAC */ 901 if (ec->rx_coalesce_usecs == 0) { 902 if (adapter->flags & IGC_FLAG_DMAC) 903 adapter->flags &= ~IGC_FLAG_DMAC; 904 } 905 906 /* convert to rate of irq's per second */ 907 if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3) 908 adapter->rx_itr_setting = ec->rx_coalesce_usecs; 909 else 910 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2; 911 912 /* convert to rate of irq's per second */ 913 if (adapter->flags & IGC_FLAG_QUEUE_PAIRS) 914 adapter->tx_itr_setting = adapter->rx_itr_setting; 915 else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3) 916 adapter->tx_itr_setting = ec->tx_coalesce_usecs; 917 else 918 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2; 919 920 for (i = 0; i < adapter->num_q_vectors; i++) { 921 struct igc_q_vector *q_vector = adapter->q_vector[i]; 922 923 q_vector->tx.work_limit = adapter->tx_work_limit; 924 if (q_vector->rx.ring) 925 q_vector->itr_val = adapter->rx_itr_setting; 926 else 927 q_vector->itr_val = adapter->tx_itr_setting; 928 if (q_vector->itr_val && q_vector->itr_val <= 3) 929 q_vector->itr_val = IGC_START_ITR; 930 q_vector->set_itr = 1; 931 } 932 933 return 0; 934} 935 936#define ETHER_TYPE_FULL_MASK ((__force __be16)~0) 937static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter, 938 struct ethtool_rxnfc *cmd) 939{ 940 struct ethtool_rx_flow_spec *fsp = &cmd->fs; 941 struct igc_nfc_rule *rule = NULL; 942 943 cmd->data = IGC_MAX_RXNFC_RULES; 944 945 mutex_lock(&adapter->nfc_rule_lock); 946 947 rule = igc_get_nfc_rule(adapter, fsp->location); 948 if (!rule) 949 goto out; 950 951 fsp->flow_type = ETHER_FLOW; 952 fsp->ring_cookie = rule->action; 953 954 if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) { 955 fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype); 956 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK; 957 } 958 959 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) { 960 fsp->flow_type |= FLOW_EXT; 961 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci); 962 fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK); 963 } 964 965 if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) { 966 ether_addr_copy(fsp->h_u.ether_spec.h_dest, 967 rule->filter.dst_addr); 968 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest); 969 } 970 971 if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) { 972 ether_addr_copy(fsp->h_u.ether_spec.h_source, 973 rule->filter.src_addr); 974 eth_broadcast_addr(fsp->m_u.ether_spec.h_source); 975 } 976 977 mutex_unlock(&adapter->nfc_rule_lock); 978 return 0; 979 980out: 981 mutex_unlock(&adapter->nfc_rule_lock); 982 return -EINVAL; 983} 984 985static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter, 986 struct ethtool_rxnfc *cmd, 987 u32 *rule_locs) 988{ 989 struct igc_nfc_rule *rule; 990 int cnt = 0; 991 992 cmd->data = IGC_MAX_RXNFC_RULES; 993 994 mutex_lock(&adapter->nfc_rule_lock); 995 996 list_for_each_entry(rule, &adapter->nfc_rule_list, list) { 997 if (cnt == cmd->rule_cnt) { 998 mutex_unlock(&adapter->nfc_rule_lock); 999 return -EMSGSIZE; 1000 } 1001 rule_locs[cnt] = rule->location; 1002 cnt++; 1003 } 1004 1005 mutex_unlock(&adapter->nfc_rule_lock); 1006 1007 cmd->rule_cnt = cnt; 1008 1009 return 0; 1010} 1011 1012static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter, 1013 struct ethtool_rxnfc *cmd) 1014{ 1015 cmd->data = 0; 1016 1017 /* Report default options for RSS on igc */ 1018 switch (cmd->flow_type) { 1019 case TCP_V4_FLOW: 1020 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1021 fallthrough; 1022 case UDP_V4_FLOW: 1023 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 1024 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1025 fallthrough; 1026 case SCTP_V4_FLOW: 1027 case AH_ESP_V4_FLOW: 1028 case AH_V4_FLOW: 1029 case ESP_V4_FLOW: 1030 case IPV4_FLOW: 1031 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1032 break; 1033 case TCP_V6_FLOW: 1034 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1035 fallthrough; 1036 case UDP_V6_FLOW: 1037 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 1038 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1039 fallthrough; 1040 case SCTP_V6_FLOW: 1041 case AH_ESP_V6_FLOW: 1042 case AH_V6_FLOW: 1043 case ESP_V6_FLOW: 1044 case IPV6_FLOW: 1045 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1046 break; 1047 default: 1048 return -EINVAL; 1049 } 1050 1051 return 0; 1052} 1053 1054static int igc_ethtool_get_rxnfc(struct net_device *dev, 1055 struct ethtool_rxnfc *cmd, u32 *rule_locs) 1056{ 1057 struct igc_adapter *adapter = netdev_priv(dev); 1058 1059 switch (cmd->cmd) { 1060 case ETHTOOL_GRXRINGS: 1061 cmd->data = adapter->num_rx_queues; 1062 return 0; 1063 case ETHTOOL_GRXCLSRLCNT: 1064 cmd->rule_cnt = adapter->nfc_rule_count; 1065 return 0; 1066 case ETHTOOL_GRXCLSRULE: 1067 return igc_ethtool_get_nfc_rule(adapter, cmd); 1068 case ETHTOOL_GRXCLSRLALL: 1069 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs); 1070 case ETHTOOL_GRXFH: 1071 return igc_ethtool_get_rss_hash_opts(adapter, cmd); 1072 default: 1073 return -EOPNOTSUPP; 1074 } 1075} 1076 1077#define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \ 1078 IGC_FLAG_RSS_FIELD_IPV6_UDP) 1079static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter, 1080 struct ethtool_rxnfc *nfc) 1081{ 1082 u32 flags = adapter->flags; 1083 1084 /* RSS does not support anything other than hashing 1085 * to queues on src and dst IPs and ports 1086 */ 1087 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 1088 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 1089 return -EINVAL; 1090 1091 switch (nfc->flow_type) { 1092 case TCP_V4_FLOW: 1093 case TCP_V6_FLOW: 1094 if (!(nfc->data & RXH_IP_SRC) || 1095 !(nfc->data & RXH_IP_DST) || 1096 !(nfc->data & RXH_L4_B_0_1) || 1097 !(nfc->data & RXH_L4_B_2_3)) 1098 return -EINVAL; 1099 break; 1100 case UDP_V4_FLOW: 1101 if (!(nfc->data & RXH_IP_SRC) || 1102 !(nfc->data & RXH_IP_DST)) 1103 return -EINVAL; 1104 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1105 case 0: 1106 flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP; 1107 break; 1108 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1109 flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP; 1110 break; 1111 default: 1112 return -EINVAL; 1113 } 1114 break; 1115 case UDP_V6_FLOW: 1116 if (!(nfc->data & RXH_IP_SRC) || 1117 !(nfc->data & RXH_IP_DST)) 1118 return -EINVAL; 1119 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1120 case 0: 1121 flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP; 1122 break; 1123 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1124 flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP; 1125 break; 1126 default: 1127 return -EINVAL; 1128 } 1129 break; 1130 case AH_ESP_V4_FLOW: 1131 case AH_V4_FLOW: 1132 case ESP_V4_FLOW: 1133 case SCTP_V4_FLOW: 1134 case AH_ESP_V6_FLOW: 1135 case AH_V6_FLOW: 1136 case ESP_V6_FLOW: 1137 case SCTP_V6_FLOW: 1138 if (!(nfc->data & RXH_IP_SRC) || 1139 !(nfc->data & RXH_IP_DST) || 1140 (nfc->data & RXH_L4_B_0_1) || 1141 (nfc->data & RXH_L4_B_2_3)) 1142 return -EINVAL; 1143 break; 1144 default: 1145 return -EINVAL; 1146 } 1147 1148 /* if we changed something we need to update flags */ 1149 if (flags != adapter->flags) { 1150 struct igc_hw *hw = &adapter->hw; 1151 u32 mrqc = rd32(IGC_MRQC); 1152 1153 if ((flags & UDP_RSS_FLAGS) && 1154 !(adapter->flags & UDP_RSS_FLAGS)) 1155 netdev_err(adapter->netdev, 1156 "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n"); 1157 1158 adapter->flags = flags; 1159 1160 /* Perform hash on these packet types */ 1161 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 | 1162 IGC_MRQC_RSS_FIELD_IPV4_TCP | 1163 IGC_MRQC_RSS_FIELD_IPV6 | 1164 IGC_MRQC_RSS_FIELD_IPV6_TCP; 1165 1166 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP | 1167 IGC_MRQC_RSS_FIELD_IPV6_UDP); 1168 1169 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 1170 mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP; 1171 1172 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 1173 mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP; 1174 1175 wr32(IGC_MRQC, mrqc); 1176 } 1177 1178 return 0; 1179} 1180 1181static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule, 1182 const struct ethtool_rx_flow_spec *fsp) 1183{ 1184 INIT_LIST_HEAD(&rule->list); 1185 1186 rule->action = fsp->ring_cookie; 1187 rule->location = fsp->location; 1188 1189 if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) { 1190 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci); 1191 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI; 1192 } 1193 1194 if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) { 1195 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto); 1196 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE; 1197 } 1198 1199 /* Both source and destination address filters only support the full 1200 * mask. 1201 */ 1202 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) { 1203 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR; 1204 ether_addr_copy(rule->filter.src_addr, 1205 fsp->h_u.ether_spec.h_source); 1206 } 1207 1208 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) { 1209 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR; 1210 ether_addr_copy(rule->filter.dst_addr, 1211 fsp->h_u.ether_spec.h_dest); 1212 } 1213} 1214 1215/** 1216 * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid 1217 * @adapter: Pointer to adapter 1218 * @rule: Rule under evaluation 1219 * 1220 * The driver doesn't support rules with multiple matches so if more than 1221 * one bit in filter flags is set, @rule is considered invalid. 1222 * 1223 * Also, if there is already another rule with the same filter in a different 1224 * location, @rule is considered invalid. 1225 * 1226 * Context: Expects adapter->nfc_rule_lock to be held by caller. 1227 * 1228 * Return: 0 in case of success, negative errno code otherwise. 1229 */ 1230static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter, 1231 struct igc_nfc_rule *rule) 1232{ 1233 struct net_device *dev = adapter->netdev; 1234 u8 flags = rule->filter.match_flags; 1235 struct igc_nfc_rule *tmp; 1236 1237 if (!flags) { 1238 netdev_dbg(dev, "Rule with no match\n"); 1239 return -EINVAL; 1240 } 1241 1242 if (flags & (flags - 1)) { 1243 netdev_dbg(dev, "Rule with multiple matches not supported\n"); 1244 return -EOPNOTSUPP; 1245 } 1246 1247 list_for_each_entry(tmp, &adapter->nfc_rule_list, list) { 1248 if (!memcmp(&rule->filter, &tmp->filter, 1249 sizeof(rule->filter)) && 1250 tmp->location != rule->location) { 1251 netdev_dbg(dev, "Rule already exists\n"); 1252 return -EEXIST; 1253 } 1254 } 1255 1256 return 0; 1257} 1258 1259static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter, 1260 struct ethtool_rxnfc *cmd) 1261{ 1262 struct net_device *netdev = adapter->netdev; 1263 struct ethtool_rx_flow_spec *fsp = 1264 (struct ethtool_rx_flow_spec *)&cmd->fs; 1265 struct igc_nfc_rule *rule, *old_rule; 1266 int err; 1267 1268 if (!(netdev->hw_features & NETIF_F_NTUPLE)) { 1269 netdev_dbg(netdev, "N-tuple filters disabled\n"); 1270 return -EOPNOTSUPP; 1271 } 1272 1273 if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) { 1274 netdev_dbg(netdev, "Only ethernet flow type is supported\n"); 1275 return -EOPNOTSUPP; 1276 } 1277 1278 if ((fsp->flow_type & FLOW_EXT) && 1279 fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK)) { 1280 netdev_dbg(netdev, "VLAN mask not supported\n"); 1281 return -EOPNOTSUPP; 1282 } 1283 1284 if (fsp->ring_cookie >= adapter->num_rx_queues) { 1285 netdev_dbg(netdev, "Invalid action\n"); 1286 return -EINVAL; 1287 } 1288 1289 if (fsp->location >= IGC_MAX_RXNFC_RULES) { 1290 netdev_dbg(netdev, "Invalid location\n"); 1291 return -EINVAL; 1292 } 1293 1294 rule = kzalloc(sizeof(*rule), GFP_KERNEL); 1295 if (!rule) 1296 return -ENOMEM; 1297 1298 igc_ethtool_init_nfc_rule(rule, fsp); 1299 1300 mutex_lock(&adapter->nfc_rule_lock); 1301 1302 err = igc_ethtool_check_nfc_rule(adapter, rule); 1303 if (err) 1304 goto err; 1305 1306 old_rule = igc_get_nfc_rule(adapter, fsp->location); 1307 if (old_rule) 1308 igc_del_nfc_rule(adapter, old_rule); 1309 1310 err = igc_add_nfc_rule(adapter, rule); 1311 if (err) 1312 goto err; 1313 1314 mutex_unlock(&adapter->nfc_rule_lock); 1315 return 0; 1316 1317err: 1318 mutex_unlock(&adapter->nfc_rule_lock); 1319 kfree(rule); 1320 return err; 1321} 1322 1323static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter, 1324 struct ethtool_rxnfc *cmd) 1325{ 1326 struct ethtool_rx_flow_spec *fsp = 1327 (struct ethtool_rx_flow_spec *)&cmd->fs; 1328 struct igc_nfc_rule *rule; 1329 1330 mutex_lock(&adapter->nfc_rule_lock); 1331 1332 rule = igc_get_nfc_rule(adapter, fsp->location); 1333 if (!rule) { 1334 mutex_unlock(&adapter->nfc_rule_lock); 1335 return -EINVAL; 1336 } 1337 1338 igc_del_nfc_rule(adapter, rule); 1339 1340 mutex_unlock(&adapter->nfc_rule_lock); 1341 return 0; 1342} 1343 1344static int igc_ethtool_set_rxnfc(struct net_device *dev, 1345 struct ethtool_rxnfc *cmd) 1346{ 1347 struct igc_adapter *adapter = netdev_priv(dev); 1348 1349 switch (cmd->cmd) { 1350 case ETHTOOL_SRXFH: 1351 return igc_ethtool_set_rss_hash_opt(adapter, cmd); 1352 case ETHTOOL_SRXCLSRLINS: 1353 return igc_ethtool_add_nfc_rule(adapter, cmd); 1354 case ETHTOOL_SRXCLSRLDEL: 1355 return igc_ethtool_del_nfc_rule(adapter, cmd); 1356 default: 1357 return -EOPNOTSUPP; 1358 } 1359} 1360 1361void igc_write_rss_indir_tbl(struct igc_adapter *adapter) 1362{ 1363 struct igc_hw *hw = &adapter->hw; 1364 u32 reg = IGC_RETA(0); 1365 u32 shift = 0; 1366 int i = 0; 1367 1368 while (i < IGC_RETA_SIZE) { 1369 u32 val = 0; 1370 int j; 1371 1372 for (j = 3; j >= 0; j--) { 1373 val <<= 8; 1374 val |= adapter->rss_indir_tbl[i + j]; 1375 } 1376 1377 wr32(reg, val << shift); 1378 reg += 4; 1379 i += 4; 1380 } 1381} 1382 1383static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev) 1384{ 1385 return IGC_RETA_SIZE; 1386} 1387 1388static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 1389 u8 *hfunc) 1390{ 1391 struct igc_adapter *adapter = netdev_priv(netdev); 1392 int i; 1393 1394 if (hfunc) 1395 *hfunc = ETH_RSS_HASH_TOP; 1396 if (!indir) 1397 return 0; 1398 for (i = 0; i < IGC_RETA_SIZE; i++) 1399 indir[i] = adapter->rss_indir_tbl[i]; 1400 1401 return 0; 1402} 1403 1404static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir, 1405 const u8 *key, const u8 hfunc) 1406{ 1407 struct igc_adapter *adapter = netdev_priv(netdev); 1408 u32 num_queues; 1409 int i; 1410 1411 /* We do not allow change in unsupported parameters */ 1412 if (key || 1413 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) 1414 return -EOPNOTSUPP; 1415 if (!indir) 1416 return 0; 1417 1418 num_queues = adapter->rss_queues; 1419 1420 /* Verify user input. */ 1421 for (i = 0; i < IGC_RETA_SIZE; i++) 1422 if (indir[i] >= num_queues) 1423 return -EINVAL; 1424 1425 for (i = 0; i < IGC_RETA_SIZE; i++) 1426 adapter->rss_indir_tbl[i] = indir[i]; 1427 1428 igc_write_rss_indir_tbl(adapter); 1429 1430 return 0; 1431} 1432 1433static void igc_ethtool_get_channels(struct net_device *netdev, 1434 struct ethtool_channels *ch) 1435{ 1436 struct igc_adapter *adapter = netdev_priv(netdev); 1437 1438 /* Report maximum channels */ 1439 ch->max_combined = igc_get_max_rss_queues(adapter); 1440 1441 /* Report info for other vector */ 1442 if (adapter->flags & IGC_FLAG_HAS_MSIX) { 1443 ch->max_other = NON_Q_VECTORS; 1444 ch->other_count = NON_Q_VECTORS; 1445 } 1446 1447 ch->combined_count = adapter->rss_queues; 1448} 1449 1450static int igc_ethtool_set_channels(struct net_device *netdev, 1451 struct ethtool_channels *ch) 1452{ 1453 struct igc_adapter *adapter = netdev_priv(netdev); 1454 unsigned int count = ch->combined_count; 1455 unsigned int max_combined = 0; 1456 1457 /* Verify they are not requesting separate vectors */ 1458 if (!count || ch->rx_count || ch->tx_count) 1459 return -EINVAL; 1460 1461 /* Verify other_count is valid and has not been changed */ 1462 if (ch->other_count != NON_Q_VECTORS) 1463 return -EINVAL; 1464 1465 /* Verify the number of channels doesn't exceed hw limits */ 1466 max_combined = igc_get_max_rss_queues(adapter); 1467 if (count > max_combined) 1468 return -EINVAL; 1469 1470 if (count != adapter->rss_queues) { 1471 adapter->rss_queues = count; 1472 igc_set_flag_queue_pairs(adapter, max_combined); 1473 1474 /* Hardware has to reinitialize queues and interrupts to 1475 * match the new configuration. 1476 */ 1477 return igc_reinit_queues(adapter); 1478 } 1479 1480 return 0; 1481} 1482 1483static int igc_ethtool_get_ts_info(struct net_device *dev, 1484 struct ethtool_ts_info *info) 1485{ 1486 struct igc_adapter *adapter = netdev_priv(dev); 1487 1488 if (adapter->ptp_clock) 1489 info->phc_index = ptp_clock_index(adapter->ptp_clock); 1490 else 1491 info->phc_index = -1; 1492 1493 switch (adapter->hw.mac.type) { 1494 case igc_i225: 1495 info->so_timestamping = 1496 SOF_TIMESTAMPING_TX_SOFTWARE | 1497 SOF_TIMESTAMPING_RX_SOFTWARE | 1498 SOF_TIMESTAMPING_SOFTWARE | 1499 SOF_TIMESTAMPING_TX_HARDWARE | 1500 SOF_TIMESTAMPING_RX_HARDWARE | 1501 SOF_TIMESTAMPING_RAW_HARDWARE; 1502 1503 info->tx_types = 1504 BIT(HWTSTAMP_TX_OFF) | 1505 BIT(HWTSTAMP_TX_ON); 1506 1507 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE); 1508 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL); 1509 1510 return 0; 1511 default: 1512 return -EOPNOTSUPP; 1513 } 1514} 1515 1516static u32 igc_ethtool_get_priv_flags(struct net_device *netdev) 1517{ 1518 struct igc_adapter *adapter = netdev_priv(netdev); 1519 u32 priv_flags = 0; 1520 1521 if (adapter->flags & IGC_FLAG_RX_LEGACY) 1522 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX; 1523 1524 return priv_flags; 1525} 1526 1527static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags) 1528{ 1529 struct igc_adapter *adapter = netdev_priv(netdev); 1530 unsigned int flags = adapter->flags; 1531 1532 flags &= ~IGC_FLAG_RX_LEGACY; 1533 if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX) 1534 flags |= IGC_FLAG_RX_LEGACY; 1535 1536 if (flags != adapter->flags) { 1537 adapter->flags = flags; 1538 1539 /* reset interface to repopulate queues */ 1540 if (netif_running(netdev)) 1541 igc_reinit_locked(adapter); 1542 } 1543 1544 return 0; 1545} 1546 1547static int igc_ethtool_get_eee(struct net_device *netdev, 1548 struct ethtool_eee *edata) 1549{ 1550 struct igc_adapter *adapter = netdev_priv(netdev); 1551 struct igc_hw *hw = &adapter->hw; 1552 u32 eeer; 1553 1554 if (hw->dev_spec._base.eee_enable) 1555 edata->advertised = 1556 mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert); 1557 1558 *edata = adapter->eee; 1559 edata->supported = SUPPORTED_Autoneg; 1560 1561 eeer = rd32(IGC_EEER); 1562 1563 /* EEE status on negotiated link */ 1564 if (eeer & IGC_EEER_EEE_NEG) 1565 edata->eee_active = true; 1566 1567 if (eeer & IGC_EEER_TX_LPI_EN) 1568 edata->tx_lpi_enabled = true; 1569 1570 edata->eee_enabled = hw->dev_spec._base.eee_enable; 1571 1572 edata->advertised = SUPPORTED_Autoneg; 1573 edata->lp_advertised = SUPPORTED_Autoneg; 1574 1575 /* Report correct negotiated EEE status for devices that 1576 * wrongly report EEE at half-duplex 1577 */ 1578 if (adapter->link_duplex == HALF_DUPLEX) { 1579 edata->eee_enabled = false; 1580 edata->eee_active = false; 1581 edata->tx_lpi_enabled = false; 1582 edata->advertised &= ~edata->advertised; 1583 } 1584 1585 return 0; 1586} 1587 1588static int igc_ethtool_set_eee(struct net_device *netdev, 1589 struct ethtool_eee *edata) 1590{ 1591 struct igc_adapter *adapter = netdev_priv(netdev); 1592 struct igc_hw *hw = &adapter->hw; 1593 struct ethtool_eee eee_curr; 1594 s32 ret_val; 1595 1596 memset(&eee_curr, 0, sizeof(struct ethtool_eee)); 1597 1598 ret_val = igc_ethtool_get_eee(netdev, &eee_curr); 1599 if (ret_val) { 1600 netdev_err(netdev, 1601 "Problem setting EEE advertisement options\n"); 1602 return -EINVAL; 1603 } 1604 1605 if (eee_curr.eee_enabled) { 1606 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) { 1607 netdev_err(netdev, 1608 "Setting EEE tx-lpi is not supported\n"); 1609 return -EINVAL; 1610 } 1611 1612 /* Tx LPI timer is not implemented currently */ 1613 if (edata->tx_lpi_timer) { 1614 netdev_err(netdev, 1615 "Setting EEE Tx LPI timer is not supported\n"); 1616 return -EINVAL; 1617 } 1618 } else if (!edata->eee_enabled) { 1619 netdev_err(netdev, 1620 "Setting EEE options are not supported with EEE disabled\n"); 1621 return -EINVAL; 1622 } 1623 1624 adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised); 1625 if (hw->dev_spec._base.eee_enable != edata->eee_enabled) { 1626 hw->dev_spec._base.eee_enable = edata->eee_enabled; 1627 adapter->flags |= IGC_FLAG_EEE; 1628 1629 /* reset link */ 1630 if (netif_running(netdev)) 1631 igc_reinit_locked(adapter); 1632 else 1633 igc_reset(adapter); 1634 } 1635 1636 return 0; 1637} 1638 1639static int igc_ethtool_begin(struct net_device *netdev) 1640{ 1641 struct igc_adapter *adapter = netdev_priv(netdev); 1642 1643 pm_runtime_get_sync(&adapter->pdev->dev); 1644 return 0; 1645} 1646 1647static void igc_ethtool_complete(struct net_device *netdev) 1648{ 1649 struct igc_adapter *adapter = netdev_priv(netdev); 1650 1651 pm_runtime_put(&adapter->pdev->dev); 1652} 1653 1654static int igc_ethtool_get_link_ksettings(struct net_device *netdev, 1655 struct ethtool_link_ksettings *cmd) 1656{ 1657 struct igc_adapter *adapter = netdev_priv(netdev); 1658 struct igc_hw *hw = &adapter->hw; 1659 u32 status; 1660 u32 speed; 1661 1662 ethtool_link_ksettings_zero_link_mode(cmd, supported); 1663 ethtool_link_ksettings_zero_link_mode(cmd, advertising); 1664 1665 /* supported link modes */ 1666 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half); 1667 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full); 1668 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half); 1669 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full); 1670 ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full); 1671 ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full); 1672 1673 /* twisted pair */ 1674 cmd->base.port = PORT_TP; 1675 cmd->base.phy_address = hw->phy.addr; 1676 ethtool_link_ksettings_add_link_mode(cmd, supported, TP); 1677 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); 1678 1679 /* advertising link modes */ 1680 if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF) 1681 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half); 1682 if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL) 1683 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full); 1684 if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF) 1685 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half); 1686 if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL) 1687 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full); 1688 if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL) 1689 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full); 1690 if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL) 1691 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full); 1692 1693 /* set autoneg settings */ 1694 if (hw->mac.autoneg == 1) { 1695 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 1696 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1697 Autoneg); 1698 } 1699 1700 /* Set pause flow control settings */ 1701 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); 1702 1703 switch (hw->fc.requested_mode) { 1704 case igc_fc_full: 1705 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1706 break; 1707 case igc_fc_rx_pause: 1708 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1709 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1710 Asym_Pause); 1711 break; 1712 case igc_fc_tx_pause: 1713 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1714 Asym_Pause); 1715 break; 1716 default: 1717 break; 1718 } 1719 1720 status = pm_runtime_suspended(&adapter->pdev->dev) ? 1721 0 : rd32(IGC_STATUS); 1722 1723 if (status & IGC_STATUS_LU) { 1724 if (status & IGC_STATUS_SPEED_1000) { 1725 /* For I225, STATUS will indicate 1G speed in both 1726 * 1 Gbps and 2.5 Gbps link modes. 1727 * An additional bit is used 1728 * to differentiate between 1 Gbps and 2.5 Gbps. 1729 */ 1730 if (hw->mac.type == igc_i225 && 1731 (status & IGC_STATUS_SPEED_2500)) { 1732 speed = SPEED_2500; 1733 } else { 1734 speed = SPEED_1000; 1735 } 1736 } else if (status & IGC_STATUS_SPEED_100) { 1737 speed = SPEED_100; 1738 } else { 1739 speed = SPEED_10; 1740 } 1741 if ((status & IGC_STATUS_FD) || 1742 hw->phy.media_type != igc_media_type_copper) 1743 cmd->base.duplex = DUPLEX_FULL; 1744 else 1745 cmd->base.duplex = DUPLEX_HALF; 1746 } else { 1747 speed = SPEED_UNKNOWN; 1748 cmd->base.duplex = DUPLEX_UNKNOWN; 1749 } 1750 cmd->base.speed = speed; 1751 if (hw->mac.autoneg) 1752 cmd->base.autoneg = AUTONEG_ENABLE; 1753 else 1754 cmd->base.autoneg = AUTONEG_DISABLE; 1755 1756 /* MDI-X => 2; MDI =>1; Invalid =>0 */ 1757 if (hw->phy.media_type == igc_media_type_copper) 1758 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X : 1759 ETH_TP_MDI; 1760 else 1761 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID; 1762 1763 if (hw->phy.mdix == AUTO_ALL_MODES) 1764 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; 1765 else 1766 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix; 1767 1768 return 0; 1769} 1770 1771static int 1772igc_ethtool_set_link_ksettings(struct net_device *netdev, 1773 const struct ethtool_link_ksettings *cmd) 1774{ 1775 struct igc_adapter *adapter = netdev_priv(netdev); 1776 struct net_device *dev = adapter->netdev; 1777 struct igc_hw *hw = &adapter->hw; 1778 u16 advertised = 0; 1779 1780 /* When adapter in resetting mode, autoneg/speed/duplex 1781 * cannot be changed 1782 */ 1783 if (igc_check_reset_block(hw)) { 1784 netdev_err(dev, "Cannot change link characteristics when reset is active\n"); 1785 return -EINVAL; 1786 } 1787 1788 /* MDI setting is only allowed when autoneg enabled because 1789 * some hardware doesn't allow MDI setting when speed or 1790 * duplex is forced. 1791 */ 1792 if (cmd->base.eth_tp_mdix_ctrl) { 1793 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO && 1794 cmd->base.autoneg != AUTONEG_ENABLE) { 1795 netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n"); 1796 return -EINVAL; 1797 } 1798 } 1799 1800 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 1801 usleep_range(1000, 2000); 1802 1803 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1804 2500baseT_Full)) 1805 advertised |= ADVERTISE_2500_FULL; 1806 1807 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1808 1000baseT_Full)) 1809 advertised |= ADVERTISE_1000_FULL; 1810 1811 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1812 100baseT_Full)) 1813 advertised |= ADVERTISE_100_FULL; 1814 1815 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1816 100baseT_Half)) 1817 advertised |= ADVERTISE_100_HALF; 1818 1819 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1820 10baseT_Full)) 1821 advertised |= ADVERTISE_10_FULL; 1822 1823 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1824 10baseT_Half)) 1825 advertised |= ADVERTISE_10_HALF; 1826 1827 if (cmd->base.autoneg == AUTONEG_ENABLE) { 1828 hw->mac.autoneg = 1; 1829 hw->phy.autoneg_advertised = advertised; 1830 if (adapter->fc_autoneg) 1831 hw->fc.requested_mode = igc_fc_default; 1832 } else { 1833 netdev_info(dev, "Force mode currently not supported\n"); 1834 } 1835 1836 /* MDI-X => 2; MDI => 1; Auto => 3 */ 1837 if (cmd->base.eth_tp_mdix_ctrl) { 1838 /* fix up the value for auto (3 => 0) as zero is mapped 1839 * internally to auto 1840 */ 1841 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO) 1842 hw->phy.mdix = AUTO_ALL_MODES; 1843 else 1844 hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl; 1845 } 1846 1847 /* reset the link */ 1848 if (netif_running(adapter->netdev)) { 1849 igc_down(adapter); 1850 igc_up(adapter); 1851 } else { 1852 igc_reset(adapter); 1853 } 1854 1855 clear_bit(__IGC_RESETTING, &adapter->state); 1856 1857 return 0; 1858} 1859 1860static void igc_ethtool_diag_test(struct net_device *netdev, 1861 struct ethtool_test *eth_test, u64 *data) 1862{ 1863 struct igc_adapter *adapter = netdev_priv(netdev); 1864 bool if_running = netif_running(netdev); 1865 1866 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 1867 netdev_info(adapter->netdev, "Offline testing starting"); 1868 set_bit(__IGC_TESTING, &adapter->state); 1869 1870 /* Link test performed before hardware reset so autoneg doesn't 1871 * interfere with test result 1872 */ 1873 if (!igc_link_test(adapter, &data[TEST_LINK])) 1874 eth_test->flags |= ETH_TEST_FL_FAILED; 1875 1876 if (if_running) 1877 igc_close(netdev); 1878 else 1879 igc_reset(adapter); 1880 1881 netdev_info(adapter->netdev, "Register testing starting"); 1882 if (!igc_reg_test(adapter, &data[TEST_REG])) 1883 eth_test->flags |= ETH_TEST_FL_FAILED; 1884 1885 igc_reset(adapter); 1886 1887 netdev_info(adapter->netdev, "EEPROM testing starting"); 1888 if (!igc_eeprom_test(adapter, &data[TEST_EEP])) 1889 eth_test->flags |= ETH_TEST_FL_FAILED; 1890 1891 igc_reset(adapter); 1892 1893 /* loopback and interrupt tests 1894 * will be implemented in the future 1895 */ 1896 data[TEST_LOOP] = 0; 1897 data[TEST_IRQ] = 0; 1898 1899 clear_bit(__IGC_TESTING, &adapter->state); 1900 if (if_running) 1901 igc_open(netdev); 1902 } else { 1903 netdev_info(adapter->netdev, "Online testing starting"); 1904 1905 /* register, eeprom, intr and loopback tests not run online */ 1906 data[TEST_REG] = 0; 1907 data[TEST_EEP] = 0; 1908 data[TEST_IRQ] = 0; 1909 data[TEST_LOOP] = 0; 1910 1911 if (!igc_link_test(adapter, &data[TEST_LINK])) 1912 eth_test->flags |= ETH_TEST_FL_FAILED; 1913 } 1914 1915 msleep_interruptible(4 * 1000); 1916} 1917 1918static const struct ethtool_ops igc_ethtool_ops = { 1919 .supported_coalesce_params = ETHTOOL_COALESCE_USECS, 1920 .get_drvinfo = igc_ethtool_get_drvinfo, 1921 .get_regs_len = igc_ethtool_get_regs_len, 1922 .get_regs = igc_ethtool_get_regs, 1923 .get_wol = igc_ethtool_get_wol, 1924 .set_wol = igc_ethtool_set_wol, 1925 .get_msglevel = igc_ethtool_get_msglevel, 1926 .set_msglevel = igc_ethtool_set_msglevel, 1927 .nway_reset = igc_ethtool_nway_reset, 1928 .get_link = igc_ethtool_get_link, 1929 .get_eeprom_len = igc_ethtool_get_eeprom_len, 1930 .get_eeprom = igc_ethtool_get_eeprom, 1931 .set_eeprom = igc_ethtool_set_eeprom, 1932 .get_ringparam = igc_ethtool_get_ringparam, 1933 .set_ringparam = igc_ethtool_set_ringparam, 1934 .get_pauseparam = igc_ethtool_get_pauseparam, 1935 .set_pauseparam = igc_ethtool_set_pauseparam, 1936 .get_strings = igc_ethtool_get_strings, 1937 .get_sset_count = igc_ethtool_get_sset_count, 1938 .get_ethtool_stats = igc_ethtool_get_stats, 1939 .get_coalesce = igc_ethtool_get_coalesce, 1940 .set_coalesce = igc_ethtool_set_coalesce, 1941 .get_rxnfc = igc_ethtool_get_rxnfc, 1942 .set_rxnfc = igc_ethtool_set_rxnfc, 1943 .get_rxfh_indir_size = igc_ethtool_get_rxfh_indir_size, 1944 .get_rxfh = igc_ethtool_get_rxfh, 1945 .set_rxfh = igc_ethtool_set_rxfh, 1946 .get_ts_info = igc_ethtool_get_ts_info, 1947 .get_channels = igc_ethtool_get_channels, 1948 .set_channels = igc_ethtool_set_channels, 1949 .get_priv_flags = igc_ethtool_get_priv_flags, 1950 .set_priv_flags = igc_ethtool_set_priv_flags, 1951 .get_eee = igc_ethtool_get_eee, 1952 .set_eee = igc_ethtool_set_eee, 1953 .begin = igc_ethtool_begin, 1954 .complete = igc_ethtool_complete, 1955 .get_link_ksettings = igc_ethtool_get_link_ksettings, 1956 .set_link_ksettings = igc_ethtool_set_link_ksettings, 1957 .self_test = igc_ethtool_diag_test, 1958}; 1959 1960void igc_ethtool_set_ops(struct net_device *netdev) 1961{ 1962 netdev->ethtool_ops = &igc_ethtool_ops; 1963} 1964