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 IGC_STAT("tx_lpi_counter", stats.tlpic), 69 IGC_STAT("rx_lpi_counter", stats.rlpic), 70 IGC_STAT("qbv_config_change_errors", qbv_config_change_errors), 71}; 72 73#define IGC_NETDEV_STAT(_net_stat) { \ 74 .stat_string = __stringify(_net_stat), \ 75 .sizeof_stat = sizeof_field(struct rtnl_link_stats64, _net_stat), \ 76 .stat_offset = offsetof(struct rtnl_link_stats64, _net_stat) \ 77} 78 79static const struct igc_stats igc_gstrings_net_stats[] = { 80 IGC_NETDEV_STAT(rx_errors), 81 IGC_NETDEV_STAT(tx_errors), 82 IGC_NETDEV_STAT(tx_dropped), 83 IGC_NETDEV_STAT(rx_length_errors), 84 IGC_NETDEV_STAT(rx_over_errors), 85 IGC_NETDEV_STAT(rx_frame_errors), 86 IGC_NETDEV_STAT(rx_fifo_errors), 87 IGC_NETDEV_STAT(tx_fifo_errors), 88 IGC_NETDEV_STAT(tx_heartbeat_errors) 89}; 90 91enum igc_diagnostics_results { 92 TEST_REG = 0, 93 TEST_EEP, 94 TEST_IRQ, 95 TEST_LOOP, 96 TEST_LINK 97}; 98 99static const char igc_gstrings_test[][ETH_GSTRING_LEN] = { 100 [TEST_REG] = "Register test (offline)", 101 [TEST_EEP] = "Eeprom test (offline)", 102 [TEST_IRQ] = "Interrupt test (offline)", 103 [TEST_LOOP] = "Loopback test (offline)", 104 [TEST_LINK] = "Link test (on/offline)" 105}; 106 107#define IGC_TEST_LEN (sizeof(igc_gstrings_test) / ETH_GSTRING_LEN) 108 109#define IGC_GLOBAL_STATS_LEN \ 110 (sizeof(igc_gstrings_stats) / sizeof(struct igc_stats)) 111#define IGC_NETDEV_STATS_LEN \ 112 (sizeof(igc_gstrings_net_stats) / sizeof(struct igc_stats)) 113#define IGC_RX_QUEUE_STATS_LEN \ 114 (sizeof(struct igc_rx_queue_stats) / sizeof(u64)) 115#define IGC_TX_QUEUE_STATS_LEN 3 /* packets, bytes, restart_queue */ 116#define IGC_QUEUE_STATS_LEN \ 117 ((((struct igc_adapter *)netdev_priv(netdev))->num_rx_queues * \ 118 IGC_RX_QUEUE_STATS_LEN) + \ 119 (((struct igc_adapter *)netdev_priv(netdev))->num_tx_queues * \ 120 IGC_TX_QUEUE_STATS_LEN)) 121#define IGC_STATS_LEN \ 122 (IGC_GLOBAL_STATS_LEN + IGC_NETDEV_STATS_LEN + IGC_QUEUE_STATS_LEN) 123 124static const char igc_priv_flags_strings[][ETH_GSTRING_LEN] = { 125#define IGC_PRIV_FLAGS_LEGACY_RX BIT(0) 126 "legacy-rx", 127}; 128 129#define IGC_PRIV_FLAGS_STR_LEN ARRAY_SIZE(igc_priv_flags_strings) 130 131static void igc_ethtool_get_drvinfo(struct net_device *netdev, 132 struct ethtool_drvinfo *drvinfo) 133{ 134 struct igc_adapter *adapter = netdev_priv(netdev); 135 struct igc_hw *hw = &adapter->hw; 136 u16 nvm_version = 0; 137 u16 gphy_version; 138 139 strscpy(drvinfo->driver, igc_driver_name, sizeof(drvinfo->driver)); 140 141 /* NVM image version is reported as firmware version for i225 device */ 142 hw->nvm.ops.read(hw, IGC_NVM_DEV_STARTER, 1, &nvm_version); 143 144 /* gPHY firmware version is reported as PHY FW version */ 145 gphy_version = igc_read_phy_fw_version(hw); 146 147 scnprintf(adapter->fw_version, 148 sizeof(adapter->fw_version), 149 "%x:%x", 150 nvm_version, 151 gphy_version); 152 153 strscpy(drvinfo->fw_version, adapter->fw_version, 154 sizeof(drvinfo->fw_version)); 155 156 strscpy(drvinfo->bus_info, pci_name(adapter->pdev), 157 sizeof(drvinfo->bus_info)); 158 159 drvinfo->n_priv_flags = IGC_PRIV_FLAGS_STR_LEN; 160} 161 162static int igc_ethtool_get_regs_len(struct net_device *netdev) 163{ 164 return IGC_REGS_LEN * sizeof(u32); 165} 166 167static void igc_ethtool_get_regs(struct net_device *netdev, 168 struct ethtool_regs *regs, void *p) 169{ 170 struct igc_adapter *adapter = netdev_priv(netdev); 171 struct igc_hw *hw = &adapter->hw; 172 u32 *regs_buff = p; 173 u8 i; 174 175 memset(p, 0, IGC_REGS_LEN * sizeof(u32)); 176 177 regs->version = (2u << 24) | (hw->revision_id << 16) | hw->device_id; 178 179 /* General Registers */ 180 regs_buff[0] = rd32(IGC_CTRL); 181 regs_buff[1] = rd32(IGC_STATUS); 182 regs_buff[2] = rd32(IGC_CTRL_EXT); 183 regs_buff[3] = rd32(IGC_MDIC); 184 regs_buff[4] = rd32(IGC_CONNSW); 185 186 /* NVM Register */ 187 regs_buff[5] = rd32(IGC_EECD); 188 189 /* Interrupt */ 190 /* Reading EICS for EICR because they read the 191 * same but EICS does not clear on read 192 */ 193 regs_buff[6] = rd32(IGC_EICS); 194 regs_buff[7] = rd32(IGC_EICS); 195 regs_buff[8] = rd32(IGC_EIMS); 196 regs_buff[9] = rd32(IGC_EIMC); 197 regs_buff[10] = rd32(IGC_EIAC); 198 regs_buff[11] = rd32(IGC_EIAM); 199 /* Reading ICS for ICR because they read the 200 * same but ICS does not clear on read 201 */ 202 regs_buff[12] = rd32(IGC_ICS); 203 regs_buff[13] = rd32(IGC_ICS); 204 regs_buff[14] = rd32(IGC_IMS); 205 regs_buff[15] = rd32(IGC_IMC); 206 regs_buff[16] = rd32(IGC_IAC); 207 regs_buff[17] = rd32(IGC_IAM); 208 209 /* Flow Control */ 210 regs_buff[18] = rd32(IGC_FCAL); 211 regs_buff[19] = rd32(IGC_FCAH); 212 regs_buff[20] = rd32(IGC_FCTTV); 213 regs_buff[21] = rd32(IGC_FCRTL); 214 regs_buff[22] = rd32(IGC_FCRTH); 215 regs_buff[23] = rd32(IGC_FCRTV); 216 217 /* Receive */ 218 regs_buff[24] = rd32(IGC_RCTL); 219 regs_buff[25] = rd32(IGC_RXCSUM); 220 regs_buff[26] = rd32(IGC_RLPML); 221 regs_buff[27] = rd32(IGC_RFCTL); 222 223 /* Transmit */ 224 regs_buff[28] = rd32(IGC_TCTL); 225 regs_buff[29] = rd32(IGC_TIPG); 226 227 /* Wake Up */ 228 229 /* MAC */ 230 231 /* Statistics */ 232 regs_buff[30] = adapter->stats.crcerrs; 233 regs_buff[31] = adapter->stats.algnerrc; 234 regs_buff[32] = adapter->stats.symerrs; 235 regs_buff[33] = adapter->stats.rxerrc; 236 regs_buff[34] = adapter->stats.mpc; 237 regs_buff[35] = adapter->stats.scc; 238 regs_buff[36] = adapter->stats.ecol; 239 regs_buff[37] = adapter->stats.mcc; 240 regs_buff[38] = adapter->stats.latecol; 241 regs_buff[39] = adapter->stats.colc; 242 regs_buff[40] = adapter->stats.dc; 243 regs_buff[41] = adapter->stats.tncrs; 244 regs_buff[42] = adapter->stats.sec; 245 regs_buff[43] = adapter->stats.htdpmc; 246 regs_buff[44] = adapter->stats.rlec; 247 regs_buff[45] = adapter->stats.xonrxc; 248 regs_buff[46] = adapter->stats.xontxc; 249 regs_buff[47] = adapter->stats.xoffrxc; 250 regs_buff[48] = adapter->stats.xofftxc; 251 regs_buff[49] = adapter->stats.fcruc; 252 regs_buff[50] = adapter->stats.prc64; 253 regs_buff[51] = adapter->stats.prc127; 254 regs_buff[52] = adapter->stats.prc255; 255 regs_buff[53] = adapter->stats.prc511; 256 regs_buff[54] = adapter->stats.prc1023; 257 regs_buff[55] = adapter->stats.prc1522; 258 regs_buff[56] = adapter->stats.gprc; 259 regs_buff[57] = adapter->stats.bprc; 260 regs_buff[58] = adapter->stats.mprc; 261 regs_buff[59] = adapter->stats.gptc; 262 regs_buff[60] = adapter->stats.gorc; 263 regs_buff[61] = adapter->stats.gotc; 264 regs_buff[62] = adapter->stats.rnbc; 265 regs_buff[63] = adapter->stats.ruc; 266 regs_buff[64] = adapter->stats.rfc; 267 regs_buff[65] = adapter->stats.roc; 268 regs_buff[66] = adapter->stats.rjc; 269 regs_buff[67] = adapter->stats.mgprc; 270 regs_buff[68] = adapter->stats.mgpdc; 271 regs_buff[69] = adapter->stats.mgptc; 272 regs_buff[70] = adapter->stats.tor; 273 regs_buff[71] = adapter->stats.tot; 274 regs_buff[72] = adapter->stats.tpr; 275 regs_buff[73] = adapter->stats.tpt; 276 regs_buff[74] = adapter->stats.ptc64; 277 regs_buff[75] = adapter->stats.ptc127; 278 regs_buff[76] = adapter->stats.ptc255; 279 regs_buff[77] = adapter->stats.ptc511; 280 regs_buff[78] = adapter->stats.ptc1023; 281 regs_buff[79] = adapter->stats.ptc1522; 282 regs_buff[80] = adapter->stats.mptc; 283 regs_buff[81] = adapter->stats.bptc; 284 regs_buff[82] = adapter->stats.tsctc; 285 regs_buff[83] = adapter->stats.iac; 286 regs_buff[84] = adapter->stats.rpthc; 287 regs_buff[85] = adapter->stats.hgptc; 288 regs_buff[86] = adapter->stats.hgorc; 289 regs_buff[87] = adapter->stats.hgotc; 290 regs_buff[88] = adapter->stats.lenerrs; 291 regs_buff[89] = adapter->stats.scvpc; 292 regs_buff[90] = adapter->stats.hrmpc; 293 294 for (i = 0; i < 4; i++) 295 regs_buff[91 + i] = rd32(IGC_SRRCTL(i)); 296 for (i = 0; i < 4; i++) 297 regs_buff[95 + i] = rd32(IGC_PSRTYPE(i)); 298 for (i = 0; i < 4; i++) 299 regs_buff[99 + i] = rd32(IGC_RDBAL(i)); 300 for (i = 0; i < 4; i++) 301 regs_buff[103 + i] = rd32(IGC_RDBAH(i)); 302 for (i = 0; i < 4; i++) 303 regs_buff[107 + i] = rd32(IGC_RDLEN(i)); 304 for (i = 0; i < 4; i++) 305 regs_buff[111 + i] = rd32(IGC_RDH(i)); 306 for (i = 0; i < 4; i++) 307 regs_buff[115 + i] = rd32(IGC_RDT(i)); 308 for (i = 0; i < 4; i++) 309 regs_buff[119 + i] = rd32(IGC_RXDCTL(i)); 310 311 for (i = 0; i < 10; i++) 312 regs_buff[123 + i] = rd32(IGC_EITR(i)); 313 for (i = 0; i < 16; i++) 314 regs_buff[139 + i] = rd32(IGC_RAL(i)); 315 for (i = 0; i < 16; i++) 316 regs_buff[145 + i] = rd32(IGC_RAH(i)); 317 318 for (i = 0; i < 4; i++) 319 regs_buff[149 + i] = rd32(IGC_TDBAL(i)); 320 for (i = 0; i < 4; i++) 321 regs_buff[152 + i] = rd32(IGC_TDBAH(i)); 322 for (i = 0; i < 4; i++) 323 regs_buff[156 + i] = rd32(IGC_TDLEN(i)); 324 for (i = 0; i < 4; i++) 325 regs_buff[160 + i] = rd32(IGC_TDH(i)); 326 for (i = 0; i < 4; i++) 327 regs_buff[164 + i] = rd32(IGC_TDT(i)); 328 for (i = 0; i < 4; i++) 329 regs_buff[168 + i] = rd32(IGC_TXDCTL(i)); 330 331 /* XXX: Due to a bug few lines above, RAL and RAH registers are 332 * overwritten. To preserve the ABI, we write these registers again in 333 * regs_buff. 334 */ 335 for (i = 0; i < 16; i++) 336 regs_buff[172 + i] = rd32(IGC_RAL(i)); 337 for (i = 0; i < 16; i++) 338 regs_buff[188 + i] = rd32(IGC_RAH(i)); 339 340 regs_buff[204] = rd32(IGC_VLANPQF); 341 342 for (i = 0; i < 8; i++) 343 regs_buff[205 + i] = rd32(IGC_ETQF(i)); 344 345 regs_buff[213] = adapter->stats.tlpic; 346 regs_buff[214] = adapter->stats.rlpic; 347} 348 349static void igc_ethtool_get_wol(struct net_device *netdev, 350 struct ethtool_wolinfo *wol) 351{ 352 struct igc_adapter *adapter = netdev_priv(netdev); 353 354 wol->wolopts = 0; 355 356 if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED)) 357 return; 358 359 wol->supported = WAKE_UCAST | WAKE_MCAST | 360 WAKE_BCAST | WAKE_MAGIC | 361 WAKE_PHY; 362 363 /* apply any specific unsupported masks here */ 364 switch (adapter->hw.device_id) { 365 default: 366 break; 367 } 368 369 if (adapter->wol & IGC_WUFC_EX) 370 wol->wolopts |= WAKE_UCAST; 371 if (adapter->wol & IGC_WUFC_MC) 372 wol->wolopts |= WAKE_MCAST; 373 if (adapter->wol & IGC_WUFC_BC) 374 wol->wolopts |= WAKE_BCAST; 375 if (adapter->wol & IGC_WUFC_MAG) 376 wol->wolopts |= WAKE_MAGIC; 377 if (adapter->wol & IGC_WUFC_LNKC) 378 wol->wolopts |= WAKE_PHY; 379} 380 381static int igc_ethtool_set_wol(struct net_device *netdev, 382 struct ethtool_wolinfo *wol) 383{ 384 struct igc_adapter *adapter = netdev_priv(netdev); 385 386 if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE | WAKE_FILTER)) 387 return -EOPNOTSUPP; 388 389 if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED)) 390 return wol->wolopts ? -EOPNOTSUPP : 0; 391 392 /* these settings will always override what we currently have */ 393 adapter->wol = 0; 394 395 if (wol->wolopts & WAKE_UCAST) 396 adapter->wol |= IGC_WUFC_EX; 397 if (wol->wolopts & WAKE_MCAST) 398 adapter->wol |= IGC_WUFC_MC; 399 if (wol->wolopts & WAKE_BCAST) 400 adapter->wol |= IGC_WUFC_BC; 401 if (wol->wolopts & WAKE_MAGIC) 402 adapter->wol |= IGC_WUFC_MAG; 403 if (wol->wolopts & WAKE_PHY) 404 adapter->wol |= IGC_WUFC_LNKC; 405 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); 406 407 return 0; 408} 409 410static u32 igc_ethtool_get_msglevel(struct net_device *netdev) 411{ 412 struct igc_adapter *adapter = netdev_priv(netdev); 413 414 return adapter->msg_enable; 415} 416 417static void igc_ethtool_set_msglevel(struct net_device *netdev, u32 data) 418{ 419 struct igc_adapter *adapter = netdev_priv(netdev); 420 421 adapter->msg_enable = data; 422} 423 424static int igc_ethtool_nway_reset(struct net_device *netdev) 425{ 426 struct igc_adapter *adapter = netdev_priv(netdev); 427 428 if (netif_running(netdev)) 429 igc_reinit_locked(adapter); 430 return 0; 431} 432 433static u32 igc_ethtool_get_link(struct net_device *netdev) 434{ 435 struct igc_adapter *adapter = netdev_priv(netdev); 436 struct igc_mac_info *mac = &adapter->hw.mac; 437 438 /* If the link is not reported up to netdev, interrupts are disabled, 439 * and so the physical link state may have changed since we last 440 * looked. Set get_link_status to make sure that the true link 441 * state is interrogated, rather than pulling a cached and possibly 442 * stale link state from the driver. 443 */ 444 if (!netif_carrier_ok(netdev)) 445 mac->get_link_status = 1; 446 447 return igc_has_link(adapter); 448} 449 450static int igc_ethtool_get_eeprom_len(struct net_device *netdev) 451{ 452 struct igc_adapter *adapter = netdev_priv(netdev); 453 454 return adapter->hw.nvm.word_size * 2; 455} 456 457static int igc_ethtool_get_eeprom(struct net_device *netdev, 458 struct ethtool_eeprom *eeprom, u8 *bytes) 459{ 460 struct igc_adapter *adapter = netdev_priv(netdev); 461 struct igc_hw *hw = &adapter->hw; 462 int first_word, last_word; 463 u16 *eeprom_buff; 464 int ret_val = 0; 465 u16 i; 466 467 if (eeprom->len == 0) 468 return -EINVAL; 469 470 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 471 472 first_word = eeprom->offset >> 1; 473 last_word = (eeprom->offset + eeprom->len - 1) >> 1; 474 475 eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16), 476 GFP_KERNEL); 477 if (!eeprom_buff) 478 return -ENOMEM; 479 480 if (hw->nvm.type == igc_nvm_eeprom_spi) { 481 ret_val = hw->nvm.ops.read(hw, first_word, 482 last_word - first_word + 1, 483 eeprom_buff); 484 } else { 485 for (i = 0; i < last_word - first_word + 1; i++) { 486 ret_val = hw->nvm.ops.read(hw, first_word + i, 1, 487 &eeprom_buff[i]); 488 if (ret_val) 489 break; 490 } 491 } 492 493 /* Device's eeprom is always little-endian, word addressable */ 494 for (i = 0; i < last_word - first_word + 1; i++) 495 le16_to_cpus(&eeprom_buff[i]); 496 497 memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), 498 eeprom->len); 499 kfree(eeprom_buff); 500 501 return ret_val; 502} 503 504static int igc_ethtool_set_eeprom(struct net_device *netdev, 505 struct ethtool_eeprom *eeprom, u8 *bytes) 506{ 507 struct igc_adapter *adapter = netdev_priv(netdev); 508 struct igc_hw *hw = &adapter->hw; 509 int max_len, first_word, last_word, ret_val = 0; 510 u16 *eeprom_buff; 511 void *ptr; 512 u16 i; 513 514 if (eeprom->len == 0) 515 return -EOPNOTSUPP; 516 517 if (hw->mac.type >= igc_i225 && 518 !igc_get_flash_presence_i225(hw)) { 519 return -EOPNOTSUPP; 520 } 521 522 if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16))) 523 return -EFAULT; 524 525 max_len = hw->nvm.word_size * 2; 526 527 first_word = eeprom->offset >> 1; 528 last_word = (eeprom->offset + eeprom->len - 1) >> 1; 529 eeprom_buff = kmalloc(max_len, GFP_KERNEL); 530 if (!eeprom_buff) 531 return -ENOMEM; 532 533 ptr = (void *)eeprom_buff; 534 535 if (eeprom->offset & 1) { 536 /* need read/modify/write of first changed EEPROM word 537 * only the second byte of the word is being modified 538 */ 539 ret_val = hw->nvm.ops.read(hw, first_word, 1, 540 &eeprom_buff[0]); 541 ptr++; 542 } 543 if (((eeprom->offset + eeprom->len) & 1) && ret_val == 0) { 544 /* need read/modify/write of last changed EEPROM word 545 * only the first byte of the word is being modified 546 */ 547 ret_val = hw->nvm.ops.read(hw, last_word, 1, 548 &eeprom_buff[last_word - first_word]); 549 } 550 551 /* Device's eeprom is always little-endian, word addressable */ 552 for (i = 0; i < last_word - first_word + 1; i++) 553 le16_to_cpus(&eeprom_buff[i]); 554 555 memcpy(ptr, bytes, eeprom->len); 556 557 for (i = 0; i < last_word - first_word + 1; i++) 558 cpu_to_le16s(&eeprom_buff[i]); 559 560 ret_val = hw->nvm.ops.write(hw, first_word, 561 last_word - first_word + 1, eeprom_buff); 562 563 /* Update the checksum if nvm write succeeded */ 564 if (ret_val == 0) 565 hw->nvm.ops.update(hw); 566 567 kfree(eeprom_buff); 568 return ret_val; 569} 570 571static void 572igc_ethtool_get_ringparam(struct net_device *netdev, 573 struct ethtool_ringparam *ring, 574 struct kernel_ethtool_ringparam *kernel_ering, 575 struct netlink_ext_ack *extack) 576{ 577 struct igc_adapter *adapter = netdev_priv(netdev); 578 579 ring->rx_max_pending = IGC_MAX_RXD; 580 ring->tx_max_pending = IGC_MAX_TXD; 581 ring->rx_pending = adapter->rx_ring_count; 582 ring->tx_pending = adapter->tx_ring_count; 583} 584 585static int 586igc_ethtool_set_ringparam(struct net_device *netdev, 587 struct ethtool_ringparam *ring, 588 struct kernel_ethtool_ringparam *kernel_ering, 589 struct netlink_ext_ack *extack) 590{ 591 struct igc_adapter *adapter = netdev_priv(netdev); 592 struct igc_ring *temp_ring; 593 u16 new_rx_count, new_tx_count; 594 int i, err = 0; 595 596 if (ring->rx_mini_pending || ring->rx_jumbo_pending) 597 return -EINVAL; 598 599 new_rx_count = min_t(u32, ring->rx_pending, IGC_MAX_RXD); 600 new_rx_count = max_t(u16, new_rx_count, IGC_MIN_RXD); 601 new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE); 602 603 new_tx_count = min_t(u32, ring->tx_pending, IGC_MAX_TXD); 604 new_tx_count = max_t(u16, new_tx_count, IGC_MIN_TXD); 605 new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE); 606 607 if (new_tx_count == adapter->tx_ring_count && 608 new_rx_count == adapter->rx_ring_count) { 609 /* nothing to do */ 610 return 0; 611 } 612 613 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 614 usleep_range(1000, 2000); 615 616 if (!netif_running(adapter->netdev)) { 617 for (i = 0; i < adapter->num_tx_queues; i++) 618 adapter->tx_ring[i]->count = new_tx_count; 619 for (i = 0; i < adapter->num_rx_queues; i++) 620 adapter->rx_ring[i]->count = new_rx_count; 621 adapter->tx_ring_count = new_tx_count; 622 adapter->rx_ring_count = new_rx_count; 623 goto clear_reset; 624 } 625 626 if (adapter->num_tx_queues > adapter->num_rx_queues) 627 temp_ring = vmalloc(array_size(sizeof(struct igc_ring), 628 adapter->num_tx_queues)); 629 else 630 temp_ring = vmalloc(array_size(sizeof(struct igc_ring), 631 adapter->num_rx_queues)); 632 633 if (!temp_ring) { 634 err = -ENOMEM; 635 goto clear_reset; 636 } 637 638 igc_down(adapter); 639 640 /* We can't just free everything and then setup again, 641 * because the ISRs in MSI-X mode get passed pointers 642 * to the Tx and Rx ring structs. 643 */ 644 if (new_tx_count != adapter->tx_ring_count) { 645 for (i = 0; i < adapter->num_tx_queues; i++) { 646 memcpy(&temp_ring[i], adapter->tx_ring[i], 647 sizeof(struct igc_ring)); 648 649 temp_ring[i].count = new_tx_count; 650 err = igc_setup_tx_resources(&temp_ring[i]); 651 if (err) { 652 while (i) { 653 i--; 654 igc_free_tx_resources(&temp_ring[i]); 655 } 656 goto err_setup; 657 } 658 } 659 660 for (i = 0; i < adapter->num_tx_queues; i++) { 661 igc_free_tx_resources(adapter->tx_ring[i]); 662 663 memcpy(adapter->tx_ring[i], &temp_ring[i], 664 sizeof(struct igc_ring)); 665 } 666 667 adapter->tx_ring_count = new_tx_count; 668 } 669 670 if (new_rx_count != adapter->rx_ring_count) { 671 for (i = 0; i < adapter->num_rx_queues; i++) { 672 memcpy(&temp_ring[i], adapter->rx_ring[i], 673 sizeof(struct igc_ring)); 674 675 temp_ring[i].count = new_rx_count; 676 err = igc_setup_rx_resources(&temp_ring[i]); 677 if (err) { 678 while (i) { 679 i--; 680 igc_free_rx_resources(&temp_ring[i]); 681 } 682 goto err_setup; 683 } 684 } 685 686 for (i = 0; i < adapter->num_rx_queues; i++) { 687 igc_free_rx_resources(adapter->rx_ring[i]); 688 689 memcpy(adapter->rx_ring[i], &temp_ring[i], 690 sizeof(struct igc_ring)); 691 } 692 693 adapter->rx_ring_count = new_rx_count; 694 } 695err_setup: 696 igc_up(adapter); 697 vfree(temp_ring); 698clear_reset: 699 clear_bit(__IGC_RESETTING, &adapter->state); 700 return err; 701} 702 703static void igc_ethtool_get_pauseparam(struct net_device *netdev, 704 struct ethtool_pauseparam *pause) 705{ 706 struct igc_adapter *adapter = netdev_priv(netdev); 707 struct igc_hw *hw = &adapter->hw; 708 709 pause->autoneg = 710 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE); 711 712 if (hw->fc.current_mode == igc_fc_rx_pause) { 713 pause->rx_pause = 1; 714 } else if (hw->fc.current_mode == igc_fc_tx_pause) { 715 pause->tx_pause = 1; 716 } else if (hw->fc.current_mode == igc_fc_full) { 717 pause->rx_pause = 1; 718 pause->tx_pause = 1; 719 } 720} 721 722static int igc_ethtool_set_pauseparam(struct net_device *netdev, 723 struct ethtool_pauseparam *pause) 724{ 725 struct igc_adapter *adapter = netdev_priv(netdev); 726 struct igc_hw *hw = &adapter->hw; 727 int retval = 0; 728 729 adapter->fc_autoneg = pause->autoneg; 730 731 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 732 usleep_range(1000, 2000); 733 734 if (adapter->fc_autoneg == AUTONEG_ENABLE) { 735 hw->fc.requested_mode = igc_fc_default; 736 if (netif_running(adapter->netdev)) { 737 igc_down(adapter); 738 igc_up(adapter); 739 } else { 740 igc_reset(adapter); 741 } 742 } else { 743 if (pause->rx_pause && pause->tx_pause) 744 hw->fc.requested_mode = igc_fc_full; 745 else if (pause->rx_pause && !pause->tx_pause) 746 hw->fc.requested_mode = igc_fc_rx_pause; 747 else if (!pause->rx_pause && pause->tx_pause) 748 hw->fc.requested_mode = igc_fc_tx_pause; 749 else if (!pause->rx_pause && !pause->tx_pause) 750 hw->fc.requested_mode = igc_fc_none; 751 752 hw->fc.current_mode = hw->fc.requested_mode; 753 754 retval = ((hw->phy.media_type == igc_media_type_copper) ? 755 igc_force_mac_fc(hw) : igc_setup_link(hw)); 756 } 757 758 clear_bit(__IGC_RESETTING, &adapter->state); 759 return retval; 760} 761 762static void igc_ethtool_get_strings(struct net_device *netdev, u32 stringset, 763 u8 *data) 764{ 765 struct igc_adapter *adapter = netdev_priv(netdev); 766 u8 *p = data; 767 int i; 768 769 switch (stringset) { 770 case ETH_SS_TEST: 771 memcpy(data, *igc_gstrings_test, 772 IGC_TEST_LEN * ETH_GSTRING_LEN); 773 break; 774 case ETH_SS_STATS: 775 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) 776 ethtool_puts(&p, igc_gstrings_stats[i].stat_string); 777 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++) 778 ethtool_puts(&p, igc_gstrings_net_stats[i].stat_string); 779 for (i = 0; i < adapter->num_tx_queues; i++) { 780 ethtool_sprintf(&p, "tx_queue_%u_packets", i); 781 ethtool_sprintf(&p, "tx_queue_%u_bytes", i); 782 ethtool_sprintf(&p, "tx_queue_%u_restart", i); 783 } 784 for (i = 0; i < adapter->num_rx_queues; i++) { 785 ethtool_sprintf(&p, "rx_queue_%u_packets", i); 786 ethtool_sprintf(&p, "rx_queue_%u_bytes", i); 787 ethtool_sprintf(&p, "rx_queue_%u_drops", i); 788 ethtool_sprintf(&p, "rx_queue_%u_csum_err", i); 789 ethtool_sprintf(&p, "rx_queue_%u_alloc_failed", i); 790 } 791 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */ 792 break; 793 case ETH_SS_PRIV_FLAGS: 794 memcpy(data, igc_priv_flags_strings, 795 IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN); 796 break; 797 } 798} 799 800static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset) 801{ 802 switch (sset) { 803 case ETH_SS_STATS: 804 return IGC_STATS_LEN; 805 case ETH_SS_TEST: 806 return IGC_TEST_LEN; 807 case ETH_SS_PRIV_FLAGS: 808 return IGC_PRIV_FLAGS_STR_LEN; 809 default: 810 return -ENOTSUPP; 811 } 812} 813 814static void igc_ethtool_get_stats(struct net_device *netdev, 815 struct ethtool_stats *stats, u64 *data) 816{ 817 struct igc_adapter *adapter = netdev_priv(netdev); 818 struct rtnl_link_stats64 *net_stats = &adapter->stats64; 819 unsigned int start; 820 struct igc_ring *ring; 821 int i, j; 822 char *p; 823 824 spin_lock(&adapter->stats64_lock); 825 igc_update_stats(adapter); 826 827 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) { 828 p = (char *)adapter + igc_gstrings_stats[i].stat_offset; 829 data[i] = (igc_gstrings_stats[i].sizeof_stat == 830 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 831 } 832 for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) { 833 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset; 834 data[i] = (igc_gstrings_net_stats[j].sizeof_stat == 835 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 836 } 837 for (j = 0; j < adapter->num_tx_queues; j++) { 838 u64 restart2; 839 840 ring = adapter->tx_ring[j]; 841 do { 842 start = u64_stats_fetch_begin(&ring->tx_syncp); 843 data[i] = ring->tx_stats.packets; 844 data[i + 1] = ring->tx_stats.bytes; 845 data[i + 2] = ring->tx_stats.restart_queue; 846 } while (u64_stats_fetch_retry(&ring->tx_syncp, start)); 847 do { 848 start = u64_stats_fetch_begin(&ring->tx_syncp2); 849 restart2 = ring->tx_stats.restart_queue2; 850 } while (u64_stats_fetch_retry(&ring->tx_syncp2, start)); 851 data[i + 2] += restart2; 852 853 i += IGC_TX_QUEUE_STATS_LEN; 854 } 855 for (j = 0; j < adapter->num_rx_queues; j++) { 856 ring = adapter->rx_ring[j]; 857 do { 858 start = u64_stats_fetch_begin(&ring->rx_syncp); 859 data[i] = ring->rx_stats.packets; 860 data[i + 1] = ring->rx_stats.bytes; 861 data[i + 2] = ring->rx_stats.drops; 862 data[i + 3] = ring->rx_stats.csum_err; 863 data[i + 4] = ring->rx_stats.alloc_failed; 864 } while (u64_stats_fetch_retry(&ring->rx_syncp, start)); 865 i += IGC_RX_QUEUE_STATS_LEN; 866 } 867 spin_unlock(&adapter->stats64_lock); 868} 869 870static int igc_ethtool_get_previous_rx_coalesce(struct igc_adapter *adapter) 871{ 872 return (adapter->rx_itr_setting <= 3) ? 873 adapter->rx_itr_setting : adapter->rx_itr_setting >> 2; 874} 875 876static int igc_ethtool_get_previous_tx_coalesce(struct igc_adapter *adapter) 877{ 878 return (adapter->tx_itr_setting <= 3) ? 879 adapter->tx_itr_setting : adapter->tx_itr_setting >> 2; 880} 881 882static int igc_ethtool_get_coalesce(struct net_device *netdev, 883 struct ethtool_coalesce *ec, 884 struct kernel_ethtool_coalesce *kernel_coal, 885 struct netlink_ext_ack *extack) 886{ 887 struct igc_adapter *adapter = netdev_priv(netdev); 888 889 ec->rx_coalesce_usecs = igc_ethtool_get_previous_rx_coalesce(adapter); 890 ec->tx_coalesce_usecs = igc_ethtool_get_previous_tx_coalesce(adapter); 891 892 return 0; 893} 894 895static int igc_ethtool_set_coalesce(struct net_device *netdev, 896 struct ethtool_coalesce *ec, 897 struct kernel_ethtool_coalesce *kernel_coal, 898 struct netlink_ext_ack *extack) 899{ 900 struct igc_adapter *adapter = netdev_priv(netdev); 901 int i; 902 903 if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS || 904 (ec->rx_coalesce_usecs > 3 && 905 ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) || 906 ec->rx_coalesce_usecs == 2) 907 return -EINVAL; 908 909 if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS || 910 (ec->tx_coalesce_usecs > 3 && 911 ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) || 912 ec->tx_coalesce_usecs == 2) 913 return -EINVAL; 914 915 if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) && 916 ec->tx_coalesce_usecs != igc_ethtool_get_previous_tx_coalesce(adapter)) { 917 NL_SET_ERR_MSG_MOD(extack, 918 "Queue Pair mode enabled, both Rx and Tx coalescing controlled by rx-usecs"); 919 return -EINVAL; 920 } 921 922 /* If ITR is disabled, disable DMAC */ 923 if (ec->rx_coalesce_usecs == 0) { 924 if (adapter->flags & IGC_FLAG_DMAC) 925 adapter->flags &= ~IGC_FLAG_DMAC; 926 } 927 928 /* convert to rate of irq's per second */ 929 if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3) 930 adapter->rx_itr_setting = ec->rx_coalesce_usecs; 931 else 932 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2; 933 934 /* convert to rate of irq's per second */ 935 if (adapter->flags & IGC_FLAG_QUEUE_PAIRS) 936 adapter->tx_itr_setting = adapter->rx_itr_setting; 937 else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3) 938 adapter->tx_itr_setting = ec->tx_coalesce_usecs; 939 else 940 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2; 941 942 for (i = 0; i < adapter->num_q_vectors; i++) { 943 struct igc_q_vector *q_vector = adapter->q_vector[i]; 944 945 q_vector->tx.work_limit = adapter->tx_work_limit; 946 if (q_vector->rx.ring) 947 q_vector->itr_val = adapter->rx_itr_setting; 948 else 949 q_vector->itr_val = adapter->tx_itr_setting; 950 if (q_vector->itr_val && q_vector->itr_val <= 3) 951 q_vector->itr_val = IGC_START_ITR; 952 q_vector->set_itr = 1; 953 } 954 955 return 0; 956} 957 958#define ETHER_TYPE_FULL_MASK ((__force __be16)~0) 959#define VLAN_TCI_FULL_MASK ((__force __be16)~0) 960static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter, 961 struct ethtool_rxnfc *cmd) 962{ 963 struct ethtool_rx_flow_spec *fsp = &cmd->fs; 964 struct igc_nfc_rule *rule = NULL; 965 966 cmd->data = IGC_MAX_RXNFC_RULES; 967 968 mutex_lock(&adapter->nfc_rule_lock); 969 970 rule = igc_get_nfc_rule(adapter, fsp->location); 971 if (!rule) 972 goto out; 973 974 fsp->flow_type = ETHER_FLOW; 975 fsp->ring_cookie = rule->action; 976 977 if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) { 978 fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype); 979 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK; 980 } 981 982 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) { 983 fsp->flow_type |= FLOW_EXT; 984 fsp->h_ext.vlan_etype = htons(rule->filter.vlan_etype); 985 fsp->m_ext.vlan_etype = ETHER_TYPE_FULL_MASK; 986 } 987 988 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) { 989 fsp->flow_type |= FLOW_EXT; 990 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci); 991 fsp->m_ext.vlan_tci = htons(rule->filter.vlan_tci_mask); 992 } 993 994 if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) { 995 ether_addr_copy(fsp->h_u.ether_spec.h_dest, 996 rule->filter.dst_addr); 997 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest); 998 } 999 1000 if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) { 1001 ether_addr_copy(fsp->h_u.ether_spec.h_source, 1002 rule->filter.src_addr); 1003 eth_broadcast_addr(fsp->m_u.ether_spec.h_source); 1004 } 1005 1006 if (rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) { 1007 fsp->flow_type |= FLOW_EXT; 1008 memcpy(fsp->h_ext.data, rule->filter.user_data, sizeof(fsp->h_ext.data)); 1009 memcpy(fsp->m_ext.data, rule->filter.user_mask, sizeof(fsp->m_ext.data)); 1010 } 1011 1012 mutex_unlock(&adapter->nfc_rule_lock); 1013 return 0; 1014 1015out: 1016 mutex_unlock(&adapter->nfc_rule_lock); 1017 return -EINVAL; 1018} 1019 1020static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter, 1021 struct ethtool_rxnfc *cmd, 1022 u32 *rule_locs) 1023{ 1024 struct igc_nfc_rule *rule; 1025 int cnt = 0; 1026 1027 cmd->data = IGC_MAX_RXNFC_RULES; 1028 1029 mutex_lock(&adapter->nfc_rule_lock); 1030 1031 list_for_each_entry(rule, &adapter->nfc_rule_list, list) { 1032 if (cnt == cmd->rule_cnt) { 1033 mutex_unlock(&adapter->nfc_rule_lock); 1034 return -EMSGSIZE; 1035 } 1036 rule_locs[cnt] = rule->location; 1037 cnt++; 1038 } 1039 1040 mutex_unlock(&adapter->nfc_rule_lock); 1041 1042 cmd->rule_cnt = cnt; 1043 1044 return 0; 1045} 1046 1047static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter, 1048 struct ethtool_rxnfc *cmd) 1049{ 1050 cmd->data = 0; 1051 1052 /* Report default options for RSS on igc */ 1053 switch (cmd->flow_type) { 1054 case TCP_V4_FLOW: 1055 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1056 fallthrough; 1057 case UDP_V4_FLOW: 1058 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 1059 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1060 fallthrough; 1061 case SCTP_V4_FLOW: 1062 case AH_ESP_V4_FLOW: 1063 case AH_V4_FLOW: 1064 case ESP_V4_FLOW: 1065 case IPV4_FLOW: 1066 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1067 break; 1068 case TCP_V6_FLOW: 1069 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1070 fallthrough; 1071 case UDP_V6_FLOW: 1072 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 1073 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1074 fallthrough; 1075 case SCTP_V6_FLOW: 1076 case AH_ESP_V6_FLOW: 1077 case AH_V6_FLOW: 1078 case ESP_V6_FLOW: 1079 case IPV6_FLOW: 1080 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1081 break; 1082 default: 1083 return -EINVAL; 1084 } 1085 1086 return 0; 1087} 1088 1089static int igc_ethtool_get_rxnfc(struct net_device *dev, 1090 struct ethtool_rxnfc *cmd, u32 *rule_locs) 1091{ 1092 struct igc_adapter *adapter = netdev_priv(dev); 1093 1094 switch (cmd->cmd) { 1095 case ETHTOOL_GRXRINGS: 1096 cmd->data = adapter->num_rx_queues; 1097 return 0; 1098 case ETHTOOL_GRXCLSRLCNT: 1099 cmd->rule_cnt = adapter->nfc_rule_count; 1100 return 0; 1101 case ETHTOOL_GRXCLSRULE: 1102 return igc_ethtool_get_nfc_rule(adapter, cmd); 1103 case ETHTOOL_GRXCLSRLALL: 1104 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs); 1105 case ETHTOOL_GRXFH: 1106 return igc_ethtool_get_rss_hash_opts(adapter, cmd); 1107 default: 1108 return -EOPNOTSUPP; 1109 } 1110} 1111 1112#define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \ 1113 IGC_FLAG_RSS_FIELD_IPV6_UDP) 1114static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter, 1115 struct ethtool_rxnfc *nfc) 1116{ 1117 u32 flags = adapter->flags; 1118 1119 /* RSS does not support anything other than hashing 1120 * to queues on src and dst IPs and ports 1121 */ 1122 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 1123 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 1124 return -EINVAL; 1125 1126 switch (nfc->flow_type) { 1127 case TCP_V4_FLOW: 1128 case TCP_V6_FLOW: 1129 if (!(nfc->data & RXH_IP_SRC) || 1130 !(nfc->data & RXH_IP_DST) || 1131 !(nfc->data & RXH_L4_B_0_1) || 1132 !(nfc->data & RXH_L4_B_2_3)) 1133 return -EINVAL; 1134 break; 1135 case UDP_V4_FLOW: 1136 if (!(nfc->data & RXH_IP_SRC) || 1137 !(nfc->data & RXH_IP_DST)) 1138 return -EINVAL; 1139 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1140 case 0: 1141 flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP; 1142 break; 1143 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1144 flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP; 1145 break; 1146 default: 1147 return -EINVAL; 1148 } 1149 break; 1150 case UDP_V6_FLOW: 1151 if (!(nfc->data & RXH_IP_SRC) || 1152 !(nfc->data & RXH_IP_DST)) 1153 return -EINVAL; 1154 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1155 case 0: 1156 flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP; 1157 break; 1158 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1159 flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP; 1160 break; 1161 default: 1162 return -EINVAL; 1163 } 1164 break; 1165 case AH_ESP_V4_FLOW: 1166 case AH_V4_FLOW: 1167 case ESP_V4_FLOW: 1168 case SCTP_V4_FLOW: 1169 case AH_ESP_V6_FLOW: 1170 case AH_V6_FLOW: 1171 case ESP_V6_FLOW: 1172 case SCTP_V6_FLOW: 1173 if (!(nfc->data & RXH_IP_SRC) || 1174 !(nfc->data & RXH_IP_DST) || 1175 (nfc->data & RXH_L4_B_0_1) || 1176 (nfc->data & RXH_L4_B_2_3)) 1177 return -EINVAL; 1178 break; 1179 default: 1180 return -EINVAL; 1181 } 1182 1183 /* if we changed something we need to update flags */ 1184 if (flags != adapter->flags) { 1185 struct igc_hw *hw = &adapter->hw; 1186 u32 mrqc = rd32(IGC_MRQC); 1187 1188 if ((flags & UDP_RSS_FLAGS) && 1189 !(adapter->flags & UDP_RSS_FLAGS)) 1190 netdev_err(adapter->netdev, 1191 "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n"); 1192 1193 adapter->flags = flags; 1194 1195 /* Perform hash on these packet types */ 1196 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 | 1197 IGC_MRQC_RSS_FIELD_IPV4_TCP | 1198 IGC_MRQC_RSS_FIELD_IPV6 | 1199 IGC_MRQC_RSS_FIELD_IPV6_TCP; 1200 1201 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP | 1202 IGC_MRQC_RSS_FIELD_IPV6_UDP); 1203 1204 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 1205 mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP; 1206 1207 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 1208 mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP; 1209 1210 wr32(IGC_MRQC, mrqc); 1211 } 1212 1213 return 0; 1214} 1215 1216static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule, 1217 const struct ethtool_rx_flow_spec *fsp) 1218{ 1219 INIT_LIST_HEAD(&rule->list); 1220 1221 rule->action = fsp->ring_cookie; 1222 rule->location = fsp->location; 1223 1224 if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) { 1225 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci); 1226 rule->filter.vlan_tci_mask = ntohs(fsp->m_ext.vlan_tci); 1227 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI; 1228 } 1229 1230 if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) { 1231 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto); 1232 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE; 1233 } 1234 1235 /* Both source and destination address filters only support the full 1236 * mask. 1237 */ 1238 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) { 1239 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR; 1240 ether_addr_copy(rule->filter.src_addr, 1241 fsp->h_u.ether_spec.h_source); 1242 } 1243 1244 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) { 1245 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR; 1246 ether_addr_copy(rule->filter.dst_addr, 1247 fsp->h_u.ether_spec.h_dest); 1248 } 1249 1250 /* VLAN etype matching */ 1251 if ((fsp->flow_type & FLOW_EXT) && fsp->h_ext.vlan_etype) { 1252 rule->filter.vlan_etype = ntohs(fsp->h_ext.vlan_etype); 1253 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_ETYPE; 1254 } 1255 1256 /* Check for user defined data */ 1257 if ((fsp->flow_type & FLOW_EXT) && 1258 (fsp->h_ext.data[0] || fsp->h_ext.data[1])) { 1259 rule->filter.match_flags |= IGC_FILTER_FLAG_USER_DATA; 1260 memcpy(rule->filter.user_data, fsp->h_ext.data, sizeof(fsp->h_ext.data)); 1261 memcpy(rule->filter.user_mask, fsp->m_ext.data, sizeof(fsp->m_ext.data)); 1262 } 1263 1264 /* The i225/i226 has various different filters. Flex filters provide a 1265 * way to match up to the first 128 bytes of a packet. Use them for: 1266 * a) For specific user data 1267 * b) For VLAN EtherType 1268 * c) For full TCI match 1269 * d) Or in case multiple filter criteria are set 1270 * 1271 * Otherwise, use the simple MAC, VLAN PRIO or EtherType filters. 1272 */ 1273 if ((rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) || 1274 (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) || 1275 ((rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) && 1276 rule->filter.vlan_tci_mask == ntohs(VLAN_TCI_FULL_MASK)) || 1277 (rule->filter.match_flags & (rule->filter.match_flags - 1))) 1278 rule->flex = true; 1279 else 1280 rule->flex = false; 1281} 1282 1283/** 1284 * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid 1285 * @adapter: Pointer to adapter 1286 * @rule: Rule under evaluation 1287 * 1288 * The driver doesn't support rules with multiple matches so if more than 1289 * one bit in filter flags is set, @rule is considered invalid. 1290 * 1291 * Also, if there is already another rule with the same filter in a different 1292 * location, @rule is considered invalid. 1293 * 1294 * Context: Expects adapter->nfc_rule_lock to be held by caller. 1295 * 1296 * Return: 0 in case of success, negative errno code otherwise. 1297 */ 1298static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter, 1299 struct igc_nfc_rule *rule) 1300{ 1301 struct net_device *dev = adapter->netdev; 1302 u8 flags = rule->filter.match_flags; 1303 struct igc_nfc_rule *tmp; 1304 1305 if (!flags) { 1306 netdev_dbg(dev, "Rule with no match\n"); 1307 return -EINVAL; 1308 } 1309 1310 list_for_each_entry(tmp, &adapter->nfc_rule_list, list) { 1311 if (!memcmp(&rule->filter, &tmp->filter, 1312 sizeof(rule->filter)) && 1313 tmp->location != rule->location) { 1314 netdev_dbg(dev, "Rule already exists\n"); 1315 return -EEXIST; 1316 } 1317 } 1318 1319 return 0; 1320} 1321 1322static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter, 1323 struct ethtool_rxnfc *cmd) 1324{ 1325 struct net_device *netdev = adapter->netdev; 1326 struct ethtool_rx_flow_spec *fsp = 1327 (struct ethtool_rx_flow_spec *)&cmd->fs; 1328 struct igc_nfc_rule *rule, *old_rule; 1329 int err; 1330 1331 if (!(netdev->hw_features & NETIF_F_NTUPLE)) { 1332 netdev_dbg(netdev, "N-tuple filters disabled\n"); 1333 return -EOPNOTSUPP; 1334 } 1335 1336 if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) { 1337 netdev_dbg(netdev, "Only ethernet flow type is supported\n"); 1338 return -EOPNOTSUPP; 1339 } 1340 1341 if (fsp->ring_cookie >= adapter->num_rx_queues) { 1342 netdev_dbg(netdev, "Invalid action\n"); 1343 return -EINVAL; 1344 } 1345 1346 /* There are two ways to match the VLAN TCI: 1347 * 1. Match on PCP field and use vlan prio filter for it 1348 * 2. Match on complete TCI field and use flex filter for it 1349 */ 1350 if ((fsp->flow_type & FLOW_EXT) && 1351 fsp->m_ext.vlan_tci && 1352 fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK) && 1353 fsp->m_ext.vlan_tci != VLAN_TCI_FULL_MASK) { 1354 netdev_dbg(netdev, "VLAN mask not supported\n"); 1355 return -EOPNOTSUPP; 1356 } 1357 1358 /* VLAN EtherType can only be matched by full mask. */ 1359 if ((fsp->flow_type & FLOW_EXT) && 1360 fsp->m_ext.vlan_etype && 1361 fsp->m_ext.vlan_etype != ETHER_TYPE_FULL_MASK) { 1362 netdev_dbg(netdev, "VLAN EtherType mask not supported\n"); 1363 return -EOPNOTSUPP; 1364 } 1365 1366 if (fsp->location >= IGC_MAX_RXNFC_RULES) { 1367 netdev_dbg(netdev, "Invalid location\n"); 1368 return -EINVAL; 1369 } 1370 1371 rule = kzalloc(sizeof(*rule), GFP_KERNEL); 1372 if (!rule) 1373 return -ENOMEM; 1374 1375 igc_ethtool_init_nfc_rule(rule, fsp); 1376 1377 mutex_lock(&adapter->nfc_rule_lock); 1378 1379 err = igc_ethtool_check_nfc_rule(adapter, rule); 1380 if (err) 1381 goto err; 1382 1383 old_rule = igc_get_nfc_rule(adapter, fsp->location); 1384 if (old_rule) 1385 igc_del_nfc_rule(adapter, old_rule); 1386 1387 err = igc_add_nfc_rule(adapter, rule); 1388 if (err) 1389 goto err; 1390 1391 mutex_unlock(&adapter->nfc_rule_lock); 1392 return 0; 1393 1394err: 1395 mutex_unlock(&adapter->nfc_rule_lock); 1396 kfree(rule); 1397 return err; 1398} 1399 1400static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter, 1401 struct ethtool_rxnfc *cmd) 1402{ 1403 struct ethtool_rx_flow_spec *fsp = 1404 (struct ethtool_rx_flow_spec *)&cmd->fs; 1405 struct igc_nfc_rule *rule; 1406 1407 mutex_lock(&adapter->nfc_rule_lock); 1408 1409 rule = igc_get_nfc_rule(adapter, fsp->location); 1410 if (!rule) { 1411 mutex_unlock(&adapter->nfc_rule_lock); 1412 return -EINVAL; 1413 } 1414 1415 igc_del_nfc_rule(adapter, rule); 1416 1417 mutex_unlock(&adapter->nfc_rule_lock); 1418 return 0; 1419} 1420 1421static int igc_ethtool_set_rxnfc(struct net_device *dev, 1422 struct ethtool_rxnfc *cmd) 1423{ 1424 struct igc_adapter *adapter = netdev_priv(dev); 1425 1426 switch (cmd->cmd) { 1427 case ETHTOOL_SRXFH: 1428 return igc_ethtool_set_rss_hash_opt(adapter, cmd); 1429 case ETHTOOL_SRXCLSRLINS: 1430 return igc_ethtool_add_nfc_rule(adapter, cmd); 1431 case ETHTOOL_SRXCLSRLDEL: 1432 return igc_ethtool_del_nfc_rule(adapter, cmd); 1433 default: 1434 return -EOPNOTSUPP; 1435 } 1436} 1437 1438void igc_write_rss_indir_tbl(struct igc_adapter *adapter) 1439{ 1440 struct igc_hw *hw = &adapter->hw; 1441 u32 reg = IGC_RETA(0); 1442 u32 shift = 0; 1443 int i = 0; 1444 1445 while (i < IGC_RETA_SIZE) { 1446 u32 val = 0; 1447 int j; 1448 1449 for (j = 3; j >= 0; j--) { 1450 val <<= 8; 1451 val |= adapter->rss_indir_tbl[i + j]; 1452 } 1453 1454 wr32(reg, val << shift); 1455 reg += 4; 1456 i += 4; 1457 } 1458} 1459 1460static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev) 1461{ 1462 return IGC_RETA_SIZE; 1463} 1464 1465static int igc_ethtool_get_rxfh(struct net_device *netdev, 1466 struct ethtool_rxfh_param *rxfh) 1467{ 1468 struct igc_adapter *adapter = netdev_priv(netdev); 1469 int i; 1470 1471 rxfh->hfunc = ETH_RSS_HASH_TOP; 1472 if (!rxfh->indir) 1473 return 0; 1474 for (i = 0; i < IGC_RETA_SIZE; i++) 1475 rxfh->indir[i] = adapter->rss_indir_tbl[i]; 1476 1477 return 0; 1478} 1479 1480static int igc_ethtool_set_rxfh(struct net_device *netdev, 1481 struct ethtool_rxfh_param *rxfh, 1482 struct netlink_ext_ack *extack) 1483{ 1484 struct igc_adapter *adapter = netdev_priv(netdev); 1485 u32 num_queues; 1486 int i; 1487 1488 /* We do not allow change in unsupported parameters */ 1489 if (rxfh->key || 1490 (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE && 1491 rxfh->hfunc != ETH_RSS_HASH_TOP)) 1492 return -EOPNOTSUPP; 1493 if (!rxfh->indir) 1494 return 0; 1495 1496 num_queues = adapter->rss_queues; 1497 1498 /* Verify user input. */ 1499 for (i = 0; i < IGC_RETA_SIZE; i++) 1500 if (rxfh->indir[i] >= num_queues) 1501 return -EINVAL; 1502 1503 for (i = 0; i < IGC_RETA_SIZE; i++) 1504 adapter->rss_indir_tbl[i] = rxfh->indir[i]; 1505 1506 igc_write_rss_indir_tbl(adapter); 1507 1508 return 0; 1509} 1510 1511static void igc_ethtool_get_channels(struct net_device *netdev, 1512 struct ethtool_channels *ch) 1513{ 1514 struct igc_adapter *adapter = netdev_priv(netdev); 1515 1516 /* Report maximum channels */ 1517 ch->max_combined = igc_get_max_rss_queues(adapter); 1518 1519 /* Report info for other vector */ 1520 if (adapter->flags & IGC_FLAG_HAS_MSIX) { 1521 ch->max_other = NON_Q_VECTORS; 1522 ch->other_count = NON_Q_VECTORS; 1523 } 1524 1525 ch->combined_count = adapter->rss_queues; 1526} 1527 1528static int igc_ethtool_set_channels(struct net_device *netdev, 1529 struct ethtool_channels *ch) 1530{ 1531 struct igc_adapter *adapter = netdev_priv(netdev); 1532 unsigned int count = ch->combined_count; 1533 unsigned int max_combined = 0; 1534 1535 /* Verify they are not requesting separate vectors */ 1536 if (!count || ch->rx_count || ch->tx_count) 1537 return -EINVAL; 1538 1539 /* Verify other_count is valid and has not been changed */ 1540 if (ch->other_count != NON_Q_VECTORS) 1541 return -EINVAL; 1542 1543 /* Verify the number of channels doesn't exceed hw limits */ 1544 max_combined = igc_get_max_rss_queues(adapter); 1545 if (count > max_combined) 1546 return -EINVAL; 1547 1548 if (count != adapter->rss_queues) { 1549 adapter->rss_queues = count; 1550 igc_set_flag_queue_pairs(adapter, max_combined); 1551 1552 /* Hardware has to reinitialize queues and interrupts to 1553 * match the new configuration. 1554 */ 1555 return igc_reinit_queues(adapter); 1556 } 1557 1558 return 0; 1559} 1560 1561static int igc_ethtool_get_ts_info(struct net_device *dev, 1562 struct ethtool_ts_info *info) 1563{ 1564 struct igc_adapter *adapter = netdev_priv(dev); 1565 1566 if (adapter->ptp_clock) 1567 info->phc_index = ptp_clock_index(adapter->ptp_clock); 1568 else 1569 info->phc_index = -1; 1570 1571 switch (adapter->hw.mac.type) { 1572 case igc_i225: 1573 info->so_timestamping = 1574 SOF_TIMESTAMPING_TX_SOFTWARE | 1575 SOF_TIMESTAMPING_RX_SOFTWARE | 1576 SOF_TIMESTAMPING_SOFTWARE | 1577 SOF_TIMESTAMPING_TX_HARDWARE | 1578 SOF_TIMESTAMPING_RX_HARDWARE | 1579 SOF_TIMESTAMPING_RAW_HARDWARE; 1580 1581 info->tx_types = 1582 BIT(HWTSTAMP_TX_OFF) | 1583 BIT(HWTSTAMP_TX_ON); 1584 1585 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE); 1586 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL); 1587 1588 return 0; 1589 default: 1590 return -EOPNOTSUPP; 1591 } 1592} 1593 1594static u32 igc_ethtool_get_priv_flags(struct net_device *netdev) 1595{ 1596 struct igc_adapter *adapter = netdev_priv(netdev); 1597 u32 priv_flags = 0; 1598 1599 if (adapter->flags & IGC_FLAG_RX_LEGACY) 1600 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX; 1601 1602 return priv_flags; 1603} 1604 1605static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags) 1606{ 1607 struct igc_adapter *adapter = netdev_priv(netdev); 1608 unsigned int flags = adapter->flags; 1609 1610 flags &= ~IGC_FLAG_RX_LEGACY; 1611 if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX) 1612 flags |= IGC_FLAG_RX_LEGACY; 1613 1614 if (flags != adapter->flags) { 1615 adapter->flags = flags; 1616 1617 /* reset interface to repopulate queues */ 1618 if (netif_running(netdev)) 1619 igc_reinit_locked(adapter); 1620 } 1621 1622 return 0; 1623} 1624 1625static int igc_ethtool_get_eee(struct net_device *netdev, 1626 struct ethtool_keee *edata) 1627{ 1628 struct igc_adapter *adapter = netdev_priv(netdev); 1629 struct igc_hw *hw = &adapter->hw; 1630 u32 eeer; 1631 1632 if (hw->dev_spec._base.eee_enable) 1633 mii_eee_cap1_mod_linkmode_t(edata->advertised, 1634 adapter->eee_advert); 1635 1636 *edata = adapter->eee; 1637 1638 eeer = rd32(IGC_EEER); 1639 1640 /* EEE status on negotiated link */ 1641 if (eeer & IGC_EEER_EEE_NEG) 1642 edata->eee_active = true; 1643 1644 if (eeer & IGC_EEER_TX_LPI_EN) 1645 edata->tx_lpi_enabled = true; 1646 1647 edata->eee_enabled = hw->dev_spec._base.eee_enable; 1648 1649 /* Report correct negotiated EEE status for devices that 1650 * wrongly report EEE at half-duplex 1651 */ 1652 if (adapter->link_duplex == HALF_DUPLEX) { 1653 edata->eee_enabled = false; 1654 edata->eee_active = false; 1655 edata->tx_lpi_enabled = false; 1656 linkmode_zero(edata->advertised); 1657 } 1658 1659 return 0; 1660} 1661 1662static int igc_ethtool_set_eee(struct net_device *netdev, 1663 struct ethtool_keee *edata) 1664{ 1665 struct igc_adapter *adapter = netdev_priv(netdev); 1666 struct igc_hw *hw = &adapter->hw; 1667 struct ethtool_keee eee_curr; 1668 s32 ret_val; 1669 1670 memset(&eee_curr, 0, sizeof(struct ethtool_keee)); 1671 1672 ret_val = igc_ethtool_get_eee(netdev, &eee_curr); 1673 if (ret_val) { 1674 netdev_err(netdev, 1675 "Problem setting EEE advertisement options\n"); 1676 return -EINVAL; 1677 } 1678 1679 if (eee_curr.eee_enabled) { 1680 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) { 1681 netdev_err(netdev, 1682 "Setting EEE tx-lpi is not supported\n"); 1683 return -EINVAL; 1684 } 1685 1686 /* Tx LPI timer is not implemented currently */ 1687 if (edata->tx_lpi_timer) { 1688 netdev_err(netdev, 1689 "Setting EEE Tx LPI timer is not supported\n"); 1690 return -EINVAL; 1691 } 1692 } else if (!edata->eee_enabled) { 1693 netdev_err(netdev, 1694 "Setting EEE options are not supported with EEE disabled\n"); 1695 return -EINVAL; 1696 } 1697 1698 adapter->eee_advert = linkmode_to_mii_eee_cap1_t(edata->advertised); 1699 1700 if (hw->dev_spec._base.eee_enable != edata->eee_enabled) { 1701 hw->dev_spec._base.eee_enable = edata->eee_enabled; 1702 adapter->flags |= IGC_FLAG_EEE; 1703 1704 /* reset link */ 1705 if (netif_running(netdev)) 1706 igc_reinit_locked(adapter); 1707 else 1708 igc_reset(adapter); 1709 } 1710 1711 return 0; 1712} 1713 1714static int igc_ethtool_begin(struct net_device *netdev) 1715{ 1716 struct igc_adapter *adapter = netdev_priv(netdev); 1717 1718 pm_runtime_get_sync(&adapter->pdev->dev); 1719 return 0; 1720} 1721 1722static void igc_ethtool_complete(struct net_device *netdev) 1723{ 1724 struct igc_adapter *adapter = netdev_priv(netdev); 1725 1726 pm_runtime_put(&adapter->pdev->dev); 1727} 1728 1729static int igc_ethtool_get_link_ksettings(struct net_device *netdev, 1730 struct ethtool_link_ksettings *cmd) 1731{ 1732 struct igc_adapter *adapter = netdev_priv(netdev); 1733 struct igc_hw *hw = &adapter->hw; 1734 u32 status; 1735 u32 speed; 1736 1737 ethtool_link_ksettings_zero_link_mode(cmd, supported); 1738 ethtool_link_ksettings_zero_link_mode(cmd, advertising); 1739 1740 /* supported link modes */ 1741 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half); 1742 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full); 1743 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half); 1744 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full); 1745 ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full); 1746 ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full); 1747 1748 /* twisted pair */ 1749 cmd->base.port = PORT_TP; 1750 cmd->base.phy_address = hw->phy.addr; 1751 ethtool_link_ksettings_add_link_mode(cmd, supported, TP); 1752 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); 1753 1754 /* advertising link modes */ 1755 if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF) 1756 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half); 1757 if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL) 1758 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full); 1759 if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF) 1760 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half); 1761 if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL) 1762 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full); 1763 if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL) 1764 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full); 1765 if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL) 1766 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full); 1767 1768 /* set autoneg settings */ 1769 if (hw->mac.autoneg == 1) { 1770 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 1771 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1772 Autoneg); 1773 } 1774 1775 /* Set pause flow control settings */ 1776 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); 1777 1778 switch (hw->fc.requested_mode) { 1779 case igc_fc_full: 1780 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1781 break; 1782 case igc_fc_rx_pause: 1783 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1784 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1785 Asym_Pause); 1786 break; 1787 case igc_fc_tx_pause: 1788 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1789 Asym_Pause); 1790 break; 1791 default: 1792 break; 1793 } 1794 1795 status = pm_runtime_suspended(&adapter->pdev->dev) ? 1796 0 : rd32(IGC_STATUS); 1797 1798 if (status & IGC_STATUS_LU) { 1799 if (status & IGC_STATUS_SPEED_1000) { 1800 /* For I225, STATUS will indicate 1G speed in both 1801 * 1 Gbps and 2.5 Gbps link modes. 1802 * An additional bit is used 1803 * to differentiate between 1 Gbps and 2.5 Gbps. 1804 */ 1805 if (hw->mac.type == igc_i225 && 1806 (status & IGC_STATUS_SPEED_2500)) { 1807 speed = SPEED_2500; 1808 } else { 1809 speed = SPEED_1000; 1810 } 1811 } else if (status & IGC_STATUS_SPEED_100) { 1812 speed = SPEED_100; 1813 } else { 1814 speed = SPEED_10; 1815 } 1816 if ((status & IGC_STATUS_FD) || 1817 hw->phy.media_type != igc_media_type_copper) 1818 cmd->base.duplex = DUPLEX_FULL; 1819 else 1820 cmd->base.duplex = DUPLEX_HALF; 1821 } else { 1822 speed = SPEED_UNKNOWN; 1823 cmd->base.duplex = DUPLEX_UNKNOWN; 1824 } 1825 cmd->base.speed = speed; 1826 if (hw->mac.autoneg) 1827 cmd->base.autoneg = AUTONEG_ENABLE; 1828 else 1829 cmd->base.autoneg = AUTONEG_DISABLE; 1830 1831 /* MDI-X => 2; MDI =>1; Invalid =>0 */ 1832 if (hw->phy.media_type == igc_media_type_copper) 1833 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X : 1834 ETH_TP_MDI; 1835 else 1836 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID; 1837 1838 if (hw->phy.mdix == AUTO_ALL_MODES) 1839 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; 1840 else 1841 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix; 1842 1843 return 0; 1844} 1845 1846static int 1847igc_ethtool_set_link_ksettings(struct net_device *netdev, 1848 const struct ethtool_link_ksettings *cmd) 1849{ 1850 struct igc_adapter *adapter = netdev_priv(netdev); 1851 struct net_device *dev = adapter->netdev; 1852 struct igc_hw *hw = &adapter->hw; 1853 u16 advertised = 0; 1854 1855 /* When adapter in resetting mode, autoneg/speed/duplex 1856 * cannot be changed 1857 */ 1858 if (igc_check_reset_block(hw)) { 1859 netdev_err(dev, "Cannot change link characteristics when reset is active\n"); 1860 return -EINVAL; 1861 } 1862 1863 /* MDI setting is only allowed when autoneg enabled because 1864 * some hardware doesn't allow MDI setting when speed or 1865 * duplex is forced. 1866 */ 1867 if (cmd->base.eth_tp_mdix_ctrl) { 1868 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO && 1869 cmd->base.autoneg != AUTONEG_ENABLE) { 1870 netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n"); 1871 return -EINVAL; 1872 } 1873 } 1874 1875 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 1876 usleep_range(1000, 2000); 1877 1878 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1879 2500baseT_Full)) 1880 advertised |= ADVERTISE_2500_FULL; 1881 1882 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1883 1000baseT_Full)) 1884 advertised |= ADVERTISE_1000_FULL; 1885 1886 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1887 100baseT_Full)) 1888 advertised |= ADVERTISE_100_FULL; 1889 1890 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1891 100baseT_Half)) 1892 advertised |= ADVERTISE_100_HALF; 1893 1894 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1895 10baseT_Full)) 1896 advertised |= ADVERTISE_10_FULL; 1897 1898 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1899 10baseT_Half)) 1900 advertised |= ADVERTISE_10_HALF; 1901 1902 if (cmd->base.autoneg == AUTONEG_ENABLE) { 1903 hw->mac.autoneg = 1; 1904 hw->phy.autoneg_advertised = advertised; 1905 if (adapter->fc_autoneg) 1906 hw->fc.requested_mode = igc_fc_default; 1907 } else { 1908 netdev_info(dev, "Force mode currently not supported\n"); 1909 } 1910 1911 /* MDI-X => 2; MDI => 1; Auto => 3 */ 1912 if (cmd->base.eth_tp_mdix_ctrl) { 1913 /* fix up the value for auto (3 => 0) as zero is mapped 1914 * internally to auto 1915 */ 1916 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO) 1917 hw->phy.mdix = AUTO_ALL_MODES; 1918 else 1919 hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl; 1920 } 1921 1922 /* reset the link */ 1923 if (netif_running(adapter->netdev)) { 1924 igc_down(adapter); 1925 igc_up(adapter); 1926 } else { 1927 igc_reset(adapter); 1928 } 1929 1930 clear_bit(__IGC_RESETTING, &adapter->state); 1931 1932 return 0; 1933} 1934 1935static void igc_ethtool_diag_test(struct net_device *netdev, 1936 struct ethtool_test *eth_test, u64 *data) 1937{ 1938 struct igc_adapter *adapter = netdev_priv(netdev); 1939 bool if_running = netif_running(netdev); 1940 1941 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 1942 netdev_info(adapter->netdev, "Offline testing starting"); 1943 set_bit(__IGC_TESTING, &adapter->state); 1944 1945 /* Link test performed before hardware reset so autoneg doesn't 1946 * interfere with test result 1947 */ 1948 if (!igc_link_test(adapter, &data[TEST_LINK])) 1949 eth_test->flags |= ETH_TEST_FL_FAILED; 1950 1951 if (if_running) 1952 igc_close(netdev); 1953 else 1954 igc_reset(adapter); 1955 1956 netdev_info(adapter->netdev, "Register testing starting"); 1957 if (!igc_reg_test(adapter, &data[TEST_REG])) 1958 eth_test->flags |= ETH_TEST_FL_FAILED; 1959 1960 igc_reset(adapter); 1961 1962 netdev_info(adapter->netdev, "EEPROM testing starting"); 1963 if (!igc_eeprom_test(adapter, &data[TEST_EEP])) 1964 eth_test->flags |= ETH_TEST_FL_FAILED; 1965 1966 igc_reset(adapter); 1967 1968 /* loopback and interrupt tests 1969 * will be implemented in the future 1970 */ 1971 data[TEST_LOOP] = 0; 1972 data[TEST_IRQ] = 0; 1973 1974 clear_bit(__IGC_TESTING, &adapter->state); 1975 if (if_running) 1976 igc_open(netdev); 1977 } else { 1978 netdev_info(adapter->netdev, "Online testing starting"); 1979 1980 /* register, eeprom, intr and loopback tests not run online */ 1981 data[TEST_REG] = 0; 1982 data[TEST_EEP] = 0; 1983 data[TEST_IRQ] = 0; 1984 data[TEST_LOOP] = 0; 1985 1986 if (!igc_link_test(adapter, &data[TEST_LINK])) 1987 eth_test->flags |= ETH_TEST_FL_FAILED; 1988 } 1989 1990 msleep_interruptible(4 * 1000); 1991} 1992 1993static const struct ethtool_ops igc_ethtool_ops = { 1994 .supported_coalesce_params = ETHTOOL_COALESCE_USECS, 1995 .get_drvinfo = igc_ethtool_get_drvinfo, 1996 .get_regs_len = igc_ethtool_get_regs_len, 1997 .get_regs = igc_ethtool_get_regs, 1998 .get_wol = igc_ethtool_get_wol, 1999 .set_wol = igc_ethtool_set_wol, 2000 .get_msglevel = igc_ethtool_get_msglevel, 2001 .set_msglevel = igc_ethtool_set_msglevel, 2002 .nway_reset = igc_ethtool_nway_reset, 2003 .get_link = igc_ethtool_get_link, 2004 .get_eeprom_len = igc_ethtool_get_eeprom_len, 2005 .get_eeprom = igc_ethtool_get_eeprom, 2006 .set_eeprom = igc_ethtool_set_eeprom, 2007 .get_ringparam = igc_ethtool_get_ringparam, 2008 .set_ringparam = igc_ethtool_set_ringparam, 2009 .get_pauseparam = igc_ethtool_get_pauseparam, 2010 .set_pauseparam = igc_ethtool_set_pauseparam, 2011 .get_strings = igc_ethtool_get_strings, 2012 .get_sset_count = igc_ethtool_get_sset_count, 2013 .get_ethtool_stats = igc_ethtool_get_stats, 2014 .get_coalesce = igc_ethtool_get_coalesce, 2015 .set_coalesce = igc_ethtool_set_coalesce, 2016 .get_rxnfc = igc_ethtool_get_rxnfc, 2017 .set_rxnfc = igc_ethtool_set_rxnfc, 2018 .get_rxfh_indir_size = igc_ethtool_get_rxfh_indir_size, 2019 .get_rxfh = igc_ethtool_get_rxfh, 2020 .set_rxfh = igc_ethtool_set_rxfh, 2021 .get_ts_info = igc_ethtool_get_ts_info, 2022 .get_channels = igc_ethtool_get_channels, 2023 .set_channels = igc_ethtool_set_channels, 2024 .get_priv_flags = igc_ethtool_get_priv_flags, 2025 .set_priv_flags = igc_ethtool_set_priv_flags, 2026 .get_eee = igc_ethtool_get_eee, 2027 .set_eee = igc_ethtool_set_eee, 2028 .begin = igc_ethtool_begin, 2029 .complete = igc_ethtool_complete, 2030 .get_link_ksettings = igc_ethtool_get_link_ksettings, 2031 .set_link_ksettings = igc_ethtool_set_link_ksettings, 2032 .self_test = igc_ethtool_diag_test, 2033}; 2034 2035void igc_ethtool_set_ops(struct net_device *netdev) 2036{ 2037 netdev->ethtool_ops = &igc_ethtool_ops; 2038} 2039