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_sprintf(&p, igc_gstrings_stats[i].stat_string); 777 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++) 778 ethtool_sprintf(&p, 779 igc_gstrings_net_stats[i].stat_string); 780 for (i = 0; i < adapter->num_tx_queues; i++) { 781 ethtool_sprintf(&p, "tx_queue_%u_packets", i); 782 ethtool_sprintf(&p, "tx_queue_%u_bytes", i); 783 ethtool_sprintf(&p, "tx_queue_%u_restart", i); 784 } 785 for (i = 0; i < adapter->num_rx_queues; i++) { 786 ethtool_sprintf(&p, "rx_queue_%u_packets", i); 787 ethtool_sprintf(&p, "rx_queue_%u_bytes", i); 788 ethtool_sprintf(&p, "rx_queue_%u_drops", i); 789 ethtool_sprintf(&p, "rx_queue_%u_csum_err", i); 790 ethtool_sprintf(&p, "rx_queue_%u_alloc_failed", i); 791 } 792 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */ 793 break; 794 case ETH_SS_PRIV_FLAGS: 795 memcpy(data, igc_priv_flags_strings, 796 IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN); 797 break; 798 } 799} 800 801static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset) 802{ 803 switch (sset) { 804 case ETH_SS_STATS: 805 return IGC_STATS_LEN; 806 case ETH_SS_TEST: 807 return IGC_TEST_LEN; 808 case ETH_SS_PRIV_FLAGS: 809 return IGC_PRIV_FLAGS_STR_LEN; 810 default: 811 return -ENOTSUPP; 812 } 813} 814 815static void igc_ethtool_get_stats(struct net_device *netdev, 816 struct ethtool_stats *stats, u64 *data) 817{ 818 struct igc_adapter *adapter = netdev_priv(netdev); 819 struct rtnl_link_stats64 *net_stats = &adapter->stats64; 820 unsigned int start; 821 struct igc_ring *ring; 822 int i, j; 823 char *p; 824 825 spin_lock(&adapter->stats64_lock); 826 igc_update_stats(adapter); 827 828 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) { 829 p = (char *)adapter + igc_gstrings_stats[i].stat_offset; 830 data[i] = (igc_gstrings_stats[i].sizeof_stat == 831 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 832 } 833 for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) { 834 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset; 835 data[i] = (igc_gstrings_net_stats[j].sizeof_stat == 836 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 837 } 838 for (j = 0; j < adapter->num_tx_queues; j++) { 839 u64 restart2; 840 841 ring = adapter->tx_ring[j]; 842 do { 843 start = u64_stats_fetch_begin(&ring->tx_syncp); 844 data[i] = ring->tx_stats.packets; 845 data[i + 1] = ring->tx_stats.bytes; 846 data[i + 2] = ring->tx_stats.restart_queue; 847 } while (u64_stats_fetch_retry(&ring->tx_syncp, start)); 848 do { 849 start = u64_stats_fetch_begin(&ring->tx_syncp2); 850 restart2 = ring->tx_stats.restart_queue2; 851 } while (u64_stats_fetch_retry(&ring->tx_syncp2, start)); 852 data[i + 2] += restart2; 853 854 i += IGC_TX_QUEUE_STATS_LEN; 855 } 856 for (j = 0; j < adapter->num_rx_queues; j++) { 857 ring = adapter->rx_ring[j]; 858 do { 859 start = u64_stats_fetch_begin(&ring->rx_syncp); 860 data[i] = ring->rx_stats.packets; 861 data[i + 1] = ring->rx_stats.bytes; 862 data[i + 2] = ring->rx_stats.drops; 863 data[i + 3] = ring->rx_stats.csum_err; 864 data[i + 4] = ring->rx_stats.alloc_failed; 865 } while (u64_stats_fetch_retry(&ring->rx_syncp, start)); 866 i += IGC_RX_QUEUE_STATS_LEN; 867 } 868 spin_unlock(&adapter->stats64_lock); 869} 870 871static int igc_ethtool_get_previous_rx_coalesce(struct igc_adapter *adapter) 872{ 873 return (adapter->rx_itr_setting <= 3) ? 874 adapter->rx_itr_setting : adapter->rx_itr_setting >> 2; 875} 876 877static int igc_ethtool_get_previous_tx_coalesce(struct igc_adapter *adapter) 878{ 879 return (adapter->tx_itr_setting <= 3) ? 880 adapter->tx_itr_setting : adapter->tx_itr_setting >> 2; 881} 882 883static int igc_ethtool_get_coalesce(struct net_device *netdev, 884 struct ethtool_coalesce *ec, 885 struct kernel_ethtool_coalesce *kernel_coal, 886 struct netlink_ext_ack *extack) 887{ 888 struct igc_adapter *adapter = netdev_priv(netdev); 889 890 ec->rx_coalesce_usecs = igc_ethtool_get_previous_rx_coalesce(adapter); 891 ec->tx_coalesce_usecs = igc_ethtool_get_previous_tx_coalesce(adapter); 892 893 return 0; 894} 895 896static int igc_ethtool_set_coalesce(struct net_device *netdev, 897 struct ethtool_coalesce *ec, 898 struct kernel_ethtool_coalesce *kernel_coal, 899 struct netlink_ext_ack *extack) 900{ 901 struct igc_adapter *adapter = netdev_priv(netdev); 902 int i; 903 904 if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS || 905 (ec->rx_coalesce_usecs > 3 && 906 ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) || 907 ec->rx_coalesce_usecs == 2) 908 return -EINVAL; 909 910 if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS || 911 (ec->tx_coalesce_usecs > 3 && 912 ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) || 913 ec->tx_coalesce_usecs == 2) 914 return -EINVAL; 915 916 if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) && 917 ec->tx_coalesce_usecs != igc_ethtool_get_previous_tx_coalesce(adapter)) { 918 NL_SET_ERR_MSG_MOD(extack, 919 "Queue Pair mode enabled, both Rx and Tx coalescing controlled by rx-usecs"); 920 return -EINVAL; 921 } 922 923 /* If ITR is disabled, disable DMAC */ 924 if (ec->rx_coalesce_usecs == 0) { 925 if (adapter->flags & IGC_FLAG_DMAC) 926 adapter->flags &= ~IGC_FLAG_DMAC; 927 } 928 929 /* convert to rate of irq's per second */ 930 if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3) 931 adapter->rx_itr_setting = ec->rx_coalesce_usecs; 932 else 933 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2; 934 935 /* convert to rate of irq's per second */ 936 if (adapter->flags & IGC_FLAG_QUEUE_PAIRS) 937 adapter->tx_itr_setting = adapter->rx_itr_setting; 938 else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3) 939 adapter->tx_itr_setting = ec->tx_coalesce_usecs; 940 else 941 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2; 942 943 for (i = 0; i < adapter->num_q_vectors; i++) { 944 struct igc_q_vector *q_vector = adapter->q_vector[i]; 945 946 q_vector->tx.work_limit = adapter->tx_work_limit; 947 if (q_vector->rx.ring) 948 q_vector->itr_val = adapter->rx_itr_setting; 949 else 950 q_vector->itr_val = adapter->tx_itr_setting; 951 if (q_vector->itr_val && q_vector->itr_val <= 3) 952 q_vector->itr_val = IGC_START_ITR; 953 q_vector->set_itr = 1; 954 } 955 956 return 0; 957} 958 959#define ETHER_TYPE_FULL_MASK ((__force __be16)~0) 960#define VLAN_TCI_FULL_MASK ((__force __be16)~0) 961static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter, 962 struct ethtool_rxnfc *cmd) 963{ 964 struct ethtool_rx_flow_spec *fsp = &cmd->fs; 965 struct igc_nfc_rule *rule = NULL; 966 967 cmd->data = IGC_MAX_RXNFC_RULES; 968 969 mutex_lock(&adapter->nfc_rule_lock); 970 971 rule = igc_get_nfc_rule(adapter, fsp->location); 972 if (!rule) 973 goto out; 974 975 fsp->flow_type = ETHER_FLOW; 976 fsp->ring_cookie = rule->action; 977 978 if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) { 979 fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype); 980 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK; 981 } 982 983 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) { 984 fsp->flow_type |= FLOW_EXT; 985 fsp->h_ext.vlan_etype = rule->filter.vlan_etype; 986 fsp->m_ext.vlan_etype = ETHER_TYPE_FULL_MASK; 987 } 988 989 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) { 990 fsp->flow_type |= FLOW_EXT; 991 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci); 992 fsp->m_ext.vlan_tci = htons(rule->filter.vlan_tci_mask); 993 } 994 995 if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) { 996 ether_addr_copy(fsp->h_u.ether_spec.h_dest, 997 rule->filter.dst_addr); 998 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest); 999 } 1000 1001 if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) { 1002 ether_addr_copy(fsp->h_u.ether_spec.h_source, 1003 rule->filter.src_addr); 1004 eth_broadcast_addr(fsp->m_u.ether_spec.h_source); 1005 } 1006 1007 if (rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) { 1008 fsp->flow_type |= FLOW_EXT; 1009 memcpy(fsp->h_ext.data, rule->filter.user_data, sizeof(fsp->h_ext.data)); 1010 memcpy(fsp->m_ext.data, rule->filter.user_mask, sizeof(fsp->m_ext.data)); 1011 } 1012 1013 mutex_unlock(&adapter->nfc_rule_lock); 1014 return 0; 1015 1016out: 1017 mutex_unlock(&adapter->nfc_rule_lock); 1018 return -EINVAL; 1019} 1020 1021static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter, 1022 struct ethtool_rxnfc *cmd, 1023 u32 *rule_locs) 1024{ 1025 struct igc_nfc_rule *rule; 1026 int cnt = 0; 1027 1028 cmd->data = IGC_MAX_RXNFC_RULES; 1029 1030 mutex_lock(&adapter->nfc_rule_lock); 1031 1032 list_for_each_entry(rule, &adapter->nfc_rule_list, list) { 1033 if (cnt == cmd->rule_cnt) { 1034 mutex_unlock(&adapter->nfc_rule_lock); 1035 return -EMSGSIZE; 1036 } 1037 rule_locs[cnt] = rule->location; 1038 cnt++; 1039 } 1040 1041 mutex_unlock(&adapter->nfc_rule_lock); 1042 1043 cmd->rule_cnt = cnt; 1044 1045 return 0; 1046} 1047 1048static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter, 1049 struct ethtool_rxnfc *cmd) 1050{ 1051 cmd->data = 0; 1052 1053 /* Report default options for RSS on igc */ 1054 switch (cmd->flow_type) { 1055 case TCP_V4_FLOW: 1056 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1057 fallthrough; 1058 case UDP_V4_FLOW: 1059 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 1060 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1061 fallthrough; 1062 case SCTP_V4_FLOW: 1063 case AH_ESP_V4_FLOW: 1064 case AH_V4_FLOW: 1065 case ESP_V4_FLOW: 1066 case IPV4_FLOW: 1067 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1068 break; 1069 case TCP_V6_FLOW: 1070 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1071 fallthrough; 1072 case UDP_V6_FLOW: 1073 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 1074 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1075 fallthrough; 1076 case SCTP_V6_FLOW: 1077 case AH_ESP_V6_FLOW: 1078 case AH_V6_FLOW: 1079 case ESP_V6_FLOW: 1080 case IPV6_FLOW: 1081 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1082 break; 1083 default: 1084 return -EINVAL; 1085 } 1086 1087 return 0; 1088} 1089 1090static int igc_ethtool_get_rxnfc(struct net_device *dev, 1091 struct ethtool_rxnfc *cmd, u32 *rule_locs) 1092{ 1093 struct igc_adapter *adapter = netdev_priv(dev); 1094 1095 switch (cmd->cmd) { 1096 case ETHTOOL_GRXRINGS: 1097 cmd->data = adapter->num_rx_queues; 1098 return 0; 1099 case ETHTOOL_GRXCLSRLCNT: 1100 cmd->rule_cnt = adapter->nfc_rule_count; 1101 return 0; 1102 case ETHTOOL_GRXCLSRULE: 1103 return igc_ethtool_get_nfc_rule(adapter, cmd); 1104 case ETHTOOL_GRXCLSRLALL: 1105 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs); 1106 case ETHTOOL_GRXFH: 1107 return igc_ethtool_get_rss_hash_opts(adapter, cmd); 1108 default: 1109 return -EOPNOTSUPP; 1110 } 1111} 1112 1113#define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \ 1114 IGC_FLAG_RSS_FIELD_IPV6_UDP) 1115static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter, 1116 struct ethtool_rxnfc *nfc) 1117{ 1118 u32 flags = adapter->flags; 1119 1120 /* RSS does not support anything other than hashing 1121 * to queues on src and dst IPs and ports 1122 */ 1123 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 1124 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 1125 return -EINVAL; 1126 1127 switch (nfc->flow_type) { 1128 case TCP_V4_FLOW: 1129 case TCP_V6_FLOW: 1130 if (!(nfc->data & RXH_IP_SRC) || 1131 !(nfc->data & RXH_IP_DST) || 1132 !(nfc->data & RXH_L4_B_0_1) || 1133 !(nfc->data & RXH_L4_B_2_3)) 1134 return -EINVAL; 1135 break; 1136 case UDP_V4_FLOW: 1137 if (!(nfc->data & RXH_IP_SRC) || 1138 !(nfc->data & RXH_IP_DST)) 1139 return -EINVAL; 1140 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1141 case 0: 1142 flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP; 1143 break; 1144 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1145 flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP; 1146 break; 1147 default: 1148 return -EINVAL; 1149 } 1150 break; 1151 case UDP_V6_FLOW: 1152 if (!(nfc->data & RXH_IP_SRC) || 1153 !(nfc->data & RXH_IP_DST)) 1154 return -EINVAL; 1155 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1156 case 0: 1157 flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP; 1158 break; 1159 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1160 flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP; 1161 break; 1162 default: 1163 return -EINVAL; 1164 } 1165 break; 1166 case AH_ESP_V4_FLOW: 1167 case AH_V4_FLOW: 1168 case ESP_V4_FLOW: 1169 case SCTP_V4_FLOW: 1170 case AH_ESP_V6_FLOW: 1171 case AH_V6_FLOW: 1172 case ESP_V6_FLOW: 1173 case SCTP_V6_FLOW: 1174 if (!(nfc->data & RXH_IP_SRC) || 1175 !(nfc->data & RXH_IP_DST) || 1176 (nfc->data & RXH_L4_B_0_1) || 1177 (nfc->data & RXH_L4_B_2_3)) 1178 return -EINVAL; 1179 break; 1180 default: 1181 return -EINVAL; 1182 } 1183 1184 /* if we changed something we need to update flags */ 1185 if (flags != adapter->flags) { 1186 struct igc_hw *hw = &adapter->hw; 1187 u32 mrqc = rd32(IGC_MRQC); 1188 1189 if ((flags & UDP_RSS_FLAGS) && 1190 !(adapter->flags & UDP_RSS_FLAGS)) 1191 netdev_err(adapter->netdev, 1192 "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n"); 1193 1194 adapter->flags = flags; 1195 1196 /* Perform hash on these packet types */ 1197 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 | 1198 IGC_MRQC_RSS_FIELD_IPV4_TCP | 1199 IGC_MRQC_RSS_FIELD_IPV6 | 1200 IGC_MRQC_RSS_FIELD_IPV6_TCP; 1201 1202 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP | 1203 IGC_MRQC_RSS_FIELD_IPV6_UDP); 1204 1205 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 1206 mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP; 1207 1208 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 1209 mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP; 1210 1211 wr32(IGC_MRQC, mrqc); 1212 } 1213 1214 return 0; 1215} 1216 1217static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule, 1218 const struct ethtool_rx_flow_spec *fsp) 1219{ 1220 INIT_LIST_HEAD(&rule->list); 1221 1222 rule->action = fsp->ring_cookie; 1223 rule->location = fsp->location; 1224 1225 if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) { 1226 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci); 1227 rule->filter.vlan_tci_mask = ntohs(fsp->m_ext.vlan_tci); 1228 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI; 1229 } 1230 1231 if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) { 1232 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto); 1233 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE; 1234 } 1235 1236 /* Both source and destination address filters only support the full 1237 * mask. 1238 */ 1239 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) { 1240 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR; 1241 ether_addr_copy(rule->filter.src_addr, 1242 fsp->h_u.ether_spec.h_source); 1243 } 1244 1245 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) { 1246 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR; 1247 ether_addr_copy(rule->filter.dst_addr, 1248 fsp->h_u.ether_spec.h_dest); 1249 } 1250 1251 /* VLAN etype matching */ 1252 if ((fsp->flow_type & FLOW_EXT) && fsp->h_ext.vlan_etype) { 1253 rule->filter.vlan_etype = fsp->h_ext.vlan_etype; 1254 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_ETYPE; 1255 } 1256 1257 /* Check for user defined data */ 1258 if ((fsp->flow_type & FLOW_EXT) && 1259 (fsp->h_ext.data[0] || fsp->h_ext.data[1])) { 1260 rule->filter.match_flags |= IGC_FILTER_FLAG_USER_DATA; 1261 memcpy(rule->filter.user_data, fsp->h_ext.data, sizeof(fsp->h_ext.data)); 1262 memcpy(rule->filter.user_mask, fsp->m_ext.data, sizeof(fsp->m_ext.data)); 1263 } 1264 1265 /* The i225/i226 has various different filters. Flex filters provide a 1266 * way to match up to the first 128 bytes of a packet. Use them for: 1267 * a) For specific user data 1268 * b) For VLAN EtherType 1269 * c) For full TCI match 1270 * d) Or in case multiple filter criteria are set 1271 * 1272 * Otherwise, use the simple MAC, VLAN PRIO or EtherType filters. 1273 */ 1274 if ((rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) || 1275 (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) || 1276 ((rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) && 1277 rule->filter.vlan_tci_mask == ntohs(VLAN_TCI_FULL_MASK)) || 1278 (rule->filter.match_flags & (rule->filter.match_flags - 1))) 1279 rule->flex = true; 1280 else 1281 rule->flex = false; 1282} 1283 1284/** 1285 * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid 1286 * @adapter: Pointer to adapter 1287 * @rule: Rule under evaluation 1288 * 1289 * The driver doesn't support rules with multiple matches so if more than 1290 * one bit in filter flags is set, @rule is considered invalid. 1291 * 1292 * Also, if there is already another rule with the same filter in a different 1293 * location, @rule is considered invalid. 1294 * 1295 * Context: Expects adapter->nfc_rule_lock to be held by caller. 1296 * 1297 * Return: 0 in case of success, negative errno code otherwise. 1298 */ 1299static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter, 1300 struct igc_nfc_rule *rule) 1301{ 1302 struct net_device *dev = adapter->netdev; 1303 u8 flags = rule->filter.match_flags; 1304 struct igc_nfc_rule *tmp; 1305 1306 if (!flags) { 1307 netdev_dbg(dev, "Rule with no match\n"); 1308 return -EINVAL; 1309 } 1310 1311 list_for_each_entry(tmp, &adapter->nfc_rule_list, list) { 1312 if (!memcmp(&rule->filter, &tmp->filter, 1313 sizeof(rule->filter)) && 1314 tmp->location != rule->location) { 1315 netdev_dbg(dev, "Rule already exists\n"); 1316 return -EEXIST; 1317 } 1318 } 1319 1320 return 0; 1321} 1322 1323static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter, 1324 struct ethtool_rxnfc *cmd) 1325{ 1326 struct net_device *netdev = adapter->netdev; 1327 struct ethtool_rx_flow_spec *fsp = 1328 (struct ethtool_rx_flow_spec *)&cmd->fs; 1329 struct igc_nfc_rule *rule, *old_rule; 1330 int err; 1331 1332 if (!(netdev->hw_features & NETIF_F_NTUPLE)) { 1333 netdev_dbg(netdev, "N-tuple filters disabled\n"); 1334 return -EOPNOTSUPP; 1335 } 1336 1337 if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) { 1338 netdev_dbg(netdev, "Only ethernet flow type is supported\n"); 1339 return -EOPNOTSUPP; 1340 } 1341 1342 if (fsp->ring_cookie >= adapter->num_rx_queues) { 1343 netdev_dbg(netdev, "Invalid action\n"); 1344 return -EINVAL; 1345 } 1346 1347 /* There are two ways to match the VLAN TCI: 1348 * 1. Match on PCP field and use vlan prio filter for it 1349 * 2. Match on complete TCI field and use flex filter for it 1350 */ 1351 if ((fsp->flow_type & FLOW_EXT) && 1352 fsp->m_ext.vlan_tci && 1353 fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK) && 1354 fsp->m_ext.vlan_tci != VLAN_TCI_FULL_MASK) { 1355 netdev_dbg(netdev, "VLAN mask not supported\n"); 1356 return -EOPNOTSUPP; 1357 } 1358 1359 /* VLAN EtherType can only be matched by full mask. */ 1360 if ((fsp->flow_type & FLOW_EXT) && 1361 fsp->m_ext.vlan_etype && 1362 fsp->m_ext.vlan_etype != ETHER_TYPE_FULL_MASK) { 1363 netdev_dbg(netdev, "VLAN EtherType mask not supported\n"); 1364 return -EOPNOTSUPP; 1365 } 1366 1367 if (fsp->location >= IGC_MAX_RXNFC_RULES) { 1368 netdev_dbg(netdev, "Invalid location\n"); 1369 return -EINVAL; 1370 } 1371 1372 rule = kzalloc(sizeof(*rule), GFP_KERNEL); 1373 if (!rule) 1374 return -ENOMEM; 1375 1376 igc_ethtool_init_nfc_rule(rule, fsp); 1377 1378 mutex_lock(&adapter->nfc_rule_lock); 1379 1380 err = igc_ethtool_check_nfc_rule(adapter, rule); 1381 if (err) 1382 goto err; 1383 1384 old_rule = igc_get_nfc_rule(adapter, fsp->location); 1385 if (old_rule) 1386 igc_del_nfc_rule(adapter, old_rule); 1387 1388 err = igc_add_nfc_rule(adapter, rule); 1389 if (err) 1390 goto err; 1391 1392 mutex_unlock(&adapter->nfc_rule_lock); 1393 return 0; 1394 1395err: 1396 mutex_unlock(&adapter->nfc_rule_lock); 1397 kfree(rule); 1398 return err; 1399} 1400 1401static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter, 1402 struct ethtool_rxnfc *cmd) 1403{ 1404 struct ethtool_rx_flow_spec *fsp = 1405 (struct ethtool_rx_flow_spec *)&cmd->fs; 1406 struct igc_nfc_rule *rule; 1407 1408 mutex_lock(&adapter->nfc_rule_lock); 1409 1410 rule = igc_get_nfc_rule(adapter, fsp->location); 1411 if (!rule) { 1412 mutex_unlock(&adapter->nfc_rule_lock); 1413 return -EINVAL; 1414 } 1415 1416 igc_del_nfc_rule(adapter, rule); 1417 1418 mutex_unlock(&adapter->nfc_rule_lock); 1419 return 0; 1420} 1421 1422static int igc_ethtool_set_rxnfc(struct net_device *dev, 1423 struct ethtool_rxnfc *cmd) 1424{ 1425 struct igc_adapter *adapter = netdev_priv(dev); 1426 1427 switch (cmd->cmd) { 1428 case ETHTOOL_SRXFH: 1429 return igc_ethtool_set_rss_hash_opt(adapter, cmd); 1430 case ETHTOOL_SRXCLSRLINS: 1431 return igc_ethtool_add_nfc_rule(adapter, cmd); 1432 case ETHTOOL_SRXCLSRLDEL: 1433 return igc_ethtool_del_nfc_rule(adapter, cmd); 1434 default: 1435 return -EOPNOTSUPP; 1436 } 1437} 1438 1439void igc_write_rss_indir_tbl(struct igc_adapter *adapter) 1440{ 1441 struct igc_hw *hw = &adapter->hw; 1442 u32 reg = IGC_RETA(0); 1443 u32 shift = 0; 1444 int i = 0; 1445 1446 while (i < IGC_RETA_SIZE) { 1447 u32 val = 0; 1448 int j; 1449 1450 for (j = 3; j >= 0; j--) { 1451 val <<= 8; 1452 val |= adapter->rss_indir_tbl[i + j]; 1453 } 1454 1455 wr32(reg, val << shift); 1456 reg += 4; 1457 i += 4; 1458 } 1459} 1460 1461static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev) 1462{ 1463 return IGC_RETA_SIZE; 1464} 1465 1466static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 1467 u8 *hfunc) 1468{ 1469 struct igc_adapter *adapter = netdev_priv(netdev); 1470 int i; 1471 1472 if (hfunc) 1473 *hfunc = ETH_RSS_HASH_TOP; 1474 if (!indir) 1475 return 0; 1476 for (i = 0; i < IGC_RETA_SIZE; i++) 1477 indir[i] = adapter->rss_indir_tbl[i]; 1478 1479 return 0; 1480} 1481 1482static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir, 1483 const u8 *key, const u8 hfunc) 1484{ 1485 struct igc_adapter *adapter = netdev_priv(netdev); 1486 u32 num_queues; 1487 int i; 1488 1489 /* We do not allow change in unsupported parameters */ 1490 if (key || 1491 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) 1492 return -EOPNOTSUPP; 1493 if (!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 (indir[i] >= num_queues) 1501 return -EINVAL; 1502 1503 for (i = 0; i < IGC_RETA_SIZE; i++) 1504 adapter->rss_indir_tbl[i] = 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_eee *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 edata->advertised = 1634 mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert); 1635 1636 *edata = adapter->eee; 1637 edata->supported = SUPPORTED_Autoneg; 1638 1639 eeer = rd32(IGC_EEER); 1640 1641 /* EEE status on negotiated link */ 1642 if (eeer & IGC_EEER_EEE_NEG) 1643 edata->eee_active = true; 1644 1645 if (eeer & IGC_EEER_TX_LPI_EN) 1646 edata->tx_lpi_enabled = true; 1647 1648 edata->eee_enabled = hw->dev_spec._base.eee_enable; 1649 1650 edata->advertised = SUPPORTED_Autoneg; 1651 edata->lp_advertised = SUPPORTED_Autoneg; 1652 1653 /* Report correct negotiated EEE status for devices that 1654 * wrongly report EEE at half-duplex 1655 */ 1656 if (adapter->link_duplex == HALF_DUPLEX) { 1657 edata->eee_enabled = false; 1658 edata->eee_active = false; 1659 edata->tx_lpi_enabled = false; 1660 edata->advertised &= ~edata->advertised; 1661 } 1662 1663 return 0; 1664} 1665 1666static int igc_ethtool_set_eee(struct net_device *netdev, 1667 struct ethtool_eee *edata) 1668{ 1669 struct igc_adapter *adapter = netdev_priv(netdev); 1670 struct igc_hw *hw = &adapter->hw; 1671 struct ethtool_eee eee_curr; 1672 s32 ret_val; 1673 1674 memset(&eee_curr, 0, sizeof(struct ethtool_eee)); 1675 1676 ret_val = igc_ethtool_get_eee(netdev, &eee_curr); 1677 if (ret_val) { 1678 netdev_err(netdev, 1679 "Problem setting EEE advertisement options\n"); 1680 return -EINVAL; 1681 } 1682 1683 if (eee_curr.eee_enabled) { 1684 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) { 1685 netdev_err(netdev, 1686 "Setting EEE tx-lpi is not supported\n"); 1687 return -EINVAL; 1688 } 1689 1690 /* Tx LPI timer is not implemented currently */ 1691 if (edata->tx_lpi_timer) { 1692 netdev_err(netdev, 1693 "Setting EEE Tx LPI timer is not supported\n"); 1694 return -EINVAL; 1695 } 1696 } else if (!edata->eee_enabled) { 1697 netdev_err(netdev, 1698 "Setting EEE options are not supported with EEE disabled\n"); 1699 return -EINVAL; 1700 } 1701 1702 adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised); 1703 if (hw->dev_spec._base.eee_enable != edata->eee_enabled) { 1704 hw->dev_spec._base.eee_enable = edata->eee_enabled; 1705 adapter->flags |= IGC_FLAG_EEE; 1706 1707 /* reset link */ 1708 if (netif_running(netdev)) 1709 igc_reinit_locked(adapter); 1710 else 1711 igc_reset(adapter); 1712 } 1713 1714 return 0; 1715} 1716 1717static int igc_ethtool_begin(struct net_device *netdev) 1718{ 1719 struct igc_adapter *adapter = netdev_priv(netdev); 1720 1721 pm_runtime_get_sync(&adapter->pdev->dev); 1722 return 0; 1723} 1724 1725static void igc_ethtool_complete(struct net_device *netdev) 1726{ 1727 struct igc_adapter *adapter = netdev_priv(netdev); 1728 1729 pm_runtime_put(&adapter->pdev->dev); 1730} 1731 1732static int igc_ethtool_get_link_ksettings(struct net_device *netdev, 1733 struct ethtool_link_ksettings *cmd) 1734{ 1735 struct igc_adapter *adapter = netdev_priv(netdev); 1736 struct igc_hw *hw = &adapter->hw; 1737 u32 status; 1738 u32 speed; 1739 1740 ethtool_link_ksettings_zero_link_mode(cmd, supported); 1741 ethtool_link_ksettings_zero_link_mode(cmd, advertising); 1742 1743 /* supported link modes */ 1744 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half); 1745 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full); 1746 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half); 1747 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full); 1748 ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full); 1749 ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full); 1750 1751 /* twisted pair */ 1752 cmd->base.port = PORT_TP; 1753 cmd->base.phy_address = hw->phy.addr; 1754 ethtool_link_ksettings_add_link_mode(cmd, supported, TP); 1755 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); 1756 1757 /* advertising link modes */ 1758 if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF) 1759 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half); 1760 if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL) 1761 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full); 1762 if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF) 1763 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half); 1764 if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL) 1765 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full); 1766 if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL) 1767 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full); 1768 if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL) 1769 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full); 1770 1771 /* set autoneg settings */ 1772 if (hw->mac.autoneg == 1) { 1773 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 1774 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1775 Autoneg); 1776 } 1777 1778 /* Set pause flow control settings */ 1779 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); 1780 1781 switch (hw->fc.requested_mode) { 1782 case igc_fc_full: 1783 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1784 break; 1785 case igc_fc_rx_pause: 1786 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1787 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1788 Asym_Pause); 1789 break; 1790 case igc_fc_tx_pause: 1791 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1792 Asym_Pause); 1793 break; 1794 default: 1795 break; 1796 } 1797 1798 status = pm_runtime_suspended(&adapter->pdev->dev) ? 1799 0 : rd32(IGC_STATUS); 1800 1801 if (status & IGC_STATUS_LU) { 1802 if (status & IGC_STATUS_SPEED_1000) { 1803 /* For I225, STATUS will indicate 1G speed in both 1804 * 1 Gbps and 2.5 Gbps link modes. 1805 * An additional bit is used 1806 * to differentiate between 1 Gbps and 2.5 Gbps. 1807 */ 1808 if (hw->mac.type == igc_i225 && 1809 (status & IGC_STATUS_SPEED_2500)) { 1810 speed = SPEED_2500; 1811 } else { 1812 speed = SPEED_1000; 1813 } 1814 } else if (status & IGC_STATUS_SPEED_100) { 1815 speed = SPEED_100; 1816 } else { 1817 speed = SPEED_10; 1818 } 1819 if ((status & IGC_STATUS_FD) || 1820 hw->phy.media_type != igc_media_type_copper) 1821 cmd->base.duplex = DUPLEX_FULL; 1822 else 1823 cmd->base.duplex = DUPLEX_HALF; 1824 } else { 1825 speed = SPEED_UNKNOWN; 1826 cmd->base.duplex = DUPLEX_UNKNOWN; 1827 } 1828 cmd->base.speed = speed; 1829 if (hw->mac.autoneg) 1830 cmd->base.autoneg = AUTONEG_ENABLE; 1831 else 1832 cmd->base.autoneg = AUTONEG_DISABLE; 1833 1834 /* MDI-X => 2; MDI =>1; Invalid =>0 */ 1835 if (hw->phy.media_type == igc_media_type_copper) 1836 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X : 1837 ETH_TP_MDI; 1838 else 1839 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID; 1840 1841 if (hw->phy.mdix == AUTO_ALL_MODES) 1842 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; 1843 else 1844 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix; 1845 1846 return 0; 1847} 1848 1849static int 1850igc_ethtool_set_link_ksettings(struct net_device *netdev, 1851 const struct ethtool_link_ksettings *cmd) 1852{ 1853 struct igc_adapter *adapter = netdev_priv(netdev); 1854 struct net_device *dev = adapter->netdev; 1855 struct igc_hw *hw = &adapter->hw; 1856 u16 advertised = 0; 1857 1858 /* When adapter in resetting mode, autoneg/speed/duplex 1859 * cannot be changed 1860 */ 1861 if (igc_check_reset_block(hw)) { 1862 netdev_err(dev, "Cannot change link characteristics when reset is active\n"); 1863 return -EINVAL; 1864 } 1865 1866 /* MDI setting is only allowed when autoneg enabled because 1867 * some hardware doesn't allow MDI setting when speed or 1868 * duplex is forced. 1869 */ 1870 if (cmd->base.eth_tp_mdix_ctrl) { 1871 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO && 1872 cmd->base.autoneg != AUTONEG_ENABLE) { 1873 netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n"); 1874 return -EINVAL; 1875 } 1876 } 1877 1878 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 1879 usleep_range(1000, 2000); 1880 1881 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1882 2500baseT_Full)) 1883 advertised |= ADVERTISE_2500_FULL; 1884 1885 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1886 1000baseT_Full)) 1887 advertised |= ADVERTISE_1000_FULL; 1888 1889 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1890 100baseT_Full)) 1891 advertised |= ADVERTISE_100_FULL; 1892 1893 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1894 100baseT_Half)) 1895 advertised |= ADVERTISE_100_HALF; 1896 1897 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1898 10baseT_Full)) 1899 advertised |= ADVERTISE_10_FULL; 1900 1901 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1902 10baseT_Half)) 1903 advertised |= ADVERTISE_10_HALF; 1904 1905 if (cmd->base.autoneg == AUTONEG_ENABLE) { 1906 hw->mac.autoneg = 1; 1907 hw->phy.autoneg_advertised = advertised; 1908 if (adapter->fc_autoneg) 1909 hw->fc.requested_mode = igc_fc_default; 1910 } else { 1911 netdev_info(dev, "Force mode currently not supported\n"); 1912 } 1913 1914 /* MDI-X => 2; MDI => 1; Auto => 3 */ 1915 if (cmd->base.eth_tp_mdix_ctrl) { 1916 /* fix up the value for auto (3 => 0) as zero is mapped 1917 * internally to auto 1918 */ 1919 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO) 1920 hw->phy.mdix = AUTO_ALL_MODES; 1921 else 1922 hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl; 1923 } 1924 1925 /* reset the link */ 1926 if (netif_running(adapter->netdev)) { 1927 igc_down(adapter); 1928 igc_up(adapter); 1929 } else { 1930 igc_reset(adapter); 1931 } 1932 1933 clear_bit(__IGC_RESETTING, &adapter->state); 1934 1935 return 0; 1936} 1937 1938static void igc_ethtool_diag_test(struct net_device *netdev, 1939 struct ethtool_test *eth_test, u64 *data) 1940{ 1941 struct igc_adapter *adapter = netdev_priv(netdev); 1942 bool if_running = netif_running(netdev); 1943 1944 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 1945 netdev_info(adapter->netdev, "Offline testing starting"); 1946 set_bit(__IGC_TESTING, &adapter->state); 1947 1948 /* Link test performed before hardware reset so autoneg doesn't 1949 * interfere with test result 1950 */ 1951 if (!igc_link_test(adapter, &data[TEST_LINK])) 1952 eth_test->flags |= ETH_TEST_FL_FAILED; 1953 1954 if (if_running) 1955 igc_close(netdev); 1956 else 1957 igc_reset(adapter); 1958 1959 netdev_info(adapter->netdev, "Register testing starting"); 1960 if (!igc_reg_test(adapter, &data[TEST_REG])) 1961 eth_test->flags |= ETH_TEST_FL_FAILED; 1962 1963 igc_reset(adapter); 1964 1965 netdev_info(adapter->netdev, "EEPROM testing starting"); 1966 if (!igc_eeprom_test(adapter, &data[TEST_EEP])) 1967 eth_test->flags |= ETH_TEST_FL_FAILED; 1968 1969 igc_reset(adapter); 1970 1971 /* loopback and interrupt tests 1972 * will be implemented in the future 1973 */ 1974 data[TEST_LOOP] = 0; 1975 data[TEST_IRQ] = 0; 1976 1977 clear_bit(__IGC_TESTING, &adapter->state); 1978 if (if_running) 1979 igc_open(netdev); 1980 } else { 1981 netdev_info(adapter->netdev, "Online testing starting"); 1982 1983 /* register, eeprom, intr and loopback tests not run online */ 1984 data[TEST_REG] = 0; 1985 data[TEST_EEP] = 0; 1986 data[TEST_IRQ] = 0; 1987 data[TEST_LOOP] = 0; 1988 1989 if (!igc_link_test(adapter, &data[TEST_LINK])) 1990 eth_test->flags |= ETH_TEST_FL_FAILED; 1991 } 1992 1993 msleep_interruptible(4 * 1000); 1994} 1995 1996static const struct ethtool_ops igc_ethtool_ops = { 1997 .supported_coalesce_params = ETHTOOL_COALESCE_USECS, 1998 .get_drvinfo = igc_ethtool_get_drvinfo, 1999 .get_regs_len = igc_ethtool_get_regs_len, 2000 .get_regs = igc_ethtool_get_regs, 2001 .get_wol = igc_ethtool_get_wol, 2002 .set_wol = igc_ethtool_set_wol, 2003 .get_msglevel = igc_ethtool_get_msglevel, 2004 .set_msglevel = igc_ethtool_set_msglevel, 2005 .nway_reset = igc_ethtool_nway_reset, 2006 .get_link = igc_ethtool_get_link, 2007 .get_eeprom_len = igc_ethtool_get_eeprom_len, 2008 .get_eeprom = igc_ethtool_get_eeprom, 2009 .set_eeprom = igc_ethtool_set_eeprom, 2010 .get_ringparam = igc_ethtool_get_ringparam, 2011 .set_ringparam = igc_ethtool_set_ringparam, 2012 .get_pauseparam = igc_ethtool_get_pauseparam, 2013 .set_pauseparam = igc_ethtool_set_pauseparam, 2014 .get_strings = igc_ethtool_get_strings, 2015 .get_sset_count = igc_ethtool_get_sset_count, 2016 .get_ethtool_stats = igc_ethtool_get_stats, 2017 .get_coalesce = igc_ethtool_get_coalesce, 2018 .set_coalesce = igc_ethtool_set_coalesce, 2019 .get_rxnfc = igc_ethtool_get_rxnfc, 2020 .set_rxnfc = igc_ethtool_set_rxnfc, 2021 .get_rxfh_indir_size = igc_ethtool_get_rxfh_indir_size, 2022 .get_rxfh = igc_ethtool_get_rxfh, 2023 .set_rxfh = igc_ethtool_set_rxfh, 2024 .get_ts_info = igc_ethtool_get_ts_info, 2025 .get_channels = igc_ethtool_get_channels, 2026 .set_channels = igc_ethtool_set_channels, 2027 .get_priv_flags = igc_ethtool_get_priv_flags, 2028 .set_priv_flags = igc_ethtool_set_priv_flags, 2029 .get_eee = igc_ethtool_get_eee, 2030 .set_eee = igc_ethtool_set_eee, 2031 .begin = igc_ethtool_begin, 2032 .complete = igc_ethtool_complete, 2033 .get_link_ksettings = igc_ethtool_get_link_ksettings, 2034 .set_link_ksettings = igc_ethtool_set_link_ksettings, 2035 .self_test = igc_ethtool_diag_test, 2036}; 2037 2038void igc_ethtool_set_ops(struct net_device *netdev) 2039{ 2040 netdev->ethtool_ops = &igc_ethtool_ops; 2041} 2042