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 */ 13 struct 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 25 static 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 }; 71 72 #define IGC_NETDEV_STAT(_net_stat) { \ 73 .stat_string = __stringify(_net_stat), \ 74 .sizeof_stat = sizeof_field(struct rtnl_link_stats64, _net_stat), \ 75 .stat_offset = offsetof(struct rtnl_link_stats64, _net_stat) \ 76 } 77 78 static const struct igc_stats igc_gstrings_net_stats[] = { 79 IGC_NETDEV_STAT(rx_errors), 80 IGC_NETDEV_STAT(tx_errors), 81 IGC_NETDEV_STAT(tx_dropped), 82 IGC_NETDEV_STAT(rx_length_errors), 83 IGC_NETDEV_STAT(rx_over_errors), 84 IGC_NETDEV_STAT(rx_frame_errors), 85 IGC_NETDEV_STAT(rx_fifo_errors), 86 IGC_NETDEV_STAT(tx_fifo_errors), 87 IGC_NETDEV_STAT(tx_heartbeat_errors) 88 }; 89 90 enum igc_diagnostics_results { 91 TEST_REG = 0, 92 TEST_EEP, 93 TEST_IRQ, 94 TEST_LOOP, 95 TEST_LINK 96 }; 97 98 static const char igc_gstrings_test[][ETH_GSTRING_LEN] = { 99 [TEST_REG] = "Register test (offline)", 100 [TEST_EEP] = "Eeprom test (offline)", 101 [TEST_IRQ] = "Interrupt test (offline)", 102 [TEST_LOOP] = "Loopback test (offline)", 103 [TEST_LINK] = "Link test (on/offline)" 104 }; 105 106 #define IGC_TEST_LEN (sizeof(igc_gstrings_test) / ETH_GSTRING_LEN) 107 108 #define IGC_GLOBAL_STATS_LEN \ 109 (sizeof(igc_gstrings_stats) / sizeof(struct igc_stats)) 110 #define IGC_NETDEV_STATS_LEN \ 111 (sizeof(igc_gstrings_net_stats) / sizeof(struct igc_stats)) 112 #define IGC_RX_QUEUE_STATS_LEN \ 113 (sizeof(struct igc_rx_queue_stats) / sizeof(u64)) 114 #define IGC_TX_QUEUE_STATS_LEN 3 /* packets, bytes, restart_queue */ 115 #define IGC_QUEUE_STATS_LEN \ 116 ((((struct igc_adapter *)netdev_priv(netdev))->num_rx_queues * \ 117 IGC_RX_QUEUE_STATS_LEN) + \ 118 (((struct igc_adapter *)netdev_priv(netdev))->num_tx_queues * \ 119 IGC_TX_QUEUE_STATS_LEN)) 120 #define IGC_STATS_LEN \ 121 (IGC_GLOBAL_STATS_LEN + IGC_NETDEV_STATS_LEN + IGC_QUEUE_STATS_LEN) 122 123 static const char igc_priv_flags_strings[][ETH_GSTRING_LEN] = { 124 #define IGC_PRIV_FLAGS_LEGACY_RX BIT(0) 125 "legacy-rx", 126 }; 127 128 #define IGC_PRIV_FLAGS_STR_LEN ARRAY_SIZE(igc_priv_flags_strings) 129 130 static void igc_ethtool_get_drvinfo(struct net_device *netdev, 131 struct ethtool_drvinfo *drvinfo) 132 { 133 struct igc_adapter *adapter = netdev_priv(netdev); 134 struct igc_hw *hw = &adapter->hw; 135 u16 nvm_version = 0; 136 u16 gphy_version; 137 138 strscpy(drvinfo->driver, igc_driver_name, sizeof(drvinfo->driver)); 139 140 /* NVM image version is reported as firmware version for i225 device */ 141 hw->nvm.ops.read(hw, IGC_NVM_DEV_STARTER, 1, &nvm_version); 142 143 /* gPHY firmware version is reported as PHY FW version */ 144 gphy_version = igc_read_phy_fw_version(hw); 145 146 scnprintf(adapter->fw_version, 147 sizeof(adapter->fw_version), 148 "%x:%x", 149 nvm_version, 150 gphy_version); 151 152 strscpy(drvinfo->fw_version, adapter->fw_version, 153 sizeof(drvinfo->fw_version)); 154 155 strscpy(drvinfo->bus_info, pci_name(adapter->pdev), 156 sizeof(drvinfo->bus_info)); 157 158 drvinfo->n_priv_flags = IGC_PRIV_FLAGS_STR_LEN; 159 } 160 161 static int igc_ethtool_get_regs_len(struct net_device *netdev) 162 { 163 return IGC_REGS_LEN * sizeof(u32); 164 } 165 166 static void igc_ethtool_get_regs(struct net_device *netdev, 167 struct ethtool_regs *regs, void *p) 168 { 169 struct igc_adapter *adapter = netdev_priv(netdev); 170 struct igc_hw *hw = &adapter->hw; 171 u32 *regs_buff = p; 172 u8 i; 173 174 memset(p, 0, IGC_REGS_LEN * sizeof(u32)); 175 176 regs->version = (2u << 24) | (hw->revision_id << 16) | hw->device_id; 177 178 /* General Registers */ 179 regs_buff[0] = rd32(IGC_CTRL); 180 regs_buff[1] = rd32(IGC_STATUS); 181 regs_buff[2] = rd32(IGC_CTRL_EXT); 182 regs_buff[3] = rd32(IGC_MDIC); 183 regs_buff[4] = rd32(IGC_CONNSW); 184 185 /* NVM Register */ 186 regs_buff[5] = rd32(IGC_EECD); 187 188 /* Interrupt */ 189 /* Reading EICS for EICR because they read the 190 * same but EICS does not clear on read 191 */ 192 regs_buff[6] = rd32(IGC_EICS); 193 regs_buff[7] = rd32(IGC_EICS); 194 regs_buff[8] = rd32(IGC_EIMS); 195 regs_buff[9] = rd32(IGC_EIMC); 196 regs_buff[10] = rd32(IGC_EIAC); 197 regs_buff[11] = rd32(IGC_EIAM); 198 /* Reading ICS for ICR because they read the 199 * same but ICS does not clear on read 200 */ 201 regs_buff[12] = rd32(IGC_ICS); 202 regs_buff[13] = rd32(IGC_ICS); 203 regs_buff[14] = rd32(IGC_IMS); 204 regs_buff[15] = rd32(IGC_IMC); 205 regs_buff[16] = rd32(IGC_IAC); 206 regs_buff[17] = rd32(IGC_IAM); 207 208 /* Flow Control */ 209 regs_buff[18] = rd32(IGC_FCAL); 210 regs_buff[19] = rd32(IGC_FCAH); 211 regs_buff[20] = rd32(IGC_FCTTV); 212 regs_buff[21] = rd32(IGC_FCRTL); 213 regs_buff[22] = rd32(IGC_FCRTH); 214 regs_buff[23] = rd32(IGC_FCRTV); 215 216 /* Receive */ 217 regs_buff[24] = rd32(IGC_RCTL); 218 regs_buff[25] = rd32(IGC_RXCSUM); 219 regs_buff[26] = rd32(IGC_RLPML); 220 regs_buff[27] = rd32(IGC_RFCTL); 221 222 /* Transmit */ 223 regs_buff[28] = rd32(IGC_TCTL); 224 regs_buff[29] = rd32(IGC_TIPG); 225 226 /* Wake Up */ 227 228 /* MAC */ 229 230 /* Statistics */ 231 regs_buff[30] = adapter->stats.crcerrs; 232 regs_buff[31] = adapter->stats.algnerrc; 233 regs_buff[32] = adapter->stats.symerrs; 234 regs_buff[33] = adapter->stats.rxerrc; 235 regs_buff[34] = adapter->stats.mpc; 236 regs_buff[35] = adapter->stats.scc; 237 regs_buff[36] = adapter->stats.ecol; 238 regs_buff[37] = adapter->stats.mcc; 239 regs_buff[38] = adapter->stats.latecol; 240 regs_buff[39] = adapter->stats.colc; 241 regs_buff[40] = adapter->stats.dc; 242 regs_buff[41] = adapter->stats.tncrs; 243 regs_buff[42] = adapter->stats.sec; 244 regs_buff[43] = adapter->stats.htdpmc; 245 regs_buff[44] = adapter->stats.rlec; 246 regs_buff[45] = adapter->stats.xonrxc; 247 regs_buff[46] = adapter->stats.xontxc; 248 regs_buff[47] = adapter->stats.xoffrxc; 249 regs_buff[48] = adapter->stats.xofftxc; 250 regs_buff[49] = adapter->stats.fcruc; 251 regs_buff[50] = adapter->stats.prc64; 252 regs_buff[51] = adapter->stats.prc127; 253 regs_buff[52] = adapter->stats.prc255; 254 regs_buff[53] = adapter->stats.prc511; 255 regs_buff[54] = adapter->stats.prc1023; 256 regs_buff[55] = adapter->stats.prc1522; 257 regs_buff[56] = adapter->stats.gprc; 258 regs_buff[57] = adapter->stats.bprc; 259 regs_buff[58] = adapter->stats.mprc; 260 regs_buff[59] = adapter->stats.gptc; 261 regs_buff[60] = adapter->stats.gorc; 262 regs_buff[61] = adapter->stats.gotc; 263 regs_buff[62] = adapter->stats.rnbc; 264 regs_buff[63] = adapter->stats.ruc; 265 regs_buff[64] = adapter->stats.rfc; 266 regs_buff[65] = adapter->stats.roc; 267 regs_buff[66] = adapter->stats.rjc; 268 regs_buff[67] = adapter->stats.mgprc; 269 regs_buff[68] = adapter->stats.mgpdc; 270 regs_buff[69] = adapter->stats.mgptc; 271 regs_buff[70] = adapter->stats.tor; 272 regs_buff[71] = adapter->stats.tot; 273 regs_buff[72] = adapter->stats.tpr; 274 regs_buff[73] = adapter->stats.tpt; 275 regs_buff[74] = adapter->stats.ptc64; 276 regs_buff[75] = adapter->stats.ptc127; 277 regs_buff[76] = adapter->stats.ptc255; 278 regs_buff[77] = adapter->stats.ptc511; 279 regs_buff[78] = adapter->stats.ptc1023; 280 regs_buff[79] = adapter->stats.ptc1522; 281 regs_buff[80] = adapter->stats.mptc; 282 regs_buff[81] = adapter->stats.bptc; 283 regs_buff[82] = adapter->stats.tsctc; 284 regs_buff[83] = adapter->stats.iac; 285 regs_buff[84] = adapter->stats.rpthc; 286 regs_buff[85] = adapter->stats.hgptc; 287 regs_buff[86] = adapter->stats.hgorc; 288 regs_buff[87] = adapter->stats.hgotc; 289 regs_buff[88] = adapter->stats.lenerrs; 290 regs_buff[89] = adapter->stats.scvpc; 291 regs_buff[90] = adapter->stats.hrmpc; 292 293 for (i = 0; i < 4; i++) 294 regs_buff[91 + i] = rd32(IGC_SRRCTL(i)); 295 for (i = 0; i < 4; i++) 296 regs_buff[95 + i] = rd32(IGC_PSRTYPE(i)); 297 for (i = 0; i < 4; i++) 298 regs_buff[99 + i] = rd32(IGC_RDBAL(i)); 299 for (i = 0; i < 4; i++) 300 regs_buff[103 + i] = rd32(IGC_RDBAH(i)); 301 for (i = 0; i < 4; i++) 302 regs_buff[107 + i] = rd32(IGC_RDLEN(i)); 303 for (i = 0; i < 4; i++) 304 regs_buff[111 + i] = rd32(IGC_RDH(i)); 305 for (i = 0; i < 4; i++) 306 regs_buff[115 + i] = rd32(IGC_RDT(i)); 307 for (i = 0; i < 4; i++) 308 regs_buff[119 + i] = rd32(IGC_RXDCTL(i)); 309 310 for (i = 0; i < 10; i++) 311 regs_buff[123 + i] = rd32(IGC_EITR(i)); 312 for (i = 0; i < 16; i++) 313 regs_buff[139 + i] = rd32(IGC_RAL(i)); 314 for (i = 0; i < 16; i++) 315 regs_buff[145 + i] = rd32(IGC_RAH(i)); 316 317 for (i = 0; i < 4; i++) 318 regs_buff[149 + i] = rd32(IGC_TDBAL(i)); 319 for (i = 0; i < 4; i++) 320 regs_buff[152 + i] = rd32(IGC_TDBAH(i)); 321 for (i = 0; i < 4; i++) 322 regs_buff[156 + i] = rd32(IGC_TDLEN(i)); 323 for (i = 0; i < 4; i++) 324 regs_buff[160 + i] = rd32(IGC_TDH(i)); 325 for (i = 0; i < 4; i++) 326 regs_buff[164 + i] = rd32(IGC_TDT(i)); 327 for (i = 0; i < 4; i++) 328 regs_buff[168 + i] = rd32(IGC_TXDCTL(i)); 329 330 /* XXX: Due to a bug few lines above, RAL and RAH registers are 331 * overwritten. To preserve the ABI, we write these registers again in 332 * regs_buff. 333 */ 334 for (i = 0; i < 16; i++) 335 regs_buff[172 + i] = rd32(IGC_RAL(i)); 336 for (i = 0; i < 16; i++) 337 regs_buff[188 + i] = rd32(IGC_RAH(i)); 338 339 regs_buff[204] = rd32(IGC_VLANPQF); 340 341 for (i = 0; i < 8; i++) 342 regs_buff[205 + i] = rd32(IGC_ETQF(i)); 343 344 regs_buff[213] = adapter->stats.tlpic; 345 regs_buff[214] = adapter->stats.rlpic; 346 } 347 348 static void igc_ethtool_get_wol(struct net_device *netdev, 349 struct ethtool_wolinfo *wol) 350 { 351 struct igc_adapter *adapter = netdev_priv(netdev); 352 353 wol->wolopts = 0; 354 355 if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED)) 356 return; 357 358 wol->supported = WAKE_UCAST | WAKE_MCAST | 359 WAKE_BCAST | WAKE_MAGIC | 360 WAKE_PHY; 361 362 /* apply any specific unsupported masks here */ 363 switch (adapter->hw.device_id) { 364 default: 365 break; 366 } 367 368 if (adapter->wol & IGC_WUFC_EX) 369 wol->wolopts |= WAKE_UCAST; 370 if (adapter->wol & IGC_WUFC_MC) 371 wol->wolopts |= WAKE_MCAST; 372 if (adapter->wol & IGC_WUFC_BC) 373 wol->wolopts |= WAKE_BCAST; 374 if (adapter->wol & IGC_WUFC_MAG) 375 wol->wolopts |= WAKE_MAGIC; 376 if (adapter->wol & IGC_WUFC_LNKC) 377 wol->wolopts |= WAKE_PHY; 378 } 379 380 static int igc_ethtool_set_wol(struct net_device *netdev, 381 struct ethtool_wolinfo *wol) 382 { 383 struct igc_adapter *adapter = netdev_priv(netdev); 384 385 if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE | WAKE_FILTER)) 386 return -EOPNOTSUPP; 387 388 if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED)) 389 return wol->wolopts ? -EOPNOTSUPP : 0; 390 391 /* these settings will always override what we currently have */ 392 adapter->wol = 0; 393 394 if (wol->wolopts & WAKE_UCAST) 395 adapter->wol |= IGC_WUFC_EX; 396 if (wol->wolopts & WAKE_MCAST) 397 adapter->wol |= IGC_WUFC_MC; 398 if (wol->wolopts & WAKE_BCAST) 399 adapter->wol |= IGC_WUFC_BC; 400 if (wol->wolopts & WAKE_MAGIC) 401 adapter->wol |= IGC_WUFC_MAG; 402 if (wol->wolopts & WAKE_PHY) 403 adapter->wol |= IGC_WUFC_LNKC; 404 device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); 405 406 return 0; 407 } 408 409 static u32 igc_ethtool_get_msglevel(struct net_device *netdev) 410 { 411 struct igc_adapter *adapter = netdev_priv(netdev); 412 413 return adapter->msg_enable; 414 } 415 416 static void igc_ethtool_set_msglevel(struct net_device *netdev, u32 data) 417 { 418 struct igc_adapter *adapter = netdev_priv(netdev); 419 420 adapter->msg_enable = data; 421 } 422 423 static int igc_ethtool_nway_reset(struct net_device *netdev) 424 { 425 struct igc_adapter *adapter = netdev_priv(netdev); 426 427 if (netif_running(netdev)) 428 igc_reinit_locked(adapter); 429 return 0; 430 } 431 432 static u32 igc_ethtool_get_link(struct net_device *netdev) 433 { 434 struct igc_adapter *adapter = netdev_priv(netdev); 435 struct igc_mac_info *mac = &adapter->hw.mac; 436 437 /* If the link is not reported up to netdev, interrupts are disabled, 438 * and so the physical link state may have changed since we last 439 * looked. Set get_link_status to make sure that the true link 440 * state is interrogated, rather than pulling a cached and possibly 441 * stale link state from the driver. 442 */ 443 if (!netif_carrier_ok(netdev)) 444 mac->get_link_status = 1; 445 446 return igc_has_link(adapter); 447 } 448 449 static int igc_ethtool_get_eeprom_len(struct net_device *netdev) 450 { 451 struct igc_adapter *adapter = netdev_priv(netdev); 452 453 return adapter->hw.nvm.word_size * 2; 454 } 455 456 static int igc_ethtool_get_eeprom(struct net_device *netdev, 457 struct ethtool_eeprom *eeprom, u8 *bytes) 458 { 459 struct igc_adapter *adapter = netdev_priv(netdev); 460 struct igc_hw *hw = &adapter->hw; 461 int first_word, last_word; 462 u16 *eeprom_buff; 463 int ret_val = 0; 464 u16 i; 465 466 if (eeprom->len == 0) 467 return -EINVAL; 468 469 eeprom->magic = hw->vendor_id | (hw->device_id << 16); 470 471 first_word = eeprom->offset >> 1; 472 last_word = (eeprom->offset + eeprom->len - 1) >> 1; 473 474 eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16), 475 GFP_KERNEL); 476 if (!eeprom_buff) 477 return -ENOMEM; 478 479 if (hw->nvm.type == igc_nvm_eeprom_spi) { 480 ret_val = hw->nvm.ops.read(hw, first_word, 481 last_word - first_word + 1, 482 eeprom_buff); 483 } else { 484 for (i = 0; i < last_word - first_word + 1; i++) { 485 ret_val = hw->nvm.ops.read(hw, first_word + i, 1, 486 &eeprom_buff[i]); 487 if (ret_val) 488 break; 489 } 490 } 491 492 /* Device's eeprom is always little-endian, word addressable */ 493 for (i = 0; i < last_word - first_word + 1; i++) 494 le16_to_cpus(&eeprom_buff[i]); 495 496 memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), 497 eeprom->len); 498 kfree(eeprom_buff); 499 500 return ret_val; 501 } 502 503 static int igc_ethtool_set_eeprom(struct net_device *netdev, 504 struct ethtool_eeprom *eeprom, u8 *bytes) 505 { 506 struct igc_adapter *adapter = netdev_priv(netdev); 507 struct igc_hw *hw = &adapter->hw; 508 int max_len, first_word, last_word, ret_val = 0; 509 u16 *eeprom_buff; 510 void *ptr; 511 u16 i; 512 513 if (eeprom->len == 0) 514 return -EOPNOTSUPP; 515 516 if (hw->mac.type >= igc_i225 && 517 !igc_get_flash_presence_i225(hw)) { 518 return -EOPNOTSUPP; 519 } 520 521 if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16))) 522 return -EFAULT; 523 524 max_len = hw->nvm.word_size * 2; 525 526 first_word = eeprom->offset >> 1; 527 last_word = (eeprom->offset + eeprom->len - 1) >> 1; 528 eeprom_buff = kmalloc(max_len, GFP_KERNEL); 529 if (!eeprom_buff) 530 return -ENOMEM; 531 532 ptr = (void *)eeprom_buff; 533 534 if (eeprom->offset & 1) { 535 /* need read/modify/write of first changed EEPROM word 536 * only the second byte of the word is being modified 537 */ 538 ret_val = hw->nvm.ops.read(hw, first_word, 1, 539 &eeprom_buff[0]); 540 ptr++; 541 } 542 if (((eeprom->offset + eeprom->len) & 1) && ret_val == 0) { 543 /* need read/modify/write of last changed EEPROM word 544 * only the first byte of the word is being modified 545 */ 546 ret_val = hw->nvm.ops.read(hw, last_word, 1, 547 &eeprom_buff[last_word - first_word]); 548 } 549 550 /* Device's eeprom is always little-endian, word addressable */ 551 for (i = 0; i < last_word - first_word + 1; i++) 552 le16_to_cpus(&eeprom_buff[i]); 553 554 memcpy(ptr, bytes, eeprom->len); 555 556 for (i = 0; i < last_word - first_word + 1; i++) 557 eeprom_buff[i] = cpu_to_le16(eeprom_buff[i]); 558 559 ret_val = hw->nvm.ops.write(hw, first_word, 560 last_word - first_word + 1, eeprom_buff); 561 562 /* Update the checksum if nvm write succeeded */ 563 if (ret_val == 0) 564 hw->nvm.ops.update(hw); 565 566 kfree(eeprom_buff); 567 return ret_val; 568 } 569 570 static void igc_ethtool_get_ringparam(struct net_device *netdev, 571 struct ethtool_ringparam *ring) 572 { 573 struct igc_adapter *adapter = netdev_priv(netdev); 574 575 ring->rx_max_pending = IGC_MAX_RXD; 576 ring->tx_max_pending = IGC_MAX_TXD; 577 ring->rx_pending = adapter->rx_ring_count; 578 ring->tx_pending = adapter->tx_ring_count; 579 } 580 581 static int igc_ethtool_set_ringparam(struct net_device *netdev, 582 struct ethtool_ringparam *ring) 583 { 584 struct igc_adapter *adapter = netdev_priv(netdev); 585 struct igc_ring *temp_ring; 586 u16 new_rx_count, new_tx_count; 587 int i, err = 0; 588 589 if (ring->rx_mini_pending || ring->rx_jumbo_pending) 590 return -EINVAL; 591 592 new_rx_count = min_t(u32, ring->rx_pending, IGC_MAX_RXD); 593 new_rx_count = max_t(u16, new_rx_count, IGC_MIN_RXD); 594 new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE); 595 596 new_tx_count = min_t(u32, ring->tx_pending, IGC_MAX_TXD); 597 new_tx_count = max_t(u16, new_tx_count, IGC_MIN_TXD); 598 new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE); 599 600 if (new_tx_count == adapter->tx_ring_count && 601 new_rx_count == adapter->rx_ring_count) { 602 /* nothing to do */ 603 return 0; 604 } 605 606 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 607 usleep_range(1000, 2000); 608 609 if (!netif_running(adapter->netdev)) { 610 for (i = 0; i < adapter->num_tx_queues; i++) 611 adapter->tx_ring[i]->count = new_tx_count; 612 for (i = 0; i < adapter->num_rx_queues; i++) 613 adapter->rx_ring[i]->count = new_rx_count; 614 adapter->tx_ring_count = new_tx_count; 615 adapter->rx_ring_count = new_rx_count; 616 goto clear_reset; 617 } 618 619 if (adapter->num_tx_queues > adapter->num_rx_queues) 620 temp_ring = vmalloc(array_size(sizeof(struct igc_ring), 621 adapter->num_tx_queues)); 622 else 623 temp_ring = vmalloc(array_size(sizeof(struct igc_ring), 624 adapter->num_rx_queues)); 625 626 if (!temp_ring) { 627 err = -ENOMEM; 628 goto clear_reset; 629 } 630 631 igc_down(adapter); 632 633 /* We can't just free everything and then setup again, 634 * because the ISRs in MSI-X mode get passed pointers 635 * to the Tx and Rx ring structs. 636 */ 637 if (new_tx_count != adapter->tx_ring_count) { 638 for (i = 0; i < adapter->num_tx_queues; i++) { 639 memcpy(&temp_ring[i], adapter->tx_ring[i], 640 sizeof(struct igc_ring)); 641 642 temp_ring[i].count = new_tx_count; 643 err = igc_setup_tx_resources(&temp_ring[i]); 644 if (err) { 645 while (i) { 646 i--; 647 igc_free_tx_resources(&temp_ring[i]); 648 } 649 goto err_setup; 650 } 651 } 652 653 for (i = 0; i < adapter->num_tx_queues; i++) { 654 igc_free_tx_resources(adapter->tx_ring[i]); 655 656 memcpy(adapter->tx_ring[i], &temp_ring[i], 657 sizeof(struct igc_ring)); 658 } 659 660 adapter->tx_ring_count = new_tx_count; 661 } 662 663 if (new_rx_count != adapter->rx_ring_count) { 664 for (i = 0; i < adapter->num_rx_queues; i++) { 665 memcpy(&temp_ring[i], adapter->rx_ring[i], 666 sizeof(struct igc_ring)); 667 668 temp_ring[i].count = new_rx_count; 669 err = igc_setup_rx_resources(&temp_ring[i]); 670 if (err) { 671 while (i) { 672 i--; 673 igc_free_rx_resources(&temp_ring[i]); 674 } 675 goto err_setup; 676 } 677 } 678 679 for (i = 0; i < adapter->num_rx_queues; i++) { 680 igc_free_rx_resources(adapter->rx_ring[i]); 681 682 memcpy(adapter->rx_ring[i], &temp_ring[i], 683 sizeof(struct igc_ring)); 684 } 685 686 adapter->rx_ring_count = new_rx_count; 687 } 688 err_setup: 689 igc_up(adapter); 690 vfree(temp_ring); 691 clear_reset: 692 clear_bit(__IGC_RESETTING, &adapter->state); 693 return err; 694 } 695 696 static void igc_ethtool_get_pauseparam(struct net_device *netdev, 697 struct ethtool_pauseparam *pause) 698 { 699 struct igc_adapter *adapter = netdev_priv(netdev); 700 struct igc_hw *hw = &adapter->hw; 701 702 pause->autoneg = 703 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE); 704 705 if (hw->fc.current_mode == igc_fc_rx_pause) { 706 pause->rx_pause = 1; 707 } else if (hw->fc.current_mode == igc_fc_tx_pause) { 708 pause->tx_pause = 1; 709 } else if (hw->fc.current_mode == igc_fc_full) { 710 pause->rx_pause = 1; 711 pause->tx_pause = 1; 712 } 713 } 714 715 static int igc_ethtool_set_pauseparam(struct net_device *netdev, 716 struct ethtool_pauseparam *pause) 717 { 718 struct igc_adapter *adapter = netdev_priv(netdev); 719 struct igc_hw *hw = &adapter->hw; 720 int retval = 0; 721 722 adapter->fc_autoneg = pause->autoneg; 723 724 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 725 usleep_range(1000, 2000); 726 727 if (adapter->fc_autoneg == AUTONEG_ENABLE) { 728 hw->fc.requested_mode = igc_fc_default; 729 if (netif_running(adapter->netdev)) { 730 igc_down(adapter); 731 igc_up(adapter); 732 } else { 733 igc_reset(adapter); 734 } 735 } else { 736 if (pause->rx_pause && pause->tx_pause) 737 hw->fc.requested_mode = igc_fc_full; 738 else if (pause->rx_pause && !pause->tx_pause) 739 hw->fc.requested_mode = igc_fc_rx_pause; 740 else if (!pause->rx_pause && pause->tx_pause) 741 hw->fc.requested_mode = igc_fc_tx_pause; 742 else if (!pause->rx_pause && !pause->tx_pause) 743 hw->fc.requested_mode = igc_fc_none; 744 745 hw->fc.current_mode = hw->fc.requested_mode; 746 747 retval = ((hw->phy.media_type == igc_media_type_copper) ? 748 igc_force_mac_fc(hw) : igc_setup_link(hw)); 749 } 750 751 clear_bit(__IGC_RESETTING, &adapter->state); 752 return retval; 753 } 754 755 static void igc_ethtool_get_strings(struct net_device *netdev, u32 stringset, 756 u8 *data) 757 { 758 struct igc_adapter *adapter = netdev_priv(netdev); 759 u8 *p = data; 760 int i; 761 762 switch (stringset) { 763 case ETH_SS_TEST: 764 memcpy(data, *igc_gstrings_test, 765 IGC_TEST_LEN * ETH_GSTRING_LEN); 766 break; 767 case ETH_SS_STATS: 768 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) { 769 memcpy(p, igc_gstrings_stats[i].stat_string, 770 ETH_GSTRING_LEN); 771 p += ETH_GSTRING_LEN; 772 } 773 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++) { 774 memcpy(p, igc_gstrings_net_stats[i].stat_string, 775 ETH_GSTRING_LEN); 776 p += ETH_GSTRING_LEN; 777 } 778 for (i = 0; i < adapter->num_tx_queues; i++) { 779 sprintf(p, "tx_queue_%u_packets", i); 780 p += ETH_GSTRING_LEN; 781 sprintf(p, "tx_queue_%u_bytes", i); 782 p += ETH_GSTRING_LEN; 783 sprintf(p, "tx_queue_%u_restart", i); 784 p += ETH_GSTRING_LEN; 785 } 786 for (i = 0; i < adapter->num_rx_queues; i++) { 787 sprintf(p, "rx_queue_%u_packets", i); 788 p += ETH_GSTRING_LEN; 789 sprintf(p, "rx_queue_%u_bytes", i); 790 p += ETH_GSTRING_LEN; 791 sprintf(p, "rx_queue_%u_drops", i); 792 p += ETH_GSTRING_LEN; 793 sprintf(p, "rx_queue_%u_csum_err", i); 794 p += ETH_GSTRING_LEN; 795 sprintf(p, "rx_queue_%u_alloc_failed", i); 796 p += ETH_GSTRING_LEN; 797 } 798 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */ 799 break; 800 case ETH_SS_PRIV_FLAGS: 801 memcpy(data, igc_priv_flags_strings, 802 IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN); 803 break; 804 } 805 } 806 807 static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset) 808 { 809 switch (sset) { 810 case ETH_SS_STATS: 811 return IGC_STATS_LEN; 812 case ETH_SS_TEST: 813 return IGC_TEST_LEN; 814 case ETH_SS_PRIV_FLAGS: 815 return IGC_PRIV_FLAGS_STR_LEN; 816 default: 817 return -ENOTSUPP; 818 } 819 } 820 821 static void igc_ethtool_get_stats(struct net_device *netdev, 822 struct ethtool_stats *stats, u64 *data) 823 { 824 struct igc_adapter *adapter = netdev_priv(netdev); 825 struct rtnl_link_stats64 *net_stats = &adapter->stats64; 826 unsigned int start; 827 struct igc_ring *ring; 828 int i, j; 829 char *p; 830 831 spin_lock(&adapter->stats64_lock); 832 igc_update_stats(adapter); 833 834 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) { 835 p = (char *)adapter + igc_gstrings_stats[i].stat_offset; 836 data[i] = (igc_gstrings_stats[i].sizeof_stat == 837 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 838 } 839 for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) { 840 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset; 841 data[i] = (igc_gstrings_net_stats[j].sizeof_stat == 842 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 843 } 844 for (j = 0; j < adapter->num_tx_queues; j++) { 845 u64 restart2; 846 847 ring = adapter->tx_ring[j]; 848 do { 849 start = u64_stats_fetch_begin_irq(&ring->tx_syncp); 850 data[i] = ring->tx_stats.packets; 851 data[i + 1] = ring->tx_stats.bytes; 852 data[i + 2] = ring->tx_stats.restart_queue; 853 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp, start)); 854 do { 855 start = u64_stats_fetch_begin_irq(&ring->tx_syncp2); 856 restart2 = ring->tx_stats.restart_queue2; 857 } while (u64_stats_fetch_retry_irq(&ring->tx_syncp2, start)); 858 data[i + 2] += restart2; 859 860 i += IGC_TX_QUEUE_STATS_LEN; 861 } 862 for (j = 0; j < adapter->num_rx_queues; j++) { 863 ring = adapter->rx_ring[j]; 864 do { 865 start = u64_stats_fetch_begin_irq(&ring->rx_syncp); 866 data[i] = ring->rx_stats.packets; 867 data[i + 1] = ring->rx_stats.bytes; 868 data[i + 2] = ring->rx_stats.drops; 869 data[i + 3] = ring->rx_stats.csum_err; 870 data[i + 4] = ring->rx_stats.alloc_failed; 871 } while (u64_stats_fetch_retry_irq(&ring->rx_syncp, start)); 872 i += IGC_RX_QUEUE_STATS_LEN; 873 } 874 spin_unlock(&adapter->stats64_lock); 875 } 876 877 static int igc_ethtool_get_coalesce(struct net_device *netdev, 878 struct ethtool_coalesce *ec) 879 { 880 struct igc_adapter *adapter = netdev_priv(netdev); 881 882 if (adapter->rx_itr_setting <= 3) 883 ec->rx_coalesce_usecs = adapter->rx_itr_setting; 884 else 885 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2; 886 887 if (!(adapter->flags & IGC_FLAG_QUEUE_PAIRS)) { 888 if (adapter->tx_itr_setting <= 3) 889 ec->tx_coalesce_usecs = adapter->tx_itr_setting; 890 else 891 ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2; 892 } 893 894 return 0; 895 } 896 897 static int igc_ethtool_set_coalesce(struct net_device *netdev, 898 struct ethtool_coalesce *ec) 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) && ec->tx_coalesce_usecs) 916 return -EINVAL; 917 918 /* If ITR is disabled, disable DMAC */ 919 if (ec->rx_coalesce_usecs == 0) { 920 if (adapter->flags & IGC_FLAG_DMAC) 921 adapter->flags &= ~IGC_FLAG_DMAC; 922 } 923 924 /* convert to rate of irq's per second */ 925 if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3) 926 adapter->rx_itr_setting = ec->rx_coalesce_usecs; 927 else 928 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2; 929 930 /* convert to rate of irq's per second */ 931 if (adapter->flags & IGC_FLAG_QUEUE_PAIRS) 932 adapter->tx_itr_setting = adapter->rx_itr_setting; 933 else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3) 934 adapter->tx_itr_setting = ec->tx_coalesce_usecs; 935 else 936 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2; 937 938 for (i = 0; i < adapter->num_q_vectors; i++) { 939 struct igc_q_vector *q_vector = adapter->q_vector[i]; 940 941 q_vector->tx.work_limit = adapter->tx_work_limit; 942 if (q_vector->rx.ring) 943 q_vector->itr_val = adapter->rx_itr_setting; 944 else 945 q_vector->itr_val = adapter->tx_itr_setting; 946 if (q_vector->itr_val && q_vector->itr_val <= 3) 947 q_vector->itr_val = IGC_START_ITR; 948 q_vector->set_itr = 1; 949 } 950 951 return 0; 952 } 953 954 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0) 955 static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter, 956 struct ethtool_rxnfc *cmd) 957 { 958 struct ethtool_rx_flow_spec *fsp = &cmd->fs; 959 struct igc_nfc_rule *rule = NULL; 960 961 cmd->data = IGC_MAX_RXNFC_RULES; 962 963 mutex_lock(&adapter->nfc_rule_lock); 964 965 rule = igc_get_nfc_rule(adapter, fsp->location); 966 if (!rule) 967 goto out; 968 969 fsp->flow_type = ETHER_FLOW; 970 fsp->ring_cookie = rule->action; 971 972 if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) { 973 fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype); 974 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK; 975 } 976 977 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) { 978 fsp->flow_type |= FLOW_EXT; 979 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci); 980 fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK); 981 } 982 983 if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) { 984 ether_addr_copy(fsp->h_u.ether_spec.h_dest, 985 rule->filter.dst_addr); 986 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest); 987 } 988 989 if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) { 990 ether_addr_copy(fsp->h_u.ether_spec.h_source, 991 rule->filter.src_addr); 992 eth_broadcast_addr(fsp->m_u.ether_spec.h_source); 993 } 994 995 mutex_unlock(&adapter->nfc_rule_lock); 996 return 0; 997 998 out: 999 mutex_unlock(&adapter->nfc_rule_lock); 1000 return -EINVAL; 1001 } 1002 1003 static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter, 1004 struct ethtool_rxnfc *cmd, 1005 u32 *rule_locs) 1006 { 1007 struct igc_nfc_rule *rule; 1008 int cnt = 0; 1009 1010 cmd->data = IGC_MAX_RXNFC_RULES; 1011 1012 mutex_lock(&adapter->nfc_rule_lock); 1013 1014 list_for_each_entry(rule, &adapter->nfc_rule_list, list) { 1015 if (cnt == cmd->rule_cnt) { 1016 mutex_unlock(&adapter->nfc_rule_lock); 1017 return -EMSGSIZE; 1018 } 1019 rule_locs[cnt] = rule->location; 1020 cnt++; 1021 } 1022 1023 mutex_unlock(&adapter->nfc_rule_lock); 1024 1025 cmd->rule_cnt = cnt; 1026 1027 return 0; 1028 } 1029 1030 static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter, 1031 struct ethtool_rxnfc *cmd) 1032 { 1033 cmd->data = 0; 1034 1035 /* Report default options for RSS on igc */ 1036 switch (cmd->flow_type) { 1037 case TCP_V4_FLOW: 1038 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1039 fallthrough; 1040 case UDP_V4_FLOW: 1041 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 1042 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1043 fallthrough; 1044 case SCTP_V4_FLOW: 1045 case AH_ESP_V4_FLOW: 1046 case AH_V4_FLOW: 1047 case ESP_V4_FLOW: 1048 case IPV4_FLOW: 1049 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1050 break; 1051 case TCP_V6_FLOW: 1052 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1053 fallthrough; 1054 case UDP_V6_FLOW: 1055 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 1056 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1057 fallthrough; 1058 case SCTP_V6_FLOW: 1059 case AH_ESP_V6_FLOW: 1060 case AH_V6_FLOW: 1061 case ESP_V6_FLOW: 1062 case IPV6_FLOW: 1063 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1064 break; 1065 default: 1066 return -EINVAL; 1067 } 1068 1069 return 0; 1070 } 1071 1072 static int igc_ethtool_get_rxnfc(struct net_device *dev, 1073 struct ethtool_rxnfc *cmd, u32 *rule_locs) 1074 { 1075 struct igc_adapter *adapter = netdev_priv(dev); 1076 1077 switch (cmd->cmd) { 1078 case ETHTOOL_GRXRINGS: 1079 cmd->data = adapter->num_rx_queues; 1080 return 0; 1081 case ETHTOOL_GRXCLSRLCNT: 1082 cmd->rule_cnt = adapter->nfc_rule_count; 1083 return 0; 1084 case ETHTOOL_GRXCLSRULE: 1085 return igc_ethtool_get_nfc_rule(adapter, cmd); 1086 case ETHTOOL_GRXCLSRLALL: 1087 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs); 1088 case ETHTOOL_GRXFH: 1089 return igc_ethtool_get_rss_hash_opts(adapter, cmd); 1090 default: 1091 return -EOPNOTSUPP; 1092 } 1093 } 1094 1095 #define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \ 1096 IGC_FLAG_RSS_FIELD_IPV6_UDP) 1097 static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter, 1098 struct ethtool_rxnfc *nfc) 1099 { 1100 u32 flags = adapter->flags; 1101 1102 /* RSS does not support anything other than hashing 1103 * to queues on src and dst IPs and ports 1104 */ 1105 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 1106 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 1107 return -EINVAL; 1108 1109 switch (nfc->flow_type) { 1110 case TCP_V4_FLOW: 1111 case TCP_V6_FLOW: 1112 if (!(nfc->data & RXH_IP_SRC) || 1113 !(nfc->data & RXH_IP_DST) || 1114 !(nfc->data & RXH_L4_B_0_1) || 1115 !(nfc->data & RXH_L4_B_2_3)) 1116 return -EINVAL; 1117 break; 1118 case UDP_V4_FLOW: 1119 if (!(nfc->data & RXH_IP_SRC) || 1120 !(nfc->data & RXH_IP_DST)) 1121 return -EINVAL; 1122 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1123 case 0: 1124 flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP; 1125 break; 1126 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1127 flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP; 1128 break; 1129 default: 1130 return -EINVAL; 1131 } 1132 break; 1133 case UDP_V6_FLOW: 1134 if (!(nfc->data & RXH_IP_SRC) || 1135 !(nfc->data & RXH_IP_DST)) 1136 return -EINVAL; 1137 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1138 case 0: 1139 flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP; 1140 break; 1141 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1142 flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP; 1143 break; 1144 default: 1145 return -EINVAL; 1146 } 1147 break; 1148 case AH_ESP_V4_FLOW: 1149 case AH_V4_FLOW: 1150 case ESP_V4_FLOW: 1151 case SCTP_V4_FLOW: 1152 case AH_ESP_V6_FLOW: 1153 case AH_V6_FLOW: 1154 case ESP_V6_FLOW: 1155 case SCTP_V6_FLOW: 1156 if (!(nfc->data & RXH_IP_SRC) || 1157 !(nfc->data & RXH_IP_DST) || 1158 (nfc->data & RXH_L4_B_0_1) || 1159 (nfc->data & RXH_L4_B_2_3)) 1160 return -EINVAL; 1161 break; 1162 default: 1163 return -EINVAL; 1164 } 1165 1166 /* if we changed something we need to update flags */ 1167 if (flags != adapter->flags) { 1168 struct igc_hw *hw = &adapter->hw; 1169 u32 mrqc = rd32(IGC_MRQC); 1170 1171 if ((flags & UDP_RSS_FLAGS) && 1172 !(adapter->flags & UDP_RSS_FLAGS)) 1173 netdev_err(adapter->netdev, 1174 "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n"); 1175 1176 adapter->flags = flags; 1177 1178 /* Perform hash on these packet types */ 1179 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 | 1180 IGC_MRQC_RSS_FIELD_IPV4_TCP | 1181 IGC_MRQC_RSS_FIELD_IPV6 | 1182 IGC_MRQC_RSS_FIELD_IPV6_TCP; 1183 1184 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP | 1185 IGC_MRQC_RSS_FIELD_IPV6_UDP); 1186 1187 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 1188 mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP; 1189 1190 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 1191 mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP; 1192 1193 wr32(IGC_MRQC, mrqc); 1194 } 1195 1196 return 0; 1197 } 1198 1199 static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule, 1200 const struct ethtool_rx_flow_spec *fsp) 1201 { 1202 INIT_LIST_HEAD(&rule->list); 1203 1204 rule->action = fsp->ring_cookie; 1205 rule->location = fsp->location; 1206 1207 if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) { 1208 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci); 1209 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI; 1210 } 1211 1212 if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) { 1213 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto); 1214 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE; 1215 } 1216 1217 /* Both source and destination address filters only support the full 1218 * mask. 1219 */ 1220 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) { 1221 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR; 1222 ether_addr_copy(rule->filter.src_addr, 1223 fsp->h_u.ether_spec.h_source); 1224 } 1225 1226 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) { 1227 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR; 1228 ether_addr_copy(rule->filter.dst_addr, 1229 fsp->h_u.ether_spec.h_dest); 1230 } 1231 } 1232 1233 /** 1234 * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid 1235 * @adapter: Pointer to adapter 1236 * @rule: Rule under evaluation 1237 * 1238 * The driver doesn't support rules with multiple matches so if more than 1239 * one bit in filter flags is set, @rule is considered invalid. 1240 * 1241 * Also, if there is already another rule with the same filter in a different 1242 * location, @rule is considered invalid. 1243 * 1244 * Context: Expects adapter->nfc_rule_lock to be held by caller. 1245 * 1246 * Return: 0 in case of success, negative errno code otherwise. 1247 */ 1248 static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter, 1249 struct igc_nfc_rule *rule) 1250 { 1251 struct net_device *dev = adapter->netdev; 1252 u8 flags = rule->filter.match_flags; 1253 struct igc_nfc_rule *tmp; 1254 1255 if (!flags) { 1256 netdev_dbg(dev, "Rule with no match\n"); 1257 return -EINVAL; 1258 } 1259 1260 if (flags & (flags - 1)) { 1261 netdev_dbg(dev, "Rule with multiple matches not supported\n"); 1262 return -EOPNOTSUPP; 1263 } 1264 1265 list_for_each_entry(tmp, &adapter->nfc_rule_list, list) { 1266 if (!memcmp(&rule->filter, &tmp->filter, 1267 sizeof(rule->filter)) && 1268 tmp->location != rule->location) { 1269 netdev_dbg(dev, "Rule already exists\n"); 1270 return -EEXIST; 1271 } 1272 } 1273 1274 return 0; 1275 } 1276 1277 static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter, 1278 struct ethtool_rxnfc *cmd) 1279 { 1280 struct net_device *netdev = adapter->netdev; 1281 struct ethtool_rx_flow_spec *fsp = 1282 (struct ethtool_rx_flow_spec *)&cmd->fs; 1283 struct igc_nfc_rule *rule, *old_rule; 1284 int err; 1285 1286 if (!(netdev->hw_features & NETIF_F_NTUPLE)) { 1287 netdev_dbg(netdev, "N-tuple filters disabled\n"); 1288 return -EOPNOTSUPP; 1289 } 1290 1291 if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) { 1292 netdev_dbg(netdev, "Only ethernet flow type is supported\n"); 1293 return -EOPNOTSUPP; 1294 } 1295 1296 if ((fsp->flow_type & FLOW_EXT) && 1297 fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK)) { 1298 netdev_dbg(netdev, "VLAN mask not supported\n"); 1299 return -EOPNOTSUPP; 1300 } 1301 1302 if (fsp->ring_cookie >= adapter->num_rx_queues) { 1303 netdev_dbg(netdev, "Invalid action\n"); 1304 return -EINVAL; 1305 } 1306 1307 if (fsp->location >= IGC_MAX_RXNFC_RULES) { 1308 netdev_dbg(netdev, "Invalid location\n"); 1309 return -EINVAL; 1310 } 1311 1312 rule = kzalloc(sizeof(*rule), GFP_KERNEL); 1313 if (!rule) 1314 return -ENOMEM; 1315 1316 igc_ethtool_init_nfc_rule(rule, fsp); 1317 1318 mutex_lock(&adapter->nfc_rule_lock); 1319 1320 err = igc_ethtool_check_nfc_rule(adapter, rule); 1321 if (err) 1322 goto err; 1323 1324 old_rule = igc_get_nfc_rule(adapter, fsp->location); 1325 if (old_rule) 1326 igc_del_nfc_rule(adapter, old_rule); 1327 1328 err = igc_add_nfc_rule(adapter, rule); 1329 if (err) 1330 goto err; 1331 1332 mutex_unlock(&adapter->nfc_rule_lock); 1333 return 0; 1334 1335 err: 1336 mutex_unlock(&adapter->nfc_rule_lock); 1337 kfree(rule); 1338 return err; 1339 } 1340 1341 static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter, 1342 struct ethtool_rxnfc *cmd) 1343 { 1344 struct ethtool_rx_flow_spec *fsp = 1345 (struct ethtool_rx_flow_spec *)&cmd->fs; 1346 struct igc_nfc_rule *rule; 1347 1348 mutex_lock(&adapter->nfc_rule_lock); 1349 1350 rule = igc_get_nfc_rule(adapter, fsp->location); 1351 if (!rule) { 1352 mutex_unlock(&adapter->nfc_rule_lock); 1353 return -EINVAL; 1354 } 1355 1356 igc_del_nfc_rule(adapter, rule); 1357 1358 mutex_unlock(&adapter->nfc_rule_lock); 1359 return 0; 1360 } 1361 1362 static int igc_ethtool_set_rxnfc(struct net_device *dev, 1363 struct ethtool_rxnfc *cmd) 1364 { 1365 struct igc_adapter *adapter = netdev_priv(dev); 1366 1367 switch (cmd->cmd) { 1368 case ETHTOOL_SRXFH: 1369 return igc_ethtool_set_rss_hash_opt(adapter, cmd); 1370 case ETHTOOL_SRXCLSRLINS: 1371 return igc_ethtool_add_nfc_rule(adapter, cmd); 1372 case ETHTOOL_SRXCLSRLDEL: 1373 return igc_ethtool_del_nfc_rule(adapter, cmd); 1374 default: 1375 return -EOPNOTSUPP; 1376 } 1377 } 1378 1379 void igc_write_rss_indir_tbl(struct igc_adapter *adapter) 1380 { 1381 struct igc_hw *hw = &adapter->hw; 1382 u32 reg = IGC_RETA(0); 1383 u32 shift = 0; 1384 int i = 0; 1385 1386 while (i < IGC_RETA_SIZE) { 1387 u32 val = 0; 1388 int j; 1389 1390 for (j = 3; j >= 0; j--) { 1391 val <<= 8; 1392 val |= adapter->rss_indir_tbl[i + j]; 1393 } 1394 1395 wr32(reg, val << shift); 1396 reg += 4; 1397 i += 4; 1398 } 1399 } 1400 1401 static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev) 1402 { 1403 return IGC_RETA_SIZE; 1404 } 1405 1406 static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 1407 u8 *hfunc) 1408 { 1409 struct igc_adapter *adapter = netdev_priv(netdev); 1410 int i; 1411 1412 if (hfunc) 1413 *hfunc = ETH_RSS_HASH_TOP; 1414 if (!indir) 1415 return 0; 1416 for (i = 0; i < IGC_RETA_SIZE; i++) 1417 indir[i] = adapter->rss_indir_tbl[i]; 1418 1419 return 0; 1420 } 1421 1422 static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir, 1423 const u8 *key, const u8 hfunc) 1424 { 1425 struct igc_adapter *adapter = netdev_priv(netdev); 1426 u32 num_queues; 1427 int i; 1428 1429 /* We do not allow change in unsupported parameters */ 1430 if (key || 1431 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) 1432 return -EOPNOTSUPP; 1433 if (!indir) 1434 return 0; 1435 1436 num_queues = adapter->rss_queues; 1437 1438 /* Verify user input. */ 1439 for (i = 0; i < IGC_RETA_SIZE; i++) 1440 if (indir[i] >= num_queues) 1441 return -EINVAL; 1442 1443 for (i = 0; i < IGC_RETA_SIZE; i++) 1444 adapter->rss_indir_tbl[i] = indir[i]; 1445 1446 igc_write_rss_indir_tbl(adapter); 1447 1448 return 0; 1449 } 1450 1451 static void igc_ethtool_get_channels(struct net_device *netdev, 1452 struct ethtool_channels *ch) 1453 { 1454 struct igc_adapter *adapter = netdev_priv(netdev); 1455 1456 /* Report maximum channels */ 1457 ch->max_combined = igc_get_max_rss_queues(adapter); 1458 1459 /* Report info for other vector */ 1460 if (adapter->flags & IGC_FLAG_HAS_MSIX) { 1461 ch->max_other = NON_Q_VECTORS; 1462 ch->other_count = NON_Q_VECTORS; 1463 } 1464 1465 ch->combined_count = adapter->rss_queues; 1466 } 1467 1468 static int igc_ethtool_set_channels(struct net_device *netdev, 1469 struct ethtool_channels *ch) 1470 { 1471 struct igc_adapter *adapter = netdev_priv(netdev); 1472 unsigned int count = ch->combined_count; 1473 unsigned int max_combined = 0; 1474 1475 /* Verify they are not requesting separate vectors */ 1476 if (!count || ch->rx_count || ch->tx_count) 1477 return -EINVAL; 1478 1479 /* Verify other_count is valid and has not been changed */ 1480 if (ch->other_count != NON_Q_VECTORS) 1481 return -EINVAL; 1482 1483 /* Verify the number of channels doesn't exceed hw limits */ 1484 max_combined = igc_get_max_rss_queues(adapter); 1485 if (count > max_combined) 1486 return -EINVAL; 1487 1488 if (count != adapter->rss_queues) { 1489 adapter->rss_queues = count; 1490 igc_set_flag_queue_pairs(adapter, max_combined); 1491 1492 /* Hardware has to reinitialize queues and interrupts to 1493 * match the new configuration. 1494 */ 1495 return igc_reinit_queues(adapter); 1496 } 1497 1498 return 0; 1499 } 1500 1501 static int igc_ethtool_get_ts_info(struct net_device *dev, 1502 struct ethtool_ts_info *info) 1503 { 1504 struct igc_adapter *adapter = netdev_priv(dev); 1505 1506 if (adapter->ptp_clock) 1507 info->phc_index = ptp_clock_index(adapter->ptp_clock); 1508 else 1509 info->phc_index = -1; 1510 1511 switch (adapter->hw.mac.type) { 1512 case igc_i225: 1513 info->so_timestamping = 1514 SOF_TIMESTAMPING_TX_SOFTWARE | 1515 SOF_TIMESTAMPING_RX_SOFTWARE | 1516 SOF_TIMESTAMPING_SOFTWARE | 1517 SOF_TIMESTAMPING_TX_HARDWARE | 1518 SOF_TIMESTAMPING_RX_HARDWARE | 1519 SOF_TIMESTAMPING_RAW_HARDWARE; 1520 1521 info->tx_types = 1522 BIT(HWTSTAMP_TX_OFF) | 1523 BIT(HWTSTAMP_TX_ON); 1524 1525 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE); 1526 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL); 1527 1528 return 0; 1529 default: 1530 return -EOPNOTSUPP; 1531 } 1532 } 1533 1534 static u32 igc_ethtool_get_priv_flags(struct net_device *netdev) 1535 { 1536 struct igc_adapter *adapter = netdev_priv(netdev); 1537 u32 priv_flags = 0; 1538 1539 if (adapter->flags & IGC_FLAG_RX_LEGACY) 1540 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX; 1541 1542 return priv_flags; 1543 } 1544 1545 static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags) 1546 { 1547 struct igc_adapter *adapter = netdev_priv(netdev); 1548 unsigned int flags = adapter->flags; 1549 1550 flags &= ~IGC_FLAG_RX_LEGACY; 1551 if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX) 1552 flags |= IGC_FLAG_RX_LEGACY; 1553 1554 if (flags != adapter->flags) { 1555 adapter->flags = flags; 1556 1557 /* reset interface to repopulate queues */ 1558 if (netif_running(netdev)) 1559 igc_reinit_locked(adapter); 1560 } 1561 1562 return 0; 1563 } 1564 1565 static int igc_ethtool_get_eee(struct net_device *netdev, 1566 struct ethtool_eee *edata) 1567 { 1568 struct igc_adapter *adapter = netdev_priv(netdev); 1569 struct igc_hw *hw = &adapter->hw; 1570 u32 eeer; 1571 1572 if (hw->dev_spec._base.eee_enable) 1573 edata->advertised = 1574 mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert); 1575 1576 *edata = adapter->eee; 1577 edata->supported = SUPPORTED_Autoneg; 1578 1579 eeer = rd32(IGC_EEER); 1580 1581 /* EEE status on negotiated link */ 1582 if (eeer & IGC_EEER_EEE_NEG) 1583 edata->eee_active = true; 1584 1585 if (eeer & IGC_EEER_TX_LPI_EN) 1586 edata->tx_lpi_enabled = true; 1587 1588 edata->eee_enabled = hw->dev_spec._base.eee_enable; 1589 1590 edata->advertised = SUPPORTED_Autoneg; 1591 edata->lp_advertised = SUPPORTED_Autoneg; 1592 1593 /* Report correct negotiated EEE status for devices that 1594 * wrongly report EEE at half-duplex 1595 */ 1596 if (adapter->link_duplex == HALF_DUPLEX) { 1597 edata->eee_enabled = false; 1598 edata->eee_active = false; 1599 edata->tx_lpi_enabled = false; 1600 edata->advertised &= ~edata->advertised; 1601 } 1602 1603 return 0; 1604 } 1605 1606 static int igc_ethtool_set_eee(struct net_device *netdev, 1607 struct ethtool_eee *edata) 1608 { 1609 struct igc_adapter *adapter = netdev_priv(netdev); 1610 struct igc_hw *hw = &adapter->hw; 1611 struct ethtool_eee eee_curr; 1612 s32 ret_val; 1613 1614 memset(&eee_curr, 0, sizeof(struct ethtool_eee)); 1615 1616 ret_val = igc_ethtool_get_eee(netdev, &eee_curr); 1617 if (ret_val) { 1618 netdev_err(netdev, 1619 "Problem setting EEE advertisement options\n"); 1620 return -EINVAL; 1621 } 1622 1623 if (eee_curr.eee_enabled) { 1624 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) { 1625 netdev_err(netdev, 1626 "Setting EEE tx-lpi is not supported\n"); 1627 return -EINVAL; 1628 } 1629 1630 /* Tx LPI timer is not implemented currently */ 1631 if (edata->tx_lpi_timer) { 1632 netdev_err(netdev, 1633 "Setting EEE Tx LPI timer is not supported\n"); 1634 return -EINVAL; 1635 } 1636 } else if (!edata->eee_enabled) { 1637 netdev_err(netdev, 1638 "Setting EEE options are not supported with EEE disabled\n"); 1639 return -EINVAL; 1640 } 1641 1642 adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised); 1643 if (hw->dev_spec._base.eee_enable != edata->eee_enabled) { 1644 hw->dev_spec._base.eee_enable = edata->eee_enabled; 1645 adapter->flags |= IGC_FLAG_EEE; 1646 1647 /* reset link */ 1648 if (netif_running(netdev)) 1649 igc_reinit_locked(adapter); 1650 else 1651 igc_reset(adapter); 1652 } 1653 1654 return 0; 1655 } 1656 1657 static int igc_ethtool_begin(struct net_device *netdev) 1658 { 1659 struct igc_adapter *adapter = netdev_priv(netdev); 1660 1661 pm_runtime_get_sync(&adapter->pdev->dev); 1662 return 0; 1663 } 1664 1665 static void igc_ethtool_complete(struct net_device *netdev) 1666 { 1667 struct igc_adapter *adapter = netdev_priv(netdev); 1668 1669 pm_runtime_put(&adapter->pdev->dev); 1670 } 1671 1672 static int igc_ethtool_get_link_ksettings(struct net_device *netdev, 1673 struct ethtool_link_ksettings *cmd) 1674 { 1675 struct igc_adapter *adapter = netdev_priv(netdev); 1676 struct igc_hw *hw = &adapter->hw; 1677 u32 status; 1678 u32 speed; 1679 1680 ethtool_link_ksettings_zero_link_mode(cmd, supported); 1681 ethtool_link_ksettings_zero_link_mode(cmd, advertising); 1682 1683 /* supported link modes */ 1684 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half); 1685 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full); 1686 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half); 1687 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full); 1688 ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full); 1689 ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full); 1690 1691 /* twisted pair */ 1692 cmd->base.port = PORT_TP; 1693 cmd->base.phy_address = hw->phy.addr; 1694 1695 /* advertising link modes */ 1696 if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF) 1697 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half); 1698 if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL) 1699 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full); 1700 if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF) 1701 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half); 1702 if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL) 1703 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full); 1704 if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL) 1705 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full); 1706 if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL) 1707 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full); 1708 1709 /* set autoneg settings */ 1710 if (hw->mac.autoneg == 1) { 1711 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 1712 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1713 Autoneg); 1714 } 1715 1716 /* Set pause flow control settings */ 1717 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); 1718 1719 switch (hw->fc.requested_mode) { 1720 case igc_fc_full: 1721 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1722 break; 1723 case igc_fc_rx_pause: 1724 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1725 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1726 Asym_Pause); 1727 break; 1728 case igc_fc_tx_pause: 1729 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1730 Asym_Pause); 1731 break; 1732 default: 1733 break; 1734 } 1735 1736 status = pm_runtime_suspended(&adapter->pdev->dev) ? 1737 0 : rd32(IGC_STATUS); 1738 1739 if (status & IGC_STATUS_LU) { 1740 if (status & IGC_STATUS_SPEED_1000) { 1741 /* For I225, STATUS will indicate 1G speed in both 1742 * 1 Gbps and 2.5 Gbps link modes. 1743 * An additional bit is used 1744 * to differentiate between 1 Gbps and 2.5 Gbps. 1745 */ 1746 if (hw->mac.type == igc_i225 && 1747 (status & IGC_STATUS_SPEED_2500)) { 1748 speed = SPEED_2500; 1749 } else { 1750 speed = SPEED_1000; 1751 } 1752 } else if (status & IGC_STATUS_SPEED_100) { 1753 speed = SPEED_100; 1754 } else { 1755 speed = SPEED_10; 1756 } 1757 if ((status & IGC_STATUS_FD) || 1758 hw->phy.media_type != igc_media_type_copper) 1759 cmd->base.duplex = DUPLEX_FULL; 1760 else 1761 cmd->base.duplex = DUPLEX_HALF; 1762 } else { 1763 speed = SPEED_UNKNOWN; 1764 cmd->base.duplex = DUPLEX_UNKNOWN; 1765 } 1766 cmd->base.speed = speed; 1767 if (hw->mac.autoneg) 1768 cmd->base.autoneg = AUTONEG_ENABLE; 1769 else 1770 cmd->base.autoneg = AUTONEG_DISABLE; 1771 1772 /* MDI-X => 2; MDI =>1; Invalid =>0 */ 1773 if (hw->phy.media_type == igc_media_type_copper) 1774 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X : 1775 ETH_TP_MDI; 1776 else 1777 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID; 1778 1779 if (hw->phy.mdix == AUTO_ALL_MODES) 1780 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; 1781 else 1782 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix; 1783 1784 return 0; 1785 } 1786 1787 static int 1788 igc_ethtool_set_link_ksettings(struct net_device *netdev, 1789 const struct ethtool_link_ksettings *cmd) 1790 { 1791 struct igc_adapter *adapter = netdev_priv(netdev); 1792 struct net_device *dev = adapter->netdev; 1793 struct igc_hw *hw = &adapter->hw; 1794 u32 advertising; 1795 1796 /* When adapter in resetting mode, autoneg/speed/duplex 1797 * cannot be changed 1798 */ 1799 if (igc_check_reset_block(hw)) { 1800 netdev_err(dev, "Cannot change link characteristics when reset is active\n"); 1801 return -EINVAL; 1802 } 1803 1804 /* MDI setting is only allowed when autoneg enabled because 1805 * some hardware doesn't allow MDI setting when speed or 1806 * duplex is forced. 1807 */ 1808 if (cmd->base.eth_tp_mdix_ctrl) { 1809 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO && 1810 cmd->base.autoneg != AUTONEG_ENABLE) { 1811 netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n"); 1812 return -EINVAL; 1813 } 1814 } 1815 1816 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 1817 usleep_range(1000, 2000); 1818 1819 ethtool_convert_link_mode_to_legacy_u32(&advertising, 1820 cmd->link_modes.advertising); 1821 /* Converting to legacy u32 drops ETHTOOL_LINK_MODE_2500baseT_Full_BIT. 1822 * We have to check this and convert it to ADVERTISE_2500_FULL 1823 * (aka ETHTOOL_LINK_MODE_2500baseX_Full_BIT) explicitly. 1824 */ 1825 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 2500baseT_Full)) 1826 advertising |= ADVERTISE_2500_FULL; 1827 1828 if (cmd->base.autoneg == AUTONEG_ENABLE) { 1829 hw->mac.autoneg = 1; 1830 hw->phy.autoneg_advertised = advertising; 1831 if (adapter->fc_autoneg) 1832 hw->fc.requested_mode = igc_fc_default; 1833 } else { 1834 netdev_info(dev, "Force mode currently not supported\n"); 1835 } 1836 1837 /* MDI-X => 2; MDI => 1; Auto => 3 */ 1838 if (cmd->base.eth_tp_mdix_ctrl) { 1839 /* fix up the value for auto (3 => 0) as zero is mapped 1840 * internally to auto 1841 */ 1842 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO) 1843 hw->phy.mdix = AUTO_ALL_MODES; 1844 else 1845 hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl; 1846 } 1847 1848 /* reset the link */ 1849 if (netif_running(adapter->netdev)) { 1850 igc_down(adapter); 1851 igc_up(adapter); 1852 } else { 1853 igc_reset(adapter); 1854 } 1855 1856 clear_bit(__IGC_RESETTING, &adapter->state); 1857 1858 return 0; 1859 } 1860 1861 static void igc_ethtool_diag_test(struct net_device *netdev, 1862 struct ethtool_test *eth_test, u64 *data) 1863 { 1864 struct igc_adapter *adapter = netdev_priv(netdev); 1865 bool if_running = netif_running(netdev); 1866 1867 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 1868 netdev_info(adapter->netdev, "Offline testing starting"); 1869 set_bit(__IGC_TESTING, &adapter->state); 1870 1871 /* Link test performed before hardware reset so autoneg doesn't 1872 * interfere with test result 1873 */ 1874 if (!igc_link_test(adapter, &data[TEST_LINK])) 1875 eth_test->flags |= ETH_TEST_FL_FAILED; 1876 1877 if (if_running) 1878 igc_close(netdev); 1879 else 1880 igc_reset(adapter); 1881 1882 netdev_info(adapter->netdev, "Register testing starting"); 1883 if (!igc_reg_test(adapter, &data[TEST_REG])) 1884 eth_test->flags |= ETH_TEST_FL_FAILED; 1885 1886 igc_reset(adapter); 1887 1888 netdev_info(adapter->netdev, "EEPROM testing starting"); 1889 if (!igc_eeprom_test(adapter, &data[TEST_EEP])) 1890 eth_test->flags |= ETH_TEST_FL_FAILED; 1891 1892 igc_reset(adapter); 1893 1894 /* loopback and interrupt tests 1895 * will be implemented in the future 1896 */ 1897 data[TEST_LOOP] = 0; 1898 data[TEST_IRQ] = 0; 1899 1900 clear_bit(__IGC_TESTING, &adapter->state); 1901 if (if_running) 1902 igc_open(netdev); 1903 } else { 1904 netdev_info(adapter->netdev, "Online testing starting"); 1905 1906 /* register, eeprom, intr and loopback tests not run online */ 1907 data[TEST_REG] = 0; 1908 data[TEST_EEP] = 0; 1909 data[TEST_IRQ] = 0; 1910 data[TEST_LOOP] = 0; 1911 1912 if (!igc_link_test(adapter, &data[TEST_LINK])) 1913 eth_test->flags |= ETH_TEST_FL_FAILED; 1914 } 1915 1916 msleep_interruptible(4 * 1000); 1917 } 1918 1919 static const struct ethtool_ops igc_ethtool_ops = { 1920 .supported_coalesce_params = ETHTOOL_COALESCE_USECS, 1921 .get_drvinfo = igc_ethtool_get_drvinfo, 1922 .get_regs_len = igc_ethtool_get_regs_len, 1923 .get_regs = igc_ethtool_get_regs, 1924 .get_wol = igc_ethtool_get_wol, 1925 .set_wol = igc_ethtool_set_wol, 1926 .get_msglevel = igc_ethtool_get_msglevel, 1927 .set_msglevel = igc_ethtool_set_msglevel, 1928 .nway_reset = igc_ethtool_nway_reset, 1929 .get_link = igc_ethtool_get_link, 1930 .get_eeprom_len = igc_ethtool_get_eeprom_len, 1931 .get_eeprom = igc_ethtool_get_eeprom, 1932 .set_eeprom = igc_ethtool_set_eeprom, 1933 .get_ringparam = igc_ethtool_get_ringparam, 1934 .set_ringparam = igc_ethtool_set_ringparam, 1935 .get_pauseparam = igc_ethtool_get_pauseparam, 1936 .set_pauseparam = igc_ethtool_set_pauseparam, 1937 .get_strings = igc_ethtool_get_strings, 1938 .get_sset_count = igc_ethtool_get_sset_count, 1939 .get_ethtool_stats = igc_ethtool_get_stats, 1940 .get_coalesce = igc_ethtool_get_coalesce, 1941 .set_coalesce = igc_ethtool_set_coalesce, 1942 .get_rxnfc = igc_ethtool_get_rxnfc, 1943 .set_rxnfc = igc_ethtool_set_rxnfc, 1944 .get_rxfh_indir_size = igc_ethtool_get_rxfh_indir_size, 1945 .get_rxfh = igc_ethtool_get_rxfh, 1946 .set_rxfh = igc_ethtool_set_rxfh, 1947 .get_ts_info = igc_ethtool_get_ts_info, 1948 .get_channels = igc_ethtool_get_channels, 1949 .set_channels = igc_ethtool_set_channels, 1950 .get_priv_flags = igc_ethtool_get_priv_flags, 1951 .set_priv_flags = igc_ethtool_set_priv_flags, 1952 .get_eee = igc_ethtool_get_eee, 1953 .set_eee = igc_ethtool_set_eee, 1954 .begin = igc_ethtool_begin, 1955 .complete = igc_ethtool_complete, 1956 .get_link_ksettings = igc_ethtool_get_link_ksettings, 1957 .set_link_ksettings = igc_ethtool_set_link_ksettings, 1958 .self_test = igc_ethtool_diag_test, 1959 }; 1960 1961 void igc_ethtool_set_ops(struct net_device *netdev) 1962 { 1963 netdev->ethtool_ops = &igc_ethtool_ops; 1964 } 1965