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 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 79 static 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 91 enum igc_diagnostics_results { 92 TEST_REG = 0, 93 TEST_EEP, 94 TEST_IRQ, 95 TEST_LOOP, 96 TEST_LINK 97 }; 98 99 static 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) 123 124 static 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) 130 131 static 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 } 161 162 static int igc_ethtool_get_regs_len(struct net_device *netdev) 163 { 164 return IGC_REGS_LEN * sizeof(u32); 165 } 166 167 static 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 } 348 349 static 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 } 380 381 static 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 } 409 410 static 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 } 416 417 static 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 } 423 424 static 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 } 432 433 static 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 } 449 450 static 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 } 456 457 static 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 } 503 504 static 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 } 570 571 static void 572 igc_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 } 584 585 static int 586 igc_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 } 695 err_setup: 696 igc_up(adapter); 697 vfree(temp_ring); 698 clear_reset: 699 clear_bit(__IGC_RESETTING, &adapter->state); 700 return err; 701 } 702 703 static 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 } 721 722 static 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 } 761 762 static 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, "%s", 777 igc_gstrings_stats[i].stat_string); 778 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++) 779 ethtool_sprintf(&p, "%s", 780 igc_gstrings_net_stats[i].stat_string); 781 for (i = 0; i < adapter->num_tx_queues; i++) { 782 ethtool_sprintf(&p, "tx_queue_%u_packets", i); 783 ethtool_sprintf(&p, "tx_queue_%u_bytes", i); 784 ethtool_sprintf(&p, "tx_queue_%u_restart", i); 785 } 786 for (i = 0; i < adapter->num_rx_queues; i++) { 787 ethtool_sprintf(&p, "rx_queue_%u_packets", i); 788 ethtool_sprintf(&p, "rx_queue_%u_bytes", i); 789 ethtool_sprintf(&p, "rx_queue_%u_drops", i); 790 ethtool_sprintf(&p, "rx_queue_%u_csum_err", i); 791 ethtool_sprintf(&p, "rx_queue_%u_alloc_failed", i); 792 } 793 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */ 794 break; 795 case ETH_SS_PRIV_FLAGS: 796 memcpy(data, igc_priv_flags_strings, 797 IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN); 798 break; 799 } 800 } 801 802 static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset) 803 { 804 switch (sset) { 805 case ETH_SS_STATS: 806 return IGC_STATS_LEN; 807 case ETH_SS_TEST: 808 return IGC_TEST_LEN; 809 case ETH_SS_PRIV_FLAGS: 810 return IGC_PRIV_FLAGS_STR_LEN; 811 default: 812 return -ENOTSUPP; 813 } 814 } 815 816 static void igc_ethtool_get_stats(struct net_device *netdev, 817 struct ethtool_stats *stats, u64 *data) 818 { 819 struct igc_adapter *adapter = netdev_priv(netdev); 820 struct rtnl_link_stats64 *net_stats = &adapter->stats64; 821 unsigned int start; 822 struct igc_ring *ring; 823 int i, j; 824 char *p; 825 826 spin_lock(&adapter->stats64_lock); 827 igc_update_stats(adapter); 828 829 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) { 830 p = (char *)adapter + igc_gstrings_stats[i].stat_offset; 831 data[i] = (igc_gstrings_stats[i].sizeof_stat == 832 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 833 } 834 for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) { 835 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset; 836 data[i] = (igc_gstrings_net_stats[j].sizeof_stat == 837 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 838 } 839 for (j = 0; j < adapter->num_tx_queues; j++) { 840 u64 restart2; 841 842 ring = adapter->tx_ring[j]; 843 do { 844 start = u64_stats_fetch_begin(&ring->tx_syncp); 845 data[i] = ring->tx_stats.packets; 846 data[i + 1] = ring->tx_stats.bytes; 847 data[i + 2] = ring->tx_stats.restart_queue; 848 } while (u64_stats_fetch_retry(&ring->tx_syncp, start)); 849 do { 850 start = u64_stats_fetch_begin(&ring->tx_syncp2); 851 restart2 = ring->tx_stats.restart_queue2; 852 } while (u64_stats_fetch_retry(&ring->tx_syncp2, start)); 853 data[i + 2] += restart2; 854 855 i += IGC_TX_QUEUE_STATS_LEN; 856 } 857 for (j = 0; j < adapter->num_rx_queues; j++) { 858 ring = adapter->rx_ring[j]; 859 do { 860 start = u64_stats_fetch_begin(&ring->rx_syncp); 861 data[i] = ring->rx_stats.packets; 862 data[i + 1] = ring->rx_stats.bytes; 863 data[i + 2] = ring->rx_stats.drops; 864 data[i + 3] = ring->rx_stats.csum_err; 865 data[i + 4] = ring->rx_stats.alloc_failed; 866 } while (u64_stats_fetch_retry(&ring->rx_syncp, start)); 867 i += IGC_RX_QUEUE_STATS_LEN; 868 } 869 spin_unlock(&adapter->stats64_lock); 870 } 871 872 static int igc_ethtool_get_previous_rx_coalesce(struct igc_adapter *adapter) 873 { 874 return (adapter->rx_itr_setting <= 3) ? 875 adapter->rx_itr_setting : adapter->rx_itr_setting >> 2; 876 } 877 878 static int igc_ethtool_get_previous_tx_coalesce(struct igc_adapter *adapter) 879 { 880 return (adapter->tx_itr_setting <= 3) ? 881 adapter->tx_itr_setting : adapter->tx_itr_setting >> 2; 882 } 883 884 static int igc_ethtool_get_coalesce(struct net_device *netdev, 885 struct ethtool_coalesce *ec, 886 struct kernel_ethtool_coalesce *kernel_coal, 887 struct netlink_ext_ack *extack) 888 { 889 struct igc_adapter *adapter = netdev_priv(netdev); 890 891 ec->rx_coalesce_usecs = igc_ethtool_get_previous_rx_coalesce(adapter); 892 ec->tx_coalesce_usecs = igc_ethtool_get_previous_tx_coalesce(adapter); 893 894 return 0; 895 } 896 897 static int igc_ethtool_set_coalesce(struct net_device *netdev, 898 struct ethtool_coalesce *ec, 899 struct kernel_ethtool_coalesce *kernel_coal, 900 struct netlink_ext_ack *extack) 901 { 902 struct igc_adapter *adapter = netdev_priv(netdev); 903 int i; 904 905 if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS || 906 (ec->rx_coalesce_usecs > 3 && 907 ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) || 908 ec->rx_coalesce_usecs == 2) 909 return -EINVAL; 910 911 if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS || 912 (ec->tx_coalesce_usecs > 3 && 913 ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) || 914 ec->tx_coalesce_usecs == 2) 915 return -EINVAL; 916 917 if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) && 918 ec->tx_coalesce_usecs != igc_ethtool_get_previous_tx_coalesce(adapter)) { 919 NL_SET_ERR_MSG_MOD(extack, 920 "Queue Pair mode enabled, both Rx and Tx coalescing controlled by rx-usecs"); 921 return -EINVAL; 922 } 923 924 /* If ITR is disabled, disable DMAC */ 925 if (ec->rx_coalesce_usecs == 0) { 926 if (adapter->flags & IGC_FLAG_DMAC) 927 adapter->flags &= ~IGC_FLAG_DMAC; 928 } 929 930 /* convert to rate of irq's per second */ 931 if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3) 932 adapter->rx_itr_setting = ec->rx_coalesce_usecs; 933 else 934 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2; 935 936 /* convert to rate of irq's per second */ 937 if (adapter->flags & IGC_FLAG_QUEUE_PAIRS) 938 adapter->tx_itr_setting = adapter->rx_itr_setting; 939 else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3) 940 adapter->tx_itr_setting = ec->tx_coalesce_usecs; 941 else 942 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2; 943 944 for (i = 0; i < adapter->num_q_vectors; i++) { 945 struct igc_q_vector *q_vector = adapter->q_vector[i]; 946 947 q_vector->tx.work_limit = adapter->tx_work_limit; 948 if (q_vector->rx.ring) 949 q_vector->itr_val = adapter->rx_itr_setting; 950 else 951 q_vector->itr_val = adapter->tx_itr_setting; 952 if (q_vector->itr_val && q_vector->itr_val <= 3) 953 q_vector->itr_val = IGC_START_ITR; 954 q_vector->set_itr = 1; 955 } 956 957 return 0; 958 } 959 960 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0) 961 static 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_TCI) { 984 fsp->flow_type |= FLOW_EXT; 985 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci); 986 fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK); 987 } 988 989 if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) { 990 ether_addr_copy(fsp->h_u.ether_spec.h_dest, 991 rule->filter.dst_addr); 992 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest); 993 } 994 995 if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) { 996 ether_addr_copy(fsp->h_u.ether_spec.h_source, 997 rule->filter.src_addr); 998 eth_broadcast_addr(fsp->m_u.ether_spec.h_source); 999 } 1000 1001 if (rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) { 1002 fsp->flow_type |= FLOW_EXT; 1003 memcpy(fsp->h_ext.data, rule->filter.user_data, sizeof(fsp->h_ext.data)); 1004 memcpy(fsp->m_ext.data, rule->filter.user_mask, sizeof(fsp->m_ext.data)); 1005 } 1006 1007 mutex_unlock(&adapter->nfc_rule_lock); 1008 return 0; 1009 1010 out: 1011 mutex_unlock(&adapter->nfc_rule_lock); 1012 return -EINVAL; 1013 } 1014 1015 static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter, 1016 struct ethtool_rxnfc *cmd, 1017 u32 *rule_locs) 1018 { 1019 struct igc_nfc_rule *rule; 1020 int cnt = 0; 1021 1022 cmd->data = IGC_MAX_RXNFC_RULES; 1023 1024 mutex_lock(&adapter->nfc_rule_lock); 1025 1026 list_for_each_entry(rule, &adapter->nfc_rule_list, list) { 1027 if (cnt == cmd->rule_cnt) { 1028 mutex_unlock(&adapter->nfc_rule_lock); 1029 return -EMSGSIZE; 1030 } 1031 rule_locs[cnt] = rule->location; 1032 cnt++; 1033 } 1034 1035 mutex_unlock(&adapter->nfc_rule_lock); 1036 1037 cmd->rule_cnt = cnt; 1038 1039 return 0; 1040 } 1041 1042 static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter, 1043 struct ethtool_rxnfc *cmd) 1044 { 1045 cmd->data = 0; 1046 1047 /* Report default options for RSS on igc */ 1048 switch (cmd->flow_type) { 1049 case TCP_V4_FLOW: 1050 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1051 fallthrough; 1052 case UDP_V4_FLOW: 1053 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 1054 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1055 fallthrough; 1056 case SCTP_V4_FLOW: 1057 case AH_ESP_V4_FLOW: 1058 case AH_V4_FLOW: 1059 case ESP_V4_FLOW: 1060 case IPV4_FLOW: 1061 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1062 break; 1063 case TCP_V6_FLOW: 1064 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1065 fallthrough; 1066 case UDP_V6_FLOW: 1067 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 1068 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1069 fallthrough; 1070 case SCTP_V6_FLOW: 1071 case AH_ESP_V6_FLOW: 1072 case AH_V6_FLOW: 1073 case ESP_V6_FLOW: 1074 case IPV6_FLOW: 1075 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1076 break; 1077 default: 1078 return -EINVAL; 1079 } 1080 1081 return 0; 1082 } 1083 1084 static int igc_ethtool_get_rxnfc(struct net_device *dev, 1085 struct ethtool_rxnfc *cmd, u32 *rule_locs) 1086 { 1087 struct igc_adapter *adapter = netdev_priv(dev); 1088 1089 switch (cmd->cmd) { 1090 case ETHTOOL_GRXRINGS: 1091 cmd->data = adapter->num_rx_queues; 1092 return 0; 1093 case ETHTOOL_GRXCLSRLCNT: 1094 cmd->rule_cnt = adapter->nfc_rule_count; 1095 return 0; 1096 case ETHTOOL_GRXCLSRULE: 1097 return igc_ethtool_get_nfc_rule(adapter, cmd); 1098 case ETHTOOL_GRXCLSRLALL: 1099 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs); 1100 case ETHTOOL_GRXFH: 1101 return igc_ethtool_get_rss_hash_opts(adapter, cmd); 1102 default: 1103 return -EOPNOTSUPP; 1104 } 1105 } 1106 1107 #define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \ 1108 IGC_FLAG_RSS_FIELD_IPV6_UDP) 1109 static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter, 1110 struct ethtool_rxnfc *nfc) 1111 { 1112 u32 flags = adapter->flags; 1113 1114 /* RSS does not support anything other than hashing 1115 * to queues on src and dst IPs and ports 1116 */ 1117 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 1118 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 1119 return -EINVAL; 1120 1121 switch (nfc->flow_type) { 1122 case TCP_V4_FLOW: 1123 case TCP_V6_FLOW: 1124 if (!(nfc->data & RXH_IP_SRC) || 1125 !(nfc->data & RXH_IP_DST) || 1126 !(nfc->data & RXH_L4_B_0_1) || 1127 !(nfc->data & RXH_L4_B_2_3)) 1128 return -EINVAL; 1129 break; 1130 case UDP_V4_FLOW: 1131 if (!(nfc->data & RXH_IP_SRC) || 1132 !(nfc->data & RXH_IP_DST)) 1133 return -EINVAL; 1134 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1135 case 0: 1136 flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP; 1137 break; 1138 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1139 flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP; 1140 break; 1141 default: 1142 return -EINVAL; 1143 } 1144 break; 1145 case UDP_V6_FLOW: 1146 if (!(nfc->data & RXH_IP_SRC) || 1147 !(nfc->data & RXH_IP_DST)) 1148 return -EINVAL; 1149 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1150 case 0: 1151 flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP; 1152 break; 1153 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1154 flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP; 1155 break; 1156 default: 1157 return -EINVAL; 1158 } 1159 break; 1160 case AH_ESP_V4_FLOW: 1161 case AH_V4_FLOW: 1162 case ESP_V4_FLOW: 1163 case SCTP_V4_FLOW: 1164 case AH_ESP_V6_FLOW: 1165 case AH_V6_FLOW: 1166 case ESP_V6_FLOW: 1167 case SCTP_V6_FLOW: 1168 if (!(nfc->data & RXH_IP_SRC) || 1169 !(nfc->data & RXH_IP_DST) || 1170 (nfc->data & RXH_L4_B_0_1) || 1171 (nfc->data & RXH_L4_B_2_3)) 1172 return -EINVAL; 1173 break; 1174 default: 1175 return -EINVAL; 1176 } 1177 1178 /* if we changed something we need to update flags */ 1179 if (flags != adapter->flags) { 1180 struct igc_hw *hw = &adapter->hw; 1181 u32 mrqc = rd32(IGC_MRQC); 1182 1183 if ((flags & UDP_RSS_FLAGS) && 1184 !(adapter->flags & UDP_RSS_FLAGS)) 1185 netdev_err(adapter->netdev, 1186 "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n"); 1187 1188 adapter->flags = flags; 1189 1190 /* Perform hash on these packet types */ 1191 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 | 1192 IGC_MRQC_RSS_FIELD_IPV4_TCP | 1193 IGC_MRQC_RSS_FIELD_IPV6 | 1194 IGC_MRQC_RSS_FIELD_IPV6_TCP; 1195 1196 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP | 1197 IGC_MRQC_RSS_FIELD_IPV6_UDP); 1198 1199 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 1200 mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP; 1201 1202 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 1203 mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP; 1204 1205 wr32(IGC_MRQC, mrqc); 1206 } 1207 1208 return 0; 1209 } 1210 1211 static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule, 1212 const struct ethtool_rx_flow_spec *fsp) 1213 { 1214 INIT_LIST_HEAD(&rule->list); 1215 1216 rule->action = fsp->ring_cookie; 1217 rule->location = fsp->location; 1218 1219 if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) { 1220 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci); 1221 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI; 1222 } 1223 1224 if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) { 1225 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto); 1226 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE; 1227 } 1228 1229 /* Both source and destination address filters only support the full 1230 * mask. 1231 */ 1232 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) { 1233 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR; 1234 ether_addr_copy(rule->filter.src_addr, 1235 fsp->h_u.ether_spec.h_source); 1236 } 1237 1238 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) { 1239 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR; 1240 ether_addr_copy(rule->filter.dst_addr, 1241 fsp->h_u.ether_spec.h_dest); 1242 } 1243 1244 /* VLAN etype matching */ 1245 if ((fsp->flow_type & FLOW_EXT) && fsp->h_ext.vlan_etype) { 1246 rule->filter.vlan_etype = fsp->h_ext.vlan_etype; 1247 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_ETYPE; 1248 } 1249 1250 /* Check for user defined data */ 1251 if ((fsp->flow_type & FLOW_EXT) && 1252 (fsp->h_ext.data[0] || fsp->h_ext.data[1])) { 1253 rule->filter.match_flags |= IGC_FILTER_FLAG_USER_DATA; 1254 memcpy(rule->filter.user_data, fsp->h_ext.data, sizeof(fsp->h_ext.data)); 1255 memcpy(rule->filter.user_mask, fsp->m_ext.data, sizeof(fsp->m_ext.data)); 1256 } 1257 1258 /* When multiple filter options or user data or vlan etype is set, use a 1259 * flex filter. 1260 */ 1261 if ((rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) || 1262 (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) || 1263 (rule->filter.match_flags & (rule->filter.match_flags - 1))) 1264 rule->flex = true; 1265 else 1266 rule->flex = false; 1267 } 1268 1269 /** 1270 * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid 1271 * @adapter: Pointer to adapter 1272 * @rule: Rule under evaluation 1273 * 1274 * The driver doesn't support rules with multiple matches so if more than 1275 * one bit in filter flags is set, @rule is considered invalid. 1276 * 1277 * Also, if there is already another rule with the same filter in a different 1278 * location, @rule is considered invalid. 1279 * 1280 * Context: Expects adapter->nfc_rule_lock to be held by caller. 1281 * 1282 * Return: 0 in case of success, negative errno code otherwise. 1283 */ 1284 static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter, 1285 struct igc_nfc_rule *rule) 1286 { 1287 struct net_device *dev = adapter->netdev; 1288 u8 flags = rule->filter.match_flags; 1289 struct igc_nfc_rule *tmp; 1290 1291 if (!flags) { 1292 netdev_dbg(dev, "Rule with no match\n"); 1293 return -EINVAL; 1294 } 1295 1296 list_for_each_entry(tmp, &adapter->nfc_rule_list, list) { 1297 if (!memcmp(&rule->filter, &tmp->filter, 1298 sizeof(rule->filter)) && 1299 tmp->location != rule->location) { 1300 netdev_dbg(dev, "Rule already exists\n"); 1301 return -EEXIST; 1302 } 1303 } 1304 1305 return 0; 1306 } 1307 1308 static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter, 1309 struct ethtool_rxnfc *cmd) 1310 { 1311 struct net_device *netdev = adapter->netdev; 1312 struct ethtool_rx_flow_spec *fsp = 1313 (struct ethtool_rx_flow_spec *)&cmd->fs; 1314 struct igc_nfc_rule *rule, *old_rule; 1315 int err; 1316 1317 if (!(netdev->hw_features & NETIF_F_NTUPLE)) { 1318 netdev_dbg(netdev, "N-tuple filters disabled\n"); 1319 return -EOPNOTSUPP; 1320 } 1321 1322 if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) { 1323 netdev_dbg(netdev, "Only ethernet flow type is supported\n"); 1324 return -EOPNOTSUPP; 1325 } 1326 1327 if (fsp->ring_cookie >= adapter->num_rx_queues) { 1328 netdev_dbg(netdev, "Invalid action\n"); 1329 return -EINVAL; 1330 } 1331 1332 if (fsp->location >= IGC_MAX_RXNFC_RULES) { 1333 netdev_dbg(netdev, "Invalid location\n"); 1334 return -EINVAL; 1335 } 1336 1337 rule = kzalloc(sizeof(*rule), GFP_KERNEL); 1338 if (!rule) 1339 return -ENOMEM; 1340 1341 igc_ethtool_init_nfc_rule(rule, fsp); 1342 1343 mutex_lock(&adapter->nfc_rule_lock); 1344 1345 err = igc_ethtool_check_nfc_rule(adapter, rule); 1346 if (err) 1347 goto err; 1348 1349 old_rule = igc_get_nfc_rule(adapter, fsp->location); 1350 if (old_rule) 1351 igc_del_nfc_rule(adapter, old_rule); 1352 1353 err = igc_add_nfc_rule(adapter, rule); 1354 if (err) 1355 goto err; 1356 1357 mutex_unlock(&adapter->nfc_rule_lock); 1358 return 0; 1359 1360 err: 1361 mutex_unlock(&adapter->nfc_rule_lock); 1362 kfree(rule); 1363 return err; 1364 } 1365 1366 static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter, 1367 struct ethtool_rxnfc *cmd) 1368 { 1369 struct ethtool_rx_flow_spec *fsp = 1370 (struct ethtool_rx_flow_spec *)&cmd->fs; 1371 struct igc_nfc_rule *rule; 1372 1373 mutex_lock(&adapter->nfc_rule_lock); 1374 1375 rule = igc_get_nfc_rule(adapter, fsp->location); 1376 if (!rule) { 1377 mutex_unlock(&adapter->nfc_rule_lock); 1378 return -EINVAL; 1379 } 1380 1381 igc_del_nfc_rule(adapter, rule); 1382 1383 mutex_unlock(&adapter->nfc_rule_lock); 1384 return 0; 1385 } 1386 1387 static int igc_ethtool_set_rxnfc(struct net_device *dev, 1388 struct ethtool_rxnfc *cmd) 1389 { 1390 struct igc_adapter *adapter = netdev_priv(dev); 1391 1392 switch (cmd->cmd) { 1393 case ETHTOOL_SRXFH: 1394 return igc_ethtool_set_rss_hash_opt(adapter, cmd); 1395 case ETHTOOL_SRXCLSRLINS: 1396 return igc_ethtool_add_nfc_rule(adapter, cmd); 1397 case ETHTOOL_SRXCLSRLDEL: 1398 return igc_ethtool_del_nfc_rule(adapter, cmd); 1399 default: 1400 return -EOPNOTSUPP; 1401 } 1402 } 1403 1404 void igc_write_rss_indir_tbl(struct igc_adapter *adapter) 1405 { 1406 struct igc_hw *hw = &adapter->hw; 1407 u32 reg = IGC_RETA(0); 1408 u32 shift = 0; 1409 int i = 0; 1410 1411 while (i < IGC_RETA_SIZE) { 1412 u32 val = 0; 1413 int j; 1414 1415 for (j = 3; j >= 0; j--) { 1416 val <<= 8; 1417 val |= adapter->rss_indir_tbl[i + j]; 1418 } 1419 1420 wr32(reg, val << shift); 1421 reg += 4; 1422 i += 4; 1423 } 1424 } 1425 1426 static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev) 1427 { 1428 return IGC_RETA_SIZE; 1429 } 1430 1431 static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 1432 u8 *hfunc) 1433 { 1434 struct igc_adapter *adapter = netdev_priv(netdev); 1435 int i; 1436 1437 if (hfunc) 1438 *hfunc = ETH_RSS_HASH_TOP; 1439 if (!indir) 1440 return 0; 1441 for (i = 0; i < IGC_RETA_SIZE; i++) 1442 indir[i] = adapter->rss_indir_tbl[i]; 1443 1444 return 0; 1445 } 1446 1447 static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir, 1448 const u8 *key, const u8 hfunc) 1449 { 1450 struct igc_adapter *adapter = netdev_priv(netdev); 1451 u32 num_queues; 1452 int i; 1453 1454 /* We do not allow change in unsupported parameters */ 1455 if (key || 1456 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) 1457 return -EOPNOTSUPP; 1458 if (!indir) 1459 return 0; 1460 1461 num_queues = adapter->rss_queues; 1462 1463 /* Verify user input. */ 1464 for (i = 0; i < IGC_RETA_SIZE; i++) 1465 if (indir[i] >= num_queues) 1466 return -EINVAL; 1467 1468 for (i = 0; i < IGC_RETA_SIZE; i++) 1469 adapter->rss_indir_tbl[i] = indir[i]; 1470 1471 igc_write_rss_indir_tbl(adapter); 1472 1473 return 0; 1474 } 1475 1476 static void igc_ethtool_get_channels(struct net_device *netdev, 1477 struct ethtool_channels *ch) 1478 { 1479 struct igc_adapter *adapter = netdev_priv(netdev); 1480 1481 /* Report maximum channels */ 1482 ch->max_combined = igc_get_max_rss_queues(adapter); 1483 1484 /* Report info for other vector */ 1485 if (adapter->flags & IGC_FLAG_HAS_MSIX) { 1486 ch->max_other = NON_Q_VECTORS; 1487 ch->other_count = NON_Q_VECTORS; 1488 } 1489 1490 ch->combined_count = adapter->rss_queues; 1491 } 1492 1493 static int igc_ethtool_set_channels(struct net_device *netdev, 1494 struct ethtool_channels *ch) 1495 { 1496 struct igc_adapter *adapter = netdev_priv(netdev); 1497 unsigned int count = ch->combined_count; 1498 unsigned int max_combined = 0; 1499 1500 /* Verify they are not requesting separate vectors */ 1501 if (!count || ch->rx_count || ch->tx_count) 1502 return -EINVAL; 1503 1504 /* Verify other_count is valid and has not been changed */ 1505 if (ch->other_count != NON_Q_VECTORS) 1506 return -EINVAL; 1507 1508 /* Verify the number of channels doesn't exceed hw limits */ 1509 max_combined = igc_get_max_rss_queues(adapter); 1510 if (count > max_combined) 1511 return -EINVAL; 1512 1513 if (count != adapter->rss_queues) { 1514 adapter->rss_queues = count; 1515 igc_set_flag_queue_pairs(adapter, max_combined); 1516 1517 /* Hardware has to reinitialize queues and interrupts to 1518 * match the new configuration. 1519 */ 1520 return igc_reinit_queues(adapter); 1521 } 1522 1523 return 0; 1524 } 1525 1526 static int igc_ethtool_get_ts_info(struct net_device *dev, 1527 struct ethtool_ts_info *info) 1528 { 1529 struct igc_adapter *adapter = netdev_priv(dev); 1530 1531 if (adapter->ptp_clock) 1532 info->phc_index = ptp_clock_index(adapter->ptp_clock); 1533 else 1534 info->phc_index = -1; 1535 1536 switch (adapter->hw.mac.type) { 1537 case igc_i225: 1538 info->so_timestamping = 1539 SOF_TIMESTAMPING_TX_SOFTWARE | 1540 SOF_TIMESTAMPING_RX_SOFTWARE | 1541 SOF_TIMESTAMPING_SOFTWARE | 1542 SOF_TIMESTAMPING_TX_HARDWARE | 1543 SOF_TIMESTAMPING_RX_HARDWARE | 1544 SOF_TIMESTAMPING_RAW_HARDWARE; 1545 1546 info->tx_types = 1547 BIT(HWTSTAMP_TX_OFF) | 1548 BIT(HWTSTAMP_TX_ON); 1549 1550 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE); 1551 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL); 1552 1553 return 0; 1554 default: 1555 return -EOPNOTSUPP; 1556 } 1557 } 1558 1559 static u32 igc_ethtool_get_priv_flags(struct net_device *netdev) 1560 { 1561 struct igc_adapter *adapter = netdev_priv(netdev); 1562 u32 priv_flags = 0; 1563 1564 if (adapter->flags & IGC_FLAG_RX_LEGACY) 1565 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX; 1566 1567 return priv_flags; 1568 } 1569 1570 static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags) 1571 { 1572 struct igc_adapter *adapter = netdev_priv(netdev); 1573 unsigned int flags = adapter->flags; 1574 1575 flags &= ~IGC_FLAG_RX_LEGACY; 1576 if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX) 1577 flags |= IGC_FLAG_RX_LEGACY; 1578 1579 if (flags != adapter->flags) { 1580 adapter->flags = flags; 1581 1582 /* reset interface to repopulate queues */ 1583 if (netif_running(netdev)) 1584 igc_reinit_locked(adapter); 1585 } 1586 1587 return 0; 1588 } 1589 1590 static int igc_ethtool_get_eee(struct net_device *netdev, 1591 struct ethtool_eee *edata) 1592 { 1593 struct igc_adapter *adapter = netdev_priv(netdev); 1594 struct igc_hw *hw = &adapter->hw; 1595 u32 eeer; 1596 1597 if (hw->dev_spec._base.eee_enable) 1598 edata->advertised = 1599 mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert); 1600 1601 *edata = adapter->eee; 1602 edata->supported = SUPPORTED_Autoneg; 1603 1604 eeer = rd32(IGC_EEER); 1605 1606 /* EEE status on negotiated link */ 1607 if (eeer & IGC_EEER_EEE_NEG) 1608 edata->eee_active = true; 1609 1610 if (eeer & IGC_EEER_TX_LPI_EN) 1611 edata->tx_lpi_enabled = true; 1612 1613 edata->eee_enabled = hw->dev_spec._base.eee_enable; 1614 1615 edata->advertised = SUPPORTED_Autoneg; 1616 edata->lp_advertised = SUPPORTED_Autoneg; 1617 1618 /* Report correct negotiated EEE status for devices that 1619 * wrongly report EEE at half-duplex 1620 */ 1621 if (adapter->link_duplex == HALF_DUPLEX) { 1622 edata->eee_enabled = false; 1623 edata->eee_active = false; 1624 edata->tx_lpi_enabled = false; 1625 edata->advertised &= ~edata->advertised; 1626 } 1627 1628 return 0; 1629 } 1630 1631 static int igc_ethtool_set_eee(struct net_device *netdev, 1632 struct ethtool_eee *edata) 1633 { 1634 struct igc_adapter *adapter = netdev_priv(netdev); 1635 struct igc_hw *hw = &adapter->hw; 1636 struct ethtool_eee eee_curr; 1637 s32 ret_val; 1638 1639 memset(&eee_curr, 0, sizeof(struct ethtool_eee)); 1640 1641 ret_val = igc_ethtool_get_eee(netdev, &eee_curr); 1642 if (ret_val) { 1643 netdev_err(netdev, 1644 "Problem setting EEE advertisement options\n"); 1645 return -EINVAL; 1646 } 1647 1648 if (eee_curr.eee_enabled) { 1649 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) { 1650 netdev_err(netdev, 1651 "Setting EEE tx-lpi is not supported\n"); 1652 return -EINVAL; 1653 } 1654 1655 /* Tx LPI timer is not implemented currently */ 1656 if (edata->tx_lpi_timer) { 1657 netdev_err(netdev, 1658 "Setting EEE Tx LPI timer is not supported\n"); 1659 return -EINVAL; 1660 } 1661 } else if (!edata->eee_enabled) { 1662 netdev_err(netdev, 1663 "Setting EEE options are not supported with EEE disabled\n"); 1664 return -EINVAL; 1665 } 1666 1667 adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised); 1668 if (hw->dev_spec._base.eee_enable != edata->eee_enabled) { 1669 hw->dev_spec._base.eee_enable = edata->eee_enabled; 1670 adapter->flags |= IGC_FLAG_EEE; 1671 1672 /* reset link */ 1673 if (netif_running(netdev)) 1674 igc_reinit_locked(adapter); 1675 else 1676 igc_reset(adapter); 1677 } 1678 1679 return 0; 1680 } 1681 1682 static int igc_ethtool_begin(struct net_device *netdev) 1683 { 1684 struct igc_adapter *adapter = netdev_priv(netdev); 1685 1686 pm_runtime_get_sync(&adapter->pdev->dev); 1687 return 0; 1688 } 1689 1690 static void igc_ethtool_complete(struct net_device *netdev) 1691 { 1692 struct igc_adapter *adapter = netdev_priv(netdev); 1693 1694 pm_runtime_put(&adapter->pdev->dev); 1695 } 1696 1697 static int igc_ethtool_get_link_ksettings(struct net_device *netdev, 1698 struct ethtool_link_ksettings *cmd) 1699 { 1700 struct igc_adapter *adapter = netdev_priv(netdev); 1701 struct igc_hw *hw = &adapter->hw; 1702 u32 status; 1703 u32 speed; 1704 1705 ethtool_link_ksettings_zero_link_mode(cmd, supported); 1706 ethtool_link_ksettings_zero_link_mode(cmd, advertising); 1707 1708 /* supported link modes */ 1709 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half); 1710 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full); 1711 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half); 1712 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full); 1713 ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full); 1714 ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full); 1715 1716 /* twisted pair */ 1717 cmd->base.port = PORT_TP; 1718 cmd->base.phy_address = hw->phy.addr; 1719 ethtool_link_ksettings_add_link_mode(cmd, supported, TP); 1720 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); 1721 1722 /* advertising link modes */ 1723 if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF) 1724 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half); 1725 if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL) 1726 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full); 1727 if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF) 1728 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half); 1729 if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL) 1730 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full); 1731 if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL) 1732 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full); 1733 if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL) 1734 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full); 1735 1736 /* set autoneg settings */ 1737 if (hw->mac.autoneg == 1) { 1738 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 1739 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1740 Autoneg); 1741 } 1742 1743 /* Set pause flow control settings */ 1744 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); 1745 1746 switch (hw->fc.requested_mode) { 1747 case igc_fc_full: 1748 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1749 break; 1750 case igc_fc_rx_pause: 1751 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1752 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1753 Asym_Pause); 1754 break; 1755 case igc_fc_tx_pause: 1756 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1757 Asym_Pause); 1758 break; 1759 default: 1760 break; 1761 } 1762 1763 status = pm_runtime_suspended(&adapter->pdev->dev) ? 1764 0 : rd32(IGC_STATUS); 1765 1766 if (status & IGC_STATUS_LU) { 1767 if (status & IGC_STATUS_SPEED_1000) { 1768 /* For I225, STATUS will indicate 1G speed in both 1769 * 1 Gbps and 2.5 Gbps link modes. 1770 * An additional bit is used 1771 * to differentiate between 1 Gbps and 2.5 Gbps. 1772 */ 1773 if (hw->mac.type == igc_i225 && 1774 (status & IGC_STATUS_SPEED_2500)) { 1775 speed = SPEED_2500; 1776 } else { 1777 speed = SPEED_1000; 1778 } 1779 } else if (status & IGC_STATUS_SPEED_100) { 1780 speed = SPEED_100; 1781 } else { 1782 speed = SPEED_10; 1783 } 1784 if ((status & IGC_STATUS_FD) || 1785 hw->phy.media_type != igc_media_type_copper) 1786 cmd->base.duplex = DUPLEX_FULL; 1787 else 1788 cmd->base.duplex = DUPLEX_HALF; 1789 } else { 1790 speed = SPEED_UNKNOWN; 1791 cmd->base.duplex = DUPLEX_UNKNOWN; 1792 } 1793 cmd->base.speed = speed; 1794 if (hw->mac.autoneg) 1795 cmd->base.autoneg = AUTONEG_ENABLE; 1796 else 1797 cmd->base.autoneg = AUTONEG_DISABLE; 1798 1799 /* MDI-X => 2; MDI =>1; Invalid =>0 */ 1800 if (hw->phy.media_type == igc_media_type_copper) 1801 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X : 1802 ETH_TP_MDI; 1803 else 1804 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID; 1805 1806 if (hw->phy.mdix == AUTO_ALL_MODES) 1807 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; 1808 else 1809 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix; 1810 1811 return 0; 1812 } 1813 1814 static int 1815 igc_ethtool_set_link_ksettings(struct net_device *netdev, 1816 const struct ethtool_link_ksettings *cmd) 1817 { 1818 struct igc_adapter *adapter = netdev_priv(netdev); 1819 struct net_device *dev = adapter->netdev; 1820 struct igc_hw *hw = &adapter->hw; 1821 u16 advertised = 0; 1822 1823 /* When adapter in resetting mode, autoneg/speed/duplex 1824 * cannot be changed 1825 */ 1826 if (igc_check_reset_block(hw)) { 1827 netdev_err(dev, "Cannot change link characteristics when reset is active\n"); 1828 return -EINVAL; 1829 } 1830 1831 /* MDI setting is only allowed when autoneg enabled because 1832 * some hardware doesn't allow MDI setting when speed or 1833 * duplex is forced. 1834 */ 1835 if (cmd->base.eth_tp_mdix_ctrl) { 1836 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO && 1837 cmd->base.autoneg != AUTONEG_ENABLE) { 1838 netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n"); 1839 return -EINVAL; 1840 } 1841 } 1842 1843 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 1844 usleep_range(1000, 2000); 1845 1846 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1847 2500baseT_Full)) 1848 advertised |= ADVERTISE_2500_FULL; 1849 1850 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1851 1000baseT_Full)) 1852 advertised |= ADVERTISE_1000_FULL; 1853 1854 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1855 100baseT_Full)) 1856 advertised |= ADVERTISE_100_FULL; 1857 1858 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1859 100baseT_Half)) 1860 advertised |= ADVERTISE_100_HALF; 1861 1862 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1863 10baseT_Full)) 1864 advertised |= ADVERTISE_10_FULL; 1865 1866 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1867 10baseT_Half)) 1868 advertised |= ADVERTISE_10_HALF; 1869 1870 if (cmd->base.autoneg == AUTONEG_ENABLE) { 1871 hw->mac.autoneg = 1; 1872 hw->phy.autoneg_advertised = advertised; 1873 if (adapter->fc_autoneg) 1874 hw->fc.requested_mode = igc_fc_default; 1875 } else { 1876 netdev_info(dev, "Force mode currently not supported\n"); 1877 } 1878 1879 /* MDI-X => 2; MDI => 1; Auto => 3 */ 1880 if (cmd->base.eth_tp_mdix_ctrl) { 1881 /* fix up the value for auto (3 => 0) as zero is mapped 1882 * internally to auto 1883 */ 1884 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO) 1885 hw->phy.mdix = AUTO_ALL_MODES; 1886 else 1887 hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl; 1888 } 1889 1890 /* reset the link */ 1891 if (netif_running(adapter->netdev)) { 1892 igc_down(adapter); 1893 igc_up(adapter); 1894 } else { 1895 igc_reset(adapter); 1896 } 1897 1898 clear_bit(__IGC_RESETTING, &adapter->state); 1899 1900 return 0; 1901 } 1902 1903 static void igc_ethtool_diag_test(struct net_device *netdev, 1904 struct ethtool_test *eth_test, u64 *data) 1905 { 1906 struct igc_adapter *adapter = netdev_priv(netdev); 1907 bool if_running = netif_running(netdev); 1908 1909 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 1910 netdev_info(adapter->netdev, "Offline testing starting"); 1911 set_bit(__IGC_TESTING, &adapter->state); 1912 1913 /* Link test performed before hardware reset so autoneg doesn't 1914 * interfere with test result 1915 */ 1916 if (!igc_link_test(adapter, &data[TEST_LINK])) 1917 eth_test->flags |= ETH_TEST_FL_FAILED; 1918 1919 if (if_running) 1920 igc_close(netdev); 1921 else 1922 igc_reset(adapter); 1923 1924 netdev_info(adapter->netdev, "Register testing starting"); 1925 if (!igc_reg_test(adapter, &data[TEST_REG])) 1926 eth_test->flags |= ETH_TEST_FL_FAILED; 1927 1928 igc_reset(adapter); 1929 1930 netdev_info(adapter->netdev, "EEPROM testing starting"); 1931 if (!igc_eeprom_test(adapter, &data[TEST_EEP])) 1932 eth_test->flags |= ETH_TEST_FL_FAILED; 1933 1934 igc_reset(adapter); 1935 1936 /* loopback and interrupt tests 1937 * will be implemented in the future 1938 */ 1939 data[TEST_LOOP] = 0; 1940 data[TEST_IRQ] = 0; 1941 1942 clear_bit(__IGC_TESTING, &adapter->state); 1943 if (if_running) 1944 igc_open(netdev); 1945 } else { 1946 netdev_info(adapter->netdev, "Online testing starting"); 1947 1948 /* register, eeprom, intr and loopback tests not run online */ 1949 data[TEST_REG] = 0; 1950 data[TEST_EEP] = 0; 1951 data[TEST_IRQ] = 0; 1952 data[TEST_LOOP] = 0; 1953 1954 if (!igc_link_test(adapter, &data[TEST_LINK])) 1955 eth_test->flags |= ETH_TEST_FL_FAILED; 1956 } 1957 1958 msleep_interruptible(4 * 1000); 1959 } 1960 1961 static const struct ethtool_ops igc_ethtool_ops = { 1962 .supported_coalesce_params = ETHTOOL_COALESCE_USECS, 1963 .get_drvinfo = igc_ethtool_get_drvinfo, 1964 .get_regs_len = igc_ethtool_get_regs_len, 1965 .get_regs = igc_ethtool_get_regs, 1966 .get_wol = igc_ethtool_get_wol, 1967 .set_wol = igc_ethtool_set_wol, 1968 .get_msglevel = igc_ethtool_get_msglevel, 1969 .set_msglevel = igc_ethtool_set_msglevel, 1970 .nway_reset = igc_ethtool_nway_reset, 1971 .get_link = igc_ethtool_get_link, 1972 .get_eeprom_len = igc_ethtool_get_eeprom_len, 1973 .get_eeprom = igc_ethtool_get_eeprom, 1974 .set_eeprom = igc_ethtool_set_eeprom, 1975 .get_ringparam = igc_ethtool_get_ringparam, 1976 .set_ringparam = igc_ethtool_set_ringparam, 1977 .get_pauseparam = igc_ethtool_get_pauseparam, 1978 .set_pauseparam = igc_ethtool_set_pauseparam, 1979 .get_strings = igc_ethtool_get_strings, 1980 .get_sset_count = igc_ethtool_get_sset_count, 1981 .get_ethtool_stats = igc_ethtool_get_stats, 1982 .get_coalesce = igc_ethtool_get_coalesce, 1983 .set_coalesce = igc_ethtool_set_coalesce, 1984 .get_rxnfc = igc_ethtool_get_rxnfc, 1985 .set_rxnfc = igc_ethtool_set_rxnfc, 1986 .get_rxfh_indir_size = igc_ethtool_get_rxfh_indir_size, 1987 .get_rxfh = igc_ethtool_get_rxfh, 1988 .set_rxfh = igc_ethtool_set_rxfh, 1989 .get_ts_info = igc_ethtool_get_ts_info, 1990 .get_channels = igc_ethtool_get_channels, 1991 .set_channels = igc_ethtool_set_channels, 1992 .get_priv_flags = igc_ethtool_get_priv_flags, 1993 .set_priv_flags = igc_ethtool_set_priv_flags, 1994 .get_eee = igc_ethtool_get_eee, 1995 .set_eee = igc_ethtool_set_eee, 1996 .begin = igc_ethtool_begin, 1997 .complete = igc_ethtool_complete, 1998 .get_link_ksettings = igc_ethtool_get_link_ksettings, 1999 .set_link_ksettings = igc_ethtool_set_link_ksettings, 2000 .self_test = igc_ethtool_diag_test, 2001 }; 2002 2003 void igc_ethtool_set_ops(struct net_device *netdev) 2004 { 2005 netdev->ethtool_ops = &igc_ethtool_ops; 2006 } 2007