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 cpu_to_le16s(&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 571 igc_ethtool_get_ringparam(struct net_device *netdev, 572 struct ethtool_ringparam *ring, 573 struct kernel_ethtool_ringparam *kernel_ering, 574 struct netlink_ext_ack *extack) 575 { 576 struct igc_adapter *adapter = netdev_priv(netdev); 577 578 ring->rx_max_pending = IGC_MAX_RXD; 579 ring->tx_max_pending = IGC_MAX_TXD; 580 ring->rx_pending = adapter->rx_ring_count; 581 ring->tx_pending = adapter->tx_ring_count; 582 } 583 584 static int 585 igc_ethtool_set_ringparam(struct net_device *netdev, 586 struct ethtool_ringparam *ring, 587 struct kernel_ethtool_ringparam *kernel_ering, 588 struct netlink_ext_ack *extack) 589 { 590 struct igc_adapter *adapter = netdev_priv(netdev); 591 struct igc_ring *temp_ring; 592 u16 new_rx_count, new_tx_count; 593 int i, err = 0; 594 595 if (ring->rx_mini_pending || ring->rx_jumbo_pending) 596 return -EINVAL; 597 598 new_rx_count = min_t(u32, ring->rx_pending, IGC_MAX_RXD); 599 new_rx_count = max_t(u16, new_rx_count, IGC_MIN_RXD); 600 new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE); 601 602 new_tx_count = min_t(u32, ring->tx_pending, IGC_MAX_TXD); 603 new_tx_count = max_t(u16, new_tx_count, IGC_MIN_TXD); 604 new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE); 605 606 if (new_tx_count == adapter->tx_ring_count && 607 new_rx_count == adapter->rx_ring_count) { 608 /* nothing to do */ 609 return 0; 610 } 611 612 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 613 usleep_range(1000, 2000); 614 615 if (!netif_running(adapter->netdev)) { 616 for (i = 0; i < adapter->num_tx_queues; i++) 617 adapter->tx_ring[i]->count = new_tx_count; 618 for (i = 0; i < adapter->num_rx_queues; i++) 619 adapter->rx_ring[i]->count = new_rx_count; 620 adapter->tx_ring_count = new_tx_count; 621 adapter->rx_ring_count = new_rx_count; 622 goto clear_reset; 623 } 624 625 if (adapter->num_tx_queues > adapter->num_rx_queues) 626 temp_ring = vmalloc(array_size(sizeof(struct igc_ring), 627 adapter->num_tx_queues)); 628 else 629 temp_ring = vmalloc(array_size(sizeof(struct igc_ring), 630 adapter->num_rx_queues)); 631 632 if (!temp_ring) { 633 err = -ENOMEM; 634 goto clear_reset; 635 } 636 637 igc_down(adapter); 638 639 /* We can't just free everything and then setup again, 640 * because the ISRs in MSI-X mode get passed pointers 641 * to the Tx and Rx ring structs. 642 */ 643 if (new_tx_count != adapter->tx_ring_count) { 644 for (i = 0; i < adapter->num_tx_queues; i++) { 645 memcpy(&temp_ring[i], adapter->tx_ring[i], 646 sizeof(struct igc_ring)); 647 648 temp_ring[i].count = new_tx_count; 649 err = igc_setup_tx_resources(&temp_ring[i]); 650 if (err) { 651 while (i) { 652 i--; 653 igc_free_tx_resources(&temp_ring[i]); 654 } 655 goto err_setup; 656 } 657 } 658 659 for (i = 0; i < adapter->num_tx_queues; i++) { 660 igc_free_tx_resources(adapter->tx_ring[i]); 661 662 memcpy(adapter->tx_ring[i], &temp_ring[i], 663 sizeof(struct igc_ring)); 664 } 665 666 adapter->tx_ring_count = new_tx_count; 667 } 668 669 if (new_rx_count != adapter->rx_ring_count) { 670 for (i = 0; i < adapter->num_rx_queues; i++) { 671 memcpy(&temp_ring[i], adapter->rx_ring[i], 672 sizeof(struct igc_ring)); 673 674 temp_ring[i].count = new_rx_count; 675 err = igc_setup_rx_resources(&temp_ring[i]); 676 if (err) { 677 while (i) { 678 i--; 679 igc_free_rx_resources(&temp_ring[i]); 680 } 681 goto err_setup; 682 } 683 } 684 685 for (i = 0; i < adapter->num_rx_queues; i++) { 686 igc_free_rx_resources(adapter->rx_ring[i]); 687 688 memcpy(adapter->rx_ring[i], &temp_ring[i], 689 sizeof(struct igc_ring)); 690 } 691 692 adapter->rx_ring_count = new_rx_count; 693 } 694 err_setup: 695 igc_up(adapter); 696 vfree(temp_ring); 697 clear_reset: 698 clear_bit(__IGC_RESETTING, &adapter->state); 699 return err; 700 } 701 702 static void igc_ethtool_get_pauseparam(struct net_device *netdev, 703 struct ethtool_pauseparam *pause) 704 { 705 struct igc_adapter *adapter = netdev_priv(netdev); 706 struct igc_hw *hw = &adapter->hw; 707 708 pause->autoneg = 709 (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE); 710 711 if (hw->fc.current_mode == igc_fc_rx_pause) { 712 pause->rx_pause = 1; 713 } else if (hw->fc.current_mode == igc_fc_tx_pause) { 714 pause->tx_pause = 1; 715 } else if (hw->fc.current_mode == igc_fc_full) { 716 pause->rx_pause = 1; 717 pause->tx_pause = 1; 718 } 719 } 720 721 static int igc_ethtool_set_pauseparam(struct net_device *netdev, 722 struct ethtool_pauseparam *pause) 723 { 724 struct igc_adapter *adapter = netdev_priv(netdev); 725 struct igc_hw *hw = &adapter->hw; 726 int retval = 0; 727 728 adapter->fc_autoneg = pause->autoneg; 729 730 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 731 usleep_range(1000, 2000); 732 733 if (adapter->fc_autoneg == AUTONEG_ENABLE) { 734 hw->fc.requested_mode = igc_fc_default; 735 if (netif_running(adapter->netdev)) { 736 igc_down(adapter); 737 igc_up(adapter); 738 } else { 739 igc_reset(adapter); 740 } 741 } else { 742 if (pause->rx_pause && pause->tx_pause) 743 hw->fc.requested_mode = igc_fc_full; 744 else if (pause->rx_pause && !pause->tx_pause) 745 hw->fc.requested_mode = igc_fc_rx_pause; 746 else if (!pause->rx_pause && pause->tx_pause) 747 hw->fc.requested_mode = igc_fc_tx_pause; 748 else if (!pause->rx_pause && !pause->tx_pause) 749 hw->fc.requested_mode = igc_fc_none; 750 751 hw->fc.current_mode = hw->fc.requested_mode; 752 753 retval = ((hw->phy.media_type == igc_media_type_copper) ? 754 igc_force_mac_fc(hw) : igc_setup_link(hw)); 755 } 756 757 clear_bit(__IGC_RESETTING, &adapter->state); 758 return retval; 759 } 760 761 static void igc_ethtool_get_strings(struct net_device *netdev, u32 stringset, 762 u8 *data) 763 { 764 struct igc_adapter *adapter = netdev_priv(netdev); 765 u8 *p = data; 766 int i; 767 768 switch (stringset) { 769 case ETH_SS_TEST: 770 memcpy(data, *igc_gstrings_test, 771 IGC_TEST_LEN * ETH_GSTRING_LEN); 772 break; 773 case ETH_SS_STATS: 774 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) 775 ethtool_sprintf(&p, igc_gstrings_stats[i].stat_string); 776 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++) 777 ethtool_sprintf(&p, 778 igc_gstrings_net_stats[i].stat_string); 779 for (i = 0; i < adapter->num_tx_queues; i++) { 780 ethtool_sprintf(&p, "tx_queue_%u_packets", i); 781 ethtool_sprintf(&p, "tx_queue_%u_bytes", i); 782 ethtool_sprintf(&p, "tx_queue_%u_restart", i); 783 } 784 for (i = 0; i < adapter->num_rx_queues; i++) { 785 ethtool_sprintf(&p, "rx_queue_%u_packets", i); 786 ethtool_sprintf(&p, "rx_queue_%u_bytes", i); 787 ethtool_sprintf(&p, "rx_queue_%u_drops", i); 788 ethtool_sprintf(&p, "rx_queue_%u_csum_err", i); 789 ethtool_sprintf(&p, "rx_queue_%u_alloc_failed", i); 790 } 791 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */ 792 break; 793 case ETH_SS_PRIV_FLAGS: 794 memcpy(data, igc_priv_flags_strings, 795 IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN); 796 break; 797 } 798 } 799 800 static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset) 801 { 802 switch (sset) { 803 case ETH_SS_STATS: 804 return IGC_STATS_LEN; 805 case ETH_SS_TEST: 806 return IGC_TEST_LEN; 807 case ETH_SS_PRIV_FLAGS: 808 return IGC_PRIV_FLAGS_STR_LEN; 809 default: 810 return -ENOTSUPP; 811 } 812 } 813 814 static void igc_ethtool_get_stats(struct net_device *netdev, 815 struct ethtool_stats *stats, u64 *data) 816 { 817 struct igc_adapter *adapter = netdev_priv(netdev); 818 struct rtnl_link_stats64 *net_stats = &adapter->stats64; 819 unsigned int start; 820 struct igc_ring *ring; 821 int i, j; 822 char *p; 823 824 spin_lock(&adapter->stats64_lock); 825 igc_update_stats(adapter); 826 827 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) { 828 p = (char *)adapter + igc_gstrings_stats[i].stat_offset; 829 data[i] = (igc_gstrings_stats[i].sizeof_stat == 830 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 831 } 832 for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) { 833 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset; 834 data[i] = (igc_gstrings_net_stats[j].sizeof_stat == 835 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 836 } 837 for (j = 0; j < adapter->num_tx_queues; j++) { 838 u64 restart2; 839 840 ring = adapter->tx_ring[j]; 841 do { 842 start = u64_stats_fetch_begin(&ring->tx_syncp); 843 data[i] = ring->tx_stats.packets; 844 data[i + 1] = ring->tx_stats.bytes; 845 data[i + 2] = ring->tx_stats.restart_queue; 846 } while (u64_stats_fetch_retry(&ring->tx_syncp, start)); 847 do { 848 start = u64_stats_fetch_begin(&ring->tx_syncp2); 849 restart2 = ring->tx_stats.restart_queue2; 850 } while (u64_stats_fetch_retry(&ring->tx_syncp2, start)); 851 data[i + 2] += restart2; 852 853 i += IGC_TX_QUEUE_STATS_LEN; 854 } 855 for (j = 0; j < adapter->num_rx_queues; j++) { 856 ring = adapter->rx_ring[j]; 857 do { 858 start = u64_stats_fetch_begin(&ring->rx_syncp); 859 data[i] = ring->rx_stats.packets; 860 data[i + 1] = ring->rx_stats.bytes; 861 data[i + 2] = ring->rx_stats.drops; 862 data[i + 3] = ring->rx_stats.csum_err; 863 data[i + 4] = ring->rx_stats.alloc_failed; 864 } while (u64_stats_fetch_retry(&ring->rx_syncp, start)); 865 i += IGC_RX_QUEUE_STATS_LEN; 866 } 867 spin_unlock(&adapter->stats64_lock); 868 } 869 870 static int igc_ethtool_get_coalesce(struct net_device *netdev, 871 struct ethtool_coalesce *ec, 872 struct kernel_ethtool_coalesce *kernel_coal, 873 struct netlink_ext_ack *extack) 874 { 875 struct igc_adapter *adapter = netdev_priv(netdev); 876 877 if (adapter->rx_itr_setting <= 3) 878 ec->rx_coalesce_usecs = adapter->rx_itr_setting; 879 else 880 ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2; 881 882 if (!(adapter->flags & IGC_FLAG_QUEUE_PAIRS)) { 883 if (adapter->tx_itr_setting <= 3) 884 ec->tx_coalesce_usecs = adapter->tx_itr_setting; 885 else 886 ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2; 887 } 888 889 return 0; 890 } 891 892 static int igc_ethtool_set_coalesce(struct net_device *netdev, 893 struct ethtool_coalesce *ec, 894 struct kernel_ethtool_coalesce *kernel_coal, 895 struct netlink_ext_ack *extack) 896 { 897 struct igc_adapter *adapter = netdev_priv(netdev); 898 int i; 899 900 if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS || 901 (ec->rx_coalesce_usecs > 3 && 902 ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) || 903 ec->rx_coalesce_usecs == 2) 904 return -EINVAL; 905 906 if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS || 907 (ec->tx_coalesce_usecs > 3 && 908 ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) || 909 ec->tx_coalesce_usecs == 2) 910 return -EINVAL; 911 912 if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) && ec->tx_coalesce_usecs) 913 return -EINVAL; 914 915 /* If ITR is disabled, disable DMAC */ 916 if (ec->rx_coalesce_usecs == 0) { 917 if (adapter->flags & IGC_FLAG_DMAC) 918 adapter->flags &= ~IGC_FLAG_DMAC; 919 } 920 921 /* convert to rate of irq's per second */ 922 if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3) 923 adapter->rx_itr_setting = ec->rx_coalesce_usecs; 924 else 925 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2; 926 927 /* convert to rate of irq's per second */ 928 if (adapter->flags & IGC_FLAG_QUEUE_PAIRS) 929 adapter->tx_itr_setting = adapter->rx_itr_setting; 930 else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3) 931 adapter->tx_itr_setting = ec->tx_coalesce_usecs; 932 else 933 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2; 934 935 for (i = 0; i < adapter->num_q_vectors; i++) { 936 struct igc_q_vector *q_vector = adapter->q_vector[i]; 937 938 q_vector->tx.work_limit = adapter->tx_work_limit; 939 if (q_vector->rx.ring) 940 q_vector->itr_val = adapter->rx_itr_setting; 941 else 942 q_vector->itr_val = adapter->tx_itr_setting; 943 if (q_vector->itr_val && q_vector->itr_val <= 3) 944 q_vector->itr_val = IGC_START_ITR; 945 q_vector->set_itr = 1; 946 } 947 948 return 0; 949 } 950 951 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0) 952 static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter, 953 struct ethtool_rxnfc *cmd) 954 { 955 struct ethtool_rx_flow_spec *fsp = &cmd->fs; 956 struct igc_nfc_rule *rule = NULL; 957 958 cmd->data = IGC_MAX_RXNFC_RULES; 959 960 mutex_lock(&adapter->nfc_rule_lock); 961 962 rule = igc_get_nfc_rule(adapter, fsp->location); 963 if (!rule) 964 goto out; 965 966 fsp->flow_type = ETHER_FLOW; 967 fsp->ring_cookie = rule->action; 968 969 if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) { 970 fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype); 971 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK; 972 } 973 974 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) { 975 fsp->flow_type |= FLOW_EXT; 976 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci); 977 fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK); 978 } 979 980 if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) { 981 ether_addr_copy(fsp->h_u.ether_spec.h_dest, 982 rule->filter.dst_addr); 983 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest); 984 } 985 986 if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) { 987 ether_addr_copy(fsp->h_u.ether_spec.h_source, 988 rule->filter.src_addr); 989 eth_broadcast_addr(fsp->m_u.ether_spec.h_source); 990 } 991 992 if (rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) { 993 fsp->flow_type |= FLOW_EXT; 994 memcpy(fsp->h_ext.data, rule->filter.user_data, sizeof(fsp->h_ext.data)); 995 memcpy(fsp->m_ext.data, rule->filter.user_mask, sizeof(fsp->m_ext.data)); 996 } 997 998 mutex_unlock(&adapter->nfc_rule_lock); 999 return 0; 1000 1001 out: 1002 mutex_unlock(&adapter->nfc_rule_lock); 1003 return -EINVAL; 1004 } 1005 1006 static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter, 1007 struct ethtool_rxnfc *cmd, 1008 u32 *rule_locs) 1009 { 1010 struct igc_nfc_rule *rule; 1011 int cnt = 0; 1012 1013 cmd->data = IGC_MAX_RXNFC_RULES; 1014 1015 mutex_lock(&adapter->nfc_rule_lock); 1016 1017 list_for_each_entry(rule, &adapter->nfc_rule_list, list) { 1018 if (cnt == cmd->rule_cnt) { 1019 mutex_unlock(&adapter->nfc_rule_lock); 1020 return -EMSGSIZE; 1021 } 1022 rule_locs[cnt] = rule->location; 1023 cnt++; 1024 } 1025 1026 mutex_unlock(&adapter->nfc_rule_lock); 1027 1028 cmd->rule_cnt = cnt; 1029 1030 return 0; 1031 } 1032 1033 static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter, 1034 struct ethtool_rxnfc *cmd) 1035 { 1036 cmd->data = 0; 1037 1038 /* Report default options for RSS on igc */ 1039 switch (cmd->flow_type) { 1040 case TCP_V4_FLOW: 1041 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1042 fallthrough; 1043 case UDP_V4_FLOW: 1044 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 1045 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1046 fallthrough; 1047 case SCTP_V4_FLOW: 1048 case AH_ESP_V4_FLOW: 1049 case AH_V4_FLOW: 1050 case ESP_V4_FLOW: 1051 case IPV4_FLOW: 1052 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1053 break; 1054 case TCP_V6_FLOW: 1055 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1056 fallthrough; 1057 case UDP_V6_FLOW: 1058 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 1059 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1060 fallthrough; 1061 case SCTP_V6_FLOW: 1062 case AH_ESP_V6_FLOW: 1063 case AH_V6_FLOW: 1064 case ESP_V6_FLOW: 1065 case IPV6_FLOW: 1066 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1067 break; 1068 default: 1069 return -EINVAL; 1070 } 1071 1072 return 0; 1073 } 1074 1075 static int igc_ethtool_get_rxnfc(struct net_device *dev, 1076 struct ethtool_rxnfc *cmd, u32 *rule_locs) 1077 { 1078 struct igc_adapter *adapter = netdev_priv(dev); 1079 1080 switch (cmd->cmd) { 1081 case ETHTOOL_GRXRINGS: 1082 cmd->data = adapter->num_rx_queues; 1083 return 0; 1084 case ETHTOOL_GRXCLSRLCNT: 1085 cmd->rule_cnt = adapter->nfc_rule_count; 1086 return 0; 1087 case ETHTOOL_GRXCLSRULE: 1088 return igc_ethtool_get_nfc_rule(adapter, cmd); 1089 case ETHTOOL_GRXCLSRLALL: 1090 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs); 1091 case ETHTOOL_GRXFH: 1092 return igc_ethtool_get_rss_hash_opts(adapter, cmd); 1093 default: 1094 return -EOPNOTSUPP; 1095 } 1096 } 1097 1098 #define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \ 1099 IGC_FLAG_RSS_FIELD_IPV6_UDP) 1100 static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter, 1101 struct ethtool_rxnfc *nfc) 1102 { 1103 u32 flags = adapter->flags; 1104 1105 /* RSS does not support anything other than hashing 1106 * to queues on src and dst IPs and ports 1107 */ 1108 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 1109 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 1110 return -EINVAL; 1111 1112 switch (nfc->flow_type) { 1113 case TCP_V4_FLOW: 1114 case TCP_V6_FLOW: 1115 if (!(nfc->data & RXH_IP_SRC) || 1116 !(nfc->data & RXH_IP_DST) || 1117 !(nfc->data & RXH_L4_B_0_1) || 1118 !(nfc->data & RXH_L4_B_2_3)) 1119 return -EINVAL; 1120 break; 1121 case UDP_V4_FLOW: 1122 if (!(nfc->data & RXH_IP_SRC) || 1123 !(nfc->data & RXH_IP_DST)) 1124 return -EINVAL; 1125 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1126 case 0: 1127 flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP; 1128 break; 1129 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1130 flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP; 1131 break; 1132 default: 1133 return -EINVAL; 1134 } 1135 break; 1136 case UDP_V6_FLOW: 1137 if (!(nfc->data & RXH_IP_SRC) || 1138 !(nfc->data & RXH_IP_DST)) 1139 return -EINVAL; 1140 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1141 case 0: 1142 flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP; 1143 break; 1144 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1145 flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP; 1146 break; 1147 default: 1148 return -EINVAL; 1149 } 1150 break; 1151 case AH_ESP_V4_FLOW: 1152 case AH_V4_FLOW: 1153 case ESP_V4_FLOW: 1154 case SCTP_V4_FLOW: 1155 case AH_ESP_V6_FLOW: 1156 case AH_V6_FLOW: 1157 case ESP_V6_FLOW: 1158 case SCTP_V6_FLOW: 1159 if (!(nfc->data & RXH_IP_SRC) || 1160 !(nfc->data & RXH_IP_DST) || 1161 (nfc->data & RXH_L4_B_0_1) || 1162 (nfc->data & RXH_L4_B_2_3)) 1163 return -EINVAL; 1164 break; 1165 default: 1166 return -EINVAL; 1167 } 1168 1169 /* if we changed something we need to update flags */ 1170 if (flags != adapter->flags) { 1171 struct igc_hw *hw = &adapter->hw; 1172 u32 mrqc = rd32(IGC_MRQC); 1173 1174 if ((flags & UDP_RSS_FLAGS) && 1175 !(adapter->flags & UDP_RSS_FLAGS)) 1176 netdev_err(adapter->netdev, 1177 "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n"); 1178 1179 adapter->flags = flags; 1180 1181 /* Perform hash on these packet types */ 1182 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 | 1183 IGC_MRQC_RSS_FIELD_IPV4_TCP | 1184 IGC_MRQC_RSS_FIELD_IPV6 | 1185 IGC_MRQC_RSS_FIELD_IPV6_TCP; 1186 1187 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP | 1188 IGC_MRQC_RSS_FIELD_IPV6_UDP); 1189 1190 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 1191 mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP; 1192 1193 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 1194 mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP; 1195 1196 wr32(IGC_MRQC, mrqc); 1197 } 1198 1199 return 0; 1200 } 1201 1202 static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule, 1203 const struct ethtool_rx_flow_spec *fsp) 1204 { 1205 INIT_LIST_HEAD(&rule->list); 1206 1207 rule->action = fsp->ring_cookie; 1208 rule->location = fsp->location; 1209 1210 if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) { 1211 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci); 1212 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI; 1213 } 1214 1215 if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) { 1216 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto); 1217 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE; 1218 } 1219 1220 /* Both source and destination address filters only support the full 1221 * mask. 1222 */ 1223 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) { 1224 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR; 1225 ether_addr_copy(rule->filter.src_addr, 1226 fsp->h_u.ether_spec.h_source); 1227 } 1228 1229 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) { 1230 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR; 1231 ether_addr_copy(rule->filter.dst_addr, 1232 fsp->h_u.ether_spec.h_dest); 1233 } 1234 1235 /* VLAN etype matching */ 1236 if ((fsp->flow_type & FLOW_EXT) && fsp->h_ext.vlan_etype) { 1237 rule->filter.vlan_etype = fsp->h_ext.vlan_etype; 1238 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_ETYPE; 1239 } 1240 1241 /* Check for user defined data */ 1242 if ((fsp->flow_type & FLOW_EXT) && 1243 (fsp->h_ext.data[0] || fsp->h_ext.data[1])) { 1244 rule->filter.match_flags |= IGC_FILTER_FLAG_USER_DATA; 1245 memcpy(rule->filter.user_data, fsp->h_ext.data, sizeof(fsp->h_ext.data)); 1246 memcpy(rule->filter.user_mask, fsp->m_ext.data, sizeof(fsp->m_ext.data)); 1247 } 1248 1249 /* When multiple filter options or user data or vlan etype is set, use a 1250 * flex filter. 1251 */ 1252 if ((rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) || 1253 (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) || 1254 (rule->filter.match_flags & (rule->filter.match_flags - 1))) 1255 rule->flex = true; 1256 else 1257 rule->flex = false; 1258 } 1259 1260 /** 1261 * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid 1262 * @adapter: Pointer to adapter 1263 * @rule: Rule under evaluation 1264 * 1265 * The driver doesn't support rules with multiple matches so if more than 1266 * one bit in filter flags is set, @rule is considered invalid. 1267 * 1268 * Also, if there is already another rule with the same filter in a different 1269 * location, @rule is considered invalid. 1270 * 1271 * Context: Expects adapter->nfc_rule_lock to be held by caller. 1272 * 1273 * Return: 0 in case of success, negative errno code otherwise. 1274 */ 1275 static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter, 1276 struct igc_nfc_rule *rule) 1277 { 1278 struct net_device *dev = adapter->netdev; 1279 u8 flags = rule->filter.match_flags; 1280 struct igc_nfc_rule *tmp; 1281 1282 if (!flags) { 1283 netdev_dbg(dev, "Rule with no match\n"); 1284 return -EINVAL; 1285 } 1286 1287 list_for_each_entry(tmp, &adapter->nfc_rule_list, list) { 1288 if (!memcmp(&rule->filter, &tmp->filter, 1289 sizeof(rule->filter)) && 1290 tmp->location != rule->location) { 1291 netdev_dbg(dev, "Rule already exists\n"); 1292 return -EEXIST; 1293 } 1294 } 1295 1296 return 0; 1297 } 1298 1299 static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter, 1300 struct ethtool_rxnfc *cmd) 1301 { 1302 struct net_device *netdev = adapter->netdev; 1303 struct ethtool_rx_flow_spec *fsp = 1304 (struct ethtool_rx_flow_spec *)&cmd->fs; 1305 struct igc_nfc_rule *rule, *old_rule; 1306 int err; 1307 1308 if (!(netdev->hw_features & NETIF_F_NTUPLE)) { 1309 netdev_dbg(netdev, "N-tuple filters disabled\n"); 1310 return -EOPNOTSUPP; 1311 } 1312 1313 if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) { 1314 netdev_dbg(netdev, "Only ethernet flow type is supported\n"); 1315 return -EOPNOTSUPP; 1316 } 1317 1318 if (fsp->ring_cookie >= adapter->num_rx_queues) { 1319 netdev_dbg(netdev, "Invalid action\n"); 1320 return -EINVAL; 1321 } 1322 1323 if (fsp->location >= IGC_MAX_RXNFC_RULES) { 1324 netdev_dbg(netdev, "Invalid location\n"); 1325 return -EINVAL; 1326 } 1327 1328 rule = kzalloc(sizeof(*rule), GFP_KERNEL); 1329 if (!rule) 1330 return -ENOMEM; 1331 1332 igc_ethtool_init_nfc_rule(rule, fsp); 1333 1334 mutex_lock(&adapter->nfc_rule_lock); 1335 1336 err = igc_ethtool_check_nfc_rule(adapter, rule); 1337 if (err) 1338 goto err; 1339 1340 old_rule = igc_get_nfc_rule(adapter, fsp->location); 1341 if (old_rule) 1342 igc_del_nfc_rule(adapter, old_rule); 1343 1344 err = igc_add_nfc_rule(adapter, rule); 1345 if (err) 1346 goto err; 1347 1348 mutex_unlock(&adapter->nfc_rule_lock); 1349 return 0; 1350 1351 err: 1352 mutex_unlock(&adapter->nfc_rule_lock); 1353 kfree(rule); 1354 return err; 1355 } 1356 1357 static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter, 1358 struct ethtool_rxnfc *cmd) 1359 { 1360 struct ethtool_rx_flow_spec *fsp = 1361 (struct ethtool_rx_flow_spec *)&cmd->fs; 1362 struct igc_nfc_rule *rule; 1363 1364 mutex_lock(&adapter->nfc_rule_lock); 1365 1366 rule = igc_get_nfc_rule(adapter, fsp->location); 1367 if (!rule) { 1368 mutex_unlock(&adapter->nfc_rule_lock); 1369 return -EINVAL; 1370 } 1371 1372 igc_del_nfc_rule(adapter, rule); 1373 1374 mutex_unlock(&adapter->nfc_rule_lock); 1375 return 0; 1376 } 1377 1378 static int igc_ethtool_set_rxnfc(struct net_device *dev, 1379 struct ethtool_rxnfc *cmd) 1380 { 1381 struct igc_adapter *adapter = netdev_priv(dev); 1382 1383 switch (cmd->cmd) { 1384 case ETHTOOL_SRXFH: 1385 return igc_ethtool_set_rss_hash_opt(adapter, cmd); 1386 case ETHTOOL_SRXCLSRLINS: 1387 return igc_ethtool_add_nfc_rule(adapter, cmd); 1388 case ETHTOOL_SRXCLSRLDEL: 1389 return igc_ethtool_del_nfc_rule(adapter, cmd); 1390 default: 1391 return -EOPNOTSUPP; 1392 } 1393 } 1394 1395 void igc_write_rss_indir_tbl(struct igc_adapter *adapter) 1396 { 1397 struct igc_hw *hw = &adapter->hw; 1398 u32 reg = IGC_RETA(0); 1399 u32 shift = 0; 1400 int i = 0; 1401 1402 while (i < IGC_RETA_SIZE) { 1403 u32 val = 0; 1404 int j; 1405 1406 for (j = 3; j >= 0; j--) { 1407 val <<= 8; 1408 val |= adapter->rss_indir_tbl[i + j]; 1409 } 1410 1411 wr32(reg, val << shift); 1412 reg += 4; 1413 i += 4; 1414 } 1415 } 1416 1417 static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev) 1418 { 1419 return IGC_RETA_SIZE; 1420 } 1421 1422 static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 1423 u8 *hfunc) 1424 { 1425 struct igc_adapter *adapter = netdev_priv(netdev); 1426 int i; 1427 1428 if (hfunc) 1429 *hfunc = ETH_RSS_HASH_TOP; 1430 if (!indir) 1431 return 0; 1432 for (i = 0; i < IGC_RETA_SIZE; i++) 1433 indir[i] = adapter->rss_indir_tbl[i]; 1434 1435 return 0; 1436 } 1437 1438 static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir, 1439 const u8 *key, const u8 hfunc) 1440 { 1441 struct igc_adapter *adapter = netdev_priv(netdev); 1442 u32 num_queues; 1443 int i; 1444 1445 /* We do not allow change in unsupported parameters */ 1446 if (key || 1447 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) 1448 return -EOPNOTSUPP; 1449 if (!indir) 1450 return 0; 1451 1452 num_queues = adapter->rss_queues; 1453 1454 /* Verify user input. */ 1455 for (i = 0; i < IGC_RETA_SIZE; i++) 1456 if (indir[i] >= num_queues) 1457 return -EINVAL; 1458 1459 for (i = 0; i < IGC_RETA_SIZE; i++) 1460 adapter->rss_indir_tbl[i] = indir[i]; 1461 1462 igc_write_rss_indir_tbl(adapter); 1463 1464 return 0; 1465 } 1466 1467 static void igc_ethtool_get_channels(struct net_device *netdev, 1468 struct ethtool_channels *ch) 1469 { 1470 struct igc_adapter *adapter = netdev_priv(netdev); 1471 1472 /* Report maximum channels */ 1473 ch->max_combined = igc_get_max_rss_queues(adapter); 1474 1475 /* Report info for other vector */ 1476 if (adapter->flags & IGC_FLAG_HAS_MSIX) { 1477 ch->max_other = NON_Q_VECTORS; 1478 ch->other_count = NON_Q_VECTORS; 1479 } 1480 1481 ch->combined_count = adapter->rss_queues; 1482 } 1483 1484 static int igc_ethtool_set_channels(struct net_device *netdev, 1485 struct ethtool_channels *ch) 1486 { 1487 struct igc_adapter *adapter = netdev_priv(netdev); 1488 unsigned int count = ch->combined_count; 1489 unsigned int max_combined = 0; 1490 1491 /* Verify they are not requesting separate vectors */ 1492 if (!count || ch->rx_count || ch->tx_count) 1493 return -EINVAL; 1494 1495 /* Verify other_count is valid and has not been changed */ 1496 if (ch->other_count != NON_Q_VECTORS) 1497 return -EINVAL; 1498 1499 /* Verify the number of channels doesn't exceed hw limits */ 1500 max_combined = igc_get_max_rss_queues(adapter); 1501 if (count > max_combined) 1502 return -EINVAL; 1503 1504 if (count != adapter->rss_queues) { 1505 adapter->rss_queues = count; 1506 igc_set_flag_queue_pairs(adapter, max_combined); 1507 1508 /* Hardware has to reinitialize queues and interrupts to 1509 * match the new configuration. 1510 */ 1511 return igc_reinit_queues(adapter); 1512 } 1513 1514 return 0; 1515 } 1516 1517 static int igc_ethtool_get_ts_info(struct net_device *dev, 1518 struct ethtool_ts_info *info) 1519 { 1520 struct igc_adapter *adapter = netdev_priv(dev); 1521 1522 if (adapter->ptp_clock) 1523 info->phc_index = ptp_clock_index(adapter->ptp_clock); 1524 else 1525 info->phc_index = -1; 1526 1527 switch (adapter->hw.mac.type) { 1528 case igc_i225: 1529 info->so_timestamping = 1530 SOF_TIMESTAMPING_TX_SOFTWARE | 1531 SOF_TIMESTAMPING_RX_SOFTWARE | 1532 SOF_TIMESTAMPING_SOFTWARE | 1533 SOF_TIMESTAMPING_TX_HARDWARE | 1534 SOF_TIMESTAMPING_RX_HARDWARE | 1535 SOF_TIMESTAMPING_RAW_HARDWARE; 1536 1537 info->tx_types = 1538 BIT(HWTSTAMP_TX_OFF) | 1539 BIT(HWTSTAMP_TX_ON); 1540 1541 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE); 1542 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL); 1543 1544 return 0; 1545 default: 1546 return -EOPNOTSUPP; 1547 } 1548 } 1549 1550 static u32 igc_ethtool_get_priv_flags(struct net_device *netdev) 1551 { 1552 struct igc_adapter *adapter = netdev_priv(netdev); 1553 u32 priv_flags = 0; 1554 1555 if (adapter->flags & IGC_FLAG_RX_LEGACY) 1556 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX; 1557 1558 return priv_flags; 1559 } 1560 1561 static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags) 1562 { 1563 struct igc_adapter *adapter = netdev_priv(netdev); 1564 unsigned int flags = adapter->flags; 1565 1566 flags &= ~IGC_FLAG_RX_LEGACY; 1567 if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX) 1568 flags |= IGC_FLAG_RX_LEGACY; 1569 1570 if (flags != adapter->flags) { 1571 adapter->flags = flags; 1572 1573 /* reset interface to repopulate queues */ 1574 if (netif_running(netdev)) 1575 igc_reinit_locked(adapter); 1576 } 1577 1578 return 0; 1579 } 1580 1581 static int igc_ethtool_get_eee(struct net_device *netdev, 1582 struct ethtool_eee *edata) 1583 { 1584 struct igc_adapter *adapter = netdev_priv(netdev); 1585 struct igc_hw *hw = &adapter->hw; 1586 u32 eeer; 1587 1588 if (hw->dev_spec._base.eee_enable) 1589 edata->advertised = 1590 mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert); 1591 1592 *edata = adapter->eee; 1593 edata->supported = SUPPORTED_Autoneg; 1594 1595 eeer = rd32(IGC_EEER); 1596 1597 /* EEE status on negotiated link */ 1598 if (eeer & IGC_EEER_EEE_NEG) 1599 edata->eee_active = true; 1600 1601 if (eeer & IGC_EEER_TX_LPI_EN) 1602 edata->tx_lpi_enabled = true; 1603 1604 edata->eee_enabled = hw->dev_spec._base.eee_enable; 1605 1606 edata->advertised = SUPPORTED_Autoneg; 1607 edata->lp_advertised = SUPPORTED_Autoneg; 1608 1609 /* Report correct negotiated EEE status for devices that 1610 * wrongly report EEE at half-duplex 1611 */ 1612 if (adapter->link_duplex == HALF_DUPLEX) { 1613 edata->eee_enabled = false; 1614 edata->eee_active = false; 1615 edata->tx_lpi_enabled = false; 1616 edata->advertised &= ~edata->advertised; 1617 } 1618 1619 return 0; 1620 } 1621 1622 static int igc_ethtool_set_eee(struct net_device *netdev, 1623 struct ethtool_eee *edata) 1624 { 1625 struct igc_adapter *adapter = netdev_priv(netdev); 1626 struct igc_hw *hw = &adapter->hw; 1627 struct ethtool_eee eee_curr; 1628 s32 ret_val; 1629 1630 memset(&eee_curr, 0, sizeof(struct ethtool_eee)); 1631 1632 ret_val = igc_ethtool_get_eee(netdev, &eee_curr); 1633 if (ret_val) { 1634 netdev_err(netdev, 1635 "Problem setting EEE advertisement options\n"); 1636 return -EINVAL; 1637 } 1638 1639 if (eee_curr.eee_enabled) { 1640 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) { 1641 netdev_err(netdev, 1642 "Setting EEE tx-lpi is not supported\n"); 1643 return -EINVAL; 1644 } 1645 1646 /* Tx LPI timer is not implemented currently */ 1647 if (edata->tx_lpi_timer) { 1648 netdev_err(netdev, 1649 "Setting EEE Tx LPI timer is not supported\n"); 1650 return -EINVAL; 1651 } 1652 } else if (!edata->eee_enabled) { 1653 netdev_err(netdev, 1654 "Setting EEE options are not supported with EEE disabled\n"); 1655 return -EINVAL; 1656 } 1657 1658 adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised); 1659 if (hw->dev_spec._base.eee_enable != edata->eee_enabled) { 1660 hw->dev_spec._base.eee_enable = edata->eee_enabled; 1661 adapter->flags |= IGC_FLAG_EEE; 1662 1663 /* reset link */ 1664 if (netif_running(netdev)) 1665 igc_reinit_locked(adapter); 1666 else 1667 igc_reset(adapter); 1668 } 1669 1670 return 0; 1671 } 1672 1673 static int igc_ethtool_begin(struct net_device *netdev) 1674 { 1675 struct igc_adapter *adapter = netdev_priv(netdev); 1676 1677 pm_runtime_get_sync(&adapter->pdev->dev); 1678 return 0; 1679 } 1680 1681 static void igc_ethtool_complete(struct net_device *netdev) 1682 { 1683 struct igc_adapter *adapter = netdev_priv(netdev); 1684 1685 pm_runtime_put(&adapter->pdev->dev); 1686 } 1687 1688 static int igc_ethtool_get_link_ksettings(struct net_device *netdev, 1689 struct ethtool_link_ksettings *cmd) 1690 { 1691 struct igc_adapter *adapter = netdev_priv(netdev); 1692 struct igc_hw *hw = &adapter->hw; 1693 u32 status; 1694 u32 speed; 1695 1696 ethtool_link_ksettings_zero_link_mode(cmd, supported); 1697 ethtool_link_ksettings_zero_link_mode(cmd, advertising); 1698 1699 /* supported link modes */ 1700 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half); 1701 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full); 1702 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half); 1703 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full); 1704 ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full); 1705 ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full); 1706 1707 /* twisted pair */ 1708 cmd->base.port = PORT_TP; 1709 cmd->base.phy_address = hw->phy.addr; 1710 1711 /* advertising link modes */ 1712 if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF) 1713 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half); 1714 if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL) 1715 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full); 1716 if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF) 1717 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half); 1718 if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL) 1719 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full); 1720 if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL) 1721 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full); 1722 if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL) 1723 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full); 1724 1725 /* set autoneg settings */ 1726 if (hw->mac.autoneg == 1) { 1727 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 1728 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1729 Autoneg); 1730 } 1731 1732 /* Set pause flow control settings */ 1733 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); 1734 1735 switch (hw->fc.requested_mode) { 1736 case igc_fc_full: 1737 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1738 break; 1739 case igc_fc_rx_pause: 1740 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1741 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1742 Asym_Pause); 1743 break; 1744 case igc_fc_tx_pause: 1745 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1746 Asym_Pause); 1747 break; 1748 default: 1749 break; 1750 } 1751 1752 status = pm_runtime_suspended(&adapter->pdev->dev) ? 1753 0 : rd32(IGC_STATUS); 1754 1755 if (status & IGC_STATUS_LU) { 1756 if (status & IGC_STATUS_SPEED_1000) { 1757 /* For I225, STATUS will indicate 1G speed in both 1758 * 1 Gbps and 2.5 Gbps link modes. 1759 * An additional bit is used 1760 * to differentiate between 1 Gbps and 2.5 Gbps. 1761 */ 1762 if (hw->mac.type == igc_i225 && 1763 (status & IGC_STATUS_SPEED_2500)) { 1764 speed = SPEED_2500; 1765 } else { 1766 speed = SPEED_1000; 1767 } 1768 } else if (status & IGC_STATUS_SPEED_100) { 1769 speed = SPEED_100; 1770 } else { 1771 speed = SPEED_10; 1772 } 1773 if ((status & IGC_STATUS_FD) || 1774 hw->phy.media_type != igc_media_type_copper) 1775 cmd->base.duplex = DUPLEX_FULL; 1776 else 1777 cmd->base.duplex = DUPLEX_HALF; 1778 } else { 1779 speed = SPEED_UNKNOWN; 1780 cmd->base.duplex = DUPLEX_UNKNOWN; 1781 } 1782 cmd->base.speed = speed; 1783 if (hw->mac.autoneg) 1784 cmd->base.autoneg = AUTONEG_ENABLE; 1785 else 1786 cmd->base.autoneg = AUTONEG_DISABLE; 1787 1788 /* MDI-X => 2; MDI =>1; Invalid =>0 */ 1789 if (hw->phy.media_type == igc_media_type_copper) 1790 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X : 1791 ETH_TP_MDI; 1792 else 1793 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID; 1794 1795 if (hw->phy.mdix == AUTO_ALL_MODES) 1796 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; 1797 else 1798 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix; 1799 1800 return 0; 1801 } 1802 1803 static int 1804 igc_ethtool_set_link_ksettings(struct net_device *netdev, 1805 const struct ethtool_link_ksettings *cmd) 1806 { 1807 struct igc_adapter *adapter = netdev_priv(netdev); 1808 struct net_device *dev = adapter->netdev; 1809 struct igc_hw *hw = &adapter->hw; 1810 u32 advertising; 1811 1812 /* When adapter in resetting mode, autoneg/speed/duplex 1813 * cannot be changed 1814 */ 1815 if (igc_check_reset_block(hw)) { 1816 netdev_err(dev, "Cannot change link characteristics when reset is active\n"); 1817 return -EINVAL; 1818 } 1819 1820 /* MDI setting is only allowed when autoneg enabled because 1821 * some hardware doesn't allow MDI setting when speed or 1822 * duplex is forced. 1823 */ 1824 if (cmd->base.eth_tp_mdix_ctrl) { 1825 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO && 1826 cmd->base.autoneg != AUTONEG_ENABLE) { 1827 netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n"); 1828 return -EINVAL; 1829 } 1830 } 1831 1832 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 1833 usleep_range(1000, 2000); 1834 1835 ethtool_convert_link_mode_to_legacy_u32(&advertising, 1836 cmd->link_modes.advertising); 1837 /* Converting to legacy u32 drops ETHTOOL_LINK_MODE_2500baseT_Full_BIT. 1838 * We have to check this and convert it to ADVERTISE_2500_FULL 1839 * (aka ETHTOOL_LINK_MODE_2500baseX_Full_BIT) explicitly. 1840 */ 1841 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 2500baseT_Full)) 1842 advertising |= ADVERTISE_2500_FULL; 1843 1844 if (cmd->base.autoneg == AUTONEG_ENABLE) { 1845 hw->mac.autoneg = 1; 1846 hw->phy.autoneg_advertised = advertising; 1847 if (adapter->fc_autoneg) 1848 hw->fc.requested_mode = igc_fc_default; 1849 } else { 1850 netdev_info(dev, "Force mode currently not supported\n"); 1851 } 1852 1853 /* MDI-X => 2; MDI => 1; Auto => 3 */ 1854 if (cmd->base.eth_tp_mdix_ctrl) { 1855 /* fix up the value for auto (3 => 0) as zero is mapped 1856 * internally to auto 1857 */ 1858 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO) 1859 hw->phy.mdix = AUTO_ALL_MODES; 1860 else 1861 hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl; 1862 } 1863 1864 /* reset the link */ 1865 if (netif_running(adapter->netdev)) { 1866 igc_down(adapter); 1867 igc_up(adapter); 1868 } else { 1869 igc_reset(adapter); 1870 } 1871 1872 clear_bit(__IGC_RESETTING, &adapter->state); 1873 1874 return 0; 1875 } 1876 1877 static void igc_ethtool_diag_test(struct net_device *netdev, 1878 struct ethtool_test *eth_test, u64 *data) 1879 { 1880 struct igc_adapter *adapter = netdev_priv(netdev); 1881 bool if_running = netif_running(netdev); 1882 1883 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 1884 netdev_info(adapter->netdev, "Offline testing starting"); 1885 set_bit(__IGC_TESTING, &adapter->state); 1886 1887 /* Link test performed before hardware reset so autoneg doesn't 1888 * interfere with test result 1889 */ 1890 if (!igc_link_test(adapter, &data[TEST_LINK])) 1891 eth_test->flags |= ETH_TEST_FL_FAILED; 1892 1893 if (if_running) 1894 igc_close(netdev); 1895 else 1896 igc_reset(adapter); 1897 1898 netdev_info(adapter->netdev, "Register testing starting"); 1899 if (!igc_reg_test(adapter, &data[TEST_REG])) 1900 eth_test->flags |= ETH_TEST_FL_FAILED; 1901 1902 igc_reset(adapter); 1903 1904 netdev_info(adapter->netdev, "EEPROM testing starting"); 1905 if (!igc_eeprom_test(adapter, &data[TEST_EEP])) 1906 eth_test->flags |= ETH_TEST_FL_FAILED; 1907 1908 igc_reset(adapter); 1909 1910 /* loopback and interrupt tests 1911 * will be implemented in the future 1912 */ 1913 data[TEST_LOOP] = 0; 1914 data[TEST_IRQ] = 0; 1915 1916 clear_bit(__IGC_TESTING, &adapter->state); 1917 if (if_running) 1918 igc_open(netdev); 1919 } else { 1920 netdev_info(adapter->netdev, "Online testing starting"); 1921 1922 /* register, eeprom, intr and loopback tests not run online */ 1923 data[TEST_REG] = 0; 1924 data[TEST_EEP] = 0; 1925 data[TEST_IRQ] = 0; 1926 data[TEST_LOOP] = 0; 1927 1928 if (!igc_link_test(adapter, &data[TEST_LINK])) 1929 eth_test->flags |= ETH_TEST_FL_FAILED; 1930 } 1931 1932 msleep_interruptible(4 * 1000); 1933 } 1934 1935 static const struct ethtool_ops igc_ethtool_ops = { 1936 .supported_coalesce_params = ETHTOOL_COALESCE_USECS, 1937 .get_drvinfo = igc_ethtool_get_drvinfo, 1938 .get_regs_len = igc_ethtool_get_regs_len, 1939 .get_regs = igc_ethtool_get_regs, 1940 .get_wol = igc_ethtool_get_wol, 1941 .set_wol = igc_ethtool_set_wol, 1942 .get_msglevel = igc_ethtool_get_msglevel, 1943 .set_msglevel = igc_ethtool_set_msglevel, 1944 .nway_reset = igc_ethtool_nway_reset, 1945 .get_link = igc_ethtool_get_link, 1946 .get_eeprom_len = igc_ethtool_get_eeprom_len, 1947 .get_eeprom = igc_ethtool_get_eeprom, 1948 .set_eeprom = igc_ethtool_set_eeprom, 1949 .get_ringparam = igc_ethtool_get_ringparam, 1950 .set_ringparam = igc_ethtool_set_ringparam, 1951 .get_pauseparam = igc_ethtool_get_pauseparam, 1952 .set_pauseparam = igc_ethtool_set_pauseparam, 1953 .get_strings = igc_ethtool_get_strings, 1954 .get_sset_count = igc_ethtool_get_sset_count, 1955 .get_ethtool_stats = igc_ethtool_get_stats, 1956 .get_coalesce = igc_ethtool_get_coalesce, 1957 .set_coalesce = igc_ethtool_set_coalesce, 1958 .get_rxnfc = igc_ethtool_get_rxnfc, 1959 .set_rxnfc = igc_ethtool_set_rxnfc, 1960 .get_rxfh_indir_size = igc_ethtool_get_rxfh_indir_size, 1961 .get_rxfh = igc_ethtool_get_rxfh, 1962 .set_rxfh = igc_ethtool_set_rxfh, 1963 .get_ts_info = igc_ethtool_get_ts_info, 1964 .get_channels = igc_ethtool_get_channels, 1965 .set_channels = igc_ethtool_set_channels, 1966 .get_priv_flags = igc_ethtool_get_priv_flags, 1967 .set_priv_flags = igc_ethtool_set_priv_flags, 1968 .get_eee = igc_ethtool_get_eee, 1969 .set_eee = igc_ethtool_set_eee, 1970 .begin = igc_ethtool_begin, 1971 .complete = igc_ethtool_complete, 1972 .get_link_ksettings = igc_ethtool_get_link_ksettings, 1973 .set_link_ksettings = igc_ethtool_set_link_ksettings, 1974 .self_test = igc_ethtool_diag_test, 1975 }; 1976 1977 void igc_ethtool_set_ops(struct net_device *netdev) 1978 { 1979 netdev->ethtool_ops = &igc_ethtool_ops; 1980 } 1981