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 #define VLAN_TCI_FULL_MASK ((__force __be16)~0) 962 static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter, 963 struct ethtool_rxnfc *cmd) 964 { 965 struct ethtool_rx_flow_spec *fsp = &cmd->fs; 966 struct igc_nfc_rule *rule = NULL; 967 968 cmd->data = IGC_MAX_RXNFC_RULES; 969 970 mutex_lock(&adapter->nfc_rule_lock); 971 972 rule = igc_get_nfc_rule(adapter, fsp->location); 973 if (!rule) 974 goto out; 975 976 fsp->flow_type = ETHER_FLOW; 977 fsp->ring_cookie = rule->action; 978 979 if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) { 980 fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype); 981 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK; 982 } 983 984 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) { 985 fsp->flow_type |= FLOW_EXT; 986 fsp->h_ext.vlan_etype = rule->filter.vlan_etype; 987 fsp->m_ext.vlan_etype = ETHER_TYPE_FULL_MASK; 988 } 989 990 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) { 991 fsp->flow_type |= FLOW_EXT; 992 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci); 993 fsp->m_ext.vlan_tci = htons(rule->filter.vlan_tci_mask); 994 } 995 996 if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) { 997 ether_addr_copy(fsp->h_u.ether_spec.h_dest, 998 rule->filter.dst_addr); 999 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest); 1000 } 1001 1002 if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) { 1003 ether_addr_copy(fsp->h_u.ether_spec.h_source, 1004 rule->filter.src_addr); 1005 eth_broadcast_addr(fsp->m_u.ether_spec.h_source); 1006 } 1007 1008 if (rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) { 1009 fsp->flow_type |= FLOW_EXT; 1010 memcpy(fsp->h_ext.data, rule->filter.user_data, sizeof(fsp->h_ext.data)); 1011 memcpy(fsp->m_ext.data, rule->filter.user_mask, sizeof(fsp->m_ext.data)); 1012 } 1013 1014 mutex_unlock(&adapter->nfc_rule_lock); 1015 return 0; 1016 1017 out: 1018 mutex_unlock(&adapter->nfc_rule_lock); 1019 return -EINVAL; 1020 } 1021 1022 static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter, 1023 struct ethtool_rxnfc *cmd, 1024 u32 *rule_locs) 1025 { 1026 struct igc_nfc_rule *rule; 1027 int cnt = 0; 1028 1029 cmd->data = IGC_MAX_RXNFC_RULES; 1030 1031 mutex_lock(&adapter->nfc_rule_lock); 1032 1033 list_for_each_entry(rule, &adapter->nfc_rule_list, list) { 1034 if (cnt == cmd->rule_cnt) { 1035 mutex_unlock(&adapter->nfc_rule_lock); 1036 return -EMSGSIZE; 1037 } 1038 rule_locs[cnt] = rule->location; 1039 cnt++; 1040 } 1041 1042 mutex_unlock(&adapter->nfc_rule_lock); 1043 1044 cmd->rule_cnt = cnt; 1045 1046 return 0; 1047 } 1048 1049 static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter, 1050 struct ethtool_rxnfc *cmd) 1051 { 1052 cmd->data = 0; 1053 1054 /* Report default options for RSS on igc */ 1055 switch (cmd->flow_type) { 1056 case TCP_V4_FLOW: 1057 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1058 fallthrough; 1059 case UDP_V4_FLOW: 1060 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 1061 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1062 fallthrough; 1063 case SCTP_V4_FLOW: 1064 case AH_ESP_V4_FLOW: 1065 case AH_V4_FLOW: 1066 case ESP_V4_FLOW: 1067 case IPV4_FLOW: 1068 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1069 break; 1070 case TCP_V6_FLOW: 1071 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1072 fallthrough; 1073 case UDP_V6_FLOW: 1074 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 1075 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1076 fallthrough; 1077 case SCTP_V6_FLOW: 1078 case AH_ESP_V6_FLOW: 1079 case AH_V6_FLOW: 1080 case ESP_V6_FLOW: 1081 case IPV6_FLOW: 1082 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1083 break; 1084 default: 1085 return -EINVAL; 1086 } 1087 1088 return 0; 1089 } 1090 1091 static int igc_ethtool_get_rxnfc(struct net_device *dev, 1092 struct ethtool_rxnfc *cmd, u32 *rule_locs) 1093 { 1094 struct igc_adapter *adapter = netdev_priv(dev); 1095 1096 switch (cmd->cmd) { 1097 case ETHTOOL_GRXRINGS: 1098 cmd->data = adapter->num_rx_queues; 1099 return 0; 1100 case ETHTOOL_GRXCLSRLCNT: 1101 cmd->rule_cnt = adapter->nfc_rule_count; 1102 return 0; 1103 case ETHTOOL_GRXCLSRULE: 1104 return igc_ethtool_get_nfc_rule(adapter, cmd); 1105 case ETHTOOL_GRXCLSRLALL: 1106 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs); 1107 case ETHTOOL_GRXFH: 1108 return igc_ethtool_get_rss_hash_opts(adapter, cmd); 1109 default: 1110 return -EOPNOTSUPP; 1111 } 1112 } 1113 1114 #define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \ 1115 IGC_FLAG_RSS_FIELD_IPV6_UDP) 1116 static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter, 1117 struct ethtool_rxnfc *nfc) 1118 { 1119 u32 flags = adapter->flags; 1120 1121 /* RSS does not support anything other than hashing 1122 * to queues on src and dst IPs and ports 1123 */ 1124 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 1125 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 1126 return -EINVAL; 1127 1128 switch (nfc->flow_type) { 1129 case TCP_V4_FLOW: 1130 case TCP_V6_FLOW: 1131 if (!(nfc->data & RXH_IP_SRC) || 1132 !(nfc->data & RXH_IP_DST) || 1133 !(nfc->data & RXH_L4_B_0_1) || 1134 !(nfc->data & RXH_L4_B_2_3)) 1135 return -EINVAL; 1136 break; 1137 case UDP_V4_FLOW: 1138 if (!(nfc->data & RXH_IP_SRC) || 1139 !(nfc->data & RXH_IP_DST)) 1140 return -EINVAL; 1141 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1142 case 0: 1143 flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP; 1144 break; 1145 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1146 flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP; 1147 break; 1148 default: 1149 return -EINVAL; 1150 } 1151 break; 1152 case UDP_V6_FLOW: 1153 if (!(nfc->data & RXH_IP_SRC) || 1154 !(nfc->data & RXH_IP_DST)) 1155 return -EINVAL; 1156 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1157 case 0: 1158 flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP; 1159 break; 1160 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1161 flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP; 1162 break; 1163 default: 1164 return -EINVAL; 1165 } 1166 break; 1167 case AH_ESP_V4_FLOW: 1168 case AH_V4_FLOW: 1169 case ESP_V4_FLOW: 1170 case SCTP_V4_FLOW: 1171 case AH_ESP_V6_FLOW: 1172 case AH_V6_FLOW: 1173 case ESP_V6_FLOW: 1174 case SCTP_V6_FLOW: 1175 if (!(nfc->data & RXH_IP_SRC) || 1176 !(nfc->data & RXH_IP_DST) || 1177 (nfc->data & RXH_L4_B_0_1) || 1178 (nfc->data & RXH_L4_B_2_3)) 1179 return -EINVAL; 1180 break; 1181 default: 1182 return -EINVAL; 1183 } 1184 1185 /* if we changed something we need to update flags */ 1186 if (flags != adapter->flags) { 1187 struct igc_hw *hw = &adapter->hw; 1188 u32 mrqc = rd32(IGC_MRQC); 1189 1190 if ((flags & UDP_RSS_FLAGS) && 1191 !(adapter->flags & UDP_RSS_FLAGS)) 1192 netdev_err(adapter->netdev, 1193 "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n"); 1194 1195 adapter->flags = flags; 1196 1197 /* Perform hash on these packet types */ 1198 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 | 1199 IGC_MRQC_RSS_FIELD_IPV4_TCP | 1200 IGC_MRQC_RSS_FIELD_IPV6 | 1201 IGC_MRQC_RSS_FIELD_IPV6_TCP; 1202 1203 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP | 1204 IGC_MRQC_RSS_FIELD_IPV6_UDP); 1205 1206 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 1207 mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP; 1208 1209 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 1210 mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP; 1211 1212 wr32(IGC_MRQC, mrqc); 1213 } 1214 1215 return 0; 1216 } 1217 1218 static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule, 1219 const struct ethtool_rx_flow_spec *fsp) 1220 { 1221 INIT_LIST_HEAD(&rule->list); 1222 1223 rule->action = fsp->ring_cookie; 1224 rule->location = fsp->location; 1225 1226 if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) { 1227 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci); 1228 rule->filter.vlan_tci_mask = ntohs(fsp->m_ext.vlan_tci); 1229 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI; 1230 } 1231 1232 if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) { 1233 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto); 1234 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE; 1235 } 1236 1237 /* Both source and destination address filters only support the full 1238 * mask. 1239 */ 1240 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) { 1241 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR; 1242 ether_addr_copy(rule->filter.src_addr, 1243 fsp->h_u.ether_spec.h_source); 1244 } 1245 1246 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) { 1247 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR; 1248 ether_addr_copy(rule->filter.dst_addr, 1249 fsp->h_u.ether_spec.h_dest); 1250 } 1251 1252 /* VLAN etype matching */ 1253 if ((fsp->flow_type & FLOW_EXT) && fsp->h_ext.vlan_etype) { 1254 rule->filter.vlan_etype = fsp->h_ext.vlan_etype; 1255 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_ETYPE; 1256 } 1257 1258 /* Check for user defined data */ 1259 if ((fsp->flow_type & FLOW_EXT) && 1260 (fsp->h_ext.data[0] || fsp->h_ext.data[1])) { 1261 rule->filter.match_flags |= IGC_FILTER_FLAG_USER_DATA; 1262 memcpy(rule->filter.user_data, fsp->h_ext.data, sizeof(fsp->h_ext.data)); 1263 memcpy(rule->filter.user_mask, fsp->m_ext.data, sizeof(fsp->m_ext.data)); 1264 } 1265 1266 /* The i225/i226 has various different filters. Flex filters provide a 1267 * way to match up to the first 128 bytes of a packet. Use them for: 1268 * a) For specific user data 1269 * b) For VLAN EtherType 1270 * c) For full TCI match 1271 * d) Or in case multiple filter criteria are set 1272 * 1273 * Otherwise, use the simple MAC, VLAN PRIO or EtherType filters. 1274 */ 1275 if ((rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) || 1276 (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) || 1277 ((rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) && 1278 rule->filter.vlan_tci_mask == ntohs(VLAN_TCI_FULL_MASK)) || 1279 (rule->filter.match_flags & (rule->filter.match_flags - 1))) 1280 rule->flex = true; 1281 else 1282 rule->flex = false; 1283 } 1284 1285 /** 1286 * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid 1287 * @adapter: Pointer to adapter 1288 * @rule: Rule under evaluation 1289 * 1290 * The driver doesn't support rules with multiple matches so if more than 1291 * one bit in filter flags is set, @rule is considered invalid. 1292 * 1293 * Also, if there is already another rule with the same filter in a different 1294 * location, @rule is considered invalid. 1295 * 1296 * Context: Expects adapter->nfc_rule_lock to be held by caller. 1297 * 1298 * Return: 0 in case of success, negative errno code otherwise. 1299 */ 1300 static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter, 1301 struct igc_nfc_rule *rule) 1302 { 1303 struct net_device *dev = adapter->netdev; 1304 u8 flags = rule->filter.match_flags; 1305 struct igc_nfc_rule *tmp; 1306 1307 if (!flags) { 1308 netdev_dbg(dev, "Rule with no match\n"); 1309 return -EINVAL; 1310 } 1311 1312 list_for_each_entry(tmp, &adapter->nfc_rule_list, list) { 1313 if (!memcmp(&rule->filter, &tmp->filter, 1314 sizeof(rule->filter)) && 1315 tmp->location != rule->location) { 1316 netdev_dbg(dev, "Rule already exists\n"); 1317 return -EEXIST; 1318 } 1319 } 1320 1321 return 0; 1322 } 1323 1324 static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter, 1325 struct ethtool_rxnfc *cmd) 1326 { 1327 struct net_device *netdev = adapter->netdev; 1328 struct ethtool_rx_flow_spec *fsp = 1329 (struct ethtool_rx_flow_spec *)&cmd->fs; 1330 struct igc_nfc_rule *rule, *old_rule; 1331 int err; 1332 1333 if (!(netdev->hw_features & NETIF_F_NTUPLE)) { 1334 netdev_dbg(netdev, "N-tuple filters disabled\n"); 1335 return -EOPNOTSUPP; 1336 } 1337 1338 if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) { 1339 netdev_dbg(netdev, "Only ethernet flow type is supported\n"); 1340 return -EOPNOTSUPP; 1341 } 1342 1343 if (fsp->ring_cookie >= adapter->num_rx_queues) { 1344 netdev_dbg(netdev, "Invalid action\n"); 1345 return -EINVAL; 1346 } 1347 1348 /* There are two ways to match the VLAN TCI: 1349 * 1. Match on PCP field and use vlan prio filter for it 1350 * 2. Match on complete TCI field and use flex filter for it 1351 */ 1352 if ((fsp->flow_type & FLOW_EXT) && 1353 fsp->m_ext.vlan_tci && 1354 fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK) && 1355 fsp->m_ext.vlan_tci != VLAN_TCI_FULL_MASK) { 1356 netdev_dbg(netdev, "VLAN mask not supported\n"); 1357 return -EOPNOTSUPP; 1358 } 1359 1360 /* VLAN EtherType can only be matched by full mask. */ 1361 if ((fsp->flow_type & FLOW_EXT) && 1362 fsp->m_ext.vlan_etype && 1363 fsp->m_ext.vlan_etype != ETHER_TYPE_FULL_MASK) { 1364 netdev_dbg(netdev, "VLAN EtherType mask not supported\n"); 1365 return -EOPNOTSUPP; 1366 } 1367 1368 if (fsp->location >= IGC_MAX_RXNFC_RULES) { 1369 netdev_dbg(netdev, "Invalid location\n"); 1370 return -EINVAL; 1371 } 1372 1373 rule = kzalloc(sizeof(*rule), GFP_KERNEL); 1374 if (!rule) 1375 return -ENOMEM; 1376 1377 igc_ethtool_init_nfc_rule(rule, fsp); 1378 1379 mutex_lock(&adapter->nfc_rule_lock); 1380 1381 err = igc_ethtool_check_nfc_rule(adapter, rule); 1382 if (err) 1383 goto err; 1384 1385 old_rule = igc_get_nfc_rule(adapter, fsp->location); 1386 if (old_rule) 1387 igc_del_nfc_rule(adapter, old_rule); 1388 1389 err = igc_add_nfc_rule(adapter, rule); 1390 if (err) 1391 goto err; 1392 1393 mutex_unlock(&adapter->nfc_rule_lock); 1394 return 0; 1395 1396 err: 1397 mutex_unlock(&adapter->nfc_rule_lock); 1398 kfree(rule); 1399 return err; 1400 } 1401 1402 static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter, 1403 struct ethtool_rxnfc *cmd) 1404 { 1405 struct ethtool_rx_flow_spec *fsp = 1406 (struct ethtool_rx_flow_spec *)&cmd->fs; 1407 struct igc_nfc_rule *rule; 1408 1409 mutex_lock(&adapter->nfc_rule_lock); 1410 1411 rule = igc_get_nfc_rule(adapter, fsp->location); 1412 if (!rule) { 1413 mutex_unlock(&adapter->nfc_rule_lock); 1414 return -EINVAL; 1415 } 1416 1417 igc_del_nfc_rule(adapter, rule); 1418 1419 mutex_unlock(&adapter->nfc_rule_lock); 1420 return 0; 1421 } 1422 1423 static int igc_ethtool_set_rxnfc(struct net_device *dev, 1424 struct ethtool_rxnfc *cmd) 1425 { 1426 struct igc_adapter *adapter = netdev_priv(dev); 1427 1428 switch (cmd->cmd) { 1429 case ETHTOOL_SRXFH: 1430 return igc_ethtool_set_rss_hash_opt(adapter, cmd); 1431 case ETHTOOL_SRXCLSRLINS: 1432 return igc_ethtool_add_nfc_rule(adapter, cmd); 1433 case ETHTOOL_SRXCLSRLDEL: 1434 return igc_ethtool_del_nfc_rule(adapter, cmd); 1435 default: 1436 return -EOPNOTSUPP; 1437 } 1438 } 1439 1440 void igc_write_rss_indir_tbl(struct igc_adapter *adapter) 1441 { 1442 struct igc_hw *hw = &adapter->hw; 1443 u32 reg = IGC_RETA(0); 1444 u32 shift = 0; 1445 int i = 0; 1446 1447 while (i < IGC_RETA_SIZE) { 1448 u32 val = 0; 1449 int j; 1450 1451 for (j = 3; j >= 0; j--) { 1452 val <<= 8; 1453 val |= adapter->rss_indir_tbl[i + j]; 1454 } 1455 1456 wr32(reg, val << shift); 1457 reg += 4; 1458 i += 4; 1459 } 1460 } 1461 1462 static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev) 1463 { 1464 return IGC_RETA_SIZE; 1465 } 1466 1467 static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 1468 u8 *hfunc) 1469 { 1470 struct igc_adapter *adapter = netdev_priv(netdev); 1471 int i; 1472 1473 if (hfunc) 1474 *hfunc = ETH_RSS_HASH_TOP; 1475 if (!indir) 1476 return 0; 1477 for (i = 0; i < IGC_RETA_SIZE; i++) 1478 indir[i] = adapter->rss_indir_tbl[i]; 1479 1480 return 0; 1481 } 1482 1483 static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir, 1484 const u8 *key, const u8 hfunc) 1485 { 1486 struct igc_adapter *adapter = netdev_priv(netdev); 1487 u32 num_queues; 1488 int i; 1489 1490 /* We do not allow change in unsupported parameters */ 1491 if (key || 1492 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) 1493 return -EOPNOTSUPP; 1494 if (!indir) 1495 return 0; 1496 1497 num_queues = adapter->rss_queues; 1498 1499 /* Verify user input. */ 1500 for (i = 0; i < IGC_RETA_SIZE; i++) 1501 if (indir[i] >= num_queues) 1502 return -EINVAL; 1503 1504 for (i = 0; i < IGC_RETA_SIZE; i++) 1505 adapter->rss_indir_tbl[i] = indir[i]; 1506 1507 igc_write_rss_indir_tbl(adapter); 1508 1509 return 0; 1510 } 1511 1512 static void igc_ethtool_get_channels(struct net_device *netdev, 1513 struct ethtool_channels *ch) 1514 { 1515 struct igc_adapter *adapter = netdev_priv(netdev); 1516 1517 /* Report maximum channels */ 1518 ch->max_combined = igc_get_max_rss_queues(adapter); 1519 1520 /* Report info for other vector */ 1521 if (adapter->flags & IGC_FLAG_HAS_MSIX) { 1522 ch->max_other = NON_Q_VECTORS; 1523 ch->other_count = NON_Q_VECTORS; 1524 } 1525 1526 ch->combined_count = adapter->rss_queues; 1527 } 1528 1529 static int igc_ethtool_set_channels(struct net_device *netdev, 1530 struct ethtool_channels *ch) 1531 { 1532 struct igc_adapter *adapter = netdev_priv(netdev); 1533 unsigned int count = ch->combined_count; 1534 unsigned int max_combined = 0; 1535 1536 /* Verify they are not requesting separate vectors */ 1537 if (!count || ch->rx_count || ch->tx_count) 1538 return -EINVAL; 1539 1540 /* Verify other_count is valid and has not been changed */ 1541 if (ch->other_count != NON_Q_VECTORS) 1542 return -EINVAL; 1543 1544 /* Verify the number of channels doesn't exceed hw limits */ 1545 max_combined = igc_get_max_rss_queues(adapter); 1546 if (count > max_combined) 1547 return -EINVAL; 1548 1549 if (count != adapter->rss_queues) { 1550 adapter->rss_queues = count; 1551 igc_set_flag_queue_pairs(adapter, max_combined); 1552 1553 /* Hardware has to reinitialize queues and interrupts to 1554 * match the new configuration. 1555 */ 1556 return igc_reinit_queues(adapter); 1557 } 1558 1559 return 0; 1560 } 1561 1562 static int igc_ethtool_get_ts_info(struct net_device *dev, 1563 struct ethtool_ts_info *info) 1564 { 1565 struct igc_adapter *adapter = netdev_priv(dev); 1566 1567 if (adapter->ptp_clock) 1568 info->phc_index = ptp_clock_index(adapter->ptp_clock); 1569 else 1570 info->phc_index = -1; 1571 1572 switch (adapter->hw.mac.type) { 1573 case igc_i225: 1574 info->so_timestamping = 1575 SOF_TIMESTAMPING_TX_SOFTWARE | 1576 SOF_TIMESTAMPING_RX_SOFTWARE | 1577 SOF_TIMESTAMPING_SOFTWARE | 1578 SOF_TIMESTAMPING_TX_HARDWARE | 1579 SOF_TIMESTAMPING_RX_HARDWARE | 1580 SOF_TIMESTAMPING_RAW_HARDWARE; 1581 1582 info->tx_types = 1583 BIT(HWTSTAMP_TX_OFF) | 1584 BIT(HWTSTAMP_TX_ON); 1585 1586 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE); 1587 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL); 1588 1589 return 0; 1590 default: 1591 return -EOPNOTSUPP; 1592 } 1593 } 1594 1595 static u32 igc_ethtool_get_priv_flags(struct net_device *netdev) 1596 { 1597 struct igc_adapter *adapter = netdev_priv(netdev); 1598 u32 priv_flags = 0; 1599 1600 if (adapter->flags & IGC_FLAG_RX_LEGACY) 1601 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX; 1602 1603 return priv_flags; 1604 } 1605 1606 static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags) 1607 { 1608 struct igc_adapter *adapter = netdev_priv(netdev); 1609 unsigned int flags = adapter->flags; 1610 1611 flags &= ~IGC_FLAG_RX_LEGACY; 1612 if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX) 1613 flags |= IGC_FLAG_RX_LEGACY; 1614 1615 if (flags != adapter->flags) { 1616 adapter->flags = flags; 1617 1618 /* reset interface to repopulate queues */ 1619 if (netif_running(netdev)) 1620 igc_reinit_locked(adapter); 1621 } 1622 1623 return 0; 1624 } 1625 1626 static int igc_ethtool_get_eee(struct net_device *netdev, 1627 struct ethtool_eee *edata) 1628 { 1629 struct igc_adapter *adapter = netdev_priv(netdev); 1630 struct igc_hw *hw = &adapter->hw; 1631 u32 eeer; 1632 1633 if (hw->dev_spec._base.eee_enable) 1634 edata->advertised = 1635 mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert); 1636 1637 *edata = adapter->eee; 1638 edata->supported = SUPPORTED_Autoneg; 1639 1640 eeer = rd32(IGC_EEER); 1641 1642 /* EEE status on negotiated link */ 1643 if (eeer & IGC_EEER_EEE_NEG) 1644 edata->eee_active = true; 1645 1646 if (eeer & IGC_EEER_TX_LPI_EN) 1647 edata->tx_lpi_enabled = true; 1648 1649 edata->eee_enabled = hw->dev_spec._base.eee_enable; 1650 1651 edata->advertised = SUPPORTED_Autoneg; 1652 edata->lp_advertised = SUPPORTED_Autoneg; 1653 1654 /* Report correct negotiated EEE status for devices that 1655 * wrongly report EEE at half-duplex 1656 */ 1657 if (adapter->link_duplex == HALF_DUPLEX) { 1658 edata->eee_enabled = false; 1659 edata->eee_active = false; 1660 edata->tx_lpi_enabled = false; 1661 edata->advertised &= ~edata->advertised; 1662 } 1663 1664 return 0; 1665 } 1666 1667 static int igc_ethtool_set_eee(struct net_device *netdev, 1668 struct ethtool_eee *edata) 1669 { 1670 struct igc_adapter *adapter = netdev_priv(netdev); 1671 struct igc_hw *hw = &adapter->hw; 1672 struct ethtool_eee eee_curr; 1673 s32 ret_val; 1674 1675 memset(&eee_curr, 0, sizeof(struct ethtool_eee)); 1676 1677 ret_val = igc_ethtool_get_eee(netdev, &eee_curr); 1678 if (ret_val) { 1679 netdev_err(netdev, 1680 "Problem setting EEE advertisement options\n"); 1681 return -EINVAL; 1682 } 1683 1684 if (eee_curr.eee_enabled) { 1685 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) { 1686 netdev_err(netdev, 1687 "Setting EEE tx-lpi is not supported\n"); 1688 return -EINVAL; 1689 } 1690 1691 /* Tx LPI timer is not implemented currently */ 1692 if (edata->tx_lpi_timer) { 1693 netdev_err(netdev, 1694 "Setting EEE Tx LPI timer is not supported\n"); 1695 return -EINVAL; 1696 } 1697 } else if (!edata->eee_enabled) { 1698 netdev_err(netdev, 1699 "Setting EEE options are not supported with EEE disabled\n"); 1700 return -EINVAL; 1701 } 1702 1703 adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised); 1704 if (hw->dev_spec._base.eee_enable != edata->eee_enabled) { 1705 hw->dev_spec._base.eee_enable = edata->eee_enabled; 1706 adapter->flags |= IGC_FLAG_EEE; 1707 1708 /* reset link */ 1709 if (netif_running(netdev)) 1710 igc_reinit_locked(adapter); 1711 else 1712 igc_reset(adapter); 1713 } 1714 1715 return 0; 1716 } 1717 1718 static int igc_ethtool_begin(struct net_device *netdev) 1719 { 1720 struct igc_adapter *adapter = netdev_priv(netdev); 1721 1722 pm_runtime_get_sync(&adapter->pdev->dev); 1723 return 0; 1724 } 1725 1726 static void igc_ethtool_complete(struct net_device *netdev) 1727 { 1728 struct igc_adapter *adapter = netdev_priv(netdev); 1729 1730 pm_runtime_put(&adapter->pdev->dev); 1731 } 1732 1733 static int igc_ethtool_get_link_ksettings(struct net_device *netdev, 1734 struct ethtool_link_ksettings *cmd) 1735 { 1736 struct igc_adapter *adapter = netdev_priv(netdev); 1737 struct igc_hw *hw = &adapter->hw; 1738 u32 status; 1739 u32 speed; 1740 1741 ethtool_link_ksettings_zero_link_mode(cmd, supported); 1742 ethtool_link_ksettings_zero_link_mode(cmd, advertising); 1743 1744 /* supported link modes */ 1745 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half); 1746 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full); 1747 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half); 1748 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full); 1749 ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full); 1750 ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full); 1751 1752 /* twisted pair */ 1753 cmd->base.port = PORT_TP; 1754 cmd->base.phy_address = hw->phy.addr; 1755 ethtool_link_ksettings_add_link_mode(cmd, supported, TP); 1756 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); 1757 1758 /* advertising link modes */ 1759 if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF) 1760 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half); 1761 if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL) 1762 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full); 1763 if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF) 1764 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half); 1765 if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL) 1766 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full); 1767 if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL) 1768 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full); 1769 if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL) 1770 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full); 1771 1772 /* set autoneg settings */ 1773 if (hw->mac.autoneg == 1) { 1774 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 1775 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1776 Autoneg); 1777 } 1778 1779 /* Set pause flow control settings */ 1780 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); 1781 1782 switch (hw->fc.requested_mode) { 1783 case igc_fc_full: 1784 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1785 break; 1786 case igc_fc_rx_pause: 1787 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1788 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1789 Asym_Pause); 1790 break; 1791 case igc_fc_tx_pause: 1792 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1793 Asym_Pause); 1794 break; 1795 default: 1796 break; 1797 } 1798 1799 status = pm_runtime_suspended(&adapter->pdev->dev) ? 1800 0 : rd32(IGC_STATUS); 1801 1802 if (status & IGC_STATUS_LU) { 1803 if (status & IGC_STATUS_SPEED_1000) { 1804 /* For I225, STATUS will indicate 1G speed in both 1805 * 1 Gbps and 2.5 Gbps link modes. 1806 * An additional bit is used 1807 * to differentiate between 1 Gbps and 2.5 Gbps. 1808 */ 1809 if (hw->mac.type == igc_i225 && 1810 (status & IGC_STATUS_SPEED_2500)) { 1811 speed = SPEED_2500; 1812 } else { 1813 speed = SPEED_1000; 1814 } 1815 } else if (status & IGC_STATUS_SPEED_100) { 1816 speed = SPEED_100; 1817 } else { 1818 speed = SPEED_10; 1819 } 1820 if ((status & IGC_STATUS_FD) || 1821 hw->phy.media_type != igc_media_type_copper) 1822 cmd->base.duplex = DUPLEX_FULL; 1823 else 1824 cmd->base.duplex = DUPLEX_HALF; 1825 } else { 1826 speed = SPEED_UNKNOWN; 1827 cmd->base.duplex = DUPLEX_UNKNOWN; 1828 } 1829 cmd->base.speed = speed; 1830 if (hw->mac.autoneg) 1831 cmd->base.autoneg = AUTONEG_ENABLE; 1832 else 1833 cmd->base.autoneg = AUTONEG_DISABLE; 1834 1835 /* MDI-X => 2; MDI =>1; Invalid =>0 */ 1836 if (hw->phy.media_type == igc_media_type_copper) 1837 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X : 1838 ETH_TP_MDI; 1839 else 1840 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID; 1841 1842 if (hw->phy.mdix == AUTO_ALL_MODES) 1843 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; 1844 else 1845 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix; 1846 1847 return 0; 1848 } 1849 1850 static int 1851 igc_ethtool_set_link_ksettings(struct net_device *netdev, 1852 const struct ethtool_link_ksettings *cmd) 1853 { 1854 struct igc_adapter *adapter = netdev_priv(netdev); 1855 struct net_device *dev = adapter->netdev; 1856 struct igc_hw *hw = &adapter->hw; 1857 u16 advertised = 0; 1858 1859 /* When adapter in resetting mode, autoneg/speed/duplex 1860 * cannot be changed 1861 */ 1862 if (igc_check_reset_block(hw)) { 1863 netdev_err(dev, "Cannot change link characteristics when reset is active\n"); 1864 return -EINVAL; 1865 } 1866 1867 /* MDI setting is only allowed when autoneg enabled because 1868 * some hardware doesn't allow MDI setting when speed or 1869 * duplex is forced. 1870 */ 1871 if (cmd->base.eth_tp_mdix_ctrl) { 1872 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO && 1873 cmd->base.autoneg != AUTONEG_ENABLE) { 1874 netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n"); 1875 return -EINVAL; 1876 } 1877 } 1878 1879 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 1880 usleep_range(1000, 2000); 1881 1882 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1883 2500baseT_Full)) 1884 advertised |= ADVERTISE_2500_FULL; 1885 1886 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1887 1000baseT_Full)) 1888 advertised |= ADVERTISE_1000_FULL; 1889 1890 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1891 100baseT_Full)) 1892 advertised |= ADVERTISE_100_FULL; 1893 1894 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1895 100baseT_Half)) 1896 advertised |= ADVERTISE_100_HALF; 1897 1898 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1899 10baseT_Full)) 1900 advertised |= ADVERTISE_10_FULL; 1901 1902 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1903 10baseT_Half)) 1904 advertised |= ADVERTISE_10_HALF; 1905 1906 if (cmd->base.autoneg == AUTONEG_ENABLE) { 1907 hw->mac.autoneg = 1; 1908 hw->phy.autoneg_advertised = advertised; 1909 if (adapter->fc_autoneg) 1910 hw->fc.requested_mode = igc_fc_default; 1911 } else { 1912 netdev_info(dev, "Force mode currently not supported\n"); 1913 } 1914 1915 /* MDI-X => 2; MDI => 1; Auto => 3 */ 1916 if (cmd->base.eth_tp_mdix_ctrl) { 1917 /* fix up the value for auto (3 => 0) as zero is mapped 1918 * internally to auto 1919 */ 1920 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO) 1921 hw->phy.mdix = AUTO_ALL_MODES; 1922 else 1923 hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl; 1924 } 1925 1926 /* reset the link */ 1927 if (netif_running(adapter->netdev)) { 1928 igc_down(adapter); 1929 igc_up(adapter); 1930 } else { 1931 igc_reset(adapter); 1932 } 1933 1934 clear_bit(__IGC_RESETTING, &adapter->state); 1935 1936 return 0; 1937 } 1938 1939 static void igc_ethtool_diag_test(struct net_device *netdev, 1940 struct ethtool_test *eth_test, u64 *data) 1941 { 1942 struct igc_adapter *adapter = netdev_priv(netdev); 1943 bool if_running = netif_running(netdev); 1944 1945 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 1946 netdev_info(adapter->netdev, "Offline testing starting"); 1947 set_bit(__IGC_TESTING, &adapter->state); 1948 1949 /* Link test performed before hardware reset so autoneg doesn't 1950 * interfere with test result 1951 */ 1952 if (!igc_link_test(adapter, &data[TEST_LINK])) 1953 eth_test->flags |= ETH_TEST_FL_FAILED; 1954 1955 if (if_running) 1956 igc_close(netdev); 1957 else 1958 igc_reset(adapter); 1959 1960 netdev_info(adapter->netdev, "Register testing starting"); 1961 if (!igc_reg_test(adapter, &data[TEST_REG])) 1962 eth_test->flags |= ETH_TEST_FL_FAILED; 1963 1964 igc_reset(adapter); 1965 1966 netdev_info(adapter->netdev, "EEPROM testing starting"); 1967 if (!igc_eeprom_test(adapter, &data[TEST_EEP])) 1968 eth_test->flags |= ETH_TEST_FL_FAILED; 1969 1970 igc_reset(adapter); 1971 1972 /* loopback and interrupt tests 1973 * will be implemented in the future 1974 */ 1975 data[TEST_LOOP] = 0; 1976 data[TEST_IRQ] = 0; 1977 1978 clear_bit(__IGC_TESTING, &adapter->state); 1979 if (if_running) 1980 igc_open(netdev); 1981 } else { 1982 netdev_info(adapter->netdev, "Online testing starting"); 1983 1984 /* register, eeprom, intr and loopback tests not run online */ 1985 data[TEST_REG] = 0; 1986 data[TEST_EEP] = 0; 1987 data[TEST_IRQ] = 0; 1988 data[TEST_LOOP] = 0; 1989 1990 if (!igc_link_test(adapter, &data[TEST_LINK])) 1991 eth_test->flags |= ETH_TEST_FL_FAILED; 1992 } 1993 1994 msleep_interruptible(4 * 1000); 1995 } 1996 1997 static const struct ethtool_ops igc_ethtool_ops = { 1998 .supported_coalesce_params = ETHTOOL_COALESCE_USECS, 1999 .get_drvinfo = igc_ethtool_get_drvinfo, 2000 .get_regs_len = igc_ethtool_get_regs_len, 2001 .get_regs = igc_ethtool_get_regs, 2002 .get_wol = igc_ethtool_get_wol, 2003 .set_wol = igc_ethtool_set_wol, 2004 .get_msglevel = igc_ethtool_get_msglevel, 2005 .set_msglevel = igc_ethtool_set_msglevel, 2006 .nway_reset = igc_ethtool_nway_reset, 2007 .get_link = igc_ethtool_get_link, 2008 .get_eeprom_len = igc_ethtool_get_eeprom_len, 2009 .get_eeprom = igc_ethtool_get_eeprom, 2010 .set_eeprom = igc_ethtool_set_eeprom, 2011 .get_ringparam = igc_ethtool_get_ringparam, 2012 .set_ringparam = igc_ethtool_set_ringparam, 2013 .get_pauseparam = igc_ethtool_get_pauseparam, 2014 .set_pauseparam = igc_ethtool_set_pauseparam, 2015 .get_strings = igc_ethtool_get_strings, 2016 .get_sset_count = igc_ethtool_get_sset_count, 2017 .get_ethtool_stats = igc_ethtool_get_stats, 2018 .get_coalesce = igc_ethtool_get_coalesce, 2019 .set_coalesce = igc_ethtool_set_coalesce, 2020 .get_rxnfc = igc_ethtool_get_rxnfc, 2021 .set_rxnfc = igc_ethtool_set_rxnfc, 2022 .get_rxfh_indir_size = igc_ethtool_get_rxfh_indir_size, 2023 .get_rxfh = igc_ethtool_get_rxfh, 2024 .set_rxfh = igc_ethtool_set_rxfh, 2025 .get_ts_info = igc_ethtool_get_ts_info, 2026 .get_channels = igc_ethtool_get_channels, 2027 .set_channels = igc_ethtool_set_channels, 2028 .get_priv_flags = igc_ethtool_get_priv_flags, 2029 .set_priv_flags = igc_ethtool_set_priv_flags, 2030 .get_eee = igc_ethtool_get_eee, 2031 .set_eee = igc_ethtool_set_eee, 2032 .begin = igc_ethtool_begin, 2033 .complete = igc_ethtool_complete, 2034 .get_link_ksettings = igc_ethtool_get_link_ksettings, 2035 .set_link_ksettings = igc_ethtool_set_link_ksettings, 2036 .self_test = igc_ethtool_diag_test, 2037 }; 2038 2039 void igc_ethtool_set_ops(struct net_device *netdev) 2040 { 2041 netdev->ethtool_ops = &igc_ethtool_ops; 2042 } 2043