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, igc_gstrings_stats[i].stat_string); 777 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++) 778 ethtool_sprintf(&p, 779 igc_gstrings_net_stats[i].stat_string); 780 for (i = 0; i < adapter->num_tx_queues; i++) { 781 ethtool_sprintf(&p, "tx_queue_%u_packets", i); 782 ethtool_sprintf(&p, "tx_queue_%u_bytes", i); 783 ethtool_sprintf(&p, "tx_queue_%u_restart", i); 784 } 785 for (i = 0; i < adapter->num_rx_queues; i++) { 786 ethtool_sprintf(&p, "rx_queue_%u_packets", i); 787 ethtool_sprintf(&p, "rx_queue_%u_bytes", i); 788 ethtool_sprintf(&p, "rx_queue_%u_drops", i); 789 ethtool_sprintf(&p, "rx_queue_%u_csum_err", i); 790 ethtool_sprintf(&p, "rx_queue_%u_alloc_failed", i); 791 } 792 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */ 793 break; 794 case ETH_SS_PRIV_FLAGS: 795 memcpy(data, igc_priv_flags_strings, 796 IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN); 797 break; 798 } 799 } 800 801 static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset) 802 { 803 switch (sset) { 804 case ETH_SS_STATS: 805 return IGC_STATS_LEN; 806 case ETH_SS_TEST: 807 return IGC_TEST_LEN; 808 case ETH_SS_PRIV_FLAGS: 809 return IGC_PRIV_FLAGS_STR_LEN; 810 default: 811 return -ENOTSUPP; 812 } 813 } 814 815 static void igc_ethtool_get_stats(struct net_device *netdev, 816 struct ethtool_stats *stats, u64 *data) 817 { 818 struct igc_adapter *adapter = netdev_priv(netdev); 819 struct rtnl_link_stats64 *net_stats = &adapter->stats64; 820 unsigned int start; 821 struct igc_ring *ring; 822 int i, j; 823 char *p; 824 825 spin_lock(&adapter->stats64_lock); 826 igc_update_stats(adapter); 827 828 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) { 829 p = (char *)adapter + igc_gstrings_stats[i].stat_offset; 830 data[i] = (igc_gstrings_stats[i].sizeof_stat == 831 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 832 } 833 for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) { 834 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset; 835 data[i] = (igc_gstrings_net_stats[j].sizeof_stat == 836 sizeof(u64)) ? *(u64 *)p : *(u32 *)p; 837 } 838 for (j = 0; j < adapter->num_tx_queues; j++) { 839 u64 restart2; 840 841 ring = adapter->tx_ring[j]; 842 do { 843 start = u64_stats_fetch_begin(&ring->tx_syncp); 844 data[i] = ring->tx_stats.packets; 845 data[i + 1] = ring->tx_stats.bytes; 846 data[i + 2] = ring->tx_stats.restart_queue; 847 } while (u64_stats_fetch_retry(&ring->tx_syncp, start)); 848 do { 849 start = u64_stats_fetch_begin(&ring->tx_syncp2); 850 restart2 = ring->tx_stats.restart_queue2; 851 } while (u64_stats_fetch_retry(&ring->tx_syncp2, start)); 852 data[i + 2] += restart2; 853 854 i += IGC_TX_QUEUE_STATS_LEN; 855 } 856 for (j = 0; j < adapter->num_rx_queues; j++) { 857 ring = adapter->rx_ring[j]; 858 do { 859 start = u64_stats_fetch_begin(&ring->rx_syncp); 860 data[i] = ring->rx_stats.packets; 861 data[i + 1] = ring->rx_stats.bytes; 862 data[i + 2] = ring->rx_stats.drops; 863 data[i + 3] = ring->rx_stats.csum_err; 864 data[i + 4] = ring->rx_stats.alloc_failed; 865 } while (u64_stats_fetch_retry(&ring->rx_syncp, start)); 866 i += IGC_RX_QUEUE_STATS_LEN; 867 } 868 spin_unlock(&adapter->stats64_lock); 869 } 870 871 static int igc_ethtool_get_previous_rx_coalesce(struct igc_adapter *adapter) 872 { 873 return (adapter->rx_itr_setting <= 3) ? 874 adapter->rx_itr_setting : adapter->rx_itr_setting >> 2; 875 } 876 877 static int igc_ethtool_get_previous_tx_coalesce(struct igc_adapter *adapter) 878 { 879 return (adapter->tx_itr_setting <= 3) ? 880 adapter->tx_itr_setting : adapter->tx_itr_setting >> 2; 881 } 882 883 static int igc_ethtool_get_coalesce(struct net_device *netdev, 884 struct ethtool_coalesce *ec, 885 struct kernel_ethtool_coalesce *kernel_coal, 886 struct netlink_ext_ack *extack) 887 { 888 struct igc_adapter *adapter = netdev_priv(netdev); 889 890 ec->rx_coalesce_usecs = igc_ethtool_get_previous_rx_coalesce(adapter); 891 ec->tx_coalesce_usecs = igc_ethtool_get_previous_tx_coalesce(adapter); 892 893 return 0; 894 } 895 896 static int igc_ethtool_set_coalesce(struct net_device *netdev, 897 struct ethtool_coalesce *ec, 898 struct kernel_ethtool_coalesce *kernel_coal, 899 struct netlink_ext_ack *extack) 900 { 901 struct igc_adapter *adapter = netdev_priv(netdev); 902 int i; 903 904 if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS || 905 (ec->rx_coalesce_usecs > 3 && 906 ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) || 907 ec->rx_coalesce_usecs == 2) 908 return -EINVAL; 909 910 if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS || 911 (ec->tx_coalesce_usecs > 3 && 912 ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) || 913 ec->tx_coalesce_usecs == 2) 914 return -EINVAL; 915 916 if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) && 917 ec->tx_coalesce_usecs != igc_ethtool_get_previous_tx_coalesce(adapter)) { 918 NL_SET_ERR_MSG_MOD(extack, 919 "Queue Pair mode enabled, both Rx and Tx coalescing controlled by rx-usecs"); 920 return -EINVAL; 921 } 922 923 /* If ITR is disabled, disable DMAC */ 924 if (ec->rx_coalesce_usecs == 0) { 925 if (adapter->flags & IGC_FLAG_DMAC) 926 adapter->flags &= ~IGC_FLAG_DMAC; 927 } 928 929 /* convert to rate of irq's per second */ 930 if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3) 931 adapter->rx_itr_setting = ec->rx_coalesce_usecs; 932 else 933 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2; 934 935 /* convert to rate of irq's per second */ 936 if (adapter->flags & IGC_FLAG_QUEUE_PAIRS) 937 adapter->tx_itr_setting = adapter->rx_itr_setting; 938 else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3) 939 adapter->tx_itr_setting = ec->tx_coalesce_usecs; 940 else 941 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2; 942 943 for (i = 0; i < adapter->num_q_vectors; i++) { 944 struct igc_q_vector *q_vector = adapter->q_vector[i]; 945 946 q_vector->tx.work_limit = adapter->tx_work_limit; 947 if (q_vector->rx.ring) 948 q_vector->itr_val = adapter->rx_itr_setting; 949 else 950 q_vector->itr_val = adapter->tx_itr_setting; 951 if (q_vector->itr_val && q_vector->itr_val <= 3) 952 q_vector->itr_val = IGC_START_ITR; 953 q_vector->set_itr = 1; 954 } 955 956 return 0; 957 } 958 959 #define ETHER_TYPE_FULL_MASK ((__force __be16)~0) 960 static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter, 961 struct ethtool_rxnfc *cmd) 962 { 963 struct ethtool_rx_flow_spec *fsp = &cmd->fs; 964 struct igc_nfc_rule *rule = NULL; 965 966 cmd->data = IGC_MAX_RXNFC_RULES; 967 968 mutex_lock(&adapter->nfc_rule_lock); 969 970 rule = igc_get_nfc_rule(adapter, fsp->location); 971 if (!rule) 972 goto out; 973 974 fsp->flow_type = ETHER_FLOW; 975 fsp->ring_cookie = rule->action; 976 977 if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) { 978 fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype); 979 fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK; 980 } 981 982 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) { 983 fsp->flow_type |= FLOW_EXT; 984 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci); 985 fsp->m_ext.vlan_tci = htons(VLAN_PRIO_MASK); 986 } 987 988 if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) { 989 ether_addr_copy(fsp->h_u.ether_spec.h_dest, 990 rule->filter.dst_addr); 991 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest); 992 } 993 994 if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) { 995 ether_addr_copy(fsp->h_u.ether_spec.h_source, 996 rule->filter.src_addr); 997 eth_broadcast_addr(fsp->m_u.ether_spec.h_source); 998 } 999 1000 if (rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) { 1001 fsp->flow_type |= FLOW_EXT; 1002 memcpy(fsp->h_ext.data, rule->filter.user_data, sizeof(fsp->h_ext.data)); 1003 memcpy(fsp->m_ext.data, rule->filter.user_mask, sizeof(fsp->m_ext.data)); 1004 } 1005 1006 mutex_unlock(&adapter->nfc_rule_lock); 1007 return 0; 1008 1009 out: 1010 mutex_unlock(&adapter->nfc_rule_lock); 1011 return -EINVAL; 1012 } 1013 1014 static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter, 1015 struct ethtool_rxnfc *cmd, 1016 u32 *rule_locs) 1017 { 1018 struct igc_nfc_rule *rule; 1019 int cnt = 0; 1020 1021 cmd->data = IGC_MAX_RXNFC_RULES; 1022 1023 mutex_lock(&adapter->nfc_rule_lock); 1024 1025 list_for_each_entry(rule, &adapter->nfc_rule_list, list) { 1026 if (cnt == cmd->rule_cnt) { 1027 mutex_unlock(&adapter->nfc_rule_lock); 1028 return -EMSGSIZE; 1029 } 1030 rule_locs[cnt] = rule->location; 1031 cnt++; 1032 } 1033 1034 mutex_unlock(&adapter->nfc_rule_lock); 1035 1036 cmd->rule_cnt = cnt; 1037 1038 return 0; 1039 } 1040 1041 static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter, 1042 struct ethtool_rxnfc *cmd) 1043 { 1044 cmd->data = 0; 1045 1046 /* Report default options for RSS on igc */ 1047 switch (cmd->flow_type) { 1048 case TCP_V4_FLOW: 1049 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1050 fallthrough; 1051 case UDP_V4_FLOW: 1052 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 1053 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1054 fallthrough; 1055 case SCTP_V4_FLOW: 1056 case AH_ESP_V4_FLOW: 1057 case AH_V4_FLOW: 1058 case ESP_V4_FLOW: 1059 case IPV4_FLOW: 1060 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1061 break; 1062 case TCP_V6_FLOW: 1063 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1064 fallthrough; 1065 case UDP_V6_FLOW: 1066 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 1067 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; 1068 fallthrough; 1069 case SCTP_V6_FLOW: 1070 case AH_ESP_V6_FLOW: 1071 case AH_V6_FLOW: 1072 case ESP_V6_FLOW: 1073 case IPV6_FLOW: 1074 cmd->data |= RXH_IP_SRC | RXH_IP_DST; 1075 break; 1076 default: 1077 return -EINVAL; 1078 } 1079 1080 return 0; 1081 } 1082 1083 static int igc_ethtool_get_rxnfc(struct net_device *dev, 1084 struct ethtool_rxnfc *cmd, u32 *rule_locs) 1085 { 1086 struct igc_adapter *adapter = netdev_priv(dev); 1087 1088 switch (cmd->cmd) { 1089 case ETHTOOL_GRXRINGS: 1090 cmd->data = adapter->num_rx_queues; 1091 return 0; 1092 case ETHTOOL_GRXCLSRLCNT: 1093 cmd->rule_cnt = adapter->nfc_rule_count; 1094 return 0; 1095 case ETHTOOL_GRXCLSRULE: 1096 return igc_ethtool_get_nfc_rule(adapter, cmd); 1097 case ETHTOOL_GRXCLSRLALL: 1098 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs); 1099 case ETHTOOL_GRXFH: 1100 return igc_ethtool_get_rss_hash_opts(adapter, cmd); 1101 default: 1102 return -EOPNOTSUPP; 1103 } 1104 } 1105 1106 #define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \ 1107 IGC_FLAG_RSS_FIELD_IPV6_UDP) 1108 static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter, 1109 struct ethtool_rxnfc *nfc) 1110 { 1111 u32 flags = adapter->flags; 1112 1113 /* RSS does not support anything other than hashing 1114 * to queues on src and dst IPs and ports 1115 */ 1116 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | 1117 RXH_L4_B_0_1 | RXH_L4_B_2_3)) 1118 return -EINVAL; 1119 1120 switch (nfc->flow_type) { 1121 case TCP_V4_FLOW: 1122 case TCP_V6_FLOW: 1123 if (!(nfc->data & RXH_IP_SRC) || 1124 !(nfc->data & RXH_IP_DST) || 1125 !(nfc->data & RXH_L4_B_0_1) || 1126 !(nfc->data & RXH_L4_B_2_3)) 1127 return -EINVAL; 1128 break; 1129 case UDP_V4_FLOW: 1130 if (!(nfc->data & RXH_IP_SRC) || 1131 !(nfc->data & RXH_IP_DST)) 1132 return -EINVAL; 1133 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1134 case 0: 1135 flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP; 1136 break; 1137 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1138 flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP; 1139 break; 1140 default: 1141 return -EINVAL; 1142 } 1143 break; 1144 case UDP_V6_FLOW: 1145 if (!(nfc->data & RXH_IP_SRC) || 1146 !(nfc->data & RXH_IP_DST)) 1147 return -EINVAL; 1148 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { 1149 case 0: 1150 flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP; 1151 break; 1152 case (RXH_L4_B_0_1 | RXH_L4_B_2_3): 1153 flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP; 1154 break; 1155 default: 1156 return -EINVAL; 1157 } 1158 break; 1159 case AH_ESP_V4_FLOW: 1160 case AH_V4_FLOW: 1161 case ESP_V4_FLOW: 1162 case SCTP_V4_FLOW: 1163 case AH_ESP_V6_FLOW: 1164 case AH_V6_FLOW: 1165 case ESP_V6_FLOW: 1166 case SCTP_V6_FLOW: 1167 if (!(nfc->data & RXH_IP_SRC) || 1168 !(nfc->data & RXH_IP_DST) || 1169 (nfc->data & RXH_L4_B_0_1) || 1170 (nfc->data & RXH_L4_B_2_3)) 1171 return -EINVAL; 1172 break; 1173 default: 1174 return -EINVAL; 1175 } 1176 1177 /* if we changed something we need to update flags */ 1178 if (flags != adapter->flags) { 1179 struct igc_hw *hw = &adapter->hw; 1180 u32 mrqc = rd32(IGC_MRQC); 1181 1182 if ((flags & UDP_RSS_FLAGS) && 1183 !(adapter->flags & UDP_RSS_FLAGS)) 1184 netdev_err(adapter->netdev, 1185 "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n"); 1186 1187 adapter->flags = flags; 1188 1189 /* Perform hash on these packet types */ 1190 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 | 1191 IGC_MRQC_RSS_FIELD_IPV4_TCP | 1192 IGC_MRQC_RSS_FIELD_IPV6 | 1193 IGC_MRQC_RSS_FIELD_IPV6_TCP; 1194 1195 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP | 1196 IGC_MRQC_RSS_FIELD_IPV6_UDP); 1197 1198 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) 1199 mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP; 1200 1201 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) 1202 mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP; 1203 1204 wr32(IGC_MRQC, mrqc); 1205 } 1206 1207 return 0; 1208 } 1209 1210 static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule, 1211 const struct ethtool_rx_flow_spec *fsp) 1212 { 1213 INIT_LIST_HEAD(&rule->list); 1214 1215 rule->action = fsp->ring_cookie; 1216 rule->location = fsp->location; 1217 1218 if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) { 1219 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci); 1220 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI; 1221 } 1222 1223 if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) { 1224 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto); 1225 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE; 1226 } 1227 1228 /* Both source and destination address filters only support the full 1229 * mask. 1230 */ 1231 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) { 1232 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR; 1233 ether_addr_copy(rule->filter.src_addr, 1234 fsp->h_u.ether_spec.h_source); 1235 } 1236 1237 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) { 1238 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR; 1239 ether_addr_copy(rule->filter.dst_addr, 1240 fsp->h_u.ether_spec.h_dest); 1241 } 1242 1243 /* VLAN etype matching */ 1244 if ((fsp->flow_type & FLOW_EXT) && fsp->h_ext.vlan_etype) { 1245 rule->filter.vlan_etype = fsp->h_ext.vlan_etype; 1246 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_ETYPE; 1247 } 1248 1249 /* Check for user defined data */ 1250 if ((fsp->flow_type & FLOW_EXT) && 1251 (fsp->h_ext.data[0] || fsp->h_ext.data[1])) { 1252 rule->filter.match_flags |= IGC_FILTER_FLAG_USER_DATA; 1253 memcpy(rule->filter.user_data, fsp->h_ext.data, sizeof(fsp->h_ext.data)); 1254 memcpy(rule->filter.user_mask, fsp->m_ext.data, sizeof(fsp->m_ext.data)); 1255 } 1256 1257 /* When multiple filter options or user data or vlan etype is set, use a 1258 * flex filter. 1259 */ 1260 if ((rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) || 1261 (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) || 1262 (rule->filter.match_flags & (rule->filter.match_flags - 1))) 1263 rule->flex = true; 1264 else 1265 rule->flex = false; 1266 } 1267 1268 /** 1269 * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid 1270 * @adapter: Pointer to adapter 1271 * @rule: Rule under evaluation 1272 * 1273 * The driver doesn't support rules with multiple matches so if more than 1274 * one bit in filter flags is set, @rule is considered invalid. 1275 * 1276 * Also, if there is already another rule with the same filter in a different 1277 * location, @rule is considered invalid. 1278 * 1279 * Context: Expects adapter->nfc_rule_lock to be held by caller. 1280 * 1281 * Return: 0 in case of success, negative errno code otherwise. 1282 */ 1283 static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter, 1284 struct igc_nfc_rule *rule) 1285 { 1286 struct net_device *dev = adapter->netdev; 1287 u8 flags = rule->filter.match_flags; 1288 struct igc_nfc_rule *tmp; 1289 1290 if (!flags) { 1291 netdev_dbg(dev, "Rule with no match\n"); 1292 return -EINVAL; 1293 } 1294 1295 list_for_each_entry(tmp, &adapter->nfc_rule_list, list) { 1296 if (!memcmp(&rule->filter, &tmp->filter, 1297 sizeof(rule->filter)) && 1298 tmp->location != rule->location) { 1299 netdev_dbg(dev, "Rule already exists\n"); 1300 return -EEXIST; 1301 } 1302 } 1303 1304 return 0; 1305 } 1306 1307 static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter, 1308 struct ethtool_rxnfc *cmd) 1309 { 1310 struct net_device *netdev = adapter->netdev; 1311 struct ethtool_rx_flow_spec *fsp = 1312 (struct ethtool_rx_flow_spec *)&cmd->fs; 1313 struct igc_nfc_rule *rule, *old_rule; 1314 int err; 1315 1316 if (!(netdev->hw_features & NETIF_F_NTUPLE)) { 1317 netdev_dbg(netdev, "N-tuple filters disabled\n"); 1318 return -EOPNOTSUPP; 1319 } 1320 1321 if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) { 1322 netdev_dbg(netdev, "Only ethernet flow type is supported\n"); 1323 return -EOPNOTSUPP; 1324 } 1325 1326 if (fsp->ring_cookie >= adapter->num_rx_queues) { 1327 netdev_dbg(netdev, "Invalid action\n"); 1328 return -EINVAL; 1329 } 1330 1331 if (fsp->location >= IGC_MAX_RXNFC_RULES) { 1332 netdev_dbg(netdev, "Invalid location\n"); 1333 return -EINVAL; 1334 } 1335 1336 rule = kzalloc(sizeof(*rule), GFP_KERNEL); 1337 if (!rule) 1338 return -ENOMEM; 1339 1340 igc_ethtool_init_nfc_rule(rule, fsp); 1341 1342 mutex_lock(&adapter->nfc_rule_lock); 1343 1344 err = igc_ethtool_check_nfc_rule(adapter, rule); 1345 if (err) 1346 goto err; 1347 1348 old_rule = igc_get_nfc_rule(adapter, fsp->location); 1349 if (old_rule) 1350 igc_del_nfc_rule(adapter, old_rule); 1351 1352 err = igc_add_nfc_rule(adapter, rule); 1353 if (err) 1354 goto err; 1355 1356 mutex_unlock(&adapter->nfc_rule_lock); 1357 return 0; 1358 1359 err: 1360 mutex_unlock(&adapter->nfc_rule_lock); 1361 kfree(rule); 1362 return err; 1363 } 1364 1365 static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter, 1366 struct ethtool_rxnfc *cmd) 1367 { 1368 struct ethtool_rx_flow_spec *fsp = 1369 (struct ethtool_rx_flow_spec *)&cmd->fs; 1370 struct igc_nfc_rule *rule; 1371 1372 mutex_lock(&adapter->nfc_rule_lock); 1373 1374 rule = igc_get_nfc_rule(adapter, fsp->location); 1375 if (!rule) { 1376 mutex_unlock(&adapter->nfc_rule_lock); 1377 return -EINVAL; 1378 } 1379 1380 igc_del_nfc_rule(adapter, rule); 1381 1382 mutex_unlock(&adapter->nfc_rule_lock); 1383 return 0; 1384 } 1385 1386 static int igc_ethtool_set_rxnfc(struct net_device *dev, 1387 struct ethtool_rxnfc *cmd) 1388 { 1389 struct igc_adapter *adapter = netdev_priv(dev); 1390 1391 switch (cmd->cmd) { 1392 case ETHTOOL_SRXFH: 1393 return igc_ethtool_set_rss_hash_opt(adapter, cmd); 1394 case ETHTOOL_SRXCLSRLINS: 1395 return igc_ethtool_add_nfc_rule(adapter, cmd); 1396 case ETHTOOL_SRXCLSRLDEL: 1397 return igc_ethtool_del_nfc_rule(adapter, cmd); 1398 default: 1399 return -EOPNOTSUPP; 1400 } 1401 } 1402 1403 void igc_write_rss_indir_tbl(struct igc_adapter *adapter) 1404 { 1405 struct igc_hw *hw = &adapter->hw; 1406 u32 reg = IGC_RETA(0); 1407 u32 shift = 0; 1408 int i = 0; 1409 1410 while (i < IGC_RETA_SIZE) { 1411 u32 val = 0; 1412 int j; 1413 1414 for (j = 3; j >= 0; j--) { 1415 val <<= 8; 1416 val |= adapter->rss_indir_tbl[i + j]; 1417 } 1418 1419 wr32(reg, val << shift); 1420 reg += 4; 1421 i += 4; 1422 } 1423 } 1424 1425 static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev) 1426 { 1427 return IGC_RETA_SIZE; 1428 } 1429 1430 static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, 1431 u8 *hfunc) 1432 { 1433 struct igc_adapter *adapter = netdev_priv(netdev); 1434 int i; 1435 1436 if (hfunc) 1437 *hfunc = ETH_RSS_HASH_TOP; 1438 if (!indir) 1439 return 0; 1440 for (i = 0; i < IGC_RETA_SIZE; i++) 1441 indir[i] = adapter->rss_indir_tbl[i]; 1442 1443 return 0; 1444 } 1445 1446 static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir, 1447 const u8 *key, const u8 hfunc) 1448 { 1449 struct igc_adapter *adapter = netdev_priv(netdev); 1450 u32 num_queues; 1451 int i; 1452 1453 /* We do not allow change in unsupported parameters */ 1454 if (key || 1455 (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) 1456 return -EOPNOTSUPP; 1457 if (!indir) 1458 return 0; 1459 1460 num_queues = adapter->rss_queues; 1461 1462 /* Verify user input. */ 1463 for (i = 0; i < IGC_RETA_SIZE; i++) 1464 if (indir[i] >= num_queues) 1465 return -EINVAL; 1466 1467 for (i = 0; i < IGC_RETA_SIZE; i++) 1468 adapter->rss_indir_tbl[i] = indir[i]; 1469 1470 igc_write_rss_indir_tbl(adapter); 1471 1472 return 0; 1473 } 1474 1475 static void igc_ethtool_get_channels(struct net_device *netdev, 1476 struct ethtool_channels *ch) 1477 { 1478 struct igc_adapter *adapter = netdev_priv(netdev); 1479 1480 /* Report maximum channels */ 1481 ch->max_combined = igc_get_max_rss_queues(adapter); 1482 1483 /* Report info for other vector */ 1484 if (adapter->flags & IGC_FLAG_HAS_MSIX) { 1485 ch->max_other = NON_Q_VECTORS; 1486 ch->other_count = NON_Q_VECTORS; 1487 } 1488 1489 ch->combined_count = adapter->rss_queues; 1490 } 1491 1492 static int igc_ethtool_set_channels(struct net_device *netdev, 1493 struct ethtool_channels *ch) 1494 { 1495 struct igc_adapter *adapter = netdev_priv(netdev); 1496 unsigned int count = ch->combined_count; 1497 unsigned int max_combined = 0; 1498 1499 /* Verify they are not requesting separate vectors */ 1500 if (!count || ch->rx_count || ch->tx_count) 1501 return -EINVAL; 1502 1503 /* Verify other_count is valid and has not been changed */ 1504 if (ch->other_count != NON_Q_VECTORS) 1505 return -EINVAL; 1506 1507 /* Verify the number of channels doesn't exceed hw limits */ 1508 max_combined = igc_get_max_rss_queues(adapter); 1509 if (count > max_combined) 1510 return -EINVAL; 1511 1512 if (count != adapter->rss_queues) { 1513 adapter->rss_queues = count; 1514 igc_set_flag_queue_pairs(adapter, max_combined); 1515 1516 /* Hardware has to reinitialize queues and interrupts to 1517 * match the new configuration. 1518 */ 1519 return igc_reinit_queues(adapter); 1520 } 1521 1522 return 0; 1523 } 1524 1525 static int igc_ethtool_get_ts_info(struct net_device *dev, 1526 struct ethtool_ts_info *info) 1527 { 1528 struct igc_adapter *adapter = netdev_priv(dev); 1529 1530 if (adapter->ptp_clock) 1531 info->phc_index = ptp_clock_index(adapter->ptp_clock); 1532 else 1533 info->phc_index = -1; 1534 1535 switch (adapter->hw.mac.type) { 1536 case igc_i225: 1537 info->so_timestamping = 1538 SOF_TIMESTAMPING_TX_SOFTWARE | 1539 SOF_TIMESTAMPING_RX_SOFTWARE | 1540 SOF_TIMESTAMPING_SOFTWARE | 1541 SOF_TIMESTAMPING_TX_HARDWARE | 1542 SOF_TIMESTAMPING_RX_HARDWARE | 1543 SOF_TIMESTAMPING_RAW_HARDWARE; 1544 1545 info->tx_types = 1546 BIT(HWTSTAMP_TX_OFF) | 1547 BIT(HWTSTAMP_TX_ON); 1548 1549 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE); 1550 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL); 1551 1552 return 0; 1553 default: 1554 return -EOPNOTSUPP; 1555 } 1556 } 1557 1558 static u32 igc_ethtool_get_priv_flags(struct net_device *netdev) 1559 { 1560 struct igc_adapter *adapter = netdev_priv(netdev); 1561 u32 priv_flags = 0; 1562 1563 if (adapter->flags & IGC_FLAG_RX_LEGACY) 1564 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX; 1565 1566 return priv_flags; 1567 } 1568 1569 static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags) 1570 { 1571 struct igc_adapter *adapter = netdev_priv(netdev); 1572 unsigned int flags = adapter->flags; 1573 1574 flags &= ~IGC_FLAG_RX_LEGACY; 1575 if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX) 1576 flags |= IGC_FLAG_RX_LEGACY; 1577 1578 if (flags != adapter->flags) { 1579 adapter->flags = flags; 1580 1581 /* reset interface to repopulate queues */ 1582 if (netif_running(netdev)) 1583 igc_reinit_locked(adapter); 1584 } 1585 1586 return 0; 1587 } 1588 1589 static int igc_ethtool_get_eee(struct net_device *netdev, 1590 struct ethtool_eee *edata) 1591 { 1592 struct igc_adapter *adapter = netdev_priv(netdev); 1593 struct igc_hw *hw = &adapter->hw; 1594 u32 eeer; 1595 1596 if (hw->dev_spec._base.eee_enable) 1597 edata->advertised = 1598 mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert); 1599 1600 *edata = adapter->eee; 1601 edata->supported = SUPPORTED_Autoneg; 1602 1603 eeer = rd32(IGC_EEER); 1604 1605 /* EEE status on negotiated link */ 1606 if (eeer & IGC_EEER_EEE_NEG) 1607 edata->eee_active = true; 1608 1609 if (eeer & IGC_EEER_TX_LPI_EN) 1610 edata->tx_lpi_enabled = true; 1611 1612 edata->eee_enabled = hw->dev_spec._base.eee_enable; 1613 1614 edata->advertised = SUPPORTED_Autoneg; 1615 edata->lp_advertised = SUPPORTED_Autoneg; 1616 1617 /* Report correct negotiated EEE status for devices that 1618 * wrongly report EEE at half-duplex 1619 */ 1620 if (adapter->link_duplex == HALF_DUPLEX) { 1621 edata->eee_enabled = false; 1622 edata->eee_active = false; 1623 edata->tx_lpi_enabled = false; 1624 edata->advertised &= ~edata->advertised; 1625 } 1626 1627 return 0; 1628 } 1629 1630 static int igc_ethtool_set_eee(struct net_device *netdev, 1631 struct ethtool_eee *edata) 1632 { 1633 struct igc_adapter *adapter = netdev_priv(netdev); 1634 struct igc_hw *hw = &adapter->hw; 1635 struct ethtool_eee eee_curr; 1636 s32 ret_val; 1637 1638 memset(&eee_curr, 0, sizeof(struct ethtool_eee)); 1639 1640 ret_val = igc_ethtool_get_eee(netdev, &eee_curr); 1641 if (ret_val) { 1642 netdev_err(netdev, 1643 "Problem setting EEE advertisement options\n"); 1644 return -EINVAL; 1645 } 1646 1647 if (eee_curr.eee_enabled) { 1648 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) { 1649 netdev_err(netdev, 1650 "Setting EEE tx-lpi is not supported\n"); 1651 return -EINVAL; 1652 } 1653 1654 /* Tx LPI timer is not implemented currently */ 1655 if (edata->tx_lpi_timer) { 1656 netdev_err(netdev, 1657 "Setting EEE Tx LPI timer is not supported\n"); 1658 return -EINVAL; 1659 } 1660 } else if (!edata->eee_enabled) { 1661 netdev_err(netdev, 1662 "Setting EEE options are not supported with EEE disabled\n"); 1663 return -EINVAL; 1664 } 1665 1666 adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised); 1667 if (hw->dev_spec._base.eee_enable != edata->eee_enabled) { 1668 hw->dev_spec._base.eee_enable = edata->eee_enabled; 1669 adapter->flags |= IGC_FLAG_EEE; 1670 1671 /* reset link */ 1672 if (netif_running(netdev)) 1673 igc_reinit_locked(adapter); 1674 else 1675 igc_reset(adapter); 1676 } 1677 1678 return 0; 1679 } 1680 1681 static int igc_ethtool_begin(struct net_device *netdev) 1682 { 1683 struct igc_adapter *adapter = netdev_priv(netdev); 1684 1685 pm_runtime_get_sync(&adapter->pdev->dev); 1686 return 0; 1687 } 1688 1689 static void igc_ethtool_complete(struct net_device *netdev) 1690 { 1691 struct igc_adapter *adapter = netdev_priv(netdev); 1692 1693 pm_runtime_put(&adapter->pdev->dev); 1694 } 1695 1696 static int igc_ethtool_get_link_ksettings(struct net_device *netdev, 1697 struct ethtool_link_ksettings *cmd) 1698 { 1699 struct igc_adapter *adapter = netdev_priv(netdev); 1700 struct igc_hw *hw = &adapter->hw; 1701 u32 status; 1702 u32 speed; 1703 1704 ethtool_link_ksettings_zero_link_mode(cmd, supported); 1705 ethtool_link_ksettings_zero_link_mode(cmd, advertising); 1706 1707 /* supported link modes */ 1708 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half); 1709 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full); 1710 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half); 1711 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full); 1712 ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full); 1713 ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full); 1714 1715 /* twisted pair */ 1716 cmd->base.port = PORT_TP; 1717 cmd->base.phy_address = hw->phy.addr; 1718 ethtool_link_ksettings_add_link_mode(cmd, supported, TP); 1719 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); 1720 1721 /* advertising link modes */ 1722 if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF) 1723 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half); 1724 if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL) 1725 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full); 1726 if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF) 1727 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half); 1728 if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL) 1729 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full); 1730 if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL) 1731 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full); 1732 if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL) 1733 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full); 1734 1735 /* set autoneg settings */ 1736 if (hw->mac.autoneg == 1) { 1737 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); 1738 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1739 Autoneg); 1740 } 1741 1742 /* Set pause flow control settings */ 1743 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); 1744 1745 switch (hw->fc.requested_mode) { 1746 case igc_fc_full: 1747 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1748 break; 1749 case igc_fc_rx_pause: 1750 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); 1751 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1752 Asym_Pause); 1753 break; 1754 case igc_fc_tx_pause: 1755 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1756 Asym_Pause); 1757 break; 1758 default: 1759 break; 1760 } 1761 1762 status = pm_runtime_suspended(&adapter->pdev->dev) ? 1763 0 : rd32(IGC_STATUS); 1764 1765 if (status & IGC_STATUS_LU) { 1766 if (status & IGC_STATUS_SPEED_1000) { 1767 /* For I225, STATUS will indicate 1G speed in both 1768 * 1 Gbps and 2.5 Gbps link modes. 1769 * An additional bit is used 1770 * to differentiate between 1 Gbps and 2.5 Gbps. 1771 */ 1772 if (hw->mac.type == igc_i225 && 1773 (status & IGC_STATUS_SPEED_2500)) { 1774 speed = SPEED_2500; 1775 } else { 1776 speed = SPEED_1000; 1777 } 1778 } else if (status & IGC_STATUS_SPEED_100) { 1779 speed = SPEED_100; 1780 } else { 1781 speed = SPEED_10; 1782 } 1783 if ((status & IGC_STATUS_FD) || 1784 hw->phy.media_type != igc_media_type_copper) 1785 cmd->base.duplex = DUPLEX_FULL; 1786 else 1787 cmd->base.duplex = DUPLEX_HALF; 1788 } else { 1789 speed = SPEED_UNKNOWN; 1790 cmd->base.duplex = DUPLEX_UNKNOWN; 1791 } 1792 cmd->base.speed = speed; 1793 if (hw->mac.autoneg) 1794 cmd->base.autoneg = AUTONEG_ENABLE; 1795 else 1796 cmd->base.autoneg = AUTONEG_DISABLE; 1797 1798 /* MDI-X => 2; MDI =>1; Invalid =>0 */ 1799 if (hw->phy.media_type == igc_media_type_copper) 1800 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X : 1801 ETH_TP_MDI; 1802 else 1803 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID; 1804 1805 if (hw->phy.mdix == AUTO_ALL_MODES) 1806 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; 1807 else 1808 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix; 1809 1810 return 0; 1811 } 1812 1813 static int 1814 igc_ethtool_set_link_ksettings(struct net_device *netdev, 1815 const struct ethtool_link_ksettings *cmd) 1816 { 1817 struct igc_adapter *adapter = netdev_priv(netdev); 1818 struct net_device *dev = adapter->netdev; 1819 struct igc_hw *hw = &adapter->hw; 1820 u16 advertised = 0; 1821 1822 /* When adapter in resetting mode, autoneg/speed/duplex 1823 * cannot be changed 1824 */ 1825 if (igc_check_reset_block(hw)) { 1826 netdev_err(dev, "Cannot change link characteristics when reset is active\n"); 1827 return -EINVAL; 1828 } 1829 1830 /* MDI setting is only allowed when autoneg enabled because 1831 * some hardware doesn't allow MDI setting when speed or 1832 * duplex is forced. 1833 */ 1834 if (cmd->base.eth_tp_mdix_ctrl) { 1835 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO && 1836 cmd->base.autoneg != AUTONEG_ENABLE) { 1837 netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n"); 1838 return -EINVAL; 1839 } 1840 } 1841 1842 while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) 1843 usleep_range(1000, 2000); 1844 1845 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1846 2500baseT_Full)) 1847 advertised |= ADVERTISE_2500_FULL; 1848 1849 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1850 1000baseT_Full)) 1851 advertised |= ADVERTISE_1000_FULL; 1852 1853 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1854 100baseT_Full)) 1855 advertised |= ADVERTISE_100_FULL; 1856 1857 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1858 100baseT_Half)) 1859 advertised |= ADVERTISE_100_HALF; 1860 1861 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1862 10baseT_Full)) 1863 advertised |= ADVERTISE_10_FULL; 1864 1865 if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1866 10baseT_Half)) 1867 advertised |= ADVERTISE_10_HALF; 1868 1869 if (cmd->base.autoneg == AUTONEG_ENABLE) { 1870 hw->mac.autoneg = 1; 1871 hw->phy.autoneg_advertised = advertised; 1872 if (adapter->fc_autoneg) 1873 hw->fc.requested_mode = igc_fc_default; 1874 } else { 1875 netdev_info(dev, "Force mode currently not supported\n"); 1876 } 1877 1878 /* MDI-X => 2; MDI => 1; Auto => 3 */ 1879 if (cmd->base.eth_tp_mdix_ctrl) { 1880 /* fix up the value for auto (3 => 0) as zero is mapped 1881 * internally to auto 1882 */ 1883 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO) 1884 hw->phy.mdix = AUTO_ALL_MODES; 1885 else 1886 hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl; 1887 } 1888 1889 /* reset the link */ 1890 if (netif_running(adapter->netdev)) { 1891 igc_down(adapter); 1892 igc_up(adapter); 1893 } else { 1894 igc_reset(adapter); 1895 } 1896 1897 clear_bit(__IGC_RESETTING, &adapter->state); 1898 1899 return 0; 1900 } 1901 1902 static void igc_ethtool_diag_test(struct net_device *netdev, 1903 struct ethtool_test *eth_test, u64 *data) 1904 { 1905 struct igc_adapter *adapter = netdev_priv(netdev); 1906 bool if_running = netif_running(netdev); 1907 1908 if (eth_test->flags == ETH_TEST_FL_OFFLINE) { 1909 netdev_info(adapter->netdev, "Offline testing starting"); 1910 set_bit(__IGC_TESTING, &adapter->state); 1911 1912 /* Link test performed before hardware reset so autoneg doesn't 1913 * interfere with test result 1914 */ 1915 if (!igc_link_test(adapter, &data[TEST_LINK])) 1916 eth_test->flags |= ETH_TEST_FL_FAILED; 1917 1918 if (if_running) 1919 igc_close(netdev); 1920 else 1921 igc_reset(adapter); 1922 1923 netdev_info(adapter->netdev, "Register testing starting"); 1924 if (!igc_reg_test(adapter, &data[TEST_REG])) 1925 eth_test->flags |= ETH_TEST_FL_FAILED; 1926 1927 igc_reset(adapter); 1928 1929 netdev_info(adapter->netdev, "EEPROM testing starting"); 1930 if (!igc_eeprom_test(adapter, &data[TEST_EEP])) 1931 eth_test->flags |= ETH_TEST_FL_FAILED; 1932 1933 igc_reset(adapter); 1934 1935 /* loopback and interrupt tests 1936 * will be implemented in the future 1937 */ 1938 data[TEST_LOOP] = 0; 1939 data[TEST_IRQ] = 0; 1940 1941 clear_bit(__IGC_TESTING, &adapter->state); 1942 if (if_running) 1943 igc_open(netdev); 1944 } else { 1945 netdev_info(adapter->netdev, "Online testing starting"); 1946 1947 /* register, eeprom, intr and loopback tests not run online */ 1948 data[TEST_REG] = 0; 1949 data[TEST_EEP] = 0; 1950 data[TEST_IRQ] = 0; 1951 data[TEST_LOOP] = 0; 1952 1953 if (!igc_link_test(adapter, &data[TEST_LINK])) 1954 eth_test->flags |= ETH_TEST_FL_FAILED; 1955 } 1956 1957 msleep_interruptible(4 * 1000); 1958 } 1959 1960 static const struct ethtool_ops igc_ethtool_ops = { 1961 .supported_coalesce_params = ETHTOOL_COALESCE_USECS, 1962 .get_drvinfo = igc_ethtool_get_drvinfo, 1963 .get_regs_len = igc_ethtool_get_regs_len, 1964 .get_regs = igc_ethtool_get_regs, 1965 .get_wol = igc_ethtool_get_wol, 1966 .set_wol = igc_ethtool_set_wol, 1967 .get_msglevel = igc_ethtool_get_msglevel, 1968 .set_msglevel = igc_ethtool_set_msglevel, 1969 .nway_reset = igc_ethtool_nway_reset, 1970 .get_link = igc_ethtool_get_link, 1971 .get_eeprom_len = igc_ethtool_get_eeprom_len, 1972 .get_eeprom = igc_ethtool_get_eeprom, 1973 .set_eeprom = igc_ethtool_set_eeprom, 1974 .get_ringparam = igc_ethtool_get_ringparam, 1975 .set_ringparam = igc_ethtool_set_ringparam, 1976 .get_pauseparam = igc_ethtool_get_pauseparam, 1977 .set_pauseparam = igc_ethtool_set_pauseparam, 1978 .get_strings = igc_ethtool_get_strings, 1979 .get_sset_count = igc_ethtool_get_sset_count, 1980 .get_ethtool_stats = igc_ethtool_get_stats, 1981 .get_coalesce = igc_ethtool_get_coalesce, 1982 .set_coalesce = igc_ethtool_set_coalesce, 1983 .get_rxnfc = igc_ethtool_get_rxnfc, 1984 .set_rxnfc = igc_ethtool_set_rxnfc, 1985 .get_rxfh_indir_size = igc_ethtool_get_rxfh_indir_size, 1986 .get_rxfh = igc_ethtool_get_rxfh, 1987 .set_rxfh = igc_ethtool_set_rxfh, 1988 .get_ts_info = igc_ethtool_get_ts_info, 1989 .get_channels = igc_ethtool_get_channels, 1990 .set_channels = igc_ethtool_set_channels, 1991 .get_priv_flags = igc_ethtool_get_priv_flags, 1992 .set_priv_flags = igc_ethtool_set_priv_flags, 1993 .get_eee = igc_ethtool_get_eee, 1994 .set_eee = igc_ethtool_set_eee, 1995 .begin = igc_ethtool_begin, 1996 .complete = igc_ethtool_complete, 1997 .get_link_ksettings = igc_ethtool_get_link_ksettings, 1998 .set_link_ksettings = igc_ethtool_set_link_ksettings, 1999 .self_test = igc_ethtool_diag_test, 2000 }; 2001 2002 void igc_ethtool_set_ops(struct net_device *netdev) 2003 { 2004 netdev->ethtool_ops = &igc_ethtool_ops; 2005 } 2006