2092 lines · c
1// SPDX-License-Identifier: GPL-2.02/* 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 */13struct 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 25static 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 79static 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 91enum igc_diagnostics_results {92 TEST_REG = 0,93 TEST_EEP,94 TEST_IRQ,95 TEST_LOOP,96 TEST_LINK97};98 99static 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 124static 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 131static 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 162static int igc_ethtool_get_regs_len(struct net_device *netdev)163{164 return IGC_REGS_LEN * sizeof(u32);165}166 167static 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 the191 * same but EICS does not clear on read192 */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 the200 * same but ICS does not clear on read201 */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 are332 * overwritten. To preserve the ABI, we write these registers again in333 * 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 349static 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 381static 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 410static 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 417static 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 424static 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 433static 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 last440 * looked. Set get_link_status to make sure that the true link441 * state is interrogated, rather than pulling a cached and possibly442 * 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 450static 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 457static 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 504static 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 word537 * only the second byte of the word is being modified538 */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 word545 * only the first byte of the word is being modified546 */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 571static void572igc_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 585static int586igc_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 else630 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 pointers642 * 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 }695err_setup:696 igc_up(adapter);697 vfree(temp_ring);698clear_reset:699 clear_bit(__IGC_RESETTING, &adapter->state);700 return err;701}702 703static 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 722static 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 762static 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_puts(&p, igc_gstrings_stats[i].stat_string);777 for (i = 0; i < IGC_NETDEV_STATS_LEN; i++)778 ethtool_puts(&p, igc_gstrings_net_stats[i].stat_string);779 for (i = 0; i < adapter->num_tx_queues; i++) {780 ethtool_sprintf(&p, "tx_queue_%u_packets", i);781 ethtool_sprintf(&p, "tx_queue_%u_bytes", i);782 ethtool_sprintf(&p, "tx_queue_%u_restart", i);783 }784 for (i = 0; i < adapter->num_rx_queues; i++) {785 ethtool_sprintf(&p, "rx_queue_%u_packets", i);786 ethtool_sprintf(&p, "rx_queue_%u_bytes", i);787 ethtool_sprintf(&p, "rx_queue_%u_drops", i);788 ethtool_sprintf(&p, "rx_queue_%u_csum_err", i);789 ethtool_sprintf(&p, "rx_queue_%u_alloc_failed", i);790 }791 /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */792 break;793 case ETH_SS_PRIV_FLAGS:794 memcpy(data, igc_priv_flags_strings,795 IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN);796 break;797 }798}799 800static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset)801{802 switch (sset) {803 case ETH_SS_STATS:804 return IGC_STATS_LEN;805 case ETH_SS_TEST:806 return IGC_TEST_LEN;807 case ETH_SS_PRIV_FLAGS:808 return IGC_PRIV_FLAGS_STR_LEN;809 default:810 return -ENOTSUPP;811 }812}813 814static void igc_ethtool_get_stats(struct net_device *netdev,815 struct ethtool_stats *stats, u64 *data)816{817 struct igc_adapter *adapter = netdev_priv(netdev);818 struct rtnl_link_stats64 *net_stats = &adapter->stats64;819 unsigned int start;820 struct igc_ring *ring;821 int i, j;822 char *p;823 824 spin_lock(&adapter->stats64_lock);825 igc_update_stats(adapter);826 827 for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) {828 p = (char *)adapter + igc_gstrings_stats[i].stat_offset;829 data[i] = (igc_gstrings_stats[i].sizeof_stat ==830 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;831 }832 for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) {833 p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset;834 data[i] = (igc_gstrings_net_stats[j].sizeof_stat ==835 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;836 }837 for (j = 0; j < adapter->num_tx_queues; j++) {838 u64 restart2;839 840 ring = adapter->tx_ring[j];841 do {842 start = u64_stats_fetch_begin(&ring->tx_syncp);843 data[i] = ring->tx_stats.packets;844 data[i + 1] = ring->tx_stats.bytes;845 data[i + 2] = ring->tx_stats.restart_queue;846 } while (u64_stats_fetch_retry(&ring->tx_syncp, start));847 do {848 start = u64_stats_fetch_begin(&ring->tx_syncp2);849 restart2 = ring->tx_stats.restart_queue2;850 } while (u64_stats_fetch_retry(&ring->tx_syncp2, start));851 data[i + 2] += restart2;852 853 i += IGC_TX_QUEUE_STATS_LEN;854 }855 for (j = 0; j < adapter->num_rx_queues; j++) {856 ring = adapter->rx_ring[j];857 do {858 start = u64_stats_fetch_begin(&ring->rx_syncp);859 data[i] = ring->rx_stats.packets;860 data[i + 1] = ring->rx_stats.bytes;861 data[i + 2] = ring->rx_stats.drops;862 data[i + 3] = ring->rx_stats.csum_err;863 data[i + 4] = ring->rx_stats.alloc_failed;864 } while (u64_stats_fetch_retry(&ring->rx_syncp, start));865 i += IGC_RX_QUEUE_STATS_LEN;866 }867 spin_unlock(&adapter->stats64_lock);868}869 870static int igc_ethtool_get_previous_rx_coalesce(struct igc_adapter *adapter)871{872 return (adapter->rx_itr_setting <= 3) ?873 adapter->rx_itr_setting : adapter->rx_itr_setting >> 2;874}875 876static int igc_ethtool_get_previous_tx_coalesce(struct igc_adapter *adapter)877{878 return (adapter->tx_itr_setting <= 3) ?879 adapter->tx_itr_setting : adapter->tx_itr_setting >> 2;880}881 882static int igc_ethtool_get_coalesce(struct net_device *netdev,883 struct ethtool_coalesce *ec,884 struct kernel_ethtool_coalesce *kernel_coal,885 struct netlink_ext_ack *extack)886{887 struct igc_adapter *adapter = netdev_priv(netdev);888 889 ec->rx_coalesce_usecs = igc_ethtool_get_previous_rx_coalesce(adapter);890 ec->tx_coalesce_usecs = igc_ethtool_get_previous_tx_coalesce(adapter);891 892 return 0;893}894 895static int igc_ethtool_set_coalesce(struct net_device *netdev,896 struct ethtool_coalesce *ec,897 struct kernel_ethtool_coalesce *kernel_coal,898 struct netlink_ext_ack *extack)899{900 struct igc_adapter *adapter = netdev_priv(netdev);901 int i;902 903 if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS ||904 (ec->rx_coalesce_usecs > 3 &&905 ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) ||906 ec->rx_coalesce_usecs == 2)907 return -EINVAL;908 909 if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS ||910 (ec->tx_coalesce_usecs > 3 &&911 ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) ||912 ec->tx_coalesce_usecs == 2)913 return -EINVAL;914 915 if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) &&916 ec->tx_coalesce_usecs != igc_ethtool_get_previous_tx_coalesce(adapter)) {917 NL_SET_ERR_MSG_MOD(extack,918 "Queue Pair mode enabled, both Rx and Tx coalescing controlled by rx-usecs");919 return -EINVAL;920 }921 922 /* If ITR is disabled, disable DMAC */923 if (ec->rx_coalesce_usecs == 0) {924 if (adapter->flags & IGC_FLAG_DMAC)925 adapter->flags &= ~IGC_FLAG_DMAC;926 }927 928 /* convert to rate of irq's per second */929 if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3)930 adapter->rx_itr_setting = ec->rx_coalesce_usecs;931 else932 adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2;933 934 /* convert to rate of irq's per second */935 if (adapter->flags & IGC_FLAG_QUEUE_PAIRS)936 adapter->tx_itr_setting = adapter->rx_itr_setting;937 else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3)938 adapter->tx_itr_setting = ec->tx_coalesce_usecs;939 else940 adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2;941 942 for (i = 0; i < adapter->num_q_vectors; i++) {943 struct igc_q_vector *q_vector = adapter->q_vector[i];944 945 q_vector->tx.work_limit = adapter->tx_work_limit;946 if (q_vector->rx.ring)947 q_vector->itr_val = adapter->rx_itr_setting;948 else949 q_vector->itr_val = adapter->tx_itr_setting;950 if (q_vector->itr_val && q_vector->itr_val <= 3)951 q_vector->itr_val = IGC_START_ITR;952 q_vector->set_itr = 1;953 }954 955 return 0;956}957 958#define ETHER_TYPE_FULL_MASK ((__force __be16)~0)959#define VLAN_TCI_FULL_MASK ((__force __be16)~0)960static 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_ETYPE) {983 fsp->flow_type |= FLOW_EXT;984 fsp->h_ext.vlan_etype = htons(rule->filter.vlan_etype);985 fsp->m_ext.vlan_etype = ETHER_TYPE_FULL_MASK;986 }987 988 if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) {989 fsp->flow_type |= FLOW_EXT;990 fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci);991 fsp->m_ext.vlan_tci = htons(rule->filter.vlan_tci_mask);992 }993 994 if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) {995 ether_addr_copy(fsp->h_u.ether_spec.h_dest,996 rule->filter.dst_addr);997 eth_broadcast_addr(fsp->m_u.ether_spec.h_dest);998 }999 1000 if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) {1001 ether_addr_copy(fsp->h_u.ether_spec.h_source,1002 rule->filter.src_addr);1003 eth_broadcast_addr(fsp->m_u.ether_spec.h_source);1004 }1005 1006 if (rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) {1007 fsp->flow_type |= FLOW_EXT;1008 memcpy(fsp->h_ext.data, rule->filter.user_data, sizeof(fsp->h_ext.data));1009 memcpy(fsp->m_ext.data, rule->filter.user_mask, sizeof(fsp->m_ext.data));1010 }1011 1012 mutex_unlock(&adapter->nfc_rule_lock);1013 return 0;1014 1015out:1016 mutex_unlock(&adapter->nfc_rule_lock);1017 return -EINVAL;1018}1019 1020static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter,1021 struct ethtool_rxnfc *cmd,1022 u32 *rule_locs)1023{1024 struct igc_nfc_rule *rule;1025 int cnt = 0;1026 1027 cmd->data = IGC_MAX_RXNFC_RULES;1028 1029 mutex_lock(&adapter->nfc_rule_lock);1030 1031 list_for_each_entry(rule, &adapter->nfc_rule_list, list) {1032 if (cnt == cmd->rule_cnt) {1033 mutex_unlock(&adapter->nfc_rule_lock);1034 return -EMSGSIZE;1035 }1036 rule_locs[cnt] = rule->location;1037 cnt++;1038 }1039 1040 mutex_unlock(&adapter->nfc_rule_lock);1041 1042 cmd->rule_cnt = cnt;1043 1044 return 0;1045}1046 1047static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter,1048 struct ethtool_rxnfc *cmd)1049{1050 cmd->data = 0;1051 1052 /* Report default options for RSS on igc */1053 switch (cmd->flow_type) {1054 case TCP_V4_FLOW:1055 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;1056 fallthrough;1057 case UDP_V4_FLOW:1058 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)1059 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;1060 fallthrough;1061 case SCTP_V4_FLOW:1062 case AH_ESP_V4_FLOW:1063 case AH_V4_FLOW:1064 case ESP_V4_FLOW:1065 case IPV4_FLOW:1066 cmd->data |= RXH_IP_SRC | RXH_IP_DST;1067 break;1068 case TCP_V6_FLOW:1069 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;1070 fallthrough;1071 case UDP_V6_FLOW:1072 if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)1073 cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3;1074 fallthrough;1075 case SCTP_V6_FLOW:1076 case AH_ESP_V6_FLOW:1077 case AH_V6_FLOW:1078 case ESP_V6_FLOW:1079 case IPV6_FLOW:1080 cmd->data |= RXH_IP_SRC | RXH_IP_DST;1081 break;1082 default:1083 return -EINVAL;1084 }1085 1086 return 0;1087}1088 1089static int igc_ethtool_get_rxnfc(struct net_device *dev,1090 struct ethtool_rxnfc *cmd, u32 *rule_locs)1091{1092 struct igc_adapter *adapter = netdev_priv(dev);1093 1094 switch (cmd->cmd) {1095 case ETHTOOL_GRXRINGS:1096 cmd->data = adapter->num_rx_queues;1097 return 0;1098 case ETHTOOL_GRXCLSRLCNT:1099 cmd->rule_cnt = adapter->nfc_rule_count;1100 return 0;1101 case ETHTOOL_GRXCLSRULE:1102 return igc_ethtool_get_nfc_rule(adapter, cmd);1103 case ETHTOOL_GRXCLSRLALL:1104 return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs);1105 case ETHTOOL_GRXFH:1106 return igc_ethtool_get_rss_hash_opts(adapter, cmd);1107 default:1108 return -EOPNOTSUPP;1109 }1110}1111 1112#define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \1113 IGC_FLAG_RSS_FIELD_IPV6_UDP)1114static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter,1115 struct ethtool_rxnfc *nfc)1116{1117 u32 flags = adapter->flags;1118 1119 /* RSS does not support anything other than hashing1120 * to queues on src and dst IPs and ports1121 */1122 if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST |1123 RXH_L4_B_0_1 | RXH_L4_B_2_3))1124 return -EINVAL;1125 1126 switch (nfc->flow_type) {1127 case TCP_V4_FLOW:1128 case TCP_V6_FLOW:1129 if (!(nfc->data & RXH_IP_SRC) ||1130 !(nfc->data & RXH_IP_DST) ||1131 !(nfc->data & RXH_L4_B_0_1) ||1132 !(nfc->data & RXH_L4_B_2_3))1133 return -EINVAL;1134 break;1135 case UDP_V4_FLOW:1136 if (!(nfc->data & RXH_IP_SRC) ||1137 !(nfc->data & RXH_IP_DST))1138 return -EINVAL;1139 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {1140 case 0:1141 flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP;1142 break;1143 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):1144 flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP;1145 break;1146 default:1147 return -EINVAL;1148 }1149 break;1150 case UDP_V6_FLOW:1151 if (!(nfc->data & RXH_IP_SRC) ||1152 !(nfc->data & RXH_IP_DST))1153 return -EINVAL;1154 switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) {1155 case 0:1156 flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP;1157 break;1158 case (RXH_L4_B_0_1 | RXH_L4_B_2_3):1159 flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP;1160 break;1161 default:1162 return -EINVAL;1163 }1164 break;1165 case AH_ESP_V4_FLOW:1166 case AH_V4_FLOW:1167 case ESP_V4_FLOW:1168 case SCTP_V4_FLOW:1169 case AH_ESP_V6_FLOW:1170 case AH_V6_FLOW:1171 case ESP_V6_FLOW:1172 case SCTP_V6_FLOW:1173 if (!(nfc->data & RXH_IP_SRC) ||1174 !(nfc->data & RXH_IP_DST) ||1175 (nfc->data & RXH_L4_B_0_1) ||1176 (nfc->data & RXH_L4_B_2_3))1177 return -EINVAL;1178 break;1179 default:1180 return -EINVAL;1181 }1182 1183 /* if we changed something we need to update flags */1184 if (flags != adapter->flags) {1185 struct igc_hw *hw = &adapter->hw;1186 u32 mrqc = rd32(IGC_MRQC);1187 1188 if ((flags & UDP_RSS_FLAGS) &&1189 !(adapter->flags & UDP_RSS_FLAGS))1190 netdev_err(adapter->netdev,1191 "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n");1192 1193 adapter->flags = flags;1194 1195 /* Perform hash on these packet types */1196 mrqc |= IGC_MRQC_RSS_FIELD_IPV4 |1197 IGC_MRQC_RSS_FIELD_IPV4_TCP |1198 IGC_MRQC_RSS_FIELD_IPV6 |1199 IGC_MRQC_RSS_FIELD_IPV6_TCP;1200 1201 mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP |1202 IGC_MRQC_RSS_FIELD_IPV6_UDP);1203 1204 if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP)1205 mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP;1206 1207 if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP)1208 mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP;1209 1210 wr32(IGC_MRQC, mrqc);1211 }1212 1213 return 0;1214}1215 1216static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule,1217 const struct ethtool_rx_flow_spec *fsp)1218{1219 INIT_LIST_HEAD(&rule->list);1220 1221 rule->action = fsp->ring_cookie;1222 rule->location = fsp->location;1223 1224 if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) {1225 rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci);1226 rule->filter.vlan_tci_mask = ntohs(fsp->m_ext.vlan_tci);1227 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI;1228 }1229 1230 if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) {1231 rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto);1232 rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE;1233 }1234 1235 /* Both source and destination address filters only support the full1236 * mask.1237 */1238 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) {1239 rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR;1240 ether_addr_copy(rule->filter.src_addr,1241 fsp->h_u.ether_spec.h_source);1242 }1243 1244 if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) {1245 rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR;1246 ether_addr_copy(rule->filter.dst_addr,1247 fsp->h_u.ether_spec.h_dest);1248 }1249 1250 /* VLAN etype matching */1251 if ((fsp->flow_type & FLOW_EXT) && fsp->h_ext.vlan_etype) {1252 rule->filter.vlan_etype = ntohs(fsp->h_ext.vlan_etype);1253 rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_ETYPE;1254 }1255 1256 /* Check for user defined data */1257 if ((fsp->flow_type & FLOW_EXT) &&1258 (fsp->h_ext.data[0] || fsp->h_ext.data[1])) {1259 rule->filter.match_flags |= IGC_FILTER_FLAG_USER_DATA;1260 memcpy(rule->filter.user_data, fsp->h_ext.data, sizeof(fsp->h_ext.data));1261 memcpy(rule->filter.user_mask, fsp->m_ext.data, sizeof(fsp->m_ext.data));1262 }1263 1264 /* The i225/i226 has various different filters. Flex filters provide a1265 * way to match up to the first 128 bytes of a packet. Use them for:1266 * a) For specific user data1267 * b) For VLAN EtherType1268 * c) For full TCI match1269 * d) Or in case multiple filter criteria are set1270 *1271 * Otherwise, use the simple MAC, VLAN PRIO or EtherType filters.1272 */1273 if ((rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) ||1274 (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) ||1275 ((rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) &&1276 rule->filter.vlan_tci_mask == ntohs(VLAN_TCI_FULL_MASK)) ||1277 (rule->filter.match_flags & (rule->filter.match_flags - 1)))1278 rule->flex = true;1279 else1280 rule->flex = false;1281}1282 1283/**1284 * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid1285 * @adapter: Pointer to adapter1286 * @rule: Rule under evaluation1287 *1288 * The driver doesn't support rules with multiple matches so if more than1289 * one bit in filter flags is set, @rule is considered invalid.1290 *1291 * Also, if there is already another rule with the same filter in a different1292 * location, @rule is considered invalid.1293 *1294 * Context: Expects adapter->nfc_rule_lock to be held by caller.1295 *1296 * Return: 0 in case of success, negative errno code otherwise.1297 */1298static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter,1299 struct igc_nfc_rule *rule)1300{1301 struct net_device *dev = adapter->netdev;1302 u8 flags = rule->filter.match_flags;1303 struct igc_nfc_rule *tmp;1304 1305 if (!flags) {1306 netdev_dbg(dev, "Rule with no match\n");1307 return -EINVAL;1308 }1309 1310 list_for_each_entry(tmp, &adapter->nfc_rule_list, list) {1311 if (!memcmp(&rule->filter, &tmp->filter,1312 sizeof(rule->filter)) &&1313 tmp->location != rule->location) {1314 netdev_dbg(dev, "Rule already exists\n");1315 return -EEXIST;1316 }1317 }1318 1319 return 0;1320}1321 1322static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter,1323 struct ethtool_rxnfc *cmd)1324{1325 struct net_device *netdev = adapter->netdev;1326 struct ethtool_rx_flow_spec *fsp =1327 (struct ethtool_rx_flow_spec *)&cmd->fs;1328 struct igc_nfc_rule *rule, *old_rule;1329 int err;1330 1331 if (!(netdev->hw_features & NETIF_F_NTUPLE)) {1332 netdev_dbg(netdev, "N-tuple filters disabled\n");1333 return -EOPNOTSUPP;1334 }1335 1336 if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) {1337 netdev_dbg(netdev, "Only ethernet flow type is supported\n");1338 return -EOPNOTSUPP;1339 }1340 1341 if (fsp->ring_cookie >= adapter->num_rx_queues) {1342 netdev_dbg(netdev, "Invalid action\n");1343 return -EINVAL;1344 }1345 1346 /* There are two ways to match the VLAN TCI:1347 * 1. Match on PCP field and use vlan prio filter for it1348 * 2. Match on complete TCI field and use flex filter for it1349 */1350 if ((fsp->flow_type & FLOW_EXT) &&1351 fsp->m_ext.vlan_tci &&1352 fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK) &&1353 fsp->m_ext.vlan_tci != VLAN_TCI_FULL_MASK) {1354 netdev_dbg(netdev, "VLAN mask not supported\n");1355 return -EOPNOTSUPP;1356 }1357 1358 /* VLAN EtherType can only be matched by full mask. */1359 if ((fsp->flow_type & FLOW_EXT) &&1360 fsp->m_ext.vlan_etype &&1361 fsp->m_ext.vlan_etype != ETHER_TYPE_FULL_MASK) {1362 netdev_dbg(netdev, "VLAN EtherType mask not supported\n");1363 return -EOPNOTSUPP;1364 }1365 1366 if (fsp->location >= IGC_MAX_RXNFC_RULES) {1367 netdev_dbg(netdev, "Invalid location\n");1368 return -EINVAL;1369 }1370 1371 rule = kzalloc(sizeof(*rule), GFP_KERNEL);1372 if (!rule)1373 return -ENOMEM;1374 1375 igc_ethtool_init_nfc_rule(rule, fsp);1376 1377 mutex_lock(&adapter->nfc_rule_lock);1378 1379 err = igc_ethtool_check_nfc_rule(adapter, rule);1380 if (err)1381 goto err;1382 1383 old_rule = igc_get_nfc_rule(adapter, fsp->location);1384 if (old_rule)1385 igc_del_nfc_rule(adapter, old_rule);1386 1387 err = igc_add_nfc_rule(adapter, rule);1388 if (err)1389 goto err;1390 1391 mutex_unlock(&adapter->nfc_rule_lock);1392 return 0;1393 1394err:1395 mutex_unlock(&adapter->nfc_rule_lock);1396 kfree(rule);1397 return err;1398}1399 1400static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter,1401 struct ethtool_rxnfc *cmd)1402{1403 struct ethtool_rx_flow_spec *fsp =1404 (struct ethtool_rx_flow_spec *)&cmd->fs;1405 struct igc_nfc_rule *rule;1406 1407 mutex_lock(&adapter->nfc_rule_lock);1408 1409 rule = igc_get_nfc_rule(adapter, fsp->location);1410 if (!rule) {1411 mutex_unlock(&adapter->nfc_rule_lock);1412 return -EINVAL;1413 }1414 1415 igc_del_nfc_rule(adapter, rule);1416 1417 mutex_unlock(&adapter->nfc_rule_lock);1418 return 0;1419}1420 1421static int igc_ethtool_set_rxnfc(struct net_device *dev,1422 struct ethtool_rxnfc *cmd)1423{1424 struct igc_adapter *adapter = netdev_priv(dev);1425 1426 switch (cmd->cmd) {1427 case ETHTOOL_SRXFH:1428 return igc_ethtool_set_rss_hash_opt(adapter, cmd);1429 case ETHTOOL_SRXCLSRLINS:1430 return igc_ethtool_add_nfc_rule(adapter, cmd);1431 case ETHTOOL_SRXCLSRLDEL:1432 return igc_ethtool_del_nfc_rule(adapter, cmd);1433 default:1434 return -EOPNOTSUPP;1435 }1436}1437 1438void igc_write_rss_indir_tbl(struct igc_adapter *adapter)1439{1440 struct igc_hw *hw = &adapter->hw;1441 u32 reg = IGC_RETA(0);1442 u32 shift = 0;1443 int i = 0;1444 1445 while (i < IGC_RETA_SIZE) {1446 u32 val = 0;1447 int j;1448 1449 for (j = 3; j >= 0; j--) {1450 val <<= 8;1451 val |= adapter->rss_indir_tbl[i + j];1452 }1453 1454 wr32(reg, val << shift);1455 reg += 4;1456 i += 4;1457 }1458}1459 1460static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev)1461{1462 return IGC_RETA_SIZE;1463}1464 1465static int igc_ethtool_get_rxfh(struct net_device *netdev,1466 struct ethtool_rxfh_param *rxfh)1467{1468 struct igc_adapter *adapter = netdev_priv(netdev);1469 int i;1470 1471 rxfh->hfunc = ETH_RSS_HASH_TOP;1472 if (!rxfh->indir)1473 return 0;1474 for (i = 0; i < IGC_RETA_SIZE; i++)1475 rxfh->indir[i] = adapter->rss_indir_tbl[i];1476 1477 return 0;1478}1479 1480static int igc_ethtool_set_rxfh(struct net_device *netdev,1481 struct ethtool_rxfh_param *rxfh,1482 struct netlink_ext_ack *extack)1483{1484 struct igc_adapter *adapter = netdev_priv(netdev);1485 u32 num_queues;1486 int i;1487 1488 /* We do not allow change in unsupported parameters */1489 if (rxfh->key ||1490 (rxfh->hfunc != ETH_RSS_HASH_NO_CHANGE &&1491 rxfh->hfunc != ETH_RSS_HASH_TOP))1492 return -EOPNOTSUPP;1493 if (!rxfh->indir)1494 return 0;1495 1496 num_queues = adapter->rss_queues;1497 1498 /* Verify user input. */1499 for (i = 0; i < IGC_RETA_SIZE; i++)1500 if (rxfh->indir[i] >= num_queues)1501 return -EINVAL;1502 1503 for (i = 0; i < IGC_RETA_SIZE; i++)1504 adapter->rss_indir_tbl[i] = rxfh->indir[i];1505 1506 igc_write_rss_indir_tbl(adapter);1507 1508 return 0;1509}1510 1511static void igc_ethtool_get_channels(struct net_device *netdev,1512 struct ethtool_channels *ch)1513{1514 struct igc_adapter *adapter = netdev_priv(netdev);1515 1516 /* Report maximum channels */1517 ch->max_combined = igc_get_max_rss_queues(adapter);1518 1519 /* Report info for other vector */1520 if (adapter->flags & IGC_FLAG_HAS_MSIX) {1521 ch->max_other = NON_Q_VECTORS;1522 ch->other_count = NON_Q_VECTORS;1523 }1524 1525 ch->combined_count = adapter->rss_queues;1526}1527 1528static int igc_ethtool_set_channels(struct net_device *netdev,1529 struct ethtool_channels *ch)1530{1531 struct igc_adapter *adapter = netdev_priv(netdev);1532 unsigned int count = ch->combined_count;1533 unsigned int max_combined = 0;1534 1535 /* Verify they are not requesting separate vectors */1536 if (!count || ch->rx_count || ch->tx_count)1537 return -EINVAL;1538 1539 /* Verify other_count is valid and has not been changed */1540 if (ch->other_count != NON_Q_VECTORS)1541 return -EINVAL;1542 1543 /* Do not allow channel reconfiguration when mqprio is enabled */1544 if (adapter->strict_priority_enable)1545 return -EINVAL;1546 1547 /* Verify the number of channels doesn't exceed hw limits */1548 max_combined = igc_get_max_rss_queues(adapter);1549 if (count > max_combined)1550 return -EINVAL;1551 1552 if (count != adapter->rss_queues) {1553 adapter->rss_queues = count;1554 igc_set_flag_queue_pairs(adapter, max_combined);1555 1556 /* Hardware has to reinitialize queues and interrupts to1557 * match the new configuration.1558 */1559 return igc_reinit_queues(adapter);1560 }1561 1562 return 0;1563}1564 1565static int igc_ethtool_get_ts_info(struct net_device *dev,1566 struct kernel_ethtool_ts_info *info)1567{1568 struct igc_adapter *adapter = netdev_priv(dev);1569 1570 if (adapter->ptp_clock)1571 info->phc_index = ptp_clock_index(adapter->ptp_clock);1572 1573 switch (adapter->hw.mac.type) {1574 case igc_i225:1575 info->so_timestamping =1576 SOF_TIMESTAMPING_TX_SOFTWARE |1577 SOF_TIMESTAMPING_TX_HARDWARE |1578 SOF_TIMESTAMPING_RX_HARDWARE |1579 SOF_TIMESTAMPING_RAW_HARDWARE;1580 1581 info->tx_types =1582 BIT(HWTSTAMP_TX_OFF) |1583 BIT(HWTSTAMP_TX_ON);1584 1585 info->rx_filters = BIT(HWTSTAMP_FILTER_NONE);1586 info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL);1587 1588 return 0;1589 default:1590 return -EOPNOTSUPP;1591 }1592}1593 1594static u32 igc_ethtool_get_priv_flags(struct net_device *netdev)1595{1596 struct igc_adapter *adapter = netdev_priv(netdev);1597 u32 priv_flags = 0;1598 1599 if (adapter->flags & IGC_FLAG_RX_LEGACY)1600 priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX;1601 1602 return priv_flags;1603}1604 1605static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags)1606{1607 struct igc_adapter *adapter = netdev_priv(netdev);1608 unsigned int flags = adapter->flags;1609 1610 flags &= ~IGC_FLAG_RX_LEGACY;1611 if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX)1612 flags |= IGC_FLAG_RX_LEGACY;1613 1614 if (flags != adapter->flags) {1615 adapter->flags = flags;1616 1617 /* reset interface to repopulate queues */1618 if (netif_running(netdev))1619 igc_reinit_locked(adapter);1620 }1621 1622 return 0;1623}1624 1625static int igc_ethtool_get_eee(struct net_device *netdev,1626 struct ethtool_keee *edata)1627{1628 struct igc_adapter *adapter = netdev_priv(netdev);1629 struct igc_hw *hw = &adapter->hw;1630 struct igc_phy_info *phy = &hw->phy;1631 u16 eee_advert, eee_lp_advert;1632 u32 eeer, ret_val;1633 1634 /* EEE supported */1635 linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,1636 edata->supported);1637 linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,1638 edata->supported);1639 linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,1640 edata->supported);1641 1642 /* EEE Advertisement 1 - reg 7.60 */1643 ret_val = phy->ops.read_reg(hw, (STANDARD_AN_REG_MASK <<1644 MMD_DEVADDR_SHIFT) |1645 IGC_ANEG_EEE_AB1,1646 &eee_advert);1647 if (ret_val) {1648 netdev_err(adapter->netdev,1649 "Failed to read IEEE 7.60 register\n");1650 return -EINVAL;1651 }1652 1653 if (eee_advert & IGC_EEE_1000BT_MASK)1654 linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,1655 edata->advertised);1656 1657 if (eee_advert & IGC_EEE_100BT_MASK)1658 linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,1659 edata->advertised);1660 1661 /* EEE Advertisement 2 - reg 7.62 */1662 ret_val = phy->ops.read_reg(hw, (STANDARD_AN_REG_MASK <<1663 MMD_DEVADDR_SHIFT) |1664 IGC_ANEG_EEE_AB2,1665 &eee_advert);1666 if (ret_val) {1667 netdev_err(adapter->netdev,1668 "Failed to read IEEE 7.62 register\n");1669 return -EINVAL;1670 }1671 1672 if (eee_advert & IGC_EEE_2500BT_MASK)1673 linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,1674 edata->advertised);1675 1676 /* EEE Link-Partner Ability 1 - reg 7.61 */1677 ret_val = phy->ops.read_reg(hw, (STANDARD_AN_REG_MASK <<1678 MMD_DEVADDR_SHIFT) |1679 IGC_ANEG_EEE_LP_AB1,1680 &eee_lp_advert);1681 if (ret_val) {1682 netdev_err(adapter->netdev,1683 "Failed to read IEEE 7.61 register\n");1684 return -EINVAL;1685 }1686 1687 if (eee_lp_advert & IGC_LP_EEE_1000BT_MASK)1688 linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,1689 edata->lp_advertised);1690 1691 if (eee_lp_advert & IGC_LP_EEE_100BT_MASK)1692 linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,1693 edata->lp_advertised);1694 1695 /* EEE Link-Partner Ability 2 - reg 7.63 */1696 ret_val = phy->ops.read_reg(hw, (STANDARD_AN_REG_MASK <<1697 MMD_DEVADDR_SHIFT) |1698 IGC_ANEG_EEE_LP_AB2,1699 &eee_lp_advert);1700 if (ret_val) {1701 netdev_err(adapter->netdev,1702 "Failed to read IEEE 7.63 register\n");1703 return -EINVAL;1704 }1705 1706 if (eee_lp_advert & IGC_LP_EEE_2500BT_MASK)1707 linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,1708 edata->lp_advertised);1709 1710 eeer = rd32(IGC_EEER);1711 1712 /* EEE status on negotiated link */1713 if (eeer & IGC_EEER_EEE_NEG)1714 edata->eee_active = true;1715 1716 if (eeer & IGC_EEER_TX_LPI_EN)1717 edata->tx_lpi_enabled = true;1718 1719 edata->eee_enabled = hw->dev_spec._base.eee_enable;1720 1721 /* Report correct negotiated EEE status for devices that1722 * wrongly report EEE at half-duplex1723 */1724 if (adapter->link_duplex == HALF_DUPLEX) {1725 edata->eee_enabled = false;1726 edata->eee_active = false;1727 edata->tx_lpi_enabled = false;1728 linkmode_zero(edata->advertised);1729 }1730 1731 return 0;1732}1733 1734static int igc_ethtool_set_eee(struct net_device *netdev,1735 struct ethtool_keee *edata)1736{1737 struct igc_adapter *adapter = netdev_priv(netdev);1738 struct igc_hw *hw = &adapter->hw;1739 struct ethtool_keee eee_curr;1740 s32 ret_val;1741 1742 memset(&eee_curr, 0, sizeof(struct ethtool_keee));1743 1744 ret_val = igc_ethtool_get_eee(netdev, &eee_curr);1745 if (ret_val) {1746 netdev_err(netdev,1747 "Problem setting EEE advertisement options\n");1748 return -EINVAL;1749 }1750 1751 if (eee_curr.eee_enabled) {1752 if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) {1753 netdev_err(netdev,1754 "Setting EEE tx-lpi is not supported\n");1755 return -EINVAL;1756 }1757 1758 /* Tx LPI timer is not implemented currently */1759 if (edata->tx_lpi_timer) {1760 netdev_err(netdev,1761 "Setting EEE Tx LPI timer is not supported\n");1762 return -EINVAL;1763 }1764 } else if (!edata->eee_enabled) {1765 netdev_err(netdev,1766 "Setting EEE options are not supported with EEE disabled\n");1767 return -EINVAL;1768 }1769 1770 if (hw->dev_spec._base.eee_enable != edata->eee_enabled) {1771 hw->dev_spec._base.eee_enable = edata->eee_enabled;1772 adapter->flags |= IGC_FLAG_EEE;1773 1774 /* reset link */1775 if (netif_running(netdev))1776 igc_reinit_locked(adapter);1777 else1778 igc_reset(adapter);1779 }1780 1781 return 0;1782}1783 1784static int igc_ethtool_get_link_ksettings(struct net_device *netdev,1785 struct ethtool_link_ksettings *cmd)1786{1787 struct igc_adapter *adapter = netdev_priv(netdev);1788 struct igc_hw *hw = &adapter->hw;1789 u32 status;1790 u32 speed;1791 1792 ethtool_link_ksettings_zero_link_mode(cmd, supported);1793 ethtool_link_ksettings_zero_link_mode(cmd, advertising);1794 1795 /* supported link modes */1796 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half);1797 ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full);1798 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half);1799 ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full);1800 ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);1801 ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full);1802 1803 /* twisted pair */1804 cmd->base.port = PORT_TP;1805 cmd->base.phy_address = hw->phy.addr;1806 ethtool_link_ksettings_add_link_mode(cmd, supported, TP);1807 ethtool_link_ksettings_add_link_mode(cmd, advertising, TP);1808 1809 /* advertising link modes */1810 if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF)1811 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half);1812 if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL)1813 ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full);1814 if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF)1815 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half);1816 if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL)1817 ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full);1818 if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL)1819 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);1820 if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL)1821 ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full);1822 1823 /* set autoneg settings */1824 if (hw->mac.autoneg == 1) {1825 ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg);1826 ethtool_link_ksettings_add_link_mode(cmd, advertising,1827 Autoneg);1828 }1829 1830 /* Set pause flow control settings */1831 ethtool_link_ksettings_add_link_mode(cmd, supported, Pause);1832 1833 switch (hw->fc.requested_mode) {1834 case igc_fc_full:1835 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);1836 break;1837 case igc_fc_rx_pause:1838 ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause);1839 ethtool_link_ksettings_add_link_mode(cmd, advertising,1840 Asym_Pause);1841 break;1842 case igc_fc_tx_pause:1843 ethtool_link_ksettings_add_link_mode(cmd, advertising,1844 Asym_Pause);1845 break;1846 default:1847 break;1848 }1849 1850 status = pm_runtime_suspended(&adapter->pdev->dev) ?1851 0 : rd32(IGC_STATUS);1852 1853 if (status & IGC_STATUS_LU) {1854 if (status & IGC_STATUS_SPEED_1000) {1855 /* For I225, STATUS will indicate 1G speed in both1856 * 1 Gbps and 2.5 Gbps link modes.1857 * An additional bit is used1858 * to differentiate between 1 Gbps and 2.5 Gbps.1859 */1860 if (hw->mac.type == igc_i225 &&1861 (status & IGC_STATUS_SPEED_2500)) {1862 speed = SPEED_2500;1863 } else {1864 speed = SPEED_1000;1865 }1866 } else if (status & IGC_STATUS_SPEED_100) {1867 speed = SPEED_100;1868 } else {1869 speed = SPEED_10;1870 }1871 if ((status & IGC_STATUS_FD) ||1872 hw->phy.media_type != igc_media_type_copper)1873 cmd->base.duplex = DUPLEX_FULL;1874 else1875 cmd->base.duplex = DUPLEX_HALF;1876 } else {1877 speed = SPEED_UNKNOWN;1878 cmd->base.duplex = DUPLEX_UNKNOWN;1879 }1880 cmd->base.speed = speed;1881 if (hw->mac.autoneg)1882 cmd->base.autoneg = AUTONEG_ENABLE;1883 else1884 cmd->base.autoneg = AUTONEG_DISABLE;1885 1886 /* MDI-X => 2; MDI =>1; Invalid =>0 */1887 if (hw->phy.media_type == igc_media_type_copper)1888 cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X :1889 ETH_TP_MDI;1890 else1891 cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID;1892 1893 if (hw->phy.mdix == AUTO_ALL_MODES)1894 cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO;1895 else1896 cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix;1897 1898 return 0;1899}1900 1901static int1902igc_ethtool_set_link_ksettings(struct net_device *netdev,1903 const struct ethtool_link_ksettings *cmd)1904{1905 struct igc_adapter *adapter = netdev_priv(netdev);1906 struct net_device *dev = adapter->netdev;1907 struct igc_hw *hw = &adapter->hw;1908 u16 advertised = 0;1909 1910 /* When adapter in resetting mode, autoneg/speed/duplex1911 * cannot be changed1912 */1913 if (igc_check_reset_block(hw)) {1914 netdev_err(dev, "Cannot change link characteristics when reset is active\n");1915 return -EINVAL;1916 }1917 1918 /* MDI setting is only allowed when autoneg enabled because1919 * some hardware doesn't allow MDI setting when speed or1920 * duplex is forced.1921 */1922 if (cmd->base.eth_tp_mdix_ctrl) {1923 if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO &&1924 cmd->base.autoneg != AUTONEG_ENABLE) {1925 netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n");1926 return -EINVAL;1927 }1928 }1929 1930 while (test_and_set_bit(__IGC_RESETTING, &adapter->state))1931 usleep_range(1000, 2000);1932 1933 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,1934 2500baseT_Full))1935 advertised |= ADVERTISE_2500_FULL;1936 1937 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,1938 1000baseT_Full))1939 advertised |= ADVERTISE_1000_FULL;1940 1941 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,1942 100baseT_Full))1943 advertised |= ADVERTISE_100_FULL;1944 1945 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,1946 100baseT_Half))1947 advertised |= ADVERTISE_100_HALF;1948 1949 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,1950 10baseT_Full))1951 advertised |= ADVERTISE_10_FULL;1952 1953 if (ethtool_link_ksettings_test_link_mode(cmd, advertising,1954 10baseT_Half))1955 advertised |= ADVERTISE_10_HALF;1956 1957 if (cmd->base.autoneg == AUTONEG_ENABLE) {1958 hw->mac.autoneg = 1;1959 hw->phy.autoneg_advertised = advertised;1960 if (adapter->fc_autoneg)1961 hw->fc.requested_mode = igc_fc_default;1962 } else {1963 netdev_info(dev, "Force mode currently not supported\n");1964 }1965 1966 /* MDI-X => 2; MDI => 1; Auto => 3 */1967 if (cmd->base.eth_tp_mdix_ctrl) {1968 /* fix up the value for auto (3 => 0) as zero is mapped1969 * internally to auto1970 */1971 if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)1972 hw->phy.mdix = AUTO_ALL_MODES;1973 else1974 hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl;1975 }1976 1977 /* reset the link */1978 if (netif_running(adapter->netdev)) {1979 igc_down(adapter);1980 igc_up(adapter);1981 } else {1982 igc_reset(adapter);1983 }1984 1985 clear_bit(__IGC_RESETTING, &adapter->state);1986 1987 return 0;1988}1989 1990static void igc_ethtool_diag_test(struct net_device *netdev,1991 struct ethtool_test *eth_test, u64 *data)1992{1993 struct igc_adapter *adapter = netdev_priv(netdev);1994 bool if_running = netif_running(netdev);1995 1996 if (eth_test->flags == ETH_TEST_FL_OFFLINE) {1997 netdev_info(adapter->netdev, "Offline testing starting");1998 set_bit(__IGC_TESTING, &adapter->state);1999 2000 /* Link test performed before hardware reset so autoneg doesn't2001 * interfere with test result2002 */2003 if (!igc_link_test(adapter, &data[TEST_LINK]))2004 eth_test->flags |= ETH_TEST_FL_FAILED;2005 2006 if (if_running)2007 igc_close(netdev);2008 else2009 igc_reset(adapter);2010 2011 netdev_info(adapter->netdev, "Register testing starting");2012 if (!igc_reg_test(adapter, &data[TEST_REG]))2013 eth_test->flags |= ETH_TEST_FL_FAILED;2014 2015 igc_reset(adapter);2016 2017 netdev_info(adapter->netdev, "EEPROM testing starting");2018 if (!igc_eeprom_test(adapter, &data[TEST_EEP]))2019 eth_test->flags |= ETH_TEST_FL_FAILED;2020 2021 igc_reset(adapter);2022 2023 /* loopback and interrupt tests2024 * will be implemented in the future2025 */2026 data[TEST_LOOP] = 0;2027 data[TEST_IRQ] = 0;2028 2029 clear_bit(__IGC_TESTING, &adapter->state);2030 if (if_running)2031 igc_open(netdev);2032 } else {2033 netdev_info(adapter->netdev, "Online testing starting");2034 2035 /* register, eeprom, intr and loopback tests not run online */2036 data[TEST_REG] = 0;2037 data[TEST_EEP] = 0;2038 data[TEST_IRQ] = 0;2039 data[TEST_LOOP] = 0;2040 2041 if (!igc_link_test(adapter, &data[TEST_LINK]))2042 eth_test->flags |= ETH_TEST_FL_FAILED;2043 }2044 2045 msleep_interruptible(4 * 1000);2046}2047 2048static const struct ethtool_ops igc_ethtool_ops = {2049 .supported_coalesce_params = ETHTOOL_COALESCE_USECS,2050 .get_drvinfo = igc_ethtool_get_drvinfo,2051 .get_regs_len = igc_ethtool_get_regs_len,2052 .get_regs = igc_ethtool_get_regs,2053 .get_wol = igc_ethtool_get_wol,2054 .set_wol = igc_ethtool_set_wol,2055 .get_msglevel = igc_ethtool_get_msglevel,2056 .set_msglevel = igc_ethtool_set_msglevel,2057 .nway_reset = igc_ethtool_nway_reset,2058 .get_link = igc_ethtool_get_link,2059 .get_eeprom_len = igc_ethtool_get_eeprom_len,2060 .get_eeprom = igc_ethtool_get_eeprom,2061 .set_eeprom = igc_ethtool_set_eeprom,2062 .get_ringparam = igc_ethtool_get_ringparam,2063 .set_ringparam = igc_ethtool_set_ringparam,2064 .get_pauseparam = igc_ethtool_get_pauseparam,2065 .set_pauseparam = igc_ethtool_set_pauseparam,2066 .get_strings = igc_ethtool_get_strings,2067 .get_sset_count = igc_ethtool_get_sset_count,2068 .get_ethtool_stats = igc_ethtool_get_stats,2069 .get_coalesce = igc_ethtool_get_coalesce,2070 .set_coalesce = igc_ethtool_set_coalesce,2071 .get_rxnfc = igc_ethtool_get_rxnfc,2072 .set_rxnfc = igc_ethtool_set_rxnfc,2073 .get_rxfh_indir_size = igc_ethtool_get_rxfh_indir_size,2074 .get_rxfh = igc_ethtool_get_rxfh,2075 .set_rxfh = igc_ethtool_set_rxfh,2076 .get_ts_info = igc_ethtool_get_ts_info,2077 .get_channels = igc_ethtool_get_channels,2078 .set_channels = igc_ethtool_set_channels,2079 .get_priv_flags = igc_ethtool_get_priv_flags,2080 .set_priv_flags = igc_ethtool_set_priv_flags,2081 .get_eee = igc_ethtool_get_eee,2082 .set_eee = igc_ethtool_set_eee,2083 .get_link_ksettings = igc_ethtool_get_link_ksettings,2084 .set_link_ksettings = igc_ethtool_set_link_ksettings,2085 .self_test = igc_ethtool_diag_test,2086};2087 2088void igc_ethtool_set_ops(struct net_device *netdev)2089{2090 netdev->ethtool_ops = &igc_ethtool_ops;2091}2092