// SPDX-License-Identifier: GPL-2.0 /* Copyright (c) 2018 Intel Corporation */ /* ethtool support for igc */ #include #include #include #include "igc.h" #include "igc_diag.h" /* forward declaration */ struct igc_stats { char stat_string[ETH_GSTRING_LEN]; int sizeof_stat; int stat_offset; }; #define IGC_STAT(_name, _stat) { \ .stat_string = _name, \ .sizeof_stat = sizeof_field(struct igc_adapter, _stat), \ .stat_offset = offsetof(struct igc_adapter, _stat) \ } static const struct igc_stats igc_gstrings_stats[] = { IGC_STAT("rx_packets", stats.gprc), IGC_STAT("tx_packets", stats.gptc), IGC_STAT("rx_bytes", stats.gorc), IGC_STAT("tx_bytes", stats.gotc), IGC_STAT("rx_broadcast", stats.bprc), IGC_STAT("tx_broadcast", stats.bptc), IGC_STAT("rx_multicast", stats.mprc), IGC_STAT("tx_multicast", stats.mptc), IGC_STAT("multicast", stats.mprc), IGC_STAT("collisions", stats.colc), IGC_STAT("rx_crc_errors", stats.crcerrs), IGC_STAT("rx_no_buffer_count", stats.rnbc), IGC_STAT("rx_missed_errors", stats.mpc), IGC_STAT("tx_aborted_errors", stats.ecol), IGC_STAT("tx_carrier_errors", stats.tncrs), IGC_STAT("tx_window_errors", stats.latecol), IGC_STAT("tx_abort_late_coll", stats.latecol), IGC_STAT("tx_deferred_ok", stats.dc), IGC_STAT("tx_single_coll_ok", stats.scc), IGC_STAT("tx_multi_coll_ok", stats.mcc), IGC_STAT("tx_timeout_count", tx_timeout_count), IGC_STAT("rx_long_length_errors", stats.roc), IGC_STAT("rx_short_length_errors", stats.ruc), IGC_STAT("rx_align_errors", stats.algnerrc), IGC_STAT("tx_tcp_seg_good", stats.tsctc), IGC_STAT("tx_tcp_seg_failed", stats.tsctfc), IGC_STAT("rx_flow_control_xon", stats.xonrxc), IGC_STAT("rx_flow_control_xoff", stats.xoffrxc), IGC_STAT("tx_flow_control_xon", stats.xontxc), IGC_STAT("tx_flow_control_xoff", stats.xofftxc), IGC_STAT("rx_long_byte_count", stats.gorc), IGC_STAT("tx_dma_out_of_sync", stats.doosync), IGC_STAT("tx_smbus", stats.mgptc), IGC_STAT("rx_smbus", stats.mgprc), IGC_STAT("dropped_smbus", stats.mgpdc), IGC_STAT("os2bmc_rx_by_bmc", stats.o2bgptc), IGC_STAT("os2bmc_tx_by_bmc", stats.b2ospc), IGC_STAT("os2bmc_tx_by_host", stats.o2bspc), IGC_STAT("os2bmc_rx_by_host", stats.b2ogprc), IGC_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts), IGC_STAT("tx_hwtstamp_skipped", tx_hwtstamp_skipped), IGC_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared), IGC_STAT("tx_lpi_counter", stats.tlpic), IGC_STAT("rx_lpi_counter", stats.rlpic), }; #define IGC_NETDEV_STAT(_net_stat) { \ .stat_string = __stringify(_net_stat), \ .sizeof_stat = sizeof_field(struct rtnl_link_stats64, _net_stat), \ .stat_offset = offsetof(struct rtnl_link_stats64, _net_stat) \ } static const struct igc_stats igc_gstrings_net_stats[] = { IGC_NETDEV_STAT(rx_errors), IGC_NETDEV_STAT(tx_errors), IGC_NETDEV_STAT(tx_dropped), IGC_NETDEV_STAT(rx_length_errors), IGC_NETDEV_STAT(rx_over_errors), IGC_NETDEV_STAT(rx_frame_errors), IGC_NETDEV_STAT(rx_fifo_errors), IGC_NETDEV_STAT(tx_fifo_errors), IGC_NETDEV_STAT(tx_heartbeat_errors) }; enum igc_diagnostics_results { TEST_REG = 0, TEST_EEP, TEST_IRQ, TEST_LOOP, TEST_LINK }; static const char igc_gstrings_test[][ETH_GSTRING_LEN] = { [TEST_REG] = "Register test (offline)", [TEST_EEP] = "Eeprom test (offline)", [TEST_IRQ] = "Interrupt test (offline)", [TEST_LOOP] = "Loopback test (offline)", [TEST_LINK] = "Link test (on/offline)" }; #define IGC_TEST_LEN (sizeof(igc_gstrings_test) / ETH_GSTRING_LEN) #define IGC_GLOBAL_STATS_LEN \ (sizeof(igc_gstrings_stats) / sizeof(struct igc_stats)) #define IGC_NETDEV_STATS_LEN \ (sizeof(igc_gstrings_net_stats) / sizeof(struct igc_stats)) #define IGC_RX_QUEUE_STATS_LEN \ (sizeof(struct igc_rx_queue_stats) / sizeof(u64)) #define IGC_TX_QUEUE_STATS_LEN 3 /* packets, bytes, restart_queue */ #define IGC_QUEUE_STATS_LEN \ ((((struct igc_adapter *)netdev_priv(netdev))->num_rx_queues * \ IGC_RX_QUEUE_STATS_LEN) + \ (((struct igc_adapter *)netdev_priv(netdev))->num_tx_queues * \ IGC_TX_QUEUE_STATS_LEN)) #define IGC_STATS_LEN \ (IGC_GLOBAL_STATS_LEN + IGC_NETDEV_STATS_LEN + IGC_QUEUE_STATS_LEN) static const char igc_priv_flags_strings[][ETH_GSTRING_LEN] = { #define IGC_PRIV_FLAGS_LEGACY_RX BIT(0) "legacy-rx", }; #define IGC_PRIV_FLAGS_STR_LEN ARRAY_SIZE(igc_priv_flags_strings) static void igc_ethtool_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo) { struct igc_adapter *adapter = netdev_priv(netdev); struct igc_hw *hw = &adapter->hw; u16 nvm_version = 0; u16 gphy_version; strscpy(drvinfo->driver, igc_driver_name, sizeof(drvinfo->driver)); /* NVM image version is reported as firmware version for i225 device */ hw->nvm.ops.read(hw, IGC_NVM_DEV_STARTER, 1, &nvm_version); /* gPHY firmware version is reported as PHY FW version */ gphy_version = igc_read_phy_fw_version(hw); scnprintf(adapter->fw_version, sizeof(adapter->fw_version), "%x:%x", nvm_version, gphy_version); strscpy(drvinfo->fw_version, adapter->fw_version, sizeof(drvinfo->fw_version)); strscpy(drvinfo->bus_info, pci_name(adapter->pdev), sizeof(drvinfo->bus_info)); drvinfo->n_priv_flags = IGC_PRIV_FLAGS_STR_LEN; } static int igc_ethtool_get_regs_len(struct net_device *netdev) { return IGC_REGS_LEN * sizeof(u32); } static void igc_ethtool_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p) { struct igc_adapter *adapter = netdev_priv(netdev); struct igc_hw *hw = &adapter->hw; u32 *regs_buff = p; u8 i; memset(p, 0, IGC_REGS_LEN * sizeof(u32)); regs->version = (2u << 24) | (hw->revision_id << 16) | hw->device_id; /* General Registers */ regs_buff[0] = rd32(IGC_CTRL); regs_buff[1] = rd32(IGC_STATUS); regs_buff[2] = rd32(IGC_CTRL_EXT); regs_buff[3] = rd32(IGC_MDIC); regs_buff[4] = rd32(IGC_CONNSW); /* NVM Register */ regs_buff[5] = rd32(IGC_EECD); /* Interrupt */ /* Reading EICS for EICR because they read the * same but EICS does not clear on read */ regs_buff[6] = rd32(IGC_EICS); regs_buff[7] = rd32(IGC_EICS); regs_buff[8] = rd32(IGC_EIMS); regs_buff[9] = rd32(IGC_EIMC); regs_buff[10] = rd32(IGC_EIAC); regs_buff[11] = rd32(IGC_EIAM); /* Reading ICS for ICR because they read the * same but ICS does not clear on read */ regs_buff[12] = rd32(IGC_ICS); regs_buff[13] = rd32(IGC_ICS); regs_buff[14] = rd32(IGC_IMS); regs_buff[15] = rd32(IGC_IMC); regs_buff[16] = rd32(IGC_IAC); regs_buff[17] = rd32(IGC_IAM); /* Flow Control */ regs_buff[18] = rd32(IGC_FCAL); regs_buff[19] = rd32(IGC_FCAH); regs_buff[20] = rd32(IGC_FCTTV); regs_buff[21] = rd32(IGC_FCRTL); regs_buff[22] = rd32(IGC_FCRTH); regs_buff[23] = rd32(IGC_FCRTV); /* Receive */ regs_buff[24] = rd32(IGC_RCTL); regs_buff[25] = rd32(IGC_RXCSUM); regs_buff[26] = rd32(IGC_RLPML); regs_buff[27] = rd32(IGC_RFCTL); /* Transmit */ regs_buff[28] = rd32(IGC_TCTL); regs_buff[29] = rd32(IGC_TIPG); /* Wake Up */ /* MAC */ /* Statistics */ regs_buff[30] = adapter->stats.crcerrs; regs_buff[31] = adapter->stats.algnerrc; regs_buff[32] = adapter->stats.symerrs; regs_buff[33] = adapter->stats.rxerrc; regs_buff[34] = adapter->stats.mpc; regs_buff[35] = adapter->stats.scc; regs_buff[36] = adapter->stats.ecol; regs_buff[37] = adapter->stats.mcc; regs_buff[38] = adapter->stats.latecol; regs_buff[39] = adapter->stats.colc; regs_buff[40] = adapter->stats.dc; regs_buff[41] = adapter->stats.tncrs; regs_buff[42] = adapter->stats.sec; regs_buff[43] = adapter->stats.htdpmc; regs_buff[44] = adapter->stats.rlec; regs_buff[45] = adapter->stats.xonrxc; regs_buff[46] = adapter->stats.xontxc; regs_buff[47] = adapter->stats.xoffrxc; regs_buff[48] = adapter->stats.xofftxc; regs_buff[49] = adapter->stats.fcruc; regs_buff[50] = adapter->stats.prc64; regs_buff[51] = adapter->stats.prc127; regs_buff[52] = adapter->stats.prc255; regs_buff[53] = adapter->stats.prc511; regs_buff[54] = adapter->stats.prc1023; regs_buff[55] = adapter->stats.prc1522; regs_buff[56] = adapter->stats.gprc; regs_buff[57] = adapter->stats.bprc; regs_buff[58] = adapter->stats.mprc; regs_buff[59] = adapter->stats.gptc; regs_buff[60] = adapter->stats.gorc; regs_buff[61] = adapter->stats.gotc; regs_buff[62] = adapter->stats.rnbc; regs_buff[63] = adapter->stats.ruc; regs_buff[64] = adapter->stats.rfc; regs_buff[65] = adapter->stats.roc; regs_buff[66] = adapter->stats.rjc; regs_buff[67] = adapter->stats.mgprc; regs_buff[68] = adapter->stats.mgpdc; regs_buff[69] = adapter->stats.mgptc; regs_buff[70] = adapter->stats.tor; regs_buff[71] = adapter->stats.tot; regs_buff[72] = adapter->stats.tpr; regs_buff[73] = adapter->stats.tpt; regs_buff[74] = adapter->stats.ptc64; regs_buff[75] = adapter->stats.ptc127; regs_buff[76] = adapter->stats.ptc255; regs_buff[77] = adapter->stats.ptc511; regs_buff[78] = adapter->stats.ptc1023; regs_buff[79] = adapter->stats.ptc1522; regs_buff[80] = adapter->stats.mptc; regs_buff[81] = adapter->stats.bptc; regs_buff[82] = adapter->stats.tsctc; regs_buff[83] = adapter->stats.iac; regs_buff[84] = adapter->stats.rpthc; regs_buff[85] = adapter->stats.hgptc; regs_buff[86] = adapter->stats.hgorc; regs_buff[87] = adapter->stats.hgotc; regs_buff[88] = adapter->stats.lenerrs; regs_buff[89] = adapter->stats.scvpc; regs_buff[90] = adapter->stats.hrmpc; for (i = 0; i < 4; i++) regs_buff[91 + i] = rd32(IGC_SRRCTL(i)); for (i = 0; i < 4; i++) regs_buff[95 + i] = rd32(IGC_PSRTYPE(i)); for (i = 0; i < 4; i++) regs_buff[99 + i] = rd32(IGC_RDBAL(i)); for (i = 0; i < 4; i++) regs_buff[103 + i] = rd32(IGC_RDBAH(i)); for (i = 0; i < 4; i++) regs_buff[107 + i] = rd32(IGC_RDLEN(i)); for (i = 0; i < 4; i++) regs_buff[111 + i] = rd32(IGC_RDH(i)); for (i = 0; i < 4; i++) regs_buff[115 + i] = rd32(IGC_RDT(i)); for (i = 0; i < 4; i++) regs_buff[119 + i] = rd32(IGC_RXDCTL(i)); for (i = 0; i < 10; i++) regs_buff[123 + i] = rd32(IGC_EITR(i)); for (i = 0; i < 16; i++) regs_buff[139 + i] = rd32(IGC_RAL(i)); for (i = 0; i < 16; i++) regs_buff[145 + i] = rd32(IGC_RAH(i)); for (i = 0; i < 4; i++) regs_buff[149 + i] = rd32(IGC_TDBAL(i)); for (i = 0; i < 4; i++) regs_buff[152 + i] = rd32(IGC_TDBAH(i)); for (i = 0; i < 4; i++) regs_buff[156 + i] = rd32(IGC_TDLEN(i)); for (i = 0; i < 4; i++) regs_buff[160 + i] = rd32(IGC_TDH(i)); for (i = 0; i < 4; i++) regs_buff[164 + i] = rd32(IGC_TDT(i)); for (i = 0; i < 4; i++) regs_buff[168 + i] = rd32(IGC_TXDCTL(i)); /* XXX: Due to a bug few lines above, RAL and RAH registers are * overwritten. To preserve the ABI, we write these registers again in * regs_buff. */ for (i = 0; i < 16; i++) regs_buff[172 + i] = rd32(IGC_RAL(i)); for (i = 0; i < 16; i++) regs_buff[188 + i] = rd32(IGC_RAH(i)); regs_buff[204] = rd32(IGC_VLANPQF); for (i = 0; i < 8; i++) regs_buff[205 + i] = rd32(IGC_ETQF(i)); regs_buff[213] = adapter->stats.tlpic; regs_buff[214] = adapter->stats.rlpic; } static void igc_ethtool_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) { struct igc_adapter *adapter = netdev_priv(netdev); wol->wolopts = 0; if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED)) return; wol->supported = WAKE_UCAST | WAKE_MCAST | WAKE_BCAST | WAKE_MAGIC | WAKE_PHY; /* apply any specific unsupported masks here */ switch (adapter->hw.device_id) { default: break; } if (adapter->wol & IGC_WUFC_EX) wol->wolopts |= WAKE_UCAST; if (adapter->wol & IGC_WUFC_MC) wol->wolopts |= WAKE_MCAST; if (adapter->wol & IGC_WUFC_BC) wol->wolopts |= WAKE_BCAST; if (adapter->wol & IGC_WUFC_MAG) wol->wolopts |= WAKE_MAGIC; if (adapter->wol & IGC_WUFC_LNKC) wol->wolopts |= WAKE_PHY; } static int igc_ethtool_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) { struct igc_adapter *adapter = netdev_priv(netdev); if (wol->wolopts & (WAKE_ARP | WAKE_MAGICSECURE | WAKE_FILTER)) return -EOPNOTSUPP; if (!(adapter->flags & IGC_FLAG_WOL_SUPPORTED)) return wol->wolopts ? -EOPNOTSUPP : 0; /* these settings will always override what we currently have */ adapter->wol = 0; if (wol->wolopts & WAKE_UCAST) adapter->wol |= IGC_WUFC_EX; if (wol->wolopts & WAKE_MCAST) adapter->wol |= IGC_WUFC_MC; if (wol->wolopts & WAKE_BCAST) adapter->wol |= IGC_WUFC_BC; if (wol->wolopts & WAKE_MAGIC) adapter->wol |= IGC_WUFC_MAG; if (wol->wolopts & WAKE_PHY) adapter->wol |= IGC_WUFC_LNKC; device_set_wakeup_enable(&adapter->pdev->dev, adapter->wol); return 0; } static u32 igc_ethtool_get_msglevel(struct net_device *netdev) { struct igc_adapter *adapter = netdev_priv(netdev); return adapter->msg_enable; } static void igc_ethtool_set_msglevel(struct net_device *netdev, u32 data) { struct igc_adapter *adapter = netdev_priv(netdev); adapter->msg_enable = data; } static int igc_ethtool_nway_reset(struct net_device *netdev) { struct igc_adapter *adapter = netdev_priv(netdev); if (netif_running(netdev)) igc_reinit_locked(adapter); return 0; } static u32 igc_ethtool_get_link(struct net_device *netdev) { struct igc_adapter *adapter = netdev_priv(netdev); struct igc_mac_info *mac = &adapter->hw.mac; /* If the link is not reported up to netdev, interrupts are disabled, * and so the physical link state may have changed since we last * looked. Set get_link_status to make sure that the true link * state is interrogated, rather than pulling a cached and possibly * stale link state from the driver. */ if (!netif_carrier_ok(netdev)) mac->get_link_status = 1; return igc_has_link(adapter); } static int igc_ethtool_get_eeprom_len(struct net_device *netdev) { struct igc_adapter *adapter = netdev_priv(netdev); return adapter->hw.nvm.word_size * 2; } static int igc_ethtool_get_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom, u8 *bytes) { struct igc_adapter *adapter = netdev_priv(netdev); struct igc_hw *hw = &adapter->hw; int first_word, last_word; u16 *eeprom_buff; int ret_val = 0; u16 i; if (eeprom->len == 0) return -EINVAL; eeprom->magic = hw->vendor_id | (hw->device_id << 16); first_word = eeprom->offset >> 1; last_word = (eeprom->offset + eeprom->len - 1) >> 1; eeprom_buff = kmalloc_array(last_word - first_word + 1, sizeof(u16), GFP_KERNEL); if (!eeprom_buff) return -ENOMEM; if (hw->nvm.type == igc_nvm_eeprom_spi) { ret_val = hw->nvm.ops.read(hw, first_word, last_word - first_word + 1, eeprom_buff); } else { for (i = 0; i < last_word - first_word + 1; i++) { ret_val = hw->nvm.ops.read(hw, first_word + i, 1, &eeprom_buff[i]); if (ret_val) break; } } /* Device's eeprom is always little-endian, word addressable */ for (i = 0; i < last_word - first_word + 1; i++) le16_to_cpus(&eeprom_buff[i]); memcpy(bytes, (u8 *)eeprom_buff + (eeprom->offset & 1), eeprom->len); kfree(eeprom_buff); return ret_val; } static int igc_ethtool_set_eeprom(struct net_device *netdev, struct ethtool_eeprom *eeprom, u8 *bytes) { struct igc_adapter *adapter = netdev_priv(netdev); struct igc_hw *hw = &adapter->hw; int max_len, first_word, last_word, ret_val = 0; u16 *eeprom_buff; void *ptr; u16 i; if (eeprom->len == 0) return -EOPNOTSUPP; if (hw->mac.type >= igc_i225 && !igc_get_flash_presence_i225(hw)) { return -EOPNOTSUPP; } if (eeprom->magic != (hw->vendor_id | (hw->device_id << 16))) return -EFAULT; max_len = hw->nvm.word_size * 2; first_word = eeprom->offset >> 1; last_word = (eeprom->offset + eeprom->len - 1) >> 1; eeprom_buff = kmalloc(max_len, GFP_KERNEL); if (!eeprom_buff) return -ENOMEM; ptr = (void *)eeprom_buff; if (eeprom->offset & 1) { /* need read/modify/write of first changed EEPROM word * only the second byte of the word is being modified */ ret_val = hw->nvm.ops.read(hw, first_word, 1, &eeprom_buff[0]); ptr++; } if (((eeprom->offset + eeprom->len) & 1) && ret_val == 0) { /* need read/modify/write of last changed EEPROM word * only the first byte of the word is being modified */ ret_val = hw->nvm.ops.read(hw, last_word, 1, &eeprom_buff[last_word - first_word]); } /* Device's eeprom is always little-endian, word addressable */ for (i = 0; i < last_word - first_word + 1; i++) le16_to_cpus(&eeprom_buff[i]); memcpy(ptr, bytes, eeprom->len); for (i = 0; i < last_word - first_word + 1; i++) cpu_to_le16s(&eeprom_buff[i]); ret_val = hw->nvm.ops.write(hw, first_word, last_word - first_word + 1, eeprom_buff); /* Update the checksum if nvm write succeeded */ if (ret_val == 0) hw->nvm.ops.update(hw); kfree(eeprom_buff); return ret_val; } static void igc_ethtool_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring) { struct igc_adapter *adapter = netdev_priv(netdev); ring->rx_max_pending = IGC_MAX_RXD; ring->tx_max_pending = IGC_MAX_TXD; ring->rx_pending = adapter->rx_ring_count; ring->tx_pending = adapter->tx_ring_count; } static int igc_ethtool_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring) { struct igc_adapter *adapter = netdev_priv(netdev); struct igc_ring *temp_ring; u16 new_rx_count, new_tx_count; int i, err = 0; if (ring->rx_mini_pending || ring->rx_jumbo_pending) return -EINVAL; new_rx_count = min_t(u32, ring->rx_pending, IGC_MAX_RXD); new_rx_count = max_t(u16, new_rx_count, IGC_MIN_RXD); new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE); new_tx_count = min_t(u32, ring->tx_pending, IGC_MAX_TXD); new_tx_count = max_t(u16, new_tx_count, IGC_MIN_TXD); new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE); if (new_tx_count == adapter->tx_ring_count && new_rx_count == adapter->rx_ring_count) { /* nothing to do */ return 0; } while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) usleep_range(1000, 2000); if (!netif_running(adapter->netdev)) { for (i = 0; i < adapter->num_tx_queues; i++) adapter->tx_ring[i]->count = new_tx_count; for (i = 0; i < adapter->num_rx_queues; i++) adapter->rx_ring[i]->count = new_rx_count; adapter->tx_ring_count = new_tx_count; adapter->rx_ring_count = new_rx_count; goto clear_reset; } if (adapter->num_tx_queues > adapter->num_rx_queues) temp_ring = vmalloc(array_size(sizeof(struct igc_ring), adapter->num_tx_queues)); else temp_ring = vmalloc(array_size(sizeof(struct igc_ring), adapter->num_rx_queues)); if (!temp_ring) { err = -ENOMEM; goto clear_reset; } igc_down(adapter); /* We can't just free everything and then setup again, * because the ISRs in MSI-X mode get passed pointers * to the Tx and Rx ring structs. */ if (new_tx_count != adapter->tx_ring_count) { for (i = 0; i < adapter->num_tx_queues; i++) { memcpy(&temp_ring[i], adapter->tx_ring[i], sizeof(struct igc_ring)); temp_ring[i].count = new_tx_count; err = igc_setup_tx_resources(&temp_ring[i]); if (err) { while (i) { i--; igc_free_tx_resources(&temp_ring[i]); } goto err_setup; } } for (i = 0; i < adapter->num_tx_queues; i++) { igc_free_tx_resources(adapter->tx_ring[i]); memcpy(adapter->tx_ring[i], &temp_ring[i], sizeof(struct igc_ring)); } adapter->tx_ring_count = new_tx_count; } if (new_rx_count != adapter->rx_ring_count) { for (i = 0; i < adapter->num_rx_queues; i++) { memcpy(&temp_ring[i], adapter->rx_ring[i], sizeof(struct igc_ring)); temp_ring[i].count = new_rx_count; err = igc_setup_rx_resources(&temp_ring[i]); if (err) { while (i) { i--; igc_free_rx_resources(&temp_ring[i]); } goto err_setup; } } for (i = 0; i < adapter->num_rx_queues; i++) { igc_free_rx_resources(adapter->rx_ring[i]); memcpy(adapter->rx_ring[i], &temp_ring[i], sizeof(struct igc_ring)); } adapter->rx_ring_count = new_rx_count; } err_setup: igc_up(adapter); vfree(temp_ring); clear_reset: clear_bit(__IGC_RESETTING, &adapter->state); return err; } static void igc_ethtool_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) { struct igc_adapter *adapter = netdev_priv(netdev); struct igc_hw *hw = &adapter->hw; pause->autoneg = (adapter->fc_autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE); if (hw->fc.current_mode == igc_fc_rx_pause) { pause->rx_pause = 1; } else if (hw->fc.current_mode == igc_fc_tx_pause) { pause->tx_pause = 1; } else if (hw->fc.current_mode == igc_fc_full) { pause->rx_pause = 1; pause->tx_pause = 1; } } static int igc_ethtool_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *pause) { struct igc_adapter *adapter = netdev_priv(netdev); struct igc_hw *hw = &adapter->hw; int retval = 0; adapter->fc_autoneg = pause->autoneg; while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) usleep_range(1000, 2000); if (adapter->fc_autoneg == AUTONEG_ENABLE) { hw->fc.requested_mode = igc_fc_default; if (netif_running(adapter->netdev)) { igc_down(adapter); igc_up(adapter); } else { igc_reset(adapter); } } else { if (pause->rx_pause && pause->tx_pause) hw->fc.requested_mode = igc_fc_full; else if (pause->rx_pause && !pause->tx_pause) hw->fc.requested_mode = igc_fc_rx_pause; else if (!pause->rx_pause && pause->tx_pause) hw->fc.requested_mode = igc_fc_tx_pause; else if (!pause->rx_pause && !pause->tx_pause) hw->fc.requested_mode = igc_fc_none; hw->fc.current_mode = hw->fc.requested_mode; retval = ((hw->phy.media_type == igc_media_type_copper) ? igc_force_mac_fc(hw) : igc_setup_link(hw)); } clear_bit(__IGC_RESETTING, &adapter->state); return retval; } static void igc_ethtool_get_strings(struct net_device *netdev, u32 stringset, u8 *data) { struct igc_adapter *adapter = netdev_priv(netdev); u8 *p = data; int i; switch (stringset) { case ETH_SS_TEST: memcpy(data, *igc_gstrings_test, IGC_TEST_LEN * ETH_GSTRING_LEN); break; case ETH_SS_STATS: for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) ethtool_sprintf(&p, igc_gstrings_stats[i].stat_string); for (i = 0; i < IGC_NETDEV_STATS_LEN; i++) ethtool_sprintf(&p, igc_gstrings_net_stats[i].stat_string); for (i = 0; i < adapter->num_tx_queues; i++) { ethtool_sprintf(&p, "tx_queue_%u_packets", i); ethtool_sprintf(&p, "tx_queue_%u_bytes", i); ethtool_sprintf(&p, "tx_queue_%u_restart", i); } for (i = 0; i < adapter->num_rx_queues; i++) { ethtool_sprintf(&p, "rx_queue_%u_packets", i); ethtool_sprintf(&p, "rx_queue_%u_bytes", i); ethtool_sprintf(&p, "rx_queue_%u_drops", i); ethtool_sprintf(&p, "rx_queue_%u_csum_err", i); ethtool_sprintf(&p, "rx_queue_%u_alloc_failed", i); } /* BUG_ON(p - data != IGC_STATS_LEN * ETH_GSTRING_LEN); */ break; case ETH_SS_PRIV_FLAGS: memcpy(data, igc_priv_flags_strings, IGC_PRIV_FLAGS_STR_LEN * ETH_GSTRING_LEN); break; } } static int igc_ethtool_get_sset_count(struct net_device *netdev, int sset) { switch (sset) { case ETH_SS_STATS: return IGC_STATS_LEN; case ETH_SS_TEST: return IGC_TEST_LEN; case ETH_SS_PRIV_FLAGS: return IGC_PRIV_FLAGS_STR_LEN; default: return -ENOTSUPP; } } static void igc_ethtool_get_stats(struct net_device *netdev, struct ethtool_stats *stats, u64 *data) { struct igc_adapter *adapter = netdev_priv(netdev); struct rtnl_link_stats64 *net_stats = &adapter->stats64; unsigned int start; struct igc_ring *ring; int i, j; char *p; spin_lock(&adapter->stats64_lock); igc_update_stats(adapter); for (i = 0; i < IGC_GLOBAL_STATS_LEN; i++) { p = (char *)adapter + igc_gstrings_stats[i].stat_offset; data[i] = (igc_gstrings_stats[i].sizeof_stat == sizeof(u64)) ? *(u64 *)p : *(u32 *)p; } for (j = 0; j < IGC_NETDEV_STATS_LEN; j++, i++) { p = (char *)net_stats + igc_gstrings_net_stats[j].stat_offset; data[i] = (igc_gstrings_net_stats[j].sizeof_stat == sizeof(u64)) ? *(u64 *)p : *(u32 *)p; } for (j = 0; j < adapter->num_tx_queues; j++) { u64 restart2; ring = adapter->tx_ring[j]; do { start = u64_stats_fetch_begin_irq(&ring->tx_syncp); data[i] = ring->tx_stats.packets; data[i + 1] = ring->tx_stats.bytes; data[i + 2] = ring->tx_stats.restart_queue; } while (u64_stats_fetch_retry_irq(&ring->tx_syncp, start)); do { start = u64_stats_fetch_begin_irq(&ring->tx_syncp2); restart2 = ring->tx_stats.restart_queue2; } while (u64_stats_fetch_retry_irq(&ring->tx_syncp2, start)); data[i + 2] += restart2; i += IGC_TX_QUEUE_STATS_LEN; } for (j = 0; j < adapter->num_rx_queues; j++) { ring = adapter->rx_ring[j]; do { start = u64_stats_fetch_begin_irq(&ring->rx_syncp); data[i] = ring->rx_stats.packets; data[i + 1] = ring->rx_stats.bytes; data[i + 2] = ring->rx_stats.drops; data[i + 3] = ring->rx_stats.csum_err; data[i + 4] = ring->rx_stats.alloc_failed; } while (u64_stats_fetch_retry_irq(&ring->rx_syncp, start)); i += IGC_RX_QUEUE_STATS_LEN; } spin_unlock(&adapter->stats64_lock); } static int igc_ethtool_get_previous_rx_coalesce(struct igc_adapter *adapter) { return (adapter->rx_itr_setting <= 3) ? adapter->rx_itr_setting : adapter->rx_itr_setting >> 2; } static int igc_ethtool_get_previous_tx_coalesce(struct igc_adapter *adapter) { return (adapter->tx_itr_setting <= 3) ? adapter->tx_itr_setting : adapter->tx_itr_setting >> 2; } static int igc_ethtool_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec, struct kernel_ethtool_coalesce *kernel_coal, struct netlink_ext_ack *extack) { struct igc_adapter *adapter = netdev_priv(netdev); ec->rx_coalesce_usecs = igc_ethtool_get_previous_rx_coalesce(adapter); ec->tx_coalesce_usecs = igc_ethtool_get_previous_tx_coalesce(adapter); return 0; } static int igc_ethtool_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *ec, struct kernel_ethtool_coalesce *kernel_coal, struct netlink_ext_ack *extack) { struct igc_adapter *adapter = netdev_priv(netdev); int i; if (ec->rx_coalesce_usecs > IGC_MAX_ITR_USECS || (ec->rx_coalesce_usecs > 3 && ec->rx_coalesce_usecs < IGC_MIN_ITR_USECS) || ec->rx_coalesce_usecs == 2) return -EINVAL; if (ec->tx_coalesce_usecs > IGC_MAX_ITR_USECS || (ec->tx_coalesce_usecs > 3 && ec->tx_coalesce_usecs < IGC_MIN_ITR_USECS) || ec->tx_coalesce_usecs == 2) return -EINVAL; if ((adapter->flags & IGC_FLAG_QUEUE_PAIRS) && ec->tx_coalesce_usecs != igc_ethtool_get_previous_tx_coalesce(adapter)) { NL_SET_ERR_MSG_MOD(extack, "Queue Pair mode enabled, both Rx and Tx coalescing controlled by rx-usecs"); return -EINVAL; } /* If ITR is disabled, disable DMAC */ if (ec->rx_coalesce_usecs == 0) { if (adapter->flags & IGC_FLAG_DMAC) adapter->flags &= ~IGC_FLAG_DMAC; } /* convert to rate of irq's per second */ if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3) adapter->rx_itr_setting = ec->rx_coalesce_usecs; else adapter->rx_itr_setting = ec->rx_coalesce_usecs << 2; /* convert to rate of irq's per second */ if (adapter->flags & IGC_FLAG_QUEUE_PAIRS) adapter->tx_itr_setting = adapter->rx_itr_setting; else if (ec->tx_coalesce_usecs && ec->tx_coalesce_usecs <= 3) adapter->tx_itr_setting = ec->tx_coalesce_usecs; else adapter->tx_itr_setting = ec->tx_coalesce_usecs << 2; for (i = 0; i < adapter->num_q_vectors; i++) { struct igc_q_vector *q_vector = adapter->q_vector[i]; q_vector->tx.work_limit = adapter->tx_work_limit; if (q_vector->rx.ring) q_vector->itr_val = adapter->rx_itr_setting; else q_vector->itr_val = adapter->tx_itr_setting; if (q_vector->itr_val && q_vector->itr_val <= 3) q_vector->itr_val = IGC_START_ITR; q_vector->set_itr = 1; } return 0; } #define ETHER_TYPE_FULL_MASK ((__force __be16)~0) #define VLAN_TCI_FULL_MASK ((__force __be16)~0) static int igc_ethtool_get_nfc_rule(struct igc_adapter *adapter, struct ethtool_rxnfc *cmd) { struct ethtool_rx_flow_spec *fsp = &cmd->fs; struct igc_nfc_rule *rule = NULL; cmd->data = IGC_MAX_RXNFC_RULES; mutex_lock(&adapter->nfc_rule_lock); rule = igc_get_nfc_rule(adapter, fsp->location); if (!rule) goto out; fsp->flow_type = ETHER_FLOW; fsp->ring_cookie = rule->action; if (rule->filter.match_flags & IGC_FILTER_FLAG_ETHER_TYPE) { fsp->h_u.ether_spec.h_proto = htons(rule->filter.etype); fsp->m_u.ether_spec.h_proto = ETHER_TYPE_FULL_MASK; } if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) { fsp->flow_type |= FLOW_EXT; fsp->h_ext.vlan_etype = rule->filter.vlan_etype; fsp->m_ext.vlan_etype = ETHER_TYPE_FULL_MASK; } if (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) { fsp->flow_type |= FLOW_EXT; fsp->h_ext.vlan_tci = htons(rule->filter.vlan_tci); fsp->m_ext.vlan_tci = htons(rule->filter.vlan_tci_mask); } if (rule->filter.match_flags & IGC_FILTER_FLAG_DST_MAC_ADDR) { ether_addr_copy(fsp->h_u.ether_spec.h_dest, rule->filter.dst_addr); eth_broadcast_addr(fsp->m_u.ether_spec.h_dest); } if (rule->filter.match_flags & IGC_FILTER_FLAG_SRC_MAC_ADDR) { ether_addr_copy(fsp->h_u.ether_spec.h_source, rule->filter.src_addr); eth_broadcast_addr(fsp->m_u.ether_spec.h_source); } if (rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) { fsp->flow_type |= FLOW_EXT; memcpy(fsp->h_ext.data, rule->filter.user_data, sizeof(fsp->h_ext.data)); memcpy(fsp->m_ext.data, rule->filter.user_mask, sizeof(fsp->m_ext.data)); } mutex_unlock(&adapter->nfc_rule_lock); return 0; out: mutex_unlock(&adapter->nfc_rule_lock); return -EINVAL; } static int igc_ethtool_get_nfc_rules(struct igc_adapter *adapter, struct ethtool_rxnfc *cmd, u32 *rule_locs) { struct igc_nfc_rule *rule; int cnt = 0; cmd->data = IGC_MAX_RXNFC_RULES; mutex_lock(&adapter->nfc_rule_lock); list_for_each_entry(rule, &adapter->nfc_rule_list, list) { if (cnt == cmd->rule_cnt) { mutex_unlock(&adapter->nfc_rule_lock); return -EMSGSIZE; } rule_locs[cnt] = rule->location; cnt++; } mutex_unlock(&adapter->nfc_rule_lock); cmd->rule_cnt = cnt; return 0; } static int igc_ethtool_get_rss_hash_opts(struct igc_adapter *adapter, struct ethtool_rxnfc *cmd) { cmd->data = 0; /* Report default options for RSS on igc */ switch (cmd->flow_type) { case TCP_V4_FLOW: cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; fallthrough; case UDP_V4_FLOW: if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; fallthrough; case SCTP_V4_FLOW: case AH_ESP_V4_FLOW: case AH_V4_FLOW: case ESP_V4_FLOW: case IPV4_FLOW: cmd->data |= RXH_IP_SRC | RXH_IP_DST; break; case TCP_V6_FLOW: cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; fallthrough; case UDP_V6_FLOW: if (adapter->flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; fallthrough; case SCTP_V6_FLOW: case AH_ESP_V6_FLOW: case AH_V6_FLOW: case ESP_V6_FLOW: case IPV6_FLOW: cmd->data |= RXH_IP_SRC | RXH_IP_DST; break; default: return -EINVAL; } return 0; } static int igc_ethtool_get_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd, u32 *rule_locs) { struct igc_adapter *adapter = netdev_priv(dev); switch (cmd->cmd) { case ETHTOOL_GRXRINGS: cmd->data = adapter->num_rx_queues; return 0; case ETHTOOL_GRXCLSRLCNT: cmd->rule_cnt = adapter->nfc_rule_count; return 0; case ETHTOOL_GRXCLSRULE: return igc_ethtool_get_nfc_rule(adapter, cmd); case ETHTOOL_GRXCLSRLALL: return igc_ethtool_get_nfc_rules(adapter, cmd, rule_locs); case ETHTOOL_GRXFH: return igc_ethtool_get_rss_hash_opts(adapter, cmd); default: return -EOPNOTSUPP; } } #define UDP_RSS_FLAGS (IGC_FLAG_RSS_FIELD_IPV4_UDP | \ IGC_FLAG_RSS_FIELD_IPV6_UDP) static int igc_ethtool_set_rss_hash_opt(struct igc_adapter *adapter, struct ethtool_rxnfc *nfc) { u32 flags = adapter->flags; /* RSS does not support anything other than hashing * to queues on src and dst IPs and ports */ if (nfc->data & ~(RXH_IP_SRC | RXH_IP_DST | RXH_L4_B_0_1 | RXH_L4_B_2_3)) return -EINVAL; switch (nfc->flow_type) { case TCP_V4_FLOW: case TCP_V6_FLOW: if (!(nfc->data & RXH_IP_SRC) || !(nfc->data & RXH_IP_DST) || !(nfc->data & RXH_L4_B_0_1) || !(nfc->data & RXH_L4_B_2_3)) return -EINVAL; break; case UDP_V4_FLOW: if (!(nfc->data & RXH_IP_SRC) || !(nfc->data & RXH_IP_DST)) return -EINVAL; switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { case 0: flags &= ~IGC_FLAG_RSS_FIELD_IPV4_UDP; break; case (RXH_L4_B_0_1 | RXH_L4_B_2_3): flags |= IGC_FLAG_RSS_FIELD_IPV4_UDP; break; default: return -EINVAL; } break; case UDP_V6_FLOW: if (!(nfc->data & RXH_IP_SRC) || !(nfc->data & RXH_IP_DST)) return -EINVAL; switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { case 0: flags &= ~IGC_FLAG_RSS_FIELD_IPV6_UDP; break; case (RXH_L4_B_0_1 | RXH_L4_B_2_3): flags |= IGC_FLAG_RSS_FIELD_IPV6_UDP; break; default: return -EINVAL; } break; case AH_ESP_V4_FLOW: case AH_V4_FLOW: case ESP_V4_FLOW: case SCTP_V4_FLOW: case AH_ESP_V6_FLOW: case AH_V6_FLOW: case ESP_V6_FLOW: case SCTP_V6_FLOW: if (!(nfc->data & RXH_IP_SRC) || !(nfc->data & RXH_IP_DST) || (nfc->data & RXH_L4_B_0_1) || (nfc->data & RXH_L4_B_2_3)) return -EINVAL; break; default: return -EINVAL; } /* if we changed something we need to update flags */ if (flags != adapter->flags) { struct igc_hw *hw = &adapter->hw; u32 mrqc = rd32(IGC_MRQC); if ((flags & UDP_RSS_FLAGS) && !(adapter->flags & UDP_RSS_FLAGS)) netdev_err(adapter->netdev, "Enabling UDP RSS: fragmented packets may arrive out of order to the stack above\n"); adapter->flags = flags; /* Perform hash on these packet types */ mrqc |= IGC_MRQC_RSS_FIELD_IPV4 | IGC_MRQC_RSS_FIELD_IPV4_TCP | IGC_MRQC_RSS_FIELD_IPV6 | IGC_MRQC_RSS_FIELD_IPV6_TCP; mrqc &= ~(IGC_MRQC_RSS_FIELD_IPV4_UDP | IGC_MRQC_RSS_FIELD_IPV6_UDP); if (flags & IGC_FLAG_RSS_FIELD_IPV4_UDP) mrqc |= IGC_MRQC_RSS_FIELD_IPV4_UDP; if (flags & IGC_FLAG_RSS_FIELD_IPV6_UDP) mrqc |= IGC_MRQC_RSS_FIELD_IPV6_UDP; wr32(IGC_MRQC, mrqc); } return 0; } static void igc_ethtool_init_nfc_rule(struct igc_nfc_rule *rule, const struct ethtool_rx_flow_spec *fsp) { INIT_LIST_HEAD(&rule->list); rule->action = fsp->ring_cookie; rule->location = fsp->location; if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci) { rule->filter.vlan_tci = ntohs(fsp->h_ext.vlan_tci); rule->filter.vlan_tci_mask = ntohs(fsp->m_ext.vlan_tci); rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_TCI; } if (fsp->m_u.ether_spec.h_proto == ETHER_TYPE_FULL_MASK) { rule->filter.etype = ntohs(fsp->h_u.ether_spec.h_proto); rule->filter.match_flags = IGC_FILTER_FLAG_ETHER_TYPE; } /* Both source and destination address filters only support the full * mask. */ if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_source)) { rule->filter.match_flags |= IGC_FILTER_FLAG_SRC_MAC_ADDR; ether_addr_copy(rule->filter.src_addr, fsp->h_u.ether_spec.h_source); } if (is_broadcast_ether_addr(fsp->m_u.ether_spec.h_dest)) { rule->filter.match_flags |= IGC_FILTER_FLAG_DST_MAC_ADDR; ether_addr_copy(rule->filter.dst_addr, fsp->h_u.ether_spec.h_dest); } /* VLAN etype matching */ if ((fsp->flow_type & FLOW_EXT) && fsp->h_ext.vlan_etype) { rule->filter.vlan_etype = fsp->h_ext.vlan_etype; rule->filter.match_flags |= IGC_FILTER_FLAG_VLAN_ETYPE; } /* Check for user defined data */ if ((fsp->flow_type & FLOW_EXT) && (fsp->h_ext.data[0] || fsp->h_ext.data[1])) { rule->filter.match_flags |= IGC_FILTER_FLAG_USER_DATA; memcpy(rule->filter.user_data, fsp->h_ext.data, sizeof(fsp->h_ext.data)); memcpy(rule->filter.user_mask, fsp->m_ext.data, sizeof(fsp->m_ext.data)); } /* The i225/i226 has various different filters. Flex filters provide a * way to match up to the first 128 bytes of a packet. Use them for: * a) For specific user data * b) For VLAN EtherType * c) For full TCI match * d) Or in case multiple filter criteria are set * * Otherwise, use the simple MAC, VLAN PRIO or EtherType filters. */ if ((rule->filter.match_flags & IGC_FILTER_FLAG_USER_DATA) || (rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_ETYPE) || ((rule->filter.match_flags & IGC_FILTER_FLAG_VLAN_TCI) && rule->filter.vlan_tci_mask == ntohs(VLAN_TCI_FULL_MASK)) || (rule->filter.match_flags & (rule->filter.match_flags - 1))) rule->flex = true; else rule->flex = false; } /** * igc_ethtool_check_nfc_rule() - Check if NFC rule is valid * @adapter: Pointer to adapter * @rule: Rule under evaluation * * The driver doesn't support rules with multiple matches so if more than * one bit in filter flags is set, @rule is considered invalid. * * Also, if there is already another rule with the same filter in a different * location, @rule is considered invalid. * * Context: Expects adapter->nfc_rule_lock to be held by caller. * * Return: 0 in case of success, negative errno code otherwise. */ static int igc_ethtool_check_nfc_rule(struct igc_adapter *adapter, struct igc_nfc_rule *rule) { struct net_device *dev = adapter->netdev; u8 flags = rule->filter.match_flags; struct igc_nfc_rule *tmp; if (!flags) { netdev_dbg(dev, "Rule with no match\n"); return -EINVAL; } list_for_each_entry(tmp, &adapter->nfc_rule_list, list) { if (!memcmp(&rule->filter, &tmp->filter, sizeof(rule->filter)) && tmp->location != rule->location) { netdev_dbg(dev, "Rule already exists\n"); return -EEXIST; } } return 0; } static int igc_ethtool_add_nfc_rule(struct igc_adapter *adapter, struct ethtool_rxnfc *cmd) { struct net_device *netdev = adapter->netdev; struct ethtool_rx_flow_spec *fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; struct igc_nfc_rule *rule, *old_rule; int err; if (!(netdev->hw_features & NETIF_F_NTUPLE)) { netdev_dbg(netdev, "N-tuple filters disabled\n"); return -EOPNOTSUPP; } if ((fsp->flow_type & ~FLOW_EXT) != ETHER_FLOW) { netdev_dbg(netdev, "Only ethernet flow type is supported\n"); return -EOPNOTSUPP; } if (fsp->ring_cookie >= adapter->num_rx_queues) { netdev_dbg(netdev, "Invalid action\n"); return -EINVAL; } /* There are two ways to match the VLAN TCI: * 1. Match on PCP field and use vlan prio filter for it * 2. Match on complete TCI field and use flex filter for it */ if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_tci && fsp->m_ext.vlan_tci != htons(VLAN_PRIO_MASK) && fsp->m_ext.vlan_tci != VLAN_TCI_FULL_MASK) { netdev_dbg(netdev, "VLAN mask not supported\n"); return -EOPNOTSUPP; } /* VLAN EtherType can only be matched by full mask. */ if ((fsp->flow_type & FLOW_EXT) && fsp->m_ext.vlan_etype && fsp->m_ext.vlan_etype != ETHER_TYPE_FULL_MASK) { netdev_dbg(netdev, "VLAN EtherType mask not supported\n"); return -EOPNOTSUPP; } if (fsp->location >= IGC_MAX_RXNFC_RULES) { netdev_dbg(netdev, "Invalid location\n"); return -EINVAL; } rule = kzalloc(sizeof(*rule), GFP_KERNEL); if (!rule) return -ENOMEM; igc_ethtool_init_nfc_rule(rule, fsp); mutex_lock(&adapter->nfc_rule_lock); err = igc_ethtool_check_nfc_rule(adapter, rule); if (err) goto err; old_rule = igc_get_nfc_rule(adapter, fsp->location); if (old_rule) igc_del_nfc_rule(adapter, old_rule); err = igc_add_nfc_rule(adapter, rule); if (err) goto err; mutex_unlock(&adapter->nfc_rule_lock); return 0; err: mutex_unlock(&adapter->nfc_rule_lock); kfree(rule); return err; } static int igc_ethtool_del_nfc_rule(struct igc_adapter *adapter, struct ethtool_rxnfc *cmd) { struct ethtool_rx_flow_spec *fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; struct igc_nfc_rule *rule; mutex_lock(&adapter->nfc_rule_lock); rule = igc_get_nfc_rule(adapter, fsp->location); if (!rule) { mutex_unlock(&adapter->nfc_rule_lock); return -EINVAL; } igc_del_nfc_rule(adapter, rule); mutex_unlock(&adapter->nfc_rule_lock); return 0; } static int igc_ethtool_set_rxnfc(struct net_device *dev, struct ethtool_rxnfc *cmd) { struct igc_adapter *adapter = netdev_priv(dev); switch (cmd->cmd) { case ETHTOOL_SRXFH: return igc_ethtool_set_rss_hash_opt(adapter, cmd); case ETHTOOL_SRXCLSRLINS: return igc_ethtool_add_nfc_rule(adapter, cmd); case ETHTOOL_SRXCLSRLDEL: return igc_ethtool_del_nfc_rule(adapter, cmd); default: return -EOPNOTSUPP; } } void igc_write_rss_indir_tbl(struct igc_adapter *adapter) { struct igc_hw *hw = &adapter->hw; u32 reg = IGC_RETA(0); u32 shift = 0; int i = 0; while (i < IGC_RETA_SIZE) { u32 val = 0; int j; for (j = 3; j >= 0; j--) { val <<= 8; val |= adapter->rss_indir_tbl[i + j]; } wr32(reg, val << shift); reg += 4; i += 4; } } static u32 igc_ethtool_get_rxfh_indir_size(struct net_device *netdev) { return IGC_RETA_SIZE; } static int igc_ethtool_get_rxfh(struct net_device *netdev, u32 *indir, u8 *key, u8 *hfunc) { struct igc_adapter *adapter = netdev_priv(netdev); int i; if (hfunc) *hfunc = ETH_RSS_HASH_TOP; if (!indir) return 0; for (i = 0; i < IGC_RETA_SIZE; i++) indir[i] = adapter->rss_indir_tbl[i]; return 0; } static int igc_ethtool_set_rxfh(struct net_device *netdev, const u32 *indir, const u8 *key, const u8 hfunc) { struct igc_adapter *adapter = netdev_priv(netdev); u32 num_queues; int i; /* We do not allow change in unsupported parameters */ if (key || (hfunc != ETH_RSS_HASH_NO_CHANGE && hfunc != ETH_RSS_HASH_TOP)) return -EOPNOTSUPP; if (!indir) return 0; num_queues = adapter->rss_queues; /* Verify user input. */ for (i = 0; i < IGC_RETA_SIZE; i++) if (indir[i] >= num_queues) return -EINVAL; for (i = 0; i < IGC_RETA_SIZE; i++) adapter->rss_indir_tbl[i] = indir[i]; igc_write_rss_indir_tbl(adapter); return 0; } static void igc_ethtool_get_channels(struct net_device *netdev, struct ethtool_channels *ch) { struct igc_adapter *adapter = netdev_priv(netdev); /* Report maximum channels */ ch->max_combined = igc_get_max_rss_queues(adapter); /* Report info for other vector */ if (adapter->flags & IGC_FLAG_HAS_MSIX) { ch->max_other = NON_Q_VECTORS; ch->other_count = NON_Q_VECTORS; } ch->combined_count = adapter->rss_queues; } static int igc_ethtool_set_channels(struct net_device *netdev, struct ethtool_channels *ch) { struct igc_adapter *adapter = netdev_priv(netdev); unsigned int count = ch->combined_count; unsigned int max_combined = 0; /* Verify they are not requesting separate vectors */ if (!count || ch->rx_count || ch->tx_count) return -EINVAL; /* Verify other_count is valid and has not been changed */ if (ch->other_count != NON_Q_VECTORS) return -EINVAL; /* Verify the number of channels doesn't exceed hw limits */ max_combined = igc_get_max_rss_queues(adapter); if (count > max_combined) return -EINVAL; if (count != adapter->rss_queues) { adapter->rss_queues = count; igc_set_flag_queue_pairs(adapter, max_combined); /* Hardware has to reinitialize queues and interrupts to * match the new configuration. */ return igc_reinit_queues(adapter); } return 0; } static int igc_ethtool_get_ts_info(struct net_device *dev, struct ethtool_ts_info *info) { struct igc_adapter *adapter = netdev_priv(dev); if (adapter->ptp_clock) info->phc_index = ptp_clock_index(adapter->ptp_clock); else info->phc_index = -1; switch (adapter->hw.mac.type) { case igc_i225: info->so_timestamping = SOF_TIMESTAMPING_TX_SOFTWARE | SOF_TIMESTAMPING_RX_SOFTWARE | SOF_TIMESTAMPING_SOFTWARE | SOF_TIMESTAMPING_TX_HARDWARE | SOF_TIMESTAMPING_RX_HARDWARE | SOF_TIMESTAMPING_RAW_HARDWARE; info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON); info->rx_filters = BIT(HWTSTAMP_FILTER_NONE); info->rx_filters |= BIT(HWTSTAMP_FILTER_ALL); return 0; default: return -EOPNOTSUPP; } } static u32 igc_ethtool_get_priv_flags(struct net_device *netdev) { struct igc_adapter *adapter = netdev_priv(netdev); u32 priv_flags = 0; if (adapter->flags & IGC_FLAG_RX_LEGACY) priv_flags |= IGC_PRIV_FLAGS_LEGACY_RX; return priv_flags; } static int igc_ethtool_set_priv_flags(struct net_device *netdev, u32 priv_flags) { struct igc_adapter *adapter = netdev_priv(netdev); unsigned int flags = adapter->flags; flags &= ~IGC_FLAG_RX_LEGACY; if (priv_flags & IGC_PRIV_FLAGS_LEGACY_RX) flags |= IGC_FLAG_RX_LEGACY; if (flags != adapter->flags) { adapter->flags = flags; /* reset interface to repopulate queues */ if (netif_running(netdev)) igc_reinit_locked(adapter); } return 0; } static int igc_ethtool_get_eee(struct net_device *netdev, struct ethtool_eee *edata) { struct igc_adapter *adapter = netdev_priv(netdev); struct igc_hw *hw = &adapter->hw; u32 eeer; if (hw->dev_spec._base.eee_enable) edata->advertised = mmd_eee_adv_to_ethtool_adv_t(adapter->eee_advert); *edata = adapter->eee; edata->supported = SUPPORTED_Autoneg; eeer = rd32(IGC_EEER); /* EEE status on negotiated link */ if (eeer & IGC_EEER_EEE_NEG) edata->eee_active = true; if (eeer & IGC_EEER_TX_LPI_EN) edata->tx_lpi_enabled = true; edata->eee_enabled = hw->dev_spec._base.eee_enable; edata->advertised = SUPPORTED_Autoneg; edata->lp_advertised = SUPPORTED_Autoneg; /* Report correct negotiated EEE status for devices that * wrongly report EEE at half-duplex */ if (adapter->link_duplex == HALF_DUPLEX) { edata->eee_enabled = false; edata->eee_active = false; edata->tx_lpi_enabled = false; edata->advertised &= ~edata->advertised; } return 0; } static int igc_ethtool_set_eee(struct net_device *netdev, struct ethtool_eee *edata) { struct igc_adapter *adapter = netdev_priv(netdev); struct igc_hw *hw = &adapter->hw; struct ethtool_eee eee_curr; s32 ret_val; memset(&eee_curr, 0, sizeof(struct ethtool_eee)); ret_val = igc_ethtool_get_eee(netdev, &eee_curr); if (ret_val) { netdev_err(netdev, "Problem setting EEE advertisement options\n"); return -EINVAL; } if (eee_curr.eee_enabled) { if (eee_curr.tx_lpi_enabled != edata->tx_lpi_enabled) { netdev_err(netdev, "Setting EEE tx-lpi is not supported\n"); return -EINVAL; } /* Tx LPI timer is not implemented currently */ if (edata->tx_lpi_timer) { netdev_err(netdev, "Setting EEE Tx LPI timer is not supported\n"); return -EINVAL; } } else if (!edata->eee_enabled) { netdev_err(netdev, "Setting EEE options are not supported with EEE disabled\n"); return -EINVAL; } adapter->eee_advert = ethtool_adv_to_mmd_eee_adv_t(edata->advertised); if (hw->dev_spec._base.eee_enable != edata->eee_enabled) { hw->dev_spec._base.eee_enable = edata->eee_enabled; adapter->flags |= IGC_FLAG_EEE; /* reset link */ if (netif_running(netdev)) igc_reinit_locked(adapter); else igc_reset(adapter); } return 0; } static int igc_ethtool_begin(struct net_device *netdev) { struct igc_adapter *adapter = netdev_priv(netdev); pm_runtime_get_sync(&adapter->pdev->dev); return 0; } static void igc_ethtool_complete(struct net_device *netdev) { struct igc_adapter *adapter = netdev_priv(netdev); pm_runtime_put(&adapter->pdev->dev); } static int igc_ethtool_get_link_ksettings(struct net_device *netdev, struct ethtool_link_ksettings *cmd) { struct igc_adapter *adapter = netdev_priv(netdev); struct igc_hw *hw = &adapter->hw; u32 status; u32 speed; ethtool_link_ksettings_zero_link_mode(cmd, supported); ethtool_link_ksettings_zero_link_mode(cmd, advertising); /* supported link modes */ ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Half); ethtool_link_ksettings_add_link_mode(cmd, supported, 10baseT_Full); ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Half); ethtool_link_ksettings_add_link_mode(cmd, supported, 100baseT_Full); ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full); ethtool_link_ksettings_add_link_mode(cmd, supported, 2500baseT_Full); /* twisted pair */ cmd->base.port = PORT_TP; cmd->base.phy_address = hw->phy.addr; ethtool_link_ksettings_add_link_mode(cmd, supported, TP); ethtool_link_ksettings_add_link_mode(cmd, advertising, TP); /* advertising link modes */ if (hw->phy.autoneg_advertised & ADVERTISE_10_HALF) ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half); if (hw->phy.autoneg_advertised & ADVERTISE_10_FULL) ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full); if (hw->phy.autoneg_advertised & ADVERTISE_100_HALF) ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half); if (hw->phy.autoneg_advertised & ADVERTISE_100_FULL) ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full); if (hw->phy.autoneg_advertised & ADVERTISE_1000_FULL) ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full); if (hw->phy.autoneg_advertised & ADVERTISE_2500_FULL) ethtool_link_ksettings_add_link_mode(cmd, advertising, 2500baseT_Full); /* set autoneg settings */ if (hw->mac.autoneg == 1) { ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); } /* Set pause flow control settings */ ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); switch (hw->fc.requested_mode) { case igc_fc_full: ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); break; case igc_fc_rx_pause: ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); ethtool_link_ksettings_add_link_mode(cmd, advertising, Asym_Pause); break; case igc_fc_tx_pause: ethtool_link_ksettings_add_link_mode(cmd, advertising, Asym_Pause); break; default: break; } status = pm_runtime_suspended(&adapter->pdev->dev) ? 0 : rd32(IGC_STATUS); if (status & IGC_STATUS_LU) { if (status & IGC_STATUS_SPEED_1000) { /* For I225, STATUS will indicate 1G speed in both * 1 Gbps and 2.5 Gbps link modes. * An additional bit is used * to differentiate between 1 Gbps and 2.5 Gbps. */ if (hw->mac.type == igc_i225 && (status & IGC_STATUS_SPEED_2500)) { speed = SPEED_2500; } else { speed = SPEED_1000; } } else if (status & IGC_STATUS_SPEED_100) { speed = SPEED_100; } else { speed = SPEED_10; } if ((status & IGC_STATUS_FD) || hw->phy.media_type != igc_media_type_copper) cmd->base.duplex = DUPLEX_FULL; else cmd->base.duplex = DUPLEX_HALF; } else { speed = SPEED_UNKNOWN; cmd->base.duplex = DUPLEX_UNKNOWN; } cmd->base.speed = speed; if (hw->mac.autoneg) cmd->base.autoneg = AUTONEG_ENABLE; else cmd->base.autoneg = AUTONEG_DISABLE; /* MDI-X => 2; MDI =>1; Invalid =>0 */ if (hw->phy.media_type == igc_media_type_copper) cmd->base.eth_tp_mdix = hw->phy.is_mdix ? ETH_TP_MDI_X : ETH_TP_MDI; else cmd->base.eth_tp_mdix = ETH_TP_MDI_INVALID; if (hw->phy.mdix == AUTO_ALL_MODES) cmd->base.eth_tp_mdix_ctrl = ETH_TP_MDI_AUTO; else cmd->base.eth_tp_mdix_ctrl = hw->phy.mdix; return 0; } static int igc_ethtool_set_link_ksettings(struct net_device *netdev, const struct ethtool_link_ksettings *cmd) { struct igc_adapter *adapter = netdev_priv(netdev); struct net_device *dev = adapter->netdev; struct igc_hw *hw = &adapter->hw; u16 advertised = 0; /* When adapter in resetting mode, autoneg/speed/duplex * cannot be changed */ if (igc_check_reset_block(hw)) { netdev_err(dev, "Cannot change link characteristics when reset is active\n"); return -EINVAL; } /* MDI setting is only allowed when autoneg enabled because * some hardware doesn't allow MDI setting when speed or * duplex is forced. */ if (cmd->base.eth_tp_mdix_ctrl) { if (cmd->base.eth_tp_mdix_ctrl != ETH_TP_MDI_AUTO && cmd->base.autoneg != AUTONEG_ENABLE) { netdev_err(dev, "Forcing MDI/MDI-X state is not supported when link speed and/or duplex are forced\n"); return -EINVAL; } } while (test_and_set_bit(__IGC_RESETTING, &adapter->state)) usleep_range(1000, 2000); if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 2500baseT_Full)) advertised |= ADVERTISE_2500_FULL; if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 1000baseT_Full)) advertised |= ADVERTISE_1000_FULL; if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 100baseT_Full)) advertised |= ADVERTISE_100_FULL; if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 100baseT_Half)) advertised |= ADVERTISE_100_HALF; if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 10baseT_Full)) advertised |= ADVERTISE_10_FULL; if (ethtool_link_ksettings_test_link_mode(cmd, advertising, 10baseT_Half)) advertised |= ADVERTISE_10_HALF; if (cmd->base.autoneg == AUTONEG_ENABLE) { hw->mac.autoneg = 1; hw->phy.autoneg_advertised = advertised; if (adapter->fc_autoneg) hw->fc.requested_mode = igc_fc_default; } else { netdev_info(dev, "Force mode currently not supported\n"); } /* MDI-X => 2; MDI => 1; Auto => 3 */ if (cmd->base.eth_tp_mdix_ctrl) { /* fix up the value for auto (3 => 0) as zero is mapped * internally to auto */ if (cmd->base.eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO) hw->phy.mdix = AUTO_ALL_MODES; else hw->phy.mdix = cmd->base.eth_tp_mdix_ctrl; } /* reset the link */ if (netif_running(adapter->netdev)) { igc_down(adapter); igc_up(adapter); } else { igc_reset(adapter); } clear_bit(__IGC_RESETTING, &adapter->state); return 0; } static void igc_ethtool_diag_test(struct net_device *netdev, struct ethtool_test *eth_test, u64 *data) { struct igc_adapter *adapter = netdev_priv(netdev); bool if_running = netif_running(netdev); if (eth_test->flags == ETH_TEST_FL_OFFLINE) { netdev_info(adapter->netdev, "Offline testing starting"); set_bit(__IGC_TESTING, &adapter->state); /* Link test performed before hardware reset so autoneg doesn't * interfere with test result */ if (!igc_link_test(adapter, &data[TEST_LINK])) eth_test->flags |= ETH_TEST_FL_FAILED; if (if_running) igc_close(netdev); else igc_reset(adapter); netdev_info(adapter->netdev, "Register testing starting"); if (!igc_reg_test(adapter, &data[TEST_REG])) eth_test->flags |= ETH_TEST_FL_FAILED; igc_reset(adapter); netdev_info(adapter->netdev, "EEPROM testing starting"); if (!igc_eeprom_test(adapter, &data[TEST_EEP])) eth_test->flags |= ETH_TEST_FL_FAILED; igc_reset(adapter); /* loopback and interrupt tests * will be implemented in the future */ data[TEST_LOOP] = 0; data[TEST_IRQ] = 0; clear_bit(__IGC_TESTING, &adapter->state); if (if_running) igc_open(netdev); } else { netdev_info(adapter->netdev, "Online testing starting"); /* register, eeprom, intr and loopback tests not run online */ data[TEST_REG] = 0; data[TEST_EEP] = 0; data[TEST_IRQ] = 0; data[TEST_LOOP] = 0; if (!igc_link_test(adapter, &data[TEST_LINK])) eth_test->flags |= ETH_TEST_FL_FAILED; } msleep_interruptible(4 * 1000); } static const struct ethtool_ops igc_ethtool_ops = { .supported_coalesce_params = ETHTOOL_COALESCE_USECS, .get_drvinfo = igc_ethtool_get_drvinfo, .get_regs_len = igc_ethtool_get_regs_len, .get_regs = igc_ethtool_get_regs, .get_wol = igc_ethtool_get_wol, .set_wol = igc_ethtool_set_wol, .get_msglevel = igc_ethtool_get_msglevel, .set_msglevel = igc_ethtool_set_msglevel, .nway_reset = igc_ethtool_nway_reset, .get_link = igc_ethtool_get_link, .get_eeprom_len = igc_ethtool_get_eeprom_len, .get_eeprom = igc_ethtool_get_eeprom, .set_eeprom = igc_ethtool_set_eeprom, .get_ringparam = igc_ethtool_get_ringparam, .set_ringparam = igc_ethtool_set_ringparam, .get_pauseparam = igc_ethtool_get_pauseparam, .set_pauseparam = igc_ethtool_set_pauseparam, .get_strings = igc_ethtool_get_strings, .get_sset_count = igc_ethtool_get_sset_count, .get_ethtool_stats = igc_ethtool_get_stats, .get_coalesce = igc_ethtool_get_coalesce, .set_coalesce = igc_ethtool_set_coalesce, .get_rxnfc = igc_ethtool_get_rxnfc, .set_rxnfc = igc_ethtool_set_rxnfc, .get_rxfh_indir_size = igc_ethtool_get_rxfh_indir_size, .get_rxfh = igc_ethtool_get_rxfh, .set_rxfh = igc_ethtool_set_rxfh, .get_ts_info = igc_ethtool_get_ts_info, .get_channels = igc_ethtool_get_channels, .set_channels = igc_ethtool_set_channels, .get_priv_flags = igc_ethtool_get_priv_flags, .set_priv_flags = igc_ethtool_set_priv_flags, .get_eee = igc_ethtool_get_eee, .set_eee = igc_ethtool_set_eee, .begin = igc_ethtool_begin, .complete = igc_ethtool_complete, .get_link_ksettings = igc_ethtool_get_link_ksettings, .set_link_ksettings = igc_ethtool_set_link_ksettings, .self_test = igc_ethtool_diag_test, }; void igc_ethtool_set_ops(struct net_device *netdev) { netdev->ethtool_ops = &igc_ethtool_ops; }