| // SPDX-License-Identifier: GPL-2.0 |
| /* Copyright (c) 2018 Intel Corporation */ |
| |
| /* ethtool support for igc */ |
| #include <linux/pm_runtime.h> |
| |
| #include "igc.h" |
| |
| 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_get_drvinfo(struct net_device *netdev, |
| struct ethtool_drvinfo *drvinfo) |
| { |
| struct igc_adapter *adapter = netdev_priv(netdev); |
| |
| strlcpy(drvinfo->driver, igc_driver_name, sizeof(drvinfo->driver)); |
| strlcpy(drvinfo->version, igc_driver_version, sizeof(drvinfo->version)); |
| |
| /* add fw_version here */ |
| strlcpy(drvinfo->bus_info, pci_name(adapter->pdev), |
| sizeof(drvinfo->bus_info)); |
| |
| drvinfo->n_priv_flags = IGC_PRIV_FLAGS_STR_LEN; |
| } |
| |
| static int igc_get_regs_len(struct net_device *netdev) |
| { |
| return IGC_REGS_LEN * sizeof(u32); |
| } |
| |
| static void igc_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 = (1u << 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)); |
| } |
| |
| static u32 igc_get_msglevel(struct net_device *netdev) |
| { |
| struct igc_adapter *adapter = netdev_priv(netdev); |
| |
| return adapter->msg_enable; |
| } |
| |
| static void igc_set_msglevel(struct net_device *netdev, u32 data) |
| { |
| struct igc_adapter *adapter = netdev_priv(netdev); |
| |
| adapter->msg_enable = data; |
| } |
| |
| static int igc_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_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_get_eeprom_len(struct net_device *netdev) |
| { |
| struct igc_adapter *adapter = netdev_priv(netdev); |
| |
| return adapter->hw.nvm.word_size * 2; |
| } |
| |
| static int igc_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_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++) |
| eeprom_buff[i] = cpu_to_le16(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); |
| |
| /* check if need: igc_set_fw_version(adapter); */ |
| kfree(eeprom_buff); |
| return ret_val; |
| } |
| |
| static void igc_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_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_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_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 int igc_get_coalesce(struct net_device *netdev, |
| struct ethtool_coalesce *ec) |
| { |
| struct igc_adapter *adapter = netdev_priv(netdev); |
| |
| if (adapter->rx_itr_setting <= 3) |
| ec->rx_coalesce_usecs = adapter->rx_itr_setting; |
| else |
| ec->rx_coalesce_usecs = adapter->rx_itr_setting >> 2; |
| |
| if (!(adapter->flags & IGC_FLAG_QUEUE_PAIRS)) { |
| if (adapter->tx_itr_setting <= 3) |
| ec->tx_coalesce_usecs = adapter->tx_itr_setting; |
| else |
| ec->tx_coalesce_usecs = adapter->tx_itr_setting >> 2; |
| } |
| |
| return 0; |
| } |
| |
| static int igc_set_coalesce(struct net_device *netdev, |
| struct ethtool_coalesce *ec) |
| { |
| struct igc_adapter *adapter = netdev_priv(netdev); |
| int i; |
| |
| if (ec->rx_max_coalesced_frames || |
| ec->rx_coalesce_usecs_irq || |
| ec->rx_max_coalesced_frames_irq || |
| ec->tx_max_coalesced_frames || |
| ec->tx_coalesce_usecs_irq || |
| ec->stats_block_coalesce_usecs || |
| ec->use_adaptive_rx_coalesce || |
| ec->use_adaptive_tx_coalesce || |
| ec->pkt_rate_low || |
| ec->rx_coalesce_usecs_low || |
| ec->rx_max_coalesced_frames_low || |
| ec->tx_coalesce_usecs_low || |
| ec->tx_max_coalesced_frames_low || |
| ec->pkt_rate_high || |
| ec->rx_coalesce_usecs_high || |
| ec->rx_max_coalesced_frames_high || |
| ec->tx_coalesce_usecs_high || |
| ec->tx_max_coalesced_frames_high || |
| ec->rate_sample_interval) |
| return -ENOTSUPP; |
| |
| 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) |
| 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; |
| } |
| |
| 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_get_rxfh_indir_size(struct net_device *netdev) |
| { |
| return IGC_RETA_SIZE; |
| } |
| |
| static int igc_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_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 unsigned int igc_max_channels(struct igc_adapter *adapter) |
| { |
| return igc_get_max_rss_queues(adapter); |
| } |
| |
| static void igc_get_channels(struct net_device *netdev, |
| struct ethtool_channels *ch) |
| { |
| struct igc_adapter *adapter = netdev_priv(netdev); |
| |
| /* Report maximum channels */ |
| ch->max_combined = igc_max_channels(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_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_max_channels(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 u32 igc_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_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_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_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; |
| |
| /* advertising link modes */ |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Half); |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, 10baseT_Full); |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Half); |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, 100baseT_Full); |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_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); |
| } |
| |
| 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: |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, Pause); |
| ethtool_link_ksettings_add_link_mode(cmd, advertising, |
| Asym_Pause); |
| } |
| |
| status = 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; |
| hw_dbg("2500 Mbs, "); |
| } else { |
| speed = SPEED_1000; |
| hw_dbg("1000 Mbs, "); |
| } |
| } else if (status & IGC_STATUS_SPEED_100) { |
| speed = SPEED_100; |
| hw_dbg("100 Mbs, "); |
| } else { |
| speed = SPEED_10; |
| hw_dbg("10 Mbs, "); |
| } |
| 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_set_link_ksettings(struct net_device *netdev, |
| const struct ethtool_link_ksettings *cmd) |
| { |
| struct igc_adapter *adapter = netdev_priv(netdev); |
| struct igc_hw *hw = &adapter->hw; |
| u32 advertising; |
| |
| /* When adapter in resetting mode, autoneg/speed/duplex |
| * cannot be changed |
| */ |
| if (igc_check_reset_block(hw)) { |
| dev_err(&adapter->pdev->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) { |
| dev_err(&adapter->pdev->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); |
| |
| ethtool_convert_link_mode_to_legacy_u32(&advertising, |
| cmd->link_modes.advertising); |
| |
| if (cmd->base.autoneg == AUTONEG_ENABLE) { |
| hw->mac.autoneg = 1; |
| hw->phy.autoneg_advertised = advertising; |
| if (adapter->fc_autoneg) |
| hw->fc.requested_mode = igc_fc_default; |
| } else { |
| /* calling this overrides forced MDI setting */ |
| dev_info(&adapter->pdev->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 const struct ethtool_ops igc_ethtool_ops = { |
| .get_drvinfo = igc_get_drvinfo, |
| .get_regs_len = igc_get_regs_len, |
| .get_regs = igc_get_regs, |
| .get_msglevel = igc_get_msglevel, |
| .set_msglevel = igc_set_msglevel, |
| .nway_reset = igc_nway_reset, |
| .get_link = igc_get_link, |
| .get_eeprom_len = igc_get_eeprom_len, |
| .get_eeprom = igc_get_eeprom, |
| .set_eeprom = igc_set_eeprom, |
| .get_ringparam = igc_get_ringparam, |
| .set_ringparam = igc_set_ringparam, |
| .get_pauseparam = igc_get_pauseparam, |
| .set_pauseparam = igc_set_pauseparam, |
| .get_coalesce = igc_get_coalesce, |
| .set_coalesce = igc_set_coalesce, |
| .get_rxfh_indir_size = igc_get_rxfh_indir_size, |
| .get_rxfh = igc_get_rxfh, |
| .set_rxfh = igc_set_rxfh, |
| .get_channels = igc_get_channels, |
| .set_channels = igc_set_channels, |
| .get_priv_flags = igc_get_priv_flags, |
| .set_priv_flags = igc_set_priv_flags, |
| .begin = igc_ethtool_begin, |
| .complete = igc_ethtool_complete, |
| .get_link_ksettings = igc_get_link_ksettings, |
| .set_link_ksettings = igc_set_link_ksettings, |
| }; |
| |
| void igc_set_ethtool_ops(struct net_device *netdev) |
| { |
| netdev->ethtool_ops = &igc_ethtool_ops; |
| } |