diff options
Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/intel/igc/igc_ethtool.c | 1032 |
1 files changed, 1032 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igc/igc_ethtool.c b/drivers/net/ethernet/intel/igc/igc_ethtool.c new file mode 100644 index 000000000000..eff37a6c0afa --- /dev/null +++ b/drivers/net/ethernet/intel/igc/igc_ethtool.c @@ -0,0 +1,1032 @@ +// 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; +} |