diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c')
-rw-r--r-- | drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 338 |
1 files changed, 305 insertions, 33 deletions
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c index 326858424345..c3f1afd86906 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c @@ -1,7 +1,7 @@ /******************************************************************************* Intel 10 Gigabit PCI Express Linux driver - Copyright(c) 1999 - 2012 Intel Corporation. + Copyright(c) 1999 - 2013 Intel Corporation. This program is free software; you can redistribute it and/or modify it under the terms and conditions of the GNU General Public License, @@ -39,6 +39,7 @@ #include <linux/uaccess.h> #include "ixgbe.h" +#include "ixgbe_phy.h" #define IXGBE_ALL_RAR_ENTRIES 16 @@ -156,7 +157,7 @@ static int ixgbe_get_settings(struct net_device *netdev, struct ixgbe_hw *hw = &adapter->hw; ixgbe_link_speed supported_link; u32 link_speed = 0; - bool autoneg; + bool autoneg = false; bool link_up; hw->mac.ops.get_link_capabilities(hw, &supported_link, &autoneg); @@ -333,10 +334,10 @@ static int ixgbe_set_settings(struct net_device *netdev, return err; /* this sets the link speed and restarts auto-neg */ hw->mac.autotry_restart = true; - err = hw->mac.ops.setup_link(hw, advertised, true, true); + err = hw->mac.ops.setup_link(hw, advertised, true); if (err) { e_info(probe, "setup link failed with code %d\n", err); - hw->mac.ops.setup_link(hw, old, true, true); + hw->mac.ops.setup_link(hw, old, true); } } else { /* in this case we currently only support 10Gb/FULL */ @@ -1040,6 +1041,9 @@ static void ixgbe_get_ethtool_stats(struct net_device *netdev, p = (char *) adapter + ixgbe_gstrings_stats[i].stat_offset; break; + default: + data[i] = 0; + continue; } data[i] = (ixgbe_gstrings_stats[i].sizeof_stat == @@ -1096,8 +1100,10 @@ static void ixgbe_get_strings(struct net_device *netdev, u32 stringset, switch (stringset) { case ETH_SS_TEST: - memcpy(data, *ixgbe_gstrings_test, - IXGBE_TEST_LEN * ETH_GSTRING_LEN); + for (i = 0; i < IXGBE_TEST_LEN; i++) { + memcpy(data, ixgbe_gstrings_test[i], ETH_GSTRING_LEN); + data += ETH_GSTRING_LEN; + } break; case ETH_SS_STATS: for (i = 0; i < IXGBE_GLOBAL_STATS_LEN; i++) { @@ -1837,19 +1843,11 @@ static void ixgbe_diag_test(struct net_device *netdev, struct ethtool_test *eth_test, u64 *data) { struct ixgbe_adapter *adapter = netdev_priv(netdev); + struct ixgbe_hw *hw = &adapter->hw; bool if_running = netif_running(netdev); set_bit(__IXGBE_TESTING, &adapter->state); if (eth_test->flags == ETH_TEST_FL_OFFLINE) { - /* Offline tests */ - - e_info(hw, "offline testing starting\n"); - - /* Link test performed before hardware reset so autoneg doesn't - * interfere with test result */ - if (ixgbe_link_test(adapter, &data[4])) - eth_test->flags |= ETH_TEST_FL_FAILED; - if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { int i; for (i = 0; i < adapter->num_vfs; i++) { @@ -1870,12 +1868,24 @@ static void ixgbe_diag_test(struct net_device *netdev, } } + /* Offline tests */ + e_info(hw, "offline testing starting\n"); + if (if_running) /* indicate we're in test mode */ dev_close(netdev); - else - ixgbe_reset(adapter); + /* bringing adapter down disables SFP+ optics */ + if (hw->mac.ops.enable_tx_laser) + hw->mac.ops.enable_tx_laser(hw); + + /* Link test performed before hardware reset so autoneg doesn't + * interfere with test result + */ + if (ixgbe_link_test(adapter, &data[4])) + eth_test->flags |= ETH_TEST_FL_FAILED; + + ixgbe_reset(adapter); e_info(hw, "register testing starting\n"); if (ixgbe_reg_test(adapter, &data[0])) eth_test->flags |= ETH_TEST_FL_FAILED; @@ -1908,16 +1918,22 @@ static void ixgbe_diag_test(struct net_device *netdev, skip_loopback: ixgbe_reset(adapter); + /* clear testing bit and return adapter to previous state */ clear_bit(__IXGBE_TESTING, &adapter->state); if (if_running) dev_open(netdev); } else { e_info(hw, "online testing starting\n"); + + /* if adapter is down, SFP+ optics will be disabled */ + if (!if_running && hw->mac.ops.enable_tx_laser) + hw->mac.ops.enable_tx_laser(hw); + /* Online tests */ if (ixgbe_link_test(adapter, &data[4])) eth_test->flags |= ETH_TEST_FL_FAILED; - /* Online tests aren't run; pass by default */ + /* Offline tests aren't run; pass by default */ data[0] = 0; data[1] = 0; data[2] = 0; @@ -1925,6 +1941,10 @@ skip_loopback: clear_bit(__IXGBE_TESTING, &adapter->state); } + + /* if adapter was down, ensure SFP+ optics are disabled again */ + if (!if_running && hw->mac.ops.disable_tx_laser) + hw->mac.ops.disable_tx_laser(hw); skip_ol_tests: msleep_interruptible(4 * 1000); } @@ -2093,13 +2113,17 @@ static int ixgbe_set_coalesce(struct net_device *netdev, struct ixgbe_adapter *adapter = netdev_priv(netdev); struct ixgbe_q_vector *q_vector; int i; - u16 tx_itr_param, rx_itr_param; + u16 tx_itr_param, rx_itr_param, tx_itr_prev; bool need_reset = false; - /* don't accept tx specific changes if we've got mixed RxTx vectors */ - if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count - && ec->tx_coalesce_usecs) - return -EINVAL; + if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count) { + /* reject Tx specific changes in case of mixed RxTx vectors */ + if (ec->tx_coalesce_usecs) + return -EINVAL; + tx_itr_prev = adapter->rx_itr_setting; + } else { + tx_itr_prev = adapter->tx_itr_setting; + } if ((ec->rx_coalesce_usecs > (IXGBE_MAX_EITR >> 2)) || (ec->tx_coalesce_usecs > (IXGBE_MAX_EITR >> 2))) @@ -2125,8 +2149,25 @@ static int ixgbe_set_coalesce(struct net_device *netdev, else tx_itr_param = adapter->tx_itr_setting; + /* mixed Rx/Tx */ + if (adapter->q_vector[0]->tx.count && adapter->q_vector[0]->rx.count) + adapter->tx_itr_setting = adapter->rx_itr_setting; + +#if IS_ENABLED(CONFIG_BQL) + /* detect ITR changes that require update of TXDCTL.WTHRESH */ + if ((adapter->tx_itr_setting > 1) && + (adapter->tx_itr_setting < IXGBE_100K_ITR)) { + if ((tx_itr_prev == 1) || + (tx_itr_prev > IXGBE_100K_ITR)) + need_reset = true; + } else { + if ((tx_itr_prev > 1) && + (tx_itr_prev < IXGBE_100K_ITR)) + need_reset = true; + } +#endif /* check the old value and enable RSC if necessary */ - need_reset = ixgbe_update_rsc(adapter); + need_reset |= ixgbe_update_rsc(adapter); for (i = 0; i < adapter->num_q_vectors; i++) { q_vector = adapter->q_vector[i]; @@ -2156,13 +2197,13 @@ static int ixgbe_get_ethtool_fdir_entry(struct ixgbe_adapter *adapter, union ixgbe_atr_input *mask = &adapter->fdir_mask; struct ethtool_rx_flow_spec *fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; - struct hlist_node *node, *node2; + struct hlist_node *node2; struct ixgbe_fdir_filter *rule = NULL; /* report total rule count */ cmd->data = (1024 << adapter->fdir_pballoc) - 2; - hlist_for_each_entry_safe(rule, node, node2, + hlist_for_each_entry_safe(rule, node2, &adapter->fdir_filter_list, fdir_node) { if (fsp->location <= rule->sw_idx) break; @@ -2223,14 +2264,14 @@ static int ixgbe_get_ethtool_fdir_all(struct ixgbe_adapter *adapter, struct ethtool_rxnfc *cmd, u32 *rule_locs) { - struct hlist_node *node, *node2; + struct hlist_node *node2; struct ixgbe_fdir_filter *rule; int cnt = 0; /* report total rule count */ cmd->data = (1024 << adapter->fdir_pballoc) - 2; - hlist_for_each_entry_safe(rule, node, node2, + hlist_for_each_entry_safe(rule, node2, &adapter->fdir_filter_list, fdir_node) { if (cnt == cmd->rule_cnt) return -EMSGSIZE; @@ -2317,19 +2358,19 @@ static int ixgbe_update_ethtool_fdir_entry(struct ixgbe_adapter *adapter, u16 sw_idx) { struct ixgbe_hw *hw = &adapter->hw; - struct hlist_node *node, *node2, *parent; - struct ixgbe_fdir_filter *rule; + struct hlist_node *node2; + struct ixgbe_fdir_filter *rule, *parent; int err = -EINVAL; parent = NULL; rule = NULL; - hlist_for_each_entry_safe(rule, node, node2, + hlist_for_each_entry_safe(rule, node2, &adapter->fdir_filter_list, fdir_node) { /* hash found, or no matching entry */ if (rule->sw_idx >= sw_idx) break; - parent = node; + parent = rule; } /* if there is an old rule occupying our place remove it */ @@ -2358,7 +2399,7 @@ static int ixgbe_update_ethtool_fdir_entry(struct ixgbe_adapter *adapter, /* add filter to the list */ if (parent) - hlist_add_after(parent, &input->fdir_node); + hlist_add_after(&parent->fdir_node, &input->fdir_node); else hlist_add_head(&input->fdir_node, &adapter->fdir_filter_list); @@ -2695,6 +2736,14 @@ static int ixgbe_get_ts_info(struct net_device *dev, (1 << HWTSTAMP_FILTER_NONE) | (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | + (1 << HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | + (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | + (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) | + (1 << HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | + (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | + (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ) | + (1 << HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) | + (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) | (1 << HWTSTAMP_FILTER_PTP_V2_EVENT); break; default: @@ -2704,6 +2753,225 @@ static int ixgbe_get_ts_info(struct net_device *dev, return 0; } +static unsigned int ixgbe_max_channels(struct ixgbe_adapter *adapter) +{ + unsigned int max_combined; + u8 tcs = netdev_get_num_tc(adapter->netdev); + + if (!(adapter->flags & IXGBE_FLAG_MSIX_ENABLED)) { + /* We only support one q_vector without MSI-X */ + max_combined = 1; + } else if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) { + /* SR-IOV currently only allows one queue on the PF */ + max_combined = 1; + } else if (tcs > 1) { + /* For DCB report channels per traffic class */ + if (adapter->hw.mac.type == ixgbe_mac_82598EB) { + /* 8 TC w/ 4 queues per TC */ + max_combined = 4; + } else if (tcs > 4) { + /* 8 TC w/ 8 queues per TC */ + max_combined = 8; + } else { + /* 4 TC w/ 16 queues per TC */ + max_combined = 16; + } + } else if (adapter->atr_sample_rate) { + /* support up to 64 queues with ATR */ + max_combined = IXGBE_MAX_FDIR_INDICES; + } else { + /* support up to 16 queues with RSS */ + max_combined = IXGBE_MAX_RSS_INDICES; + } + + return max_combined; +} + +static void ixgbe_get_channels(struct net_device *dev, + struct ethtool_channels *ch) +{ + struct ixgbe_adapter *adapter = netdev_priv(dev); + + /* report maximum channels */ + ch->max_combined = ixgbe_max_channels(adapter); + + /* report info for other vector */ + if (adapter->flags & IXGBE_FLAG_MSIX_ENABLED) { + ch->max_other = NON_Q_VECTORS; + ch->other_count = NON_Q_VECTORS; + } + + /* record RSS queues */ + ch->combined_count = adapter->ring_feature[RING_F_RSS].indices; + + /* nothing else to report if RSS is disabled */ + if (ch->combined_count == 1) + return; + + /* we do not support ATR queueing if SR-IOV is enabled */ + if (adapter->flags & IXGBE_FLAG_SRIOV_ENABLED) + return; + + /* same thing goes for being DCB enabled */ + if (netdev_get_num_tc(dev) > 1) + return; + + /* if ATR is disabled we can exit */ + if (!adapter->atr_sample_rate) + return; + + /* report flow director queues as maximum channels */ + ch->combined_count = adapter->ring_feature[RING_F_FDIR].indices; +} + +static int ixgbe_set_channels(struct net_device *dev, + struct ethtool_channels *ch) +{ + struct ixgbe_adapter *adapter = netdev_priv(dev); + unsigned int count = ch->combined_count; + + /* verify they are not requesting separate vectors */ + if (!count || ch->rx_count || ch->tx_count) + return -EINVAL; + + /* verify other_count has not changed */ + if (ch->other_count != NON_Q_VECTORS) + return -EINVAL; + + /* verify the number of channels does not exceed hardware limits */ + if (count > ixgbe_max_channels(adapter)) + return -EINVAL; + + /* update feature limits from largest to smallest supported values */ + adapter->ring_feature[RING_F_FDIR].limit = count; + + /* cap RSS limit at 16 */ + if (count > IXGBE_MAX_RSS_INDICES) + count = IXGBE_MAX_RSS_INDICES; + adapter->ring_feature[RING_F_RSS].limit = count; + +#ifdef IXGBE_FCOE + /* cap FCoE limit at 8 */ + if (count > IXGBE_FCRETA_SIZE) + count = IXGBE_FCRETA_SIZE; + adapter->ring_feature[RING_F_FCOE].limit = count; + +#endif + /* use setup TC to update any traffic class queue mapping */ + return ixgbe_setup_tc(dev, netdev_get_num_tc(dev)); +} + +static int ixgbe_get_module_info(struct net_device *dev, + struct ethtool_modinfo *modinfo) +{ + struct ixgbe_adapter *adapter = netdev_priv(dev); + struct ixgbe_hw *hw = &adapter->hw; + u32 status; + u8 sff8472_rev, addr_mode; + int ret_val = 0; + bool page_swap = false; + + /* avoid concurent i2c reads */ + while (test_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) + msleep(100); + + /* used by the service task */ + set_bit(__IXGBE_READ_I2C, &adapter->state); + + /* Check whether we support SFF-8472 or not */ + status = hw->phy.ops.read_i2c_eeprom(hw, + IXGBE_SFF_SFF_8472_COMP, + &sff8472_rev); + if (status != 0) { + ret_val = -EIO; + goto err_out; + } + + /* addressing mode is not supported */ + status = hw->phy.ops.read_i2c_eeprom(hw, + IXGBE_SFF_SFF_8472_SWAP, + &addr_mode); + if (status != 0) { + ret_val = -EIO; + goto err_out; + } + + if (addr_mode & IXGBE_SFF_ADDRESSING_MODE) { + e_err(drv, "Address change required to access page 0xA2, but not supported. Please report the module type to the driver maintainers.\n"); + page_swap = true; + } + + if (sff8472_rev == IXGBE_SFF_SFF_8472_UNSUP || page_swap) { + /* We have a SFP, but it does not support SFF-8472 */ + modinfo->type = ETH_MODULE_SFF_8079; + modinfo->eeprom_len = ETH_MODULE_SFF_8079_LEN; + } else { + /* We have a SFP which supports a revision of SFF-8472. */ + modinfo->type = ETH_MODULE_SFF_8472; + modinfo->eeprom_len = ETH_MODULE_SFF_8472_LEN; + } + +err_out: + clear_bit(__IXGBE_READ_I2C, &adapter->state); + return ret_val; +} + +static int ixgbe_get_module_eeprom(struct net_device *dev, + struct ethtool_eeprom *ee, + u8 *data) +{ + struct ixgbe_adapter *adapter = netdev_priv(dev); + struct ixgbe_hw *hw = &adapter->hw; + u32 status = IXGBE_ERR_PHY_ADDR_INVALID; + u8 databyte = 0xFF; + int i = 0; + int ret_val = 0; + + /* ixgbe_get_module_info is called before this function in all + * cases, so we do not need any checks we already do above, + * and can trust ee->len to be a known value. + */ + + while (test_bit(__IXGBE_IN_SFP_INIT, &adapter->state)) + msleep(100); + set_bit(__IXGBE_READ_I2C, &adapter->state); + + /* Read the first block, SFF-8079 */ + for (i = 0; i < ETH_MODULE_SFF_8079_LEN; i++) { + status = hw->phy.ops.read_i2c_eeprom(hw, i, &databyte); + if (status != 0) { + /* Error occured while reading module */ + ret_val = -EIO; + goto err_out; + } + data[i] = databyte; + } + + /* If the second block is requested, check if SFF-8472 is supported. */ + if (ee->len == ETH_MODULE_SFF_8472_LEN) { + if (data[IXGBE_SFF_SFF_8472_COMP] == IXGBE_SFF_SFF_8472_UNSUP) + return -EOPNOTSUPP; + + /* Read the second block, SFF-8472 */ + for (i = ETH_MODULE_SFF_8079_LEN; + i < ETH_MODULE_SFF_8472_LEN; i++) { + status = hw->phy.ops.read_i2c_sff8472(hw, + i - ETH_MODULE_SFF_8079_LEN, &databyte); + if (status != 0) { + /* Error occured while reading module */ + ret_val = -EIO; + goto err_out; + } + data[i] = databyte; + } + } + +err_out: + clear_bit(__IXGBE_READ_I2C, &adapter->state); + + return ret_val; +} + static const struct ethtool_ops ixgbe_ethtool_ops = { .get_settings = ixgbe_get_settings, .set_settings = ixgbe_set_settings, @@ -2732,7 +3000,11 @@ static const struct ethtool_ops ixgbe_ethtool_ops = { .set_coalesce = ixgbe_set_coalesce, .get_rxnfc = ixgbe_get_rxnfc, .set_rxnfc = ixgbe_set_rxnfc, + .get_channels = ixgbe_get_channels, + .set_channels = ixgbe_set_channels, .get_ts_info = ixgbe_get_ts_info, + .get_module_info = ixgbe_get_module_info, + .get_module_eeprom = ixgbe_get_module_eeprom, }; void ixgbe_set_ethtool_ops(struct net_device *netdev) |