| /******************************************************************************* |
| * |
| * Intel Ethernet Controller XL710 Family Linux Driver |
| * Copyright(c) 2013 - 2014 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, |
| * version 2, as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program. If not, see <http://www.gnu.org/licenses/>. |
| * |
| * The full GNU General Public License is included in this distribution in |
| * the file called "COPYING". |
| * |
| * Contact Information: |
| * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
| * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
| * |
| ******************************************************************************/ |
| |
| /* ethtool support for i40e */ |
| |
| #include "i40e.h" |
| #include "i40e_diag.h" |
| |
| struct i40e_stats { |
| char stat_string[ETH_GSTRING_LEN]; |
| int sizeof_stat; |
| int stat_offset; |
| }; |
| |
| #define I40E_STAT(_type, _name, _stat) { \ |
| .stat_string = _name, \ |
| .sizeof_stat = FIELD_SIZEOF(_type, _stat), \ |
| .stat_offset = offsetof(_type, _stat) \ |
| } |
| #define I40E_NETDEV_STAT(_net_stat) \ |
| I40E_STAT(struct net_device_stats, #_net_stat, _net_stat) |
| #define I40E_PF_STAT(_name, _stat) \ |
| I40E_STAT(struct i40e_pf, _name, _stat) |
| #define I40E_VSI_STAT(_name, _stat) \ |
| I40E_STAT(struct i40e_vsi, _name, _stat) |
| #define I40E_VEB_STAT(_name, _stat) \ |
| I40E_STAT(struct i40e_veb, _name, _stat) |
| |
| static const struct i40e_stats i40e_gstrings_net_stats[] = { |
| I40E_NETDEV_STAT(rx_packets), |
| I40E_NETDEV_STAT(tx_packets), |
| I40E_NETDEV_STAT(rx_bytes), |
| I40E_NETDEV_STAT(tx_bytes), |
| I40E_NETDEV_STAT(rx_errors), |
| I40E_NETDEV_STAT(tx_errors), |
| I40E_NETDEV_STAT(rx_dropped), |
| I40E_NETDEV_STAT(tx_dropped), |
| I40E_NETDEV_STAT(collisions), |
| I40E_NETDEV_STAT(rx_length_errors), |
| I40E_NETDEV_STAT(rx_crc_errors), |
| }; |
| |
| static const struct i40e_stats i40e_gstrings_veb_stats[] = { |
| I40E_VEB_STAT("rx_bytes", stats.rx_bytes), |
| I40E_VEB_STAT("tx_bytes", stats.tx_bytes), |
| I40E_VEB_STAT("rx_unicast", stats.rx_unicast), |
| I40E_VEB_STAT("tx_unicast", stats.tx_unicast), |
| I40E_VEB_STAT("rx_multicast", stats.rx_multicast), |
| I40E_VEB_STAT("tx_multicast", stats.tx_multicast), |
| I40E_VEB_STAT("rx_broadcast", stats.rx_broadcast), |
| I40E_VEB_STAT("tx_broadcast", stats.tx_broadcast), |
| I40E_VEB_STAT("rx_discards", stats.rx_discards), |
| I40E_VEB_STAT("tx_discards", stats.tx_discards), |
| I40E_VEB_STAT("tx_errors", stats.tx_errors), |
| I40E_VEB_STAT("rx_unknown_protocol", stats.rx_unknown_protocol), |
| }; |
| |
| static const struct i40e_stats i40e_gstrings_misc_stats[] = { |
| I40E_VSI_STAT("rx_unicast", eth_stats.rx_unicast), |
| I40E_VSI_STAT("tx_unicast", eth_stats.tx_unicast), |
| I40E_VSI_STAT("rx_multicast", eth_stats.rx_multicast), |
| I40E_VSI_STAT("tx_multicast", eth_stats.tx_multicast), |
| I40E_VSI_STAT("rx_broadcast", eth_stats.rx_broadcast), |
| I40E_VSI_STAT("tx_broadcast", eth_stats.tx_broadcast), |
| I40E_VSI_STAT("rx_unknown_protocol", eth_stats.rx_unknown_protocol), |
| }; |
| |
| static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, |
| struct ethtool_rxnfc *cmd); |
| |
| /* These PF_STATs might look like duplicates of some NETDEV_STATs, |
| * but they are separate. This device supports Virtualization, and |
| * as such might have several netdevs supporting VMDq and FCoE going |
| * through a single port. The NETDEV_STATs are for individual netdevs |
| * seen at the top of the stack, and the PF_STATs are for the physical |
| * function at the bottom of the stack hosting those netdevs. |
| * |
| * The PF_STATs are appended to the netdev stats only when ethtool -S |
| * is queried on the base PF netdev, not on the VMDq or FCoE netdev. |
| */ |
| static struct i40e_stats i40e_gstrings_stats[] = { |
| I40E_PF_STAT("rx_bytes", stats.eth.rx_bytes), |
| I40E_PF_STAT("tx_bytes", stats.eth.tx_bytes), |
| I40E_PF_STAT("rx_unicast", stats.eth.rx_unicast), |
| I40E_PF_STAT("tx_unicast", stats.eth.tx_unicast), |
| I40E_PF_STAT("rx_multicast", stats.eth.rx_multicast), |
| I40E_PF_STAT("tx_multicast", stats.eth.tx_multicast), |
| I40E_PF_STAT("rx_broadcast", stats.eth.rx_broadcast), |
| I40E_PF_STAT("tx_broadcast", stats.eth.tx_broadcast), |
| I40E_PF_STAT("tx_errors", stats.eth.tx_errors), |
| I40E_PF_STAT("rx_dropped", stats.eth.rx_discards), |
| I40E_PF_STAT("tx_dropped", stats.eth.tx_discards), |
| I40E_PF_STAT("tx_dropped_link_down", stats.tx_dropped_link_down), |
| I40E_PF_STAT("crc_errors", stats.crc_errors), |
| I40E_PF_STAT("illegal_bytes", stats.illegal_bytes), |
| I40E_PF_STAT("mac_local_faults", stats.mac_local_faults), |
| I40E_PF_STAT("mac_remote_faults", stats.mac_remote_faults), |
| I40E_PF_STAT("tx_timeout", tx_timeout_count), |
| I40E_PF_STAT("rx_csum_bad", hw_csum_rx_error), |
| I40E_PF_STAT("rx_length_errors", stats.rx_length_errors), |
| I40E_PF_STAT("link_xon_rx", stats.link_xon_rx), |
| I40E_PF_STAT("link_xoff_rx", stats.link_xoff_rx), |
| I40E_PF_STAT("link_xon_tx", stats.link_xon_tx), |
| I40E_PF_STAT("link_xoff_tx", stats.link_xoff_tx), |
| I40E_PF_STAT("rx_size_64", stats.rx_size_64), |
| I40E_PF_STAT("rx_size_127", stats.rx_size_127), |
| I40E_PF_STAT("rx_size_255", stats.rx_size_255), |
| I40E_PF_STAT("rx_size_511", stats.rx_size_511), |
| I40E_PF_STAT("rx_size_1023", stats.rx_size_1023), |
| I40E_PF_STAT("rx_size_1522", stats.rx_size_1522), |
| I40E_PF_STAT("rx_size_big", stats.rx_size_big), |
| I40E_PF_STAT("tx_size_64", stats.tx_size_64), |
| I40E_PF_STAT("tx_size_127", stats.tx_size_127), |
| I40E_PF_STAT("tx_size_255", stats.tx_size_255), |
| I40E_PF_STAT("tx_size_511", stats.tx_size_511), |
| I40E_PF_STAT("tx_size_1023", stats.tx_size_1023), |
| I40E_PF_STAT("tx_size_1522", stats.tx_size_1522), |
| I40E_PF_STAT("tx_size_big", stats.tx_size_big), |
| I40E_PF_STAT("rx_undersize", stats.rx_undersize), |
| I40E_PF_STAT("rx_fragments", stats.rx_fragments), |
| I40E_PF_STAT("rx_oversize", stats.rx_oversize), |
| I40E_PF_STAT("rx_jabber", stats.rx_jabber), |
| I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests), |
| I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared), |
| I40E_PF_STAT("fdir_atr_match", stats.fd_atr_match), |
| I40E_PF_STAT("fdir_sb_match", stats.fd_sb_match), |
| |
| /* LPI stats */ |
| I40E_PF_STAT("tx_lpi_status", stats.tx_lpi_status), |
| I40E_PF_STAT("rx_lpi_status", stats.rx_lpi_status), |
| I40E_PF_STAT("tx_lpi_count", stats.tx_lpi_count), |
| I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count), |
| }; |
| |
| #define I40E_QUEUE_STATS_LEN(n) \ |
| (((struct i40e_netdev_priv *)netdev_priv((n)))->vsi->num_queue_pairs \ |
| * 2 /* Tx and Rx together */ \ |
| * (sizeof(struct i40e_queue_stats) / sizeof(u64))) |
| #define I40E_GLOBAL_STATS_LEN ARRAY_SIZE(i40e_gstrings_stats) |
| #define I40E_NETDEV_STATS_LEN ARRAY_SIZE(i40e_gstrings_net_stats) |
| #define I40E_MISC_STATS_LEN ARRAY_SIZE(i40e_gstrings_misc_stats) |
| #define I40E_VSI_STATS_LEN(n) (I40E_NETDEV_STATS_LEN + \ |
| I40E_MISC_STATS_LEN + \ |
| I40E_QUEUE_STATS_LEN((n))) |
| #define I40E_PFC_STATS_LEN ( \ |
| (FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_rx) + \ |
| FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_rx) + \ |
| FIELD_SIZEOF(struct i40e_pf, stats.priority_xoff_tx) + \ |
| FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_tx) + \ |
| FIELD_SIZEOF(struct i40e_pf, stats.priority_xon_2_xoff)) \ |
| / sizeof(u64)) |
| #define I40E_VEB_STATS_LEN ARRAY_SIZE(i40e_gstrings_veb_stats) |
| #define I40E_PF_STATS_LEN(n) (I40E_GLOBAL_STATS_LEN + \ |
| I40E_PFC_STATS_LEN + \ |
| I40E_VSI_STATS_LEN((n))) |
| |
| enum i40e_ethtool_test_id { |
| I40E_ETH_TEST_REG = 0, |
| I40E_ETH_TEST_EEPROM, |
| I40E_ETH_TEST_INTR, |
| I40E_ETH_TEST_LOOPBACK, |
| I40E_ETH_TEST_LINK, |
| }; |
| |
| static const char i40e_gstrings_test[][ETH_GSTRING_LEN] = { |
| "Register test (offline)", |
| "Eeprom test (offline)", |
| "Interrupt test (offline)", |
| "Loopback test (offline)", |
| "Link test (on/offline)" |
| }; |
| |
| #define I40E_TEST_LEN (sizeof(i40e_gstrings_test) / ETH_GSTRING_LEN) |
| |
| /** |
| * i40e_get_settings - Get Link Speed and Duplex settings |
| * @netdev: network interface device structure |
| * @ecmd: ethtool command |
| * |
| * Reports speed/duplex settings based on media_type |
| **/ |
| static int i40e_get_settings(struct net_device *netdev, |
| struct ethtool_cmd *ecmd) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_pf *pf = np->vsi->back; |
| struct i40e_hw *hw = &pf->hw; |
| struct i40e_link_status *hw_link_info = &hw->phy.link_info; |
| bool link_up = hw_link_info->link_info & I40E_AQ_LINK_UP; |
| u32 link_speed = hw_link_info->link_speed; |
| |
| /* hardware is either in 40G mode or 10G mode |
| * NOTE: this section initializes supported and advertising |
| */ |
| switch (hw_link_info->phy_type) { |
| case I40E_PHY_TYPE_40GBASE_CR4: |
| case I40E_PHY_TYPE_40GBASE_CR4_CU: |
| ecmd->supported = SUPPORTED_40000baseCR4_Full; |
| ecmd->advertising = ADVERTISED_40000baseCR4_Full; |
| break; |
| case I40E_PHY_TYPE_40GBASE_KR4: |
| ecmd->supported = SUPPORTED_40000baseKR4_Full; |
| ecmd->advertising = ADVERTISED_40000baseKR4_Full; |
| break; |
| case I40E_PHY_TYPE_40GBASE_SR4: |
| ecmd->supported = SUPPORTED_40000baseSR4_Full; |
| ecmd->advertising = ADVERTISED_40000baseSR4_Full; |
| break; |
| case I40E_PHY_TYPE_40GBASE_LR4: |
| ecmd->supported = SUPPORTED_40000baseLR4_Full; |
| ecmd->advertising = ADVERTISED_40000baseLR4_Full; |
| break; |
| case I40E_PHY_TYPE_10GBASE_KX4: |
| ecmd->supported = SUPPORTED_10000baseKX4_Full; |
| ecmd->advertising = ADVERTISED_10000baseKX4_Full; |
| break; |
| case I40E_PHY_TYPE_10GBASE_KR: |
| ecmd->supported = SUPPORTED_10000baseKR_Full; |
| ecmd->advertising = ADVERTISED_10000baseKR_Full; |
| break; |
| default: |
| if (i40e_is_40G_device(hw->device_id)) { |
| ecmd->supported = SUPPORTED_40000baseSR4_Full; |
| ecmd->advertising = ADVERTISED_40000baseSR4_Full; |
| } else { |
| ecmd->supported = SUPPORTED_10000baseT_Full; |
| ecmd->advertising = ADVERTISED_10000baseT_Full; |
| } |
| break; |
| } |
| |
| ecmd->supported |= SUPPORTED_Autoneg; |
| ecmd->advertising |= ADVERTISED_Autoneg; |
| ecmd->autoneg = ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? |
| AUTONEG_ENABLE : AUTONEG_DISABLE); |
| |
| switch (hw->phy.media_type) { |
| case I40E_MEDIA_TYPE_BACKPLANE: |
| ecmd->supported |= SUPPORTED_Backplane; |
| ecmd->advertising |= ADVERTISED_Backplane; |
| ecmd->port = PORT_NONE; |
| break; |
| case I40E_MEDIA_TYPE_BASET: |
| ecmd->supported |= SUPPORTED_TP; |
| ecmd->advertising |= ADVERTISED_TP; |
| ecmd->port = PORT_TP; |
| break; |
| case I40E_MEDIA_TYPE_DA: |
| case I40E_MEDIA_TYPE_CX4: |
| ecmd->supported |= SUPPORTED_FIBRE; |
| ecmd->advertising |= ADVERTISED_FIBRE; |
| ecmd->port = PORT_DA; |
| break; |
| case I40E_MEDIA_TYPE_FIBER: |
| ecmd->supported |= SUPPORTED_FIBRE; |
| ecmd->advertising |= ADVERTISED_FIBRE; |
| ecmd->port = PORT_FIBRE; |
| break; |
| case I40E_MEDIA_TYPE_UNKNOWN: |
| default: |
| ecmd->port = PORT_OTHER; |
| break; |
| } |
| |
| ecmd->transceiver = XCVR_EXTERNAL; |
| |
| if (link_up) { |
| switch (link_speed) { |
| case I40E_LINK_SPEED_40GB: |
| /* need a SPEED_40000 in ethtool.h */ |
| ethtool_cmd_speed_set(ecmd, 40000); |
| break; |
| case I40E_LINK_SPEED_10GB: |
| ethtool_cmd_speed_set(ecmd, SPEED_10000); |
| break; |
| default: |
| break; |
| } |
| ecmd->duplex = DUPLEX_FULL; |
| } else { |
| ethtool_cmd_speed_set(ecmd, SPEED_UNKNOWN); |
| ecmd->duplex = DUPLEX_UNKNOWN; |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * i40e_get_pauseparam - Get Flow Control status |
| * Return tx/rx-pause status |
| **/ |
| static void i40e_get_pauseparam(struct net_device *netdev, |
| struct ethtool_pauseparam *pause) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_pf *pf = np->vsi->back; |
| struct i40e_hw *hw = &pf->hw; |
| struct i40e_link_status *hw_link_info = &hw->phy.link_info; |
| |
| pause->autoneg = |
| ((hw_link_info->an_info & I40E_AQ_AN_COMPLETED) ? |
| AUTONEG_ENABLE : AUTONEG_DISABLE); |
| |
| if (hw->fc.current_mode == I40E_FC_RX_PAUSE) { |
| pause->rx_pause = 1; |
| } else if (hw->fc.current_mode == I40E_FC_TX_PAUSE) { |
| pause->tx_pause = 1; |
| } else if (hw->fc.current_mode == I40E_FC_FULL) { |
| pause->rx_pause = 1; |
| pause->tx_pause = 1; |
| } |
| } |
| |
| static u32 i40e_get_msglevel(struct net_device *netdev) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_pf *pf = np->vsi->back; |
| |
| return pf->msg_enable; |
| } |
| |
| static void i40e_set_msglevel(struct net_device *netdev, u32 data) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_pf *pf = np->vsi->back; |
| |
| if (I40E_DEBUG_USER & data) |
| pf->hw.debug_mask = data; |
| pf->msg_enable = data; |
| } |
| |
| static int i40e_get_regs_len(struct net_device *netdev) |
| { |
| int reg_count = 0; |
| int i; |
| |
| for (i = 0; i40e_reg_list[i].offset != 0; i++) |
| reg_count += i40e_reg_list[i].elements; |
| |
| return reg_count * sizeof(u32); |
| } |
| |
| static void i40e_get_regs(struct net_device *netdev, struct ethtool_regs *regs, |
| void *p) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_pf *pf = np->vsi->back; |
| struct i40e_hw *hw = &pf->hw; |
| u32 *reg_buf = p; |
| int i, j, ri; |
| u32 reg; |
| |
| /* Tell ethtool which driver-version-specific regs output we have. |
| * |
| * At some point, if we have ethtool doing special formatting of |
| * this data, it will rely on this version number to know how to |
| * interpret things. Hence, this needs to be updated if/when the |
| * diags register table is changed. |
| */ |
| regs->version = 1; |
| |
| /* loop through the diags reg table for what to print */ |
| ri = 0; |
| for (i = 0; i40e_reg_list[i].offset != 0; i++) { |
| for (j = 0; j < i40e_reg_list[i].elements; j++) { |
| reg = i40e_reg_list[i].offset |
| + (j * i40e_reg_list[i].stride); |
| reg_buf[ri++] = rd32(hw, reg); |
| } |
| } |
| |
| } |
| |
| static int i40e_get_eeprom(struct net_device *netdev, |
| struct ethtool_eeprom *eeprom, u8 *bytes) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_hw *hw = &np->vsi->back->hw; |
| struct i40e_pf *pf = np->vsi->back; |
| int ret_val = 0, len; |
| u8 *eeprom_buff; |
| u16 i, sectors; |
| bool last; |
| #define I40E_NVM_SECTOR_SIZE 4096 |
| if (eeprom->len == 0) |
| return -EINVAL; |
| |
| eeprom->magic = hw->vendor_id | (hw->device_id << 16); |
| |
| eeprom_buff = kzalloc(eeprom->len, GFP_KERNEL); |
| if (!eeprom_buff) |
| return -ENOMEM; |
| |
| ret_val = i40e_acquire_nvm(hw, I40E_RESOURCE_READ); |
| if (ret_val) { |
| dev_info(&pf->pdev->dev, |
| "Failed Acquiring NVM resource for read err=%d status=0x%x\n", |
| ret_val, hw->aq.asq_last_status); |
| goto free_buff; |
| } |
| |
| sectors = eeprom->len / I40E_NVM_SECTOR_SIZE; |
| sectors += (eeprom->len % I40E_NVM_SECTOR_SIZE) ? 1 : 0; |
| len = I40E_NVM_SECTOR_SIZE; |
| last = false; |
| for (i = 0; i < sectors; i++) { |
| if (i == (sectors - 1)) { |
| len = eeprom->len - (I40E_NVM_SECTOR_SIZE * i); |
| last = true; |
| } |
| ret_val = i40e_aq_read_nvm(hw, 0x0, |
| eeprom->offset + (I40E_NVM_SECTOR_SIZE * i), |
| len, |
| eeprom_buff + (I40E_NVM_SECTOR_SIZE * i), |
| last, NULL); |
| if (ret_val) { |
| dev_info(&pf->pdev->dev, |
| "read NVM failed err=%d status=0x%x\n", |
| ret_val, hw->aq.asq_last_status); |
| goto release_nvm; |
| } |
| } |
| |
| release_nvm: |
| i40e_release_nvm(hw); |
| memcpy(bytes, eeprom_buff, eeprom->len); |
| free_buff: |
| kfree(eeprom_buff); |
| return ret_val; |
| } |
| |
| static int i40e_get_eeprom_len(struct net_device *netdev) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_hw *hw = &np->vsi->back->hw; |
| u32 val; |
| |
| val = (rd32(hw, I40E_GLPCI_LBARCTRL) |
| & I40E_GLPCI_LBARCTRL_FL_SIZE_MASK) |
| >> I40E_GLPCI_LBARCTRL_FL_SIZE_SHIFT; |
| /* register returns value in power of 2, 64Kbyte chunks. */ |
| val = (64 * 1024) * (1 << val); |
| return val; |
| } |
| |
| static void i40e_get_drvinfo(struct net_device *netdev, |
| struct ethtool_drvinfo *drvinfo) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_vsi *vsi = np->vsi; |
| struct i40e_pf *pf = vsi->back; |
| |
| strlcpy(drvinfo->driver, i40e_driver_name, sizeof(drvinfo->driver)); |
| strlcpy(drvinfo->version, i40e_driver_version_str, |
| sizeof(drvinfo->version)); |
| strlcpy(drvinfo->fw_version, i40e_fw_version_str(&pf->hw), |
| sizeof(drvinfo->fw_version)); |
| strlcpy(drvinfo->bus_info, pci_name(pf->pdev), |
| sizeof(drvinfo->bus_info)); |
| } |
| |
| static void i40e_get_ringparam(struct net_device *netdev, |
| struct ethtool_ringparam *ring) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_pf *pf = np->vsi->back; |
| struct i40e_vsi *vsi = pf->vsi[pf->lan_vsi]; |
| |
| ring->rx_max_pending = I40E_MAX_NUM_DESCRIPTORS; |
| ring->tx_max_pending = I40E_MAX_NUM_DESCRIPTORS; |
| ring->rx_mini_max_pending = 0; |
| ring->rx_jumbo_max_pending = 0; |
| ring->rx_pending = vsi->rx_rings[0]->count; |
| ring->tx_pending = vsi->tx_rings[0]->count; |
| ring->rx_mini_pending = 0; |
| ring->rx_jumbo_pending = 0; |
| } |
| |
| static int i40e_set_ringparam(struct net_device *netdev, |
| struct ethtool_ringparam *ring) |
| { |
| struct i40e_ring *tx_rings = NULL, *rx_rings = NULL; |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_vsi *vsi = np->vsi; |
| struct i40e_pf *pf = vsi->back; |
| u32 new_rx_count, new_tx_count; |
| int i, err = 0; |
| |
| if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending)) |
| return -EINVAL; |
| |
| if (ring->tx_pending > I40E_MAX_NUM_DESCRIPTORS || |
| ring->tx_pending < I40E_MIN_NUM_DESCRIPTORS || |
| ring->rx_pending > I40E_MAX_NUM_DESCRIPTORS || |
| ring->rx_pending < I40E_MIN_NUM_DESCRIPTORS) { |
| netdev_info(netdev, |
| "Descriptors requested (Tx: %d / Rx: %d) out of range [%d-%d]\n", |
| ring->tx_pending, ring->rx_pending, |
| I40E_MIN_NUM_DESCRIPTORS, I40E_MAX_NUM_DESCRIPTORS); |
| return -EINVAL; |
| } |
| |
| new_tx_count = ALIGN(ring->tx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); |
| new_rx_count = ALIGN(ring->rx_pending, I40E_REQ_DESCRIPTOR_MULTIPLE); |
| |
| /* if nothing to do return success */ |
| if ((new_tx_count == vsi->tx_rings[0]->count) && |
| (new_rx_count == vsi->rx_rings[0]->count)) |
| return 0; |
| |
| while (test_and_set_bit(__I40E_CONFIG_BUSY, &pf->state)) |
| usleep_range(1000, 2000); |
| |
| if (!netif_running(vsi->netdev)) { |
| /* simple case - set for the next time the netdev is started */ |
| for (i = 0; i < vsi->num_queue_pairs; i++) { |
| vsi->tx_rings[i]->count = new_tx_count; |
| vsi->rx_rings[i]->count = new_rx_count; |
| } |
| goto done; |
| } |
| |
| /* 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. |
| */ |
| |
| /* alloc updated Tx resources */ |
| if (new_tx_count != vsi->tx_rings[0]->count) { |
| netdev_info(netdev, |
| "Changing Tx descriptor count from %d to %d.\n", |
| vsi->tx_rings[0]->count, new_tx_count); |
| tx_rings = kcalloc(vsi->alloc_queue_pairs, |
| sizeof(struct i40e_ring), GFP_KERNEL); |
| if (!tx_rings) { |
| err = -ENOMEM; |
| goto done; |
| } |
| |
| for (i = 0; i < vsi->num_queue_pairs; i++) { |
| /* clone ring and setup updated count */ |
| tx_rings[i] = *vsi->tx_rings[i]; |
| tx_rings[i].count = new_tx_count; |
| err = i40e_setup_tx_descriptors(&tx_rings[i]); |
| if (err) { |
| while (i) { |
| i--; |
| i40e_free_tx_resources(&tx_rings[i]); |
| } |
| kfree(tx_rings); |
| tx_rings = NULL; |
| |
| goto done; |
| } |
| } |
| } |
| |
| /* alloc updated Rx resources */ |
| if (new_rx_count != vsi->rx_rings[0]->count) { |
| netdev_info(netdev, |
| "Changing Rx descriptor count from %d to %d\n", |
| vsi->rx_rings[0]->count, new_rx_count); |
| rx_rings = kcalloc(vsi->alloc_queue_pairs, |
| sizeof(struct i40e_ring), GFP_KERNEL); |
| if (!rx_rings) { |
| err = -ENOMEM; |
| goto free_tx; |
| } |
| |
| for (i = 0; i < vsi->num_queue_pairs; i++) { |
| /* clone ring and setup updated count */ |
| rx_rings[i] = *vsi->rx_rings[i]; |
| rx_rings[i].count = new_rx_count; |
| err = i40e_setup_rx_descriptors(&rx_rings[i]); |
| if (err) { |
| while (i) { |
| i--; |
| i40e_free_rx_resources(&rx_rings[i]); |
| } |
| kfree(rx_rings); |
| rx_rings = NULL; |
| |
| goto free_tx; |
| } |
| } |
| } |
| |
| /* Bring interface down, copy in the new ring info, |
| * then restore the interface |
| */ |
| i40e_down(vsi); |
| |
| if (tx_rings) { |
| for (i = 0; i < vsi->num_queue_pairs; i++) { |
| i40e_free_tx_resources(vsi->tx_rings[i]); |
| *vsi->tx_rings[i] = tx_rings[i]; |
| } |
| kfree(tx_rings); |
| tx_rings = NULL; |
| } |
| |
| if (rx_rings) { |
| for (i = 0; i < vsi->num_queue_pairs; i++) { |
| i40e_free_rx_resources(vsi->rx_rings[i]); |
| *vsi->rx_rings[i] = rx_rings[i]; |
| } |
| kfree(rx_rings); |
| rx_rings = NULL; |
| } |
| |
| i40e_up(vsi); |
| |
| free_tx: |
| /* error cleanup if the Rx allocations failed after getting Tx */ |
| if (tx_rings) { |
| for (i = 0; i < vsi->num_queue_pairs; i++) |
| i40e_free_tx_resources(&tx_rings[i]); |
| kfree(tx_rings); |
| tx_rings = NULL; |
| } |
| |
| done: |
| clear_bit(__I40E_CONFIG_BUSY, &pf->state); |
| |
| return err; |
| } |
| |
| static int i40e_get_sset_count(struct net_device *netdev, int sset) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_vsi *vsi = np->vsi; |
| struct i40e_pf *pf = vsi->back; |
| |
| switch (sset) { |
| case ETH_SS_TEST: |
| return I40E_TEST_LEN; |
| case ETH_SS_STATS: |
| if (vsi == pf->vsi[pf->lan_vsi]) { |
| int len = I40E_PF_STATS_LEN(netdev); |
| |
| if (pf->lan_veb != I40E_NO_VEB) |
| len += I40E_VEB_STATS_LEN; |
| return len; |
| } else { |
| return I40E_VSI_STATS_LEN(netdev); |
| } |
| default: |
| return -EOPNOTSUPP; |
| } |
| } |
| |
| static void i40e_get_ethtool_stats(struct net_device *netdev, |
| struct ethtool_stats *stats, u64 *data) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_ring *tx_ring, *rx_ring; |
| struct i40e_vsi *vsi = np->vsi; |
| struct i40e_pf *pf = vsi->back; |
| int i = 0; |
| char *p; |
| int j; |
| struct rtnl_link_stats64 *net_stats = i40e_get_vsi_stats_struct(vsi); |
| unsigned int start; |
| |
| i40e_update_stats(vsi); |
| |
| for (j = 0; j < I40E_NETDEV_STATS_LEN; j++) { |
| p = (char *)net_stats + i40e_gstrings_net_stats[j].stat_offset; |
| data[i++] = (i40e_gstrings_net_stats[j].sizeof_stat == |
| sizeof(u64)) ? *(u64 *)p : *(u32 *)p; |
| } |
| for (j = 0; j < I40E_MISC_STATS_LEN; j++) { |
| p = (char *)vsi + i40e_gstrings_misc_stats[j].stat_offset; |
| data[i++] = (i40e_gstrings_misc_stats[j].sizeof_stat == |
| sizeof(u64)) ? *(u64 *)p : *(u32 *)p; |
| } |
| rcu_read_lock(); |
| for (j = 0; j < vsi->num_queue_pairs; j++) { |
| tx_ring = ACCESS_ONCE(vsi->tx_rings[j]); |
| |
| if (!tx_ring) |
| continue; |
| |
| /* process Tx ring statistics */ |
| do { |
| start = u64_stats_fetch_begin_irq(&tx_ring->syncp); |
| data[i] = tx_ring->stats.packets; |
| data[i + 1] = tx_ring->stats.bytes; |
| } while (u64_stats_fetch_retry_irq(&tx_ring->syncp, start)); |
| i += 2; |
| |
| /* Rx ring is the 2nd half of the queue pair */ |
| rx_ring = &tx_ring[1]; |
| do { |
| start = u64_stats_fetch_begin_irq(&rx_ring->syncp); |
| data[i] = rx_ring->stats.packets; |
| data[i + 1] = rx_ring->stats.bytes; |
| } while (u64_stats_fetch_retry_irq(&rx_ring->syncp, start)); |
| i += 2; |
| } |
| rcu_read_unlock(); |
| if (vsi != pf->vsi[pf->lan_vsi]) |
| return; |
| |
| if (pf->lan_veb != I40E_NO_VEB) { |
| struct i40e_veb *veb = pf->veb[pf->lan_veb]; |
| for (j = 0; j < I40E_VEB_STATS_LEN; j++) { |
| p = (char *)veb; |
| p += i40e_gstrings_veb_stats[j].stat_offset; |
| data[i++] = (i40e_gstrings_veb_stats[j].sizeof_stat == |
| sizeof(u64)) ? *(u64 *)p : *(u32 *)p; |
| } |
| } |
| for (j = 0; j < I40E_GLOBAL_STATS_LEN; j++) { |
| p = (char *)pf + i40e_gstrings_stats[j].stat_offset; |
| data[i++] = (i40e_gstrings_stats[j].sizeof_stat == |
| sizeof(u64)) ? *(u64 *)p : *(u32 *)p; |
| } |
| for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) { |
| data[i++] = pf->stats.priority_xon_tx[j]; |
| data[i++] = pf->stats.priority_xoff_tx[j]; |
| } |
| for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) { |
| data[i++] = pf->stats.priority_xon_rx[j]; |
| data[i++] = pf->stats.priority_xoff_rx[j]; |
| } |
| for (j = 0; j < I40E_MAX_USER_PRIORITY; j++) |
| data[i++] = pf->stats.priority_xon_2_xoff[j]; |
| } |
| |
| static void i40e_get_strings(struct net_device *netdev, u32 stringset, |
| u8 *data) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_vsi *vsi = np->vsi; |
| struct i40e_pf *pf = vsi->back; |
| char *p = (char *)data; |
| int i; |
| |
| switch (stringset) { |
| case ETH_SS_TEST: |
| for (i = 0; i < I40E_TEST_LEN; i++) { |
| memcpy(data, i40e_gstrings_test[i], ETH_GSTRING_LEN); |
| data += ETH_GSTRING_LEN; |
| } |
| break; |
| case ETH_SS_STATS: |
| for (i = 0; i < I40E_NETDEV_STATS_LEN; i++) { |
| snprintf(p, ETH_GSTRING_LEN, "%s", |
| i40e_gstrings_net_stats[i].stat_string); |
| p += ETH_GSTRING_LEN; |
| } |
| for (i = 0; i < I40E_MISC_STATS_LEN; i++) { |
| snprintf(p, ETH_GSTRING_LEN, "%s", |
| i40e_gstrings_misc_stats[i].stat_string); |
| p += ETH_GSTRING_LEN; |
| } |
| for (i = 0; i < vsi->num_queue_pairs; i++) { |
| snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_packets", i); |
| p += ETH_GSTRING_LEN; |
| snprintf(p, ETH_GSTRING_LEN, "tx-%u.tx_bytes", i); |
| p += ETH_GSTRING_LEN; |
| snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_packets", i); |
| p += ETH_GSTRING_LEN; |
| snprintf(p, ETH_GSTRING_LEN, "rx-%u.rx_bytes", i); |
| p += ETH_GSTRING_LEN; |
| } |
| if (vsi != pf->vsi[pf->lan_vsi]) |
| return; |
| |
| if (pf->lan_veb != I40E_NO_VEB) { |
| for (i = 0; i < I40E_VEB_STATS_LEN; i++) { |
| snprintf(p, ETH_GSTRING_LEN, "veb.%s", |
| i40e_gstrings_veb_stats[i].stat_string); |
| p += ETH_GSTRING_LEN; |
| } |
| } |
| for (i = 0; i < I40E_GLOBAL_STATS_LEN; i++) { |
| snprintf(p, ETH_GSTRING_LEN, "port.%s", |
| i40e_gstrings_stats[i].stat_string); |
| p += ETH_GSTRING_LEN; |
| } |
| for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { |
| snprintf(p, ETH_GSTRING_LEN, |
| "port.tx_priority_%u_xon", i); |
| p += ETH_GSTRING_LEN; |
| snprintf(p, ETH_GSTRING_LEN, |
| "port.tx_priority_%u_xoff", i); |
| p += ETH_GSTRING_LEN; |
| } |
| for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { |
| snprintf(p, ETH_GSTRING_LEN, |
| "port.rx_priority_%u_xon", i); |
| p += ETH_GSTRING_LEN; |
| snprintf(p, ETH_GSTRING_LEN, |
| "port.rx_priority_%u_xoff", i); |
| p += ETH_GSTRING_LEN; |
| } |
| for (i = 0; i < I40E_MAX_USER_PRIORITY; i++) { |
| snprintf(p, ETH_GSTRING_LEN, |
| "port.rx_priority_%u_xon_2_xoff", i); |
| p += ETH_GSTRING_LEN; |
| } |
| /* BUG_ON(p - data != I40E_STATS_LEN * ETH_GSTRING_LEN); */ |
| break; |
| } |
| } |
| |
| static int i40e_get_ts_info(struct net_device *dev, |
| struct ethtool_ts_info *info) |
| { |
| struct i40e_pf *pf = i40e_netdev_to_pf(dev); |
| |
| 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; |
| |
| if (pf->ptp_clock) |
| info->phc_index = ptp_clock_index(pf->ptp_clock); |
| else |
| info->phc_index = -1; |
| |
| info->tx_types = (1 << HWTSTAMP_TX_OFF) | (1 << HWTSTAMP_TX_ON); |
| |
| info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) | |
| (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | |
| (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | |
| (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) | |
| (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); |
| |
| return 0; |
| } |
| |
| static int i40e_link_test(struct net_device *netdev, u64 *data) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_pf *pf = np->vsi->back; |
| |
| netif_info(pf, hw, netdev, "link test\n"); |
| if (i40e_get_link_status(&pf->hw)) |
| *data = 0; |
| else |
| *data = 1; |
| |
| return *data; |
| } |
| |
| static int i40e_reg_test(struct net_device *netdev, u64 *data) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_pf *pf = np->vsi->back; |
| |
| netif_info(pf, hw, netdev, "register test\n"); |
| *data = i40e_diag_reg_test(&pf->hw); |
| |
| return *data; |
| } |
| |
| static int i40e_eeprom_test(struct net_device *netdev, u64 *data) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_pf *pf = np->vsi->back; |
| |
| netif_info(pf, hw, netdev, "eeprom test\n"); |
| *data = i40e_diag_eeprom_test(&pf->hw); |
| |
| return *data; |
| } |
| |
| static int i40e_intr_test(struct net_device *netdev, u64 *data) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_pf *pf = np->vsi->back; |
| u16 swc_old = pf->sw_int_count; |
| |
| netif_info(pf, hw, netdev, "interrupt test\n"); |
| wr32(&pf->hw, I40E_PFINT_DYN_CTL0, |
| (I40E_PFINT_DYN_CTL0_INTENA_MASK | |
| I40E_PFINT_DYN_CTL0_SWINT_TRIG_MASK)); |
| usleep_range(1000, 2000); |
| *data = (swc_old == pf->sw_int_count); |
| |
| return *data; |
| } |
| |
| static int i40e_loopback_test(struct net_device *netdev, u64 *data) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_pf *pf = np->vsi->back; |
| |
| netif_info(pf, hw, netdev, "loopback test not implemented\n"); |
| *data = 0; |
| |
| return *data; |
| } |
| |
| static void i40e_diag_test(struct net_device *netdev, |
| struct ethtool_test *eth_test, u64 *data) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_pf *pf = np->vsi->back; |
| |
| if (eth_test->flags == ETH_TEST_FL_OFFLINE) { |
| /* Offline tests */ |
| netif_info(pf, drv, netdev, "offline testing starting\n"); |
| |
| set_bit(__I40E_TESTING, &pf->state); |
| |
| /* Link test performed before hardware reset |
| * so autoneg doesn't interfere with test result |
| */ |
| if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) |
| eth_test->flags |= ETH_TEST_FL_FAILED; |
| |
| if (i40e_eeprom_test(netdev, &data[I40E_ETH_TEST_EEPROM])) |
| eth_test->flags |= ETH_TEST_FL_FAILED; |
| |
| if (i40e_intr_test(netdev, &data[I40E_ETH_TEST_INTR])) |
| eth_test->flags |= ETH_TEST_FL_FAILED; |
| |
| if (i40e_loopback_test(netdev, &data[I40E_ETH_TEST_LOOPBACK])) |
| eth_test->flags |= ETH_TEST_FL_FAILED; |
| |
| /* run reg test last, a reset is required after it */ |
| if (i40e_reg_test(netdev, &data[I40E_ETH_TEST_REG])) |
| eth_test->flags |= ETH_TEST_FL_FAILED; |
| |
| clear_bit(__I40E_TESTING, &pf->state); |
| i40e_do_reset(pf, (1 << __I40E_PF_RESET_REQUESTED)); |
| } else { |
| /* Online tests */ |
| netif_info(pf, drv, netdev, "online testing starting\n"); |
| |
| if (i40e_link_test(netdev, &data[I40E_ETH_TEST_LINK])) |
| eth_test->flags |= ETH_TEST_FL_FAILED; |
| |
| /* Offline only tests, not run in online; pass by default */ |
| data[I40E_ETH_TEST_REG] = 0; |
| data[I40E_ETH_TEST_EEPROM] = 0; |
| data[I40E_ETH_TEST_INTR] = 0; |
| data[I40E_ETH_TEST_LOOPBACK] = 0; |
| } |
| |
| netif_info(pf, drv, netdev, "testing finished\n"); |
| } |
| |
| static void i40e_get_wol(struct net_device *netdev, |
| struct ethtool_wolinfo *wol) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_pf *pf = np->vsi->back; |
| struct i40e_hw *hw = &pf->hw; |
| u16 wol_nvm_bits; |
| |
| /* NVM bit on means WoL disabled for the port */ |
| i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); |
| if ((1 << hw->port) & wol_nvm_bits) { |
| wol->supported = 0; |
| wol->wolopts = 0; |
| } else { |
| wol->supported = WAKE_MAGIC; |
| wol->wolopts = (pf->wol_en ? WAKE_MAGIC : 0); |
| } |
| } |
| |
| static int i40e_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_pf *pf = np->vsi->back; |
| struct i40e_hw *hw = &pf->hw; |
| u16 wol_nvm_bits; |
| |
| /* NVM bit on means WoL disabled for the port */ |
| i40e_read_nvm_word(hw, I40E_SR_NVM_WAKE_ON_LAN, &wol_nvm_bits); |
| if (((1 << hw->port) & wol_nvm_bits)) |
| return -EOPNOTSUPP; |
| |
| /* only magic packet is supported */ |
| if (wol->wolopts && (wol->wolopts != WAKE_MAGIC)) |
| return -EOPNOTSUPP; |
| |
| /* is this a new value? */ |
| if (pf->wol_en != !!wol->wolopts) { |
| pf->wol_en = !!wol->wolopts; |
| device_set_wakeup_enable(&pf->pdev->dev, pf->wol_en); |
| } |
| |
| return 0; |
| } |
| |
| static int i40e_nway_reset(struct net_device *netdev) |
| { |
| /* restart autonegotiation */ |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_pf *pf = np->vsi->back; |
| struct i40e_hw *hw = &pf->hw; |
| i40e_status ret = 0; |
| |
| ret = i40e_aq_set_link_restart_an(hw, NULL); |
| if (ret) { |
| netdev_info(netdev, "link restart failed, aq_err=%d\n", |
| pf->hw.aq.asq_last_status); |
| return -EIO; |
| } |
| |
| return 0; |
| } |
| |
| static int i40e_set_phys_id(struct net_device *netdev, |
| enum ethtool_phys_id_state state) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_pf *pf = np->vsi->back; |
| struct i40e_hw *hw = &pf->hw; |
| int blink_freq = 2; |
| |
| switch (state) { |
| case ETHTOOL_ID_ACTIVE: |
| pf->led_status = i40e_led_get(hw); |
| return blink_freq; |
| case ETHTOOL_ID_ON: |
| i40e_led_set(hw, 0xF, false); |
| break; |
| case ETHTOOL_ID_OFF: |
| i40e_led_set(hw, 0x0, false); |
| break; |
| case ETHTOOL_ID_INACTIVE: |
| i40e_led_set(hw, pf->led_status, false); |
| break; |
| } |
| |
| return 0; |
| } |
| |
| /* NOTE: i40e hardware uses a conversion factor of 2 for Interrupt |
| * Throttle Rate (ITR) ie. ITR(1) = 2us ITR(10) = 20 us, and also |
| * 125us (8000 interrupts per second) == ITR(62) |
| */ |
| |
| static int i40e_get_coalesce(struct net_device *netdev, |
| struct ethtool_coalesce *ec) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_vsi *vsi = np->vsi; |
| |
| ec->tx_max_coalesced_frames_irq = vsi->work_limit; |
| ec->rx_max_coalesced_frames_irq = vsi->work_limit; |
| |
| if (ITR_IS_DYNAMIC(vsi->rx_itr_setting)) |
| ec->use_adaptive_rx_coalesce = 1; |
| |
| if (ITR_IS_DYNAMIC(vsi->tx_itr_setting)) |
| ec->use_adaptive_tx_coalesce = 1; |
| |
| ec->rx_coalesce_usecs = vsi->rx_itr_setting & ~I40E_ITR_DYNAMIC; |
| ec->tx_coalesce_usecs = vsi->tx_itr_setting & ~I40E_ITR_DYNAMIC; |
| |
| return 0; |
| } |
| |
| static int i40e_set_coalesce(struct net_device *netdev, |
| struct ethtool_coalesce *ec) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_q_vector *q_vector; |
| struct i40e_vsi *vsi = np->vsi; |
| struct i40e_pf *pf = vsi->back; |
| struct i40e_hw *hw = &pf->hw; |
| u16 vector; |
| int i; |
| |
| if (ec->tx_max_coalesced_frames_irq || ec->rx_max_coalesced_frames_irq) |
| vsi->work_limit = ec->tx_max_coalesced_frames_irq; |
| |
| vector = vsi->base_vector; |
| if ((ec->rx_coalesce_usecs >= (I40E_MIN_ITR << 1)) && |
| (ec->rx_coalesce_usecs <= (I40E_MAX_ITR << 1))) { |
| vsi->rx_itr_setting = ec->rx_coalesce_usecs; |
| } else if (ec->rx_coalesce_usecs == 0) { |
| vsi->rx_itr_setting = ec->rx_coalesce_usecs; |
| i40e_irq_dynamic_disable(vsi, vector); |
| if (ec->use_adaptive_rx_coalesce) |
| netif_info(pf, drv, netdev, |
| "Rx-secs=0, need to disable adaptive-Rx for a complete disable\n"); |
| } else { |
| netif_info(pf, drv, netdev, |
| "Invalid value, Rx-usecs range is 0, 8-8160\n"); |
| return -EINVAL; |
| } |
| |
| if ((ec->tx_coalesce_usecs >= (I40E_MIN_ITR << 1)) && |
| (ec->tx_coalesce_usecs <= (I40E_MAX_ITR << 1))) { |
| vsi->tx_itr_setting = ec->tx_coalesce_usecs; |
| } else if (ec->tx_coalesce_usecs == 0) { |
| vsi->tx_itr_setting = ec->tx_coalesce_usecs; |
| i40e_irq_dynamic_disable(vsi, vector); |
| if (ec->use_adaptive_tx_coalesce) |
| netif_info(pf, drv, netdev, |
| "Tx-secs=0, need to disable adaptive-Tx for a complete disable\n"); |
| } else { |
| netif_info(pf, drv, netdev, |
| "Invalid value, Tx-usecs range is 0, 8-8160\n"); |
| return -EINVAL; |
| } |
| |
| if (ec->use_adaptive_rx_coalesce) |
| vsi->rx_itr_setting |= I40E_ITR_DYNAMIC; |
| else |
| vsi->rx_itr_setting &= ~I40E_ITR_DYNAMIC; |
| |
| if (ec->use_adaptive_tx_coalesce) |
| vsi->tx_itr_setting |= I40E_ITR_DYNAMIC; |
| else |
| vsi->tx_itr_setting &= ~I40E_ITR_DYNAMIC; |
| |
| for (i = 0; i < vsi->num_q_vectors; i++, vector++) { |
| q_vector = vsi->q_vectors[i]; |
| q_vector->rx.itr = ITR_TO_REG(vsi->rx_itr_setting); |
| wr32(hw, I40E_PFINT_ITRN(0, vector - 1), q_vector->rx.itr); |
| q_vector->tx.itr = ITR_TO_REG(vsi->tx_itr_setting); |
| wr32(hw, I40E_PFINT_ITRN(1, vector - 1), q_vector->tx.itr); |
| i40e_flush(hw); |
| } |
| |
| return 0; |
| } |
| |
| /** |
| * i40e_get_rss_hash_opts - Get RSS hash Input Set for each flow type |
| * @pf: pointer to the physical function struct |
| * @cmd: ethtool rxnfc command |
| * |
| * Returns Success if the flow is supported, else Invalid Input. |
| **/ |
| static int i40e_get_rss_hash_opts(struct i40e_pf *pf, struct ethtool_rxnfc *cmd) |
| { |
| cmd->data = 0; |
| |
| /* Report default options for RSS on i40e */ |
| switch (cmd->flow_type) { |
| case TCP_V4_FLOW: |
| case UDP_V4_FLOW: |
| cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; |
| /* fall through to add IP fields */ |
| 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: |
| case UDP_V6_FLOW: |
| cmd->data |= RXH_L4_B_0_1 | RXH_L4_B_2_3; |
| /* fall through to add IP fields */ |
| 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; |
| } |
| |
| /** |
| * i40e_get_ethtool_fdir_all - Populates the rule count of a command |
| * @pf: Pointer to the physical function struct |
| * @cmd: The command to get or set Rx flow classification rules |
| * @rule_locs: Array of used rule locations |
| * |
| * This function populates both the total and actual rule count of |
| * the ethtool flow classification command |
| * |
| * Returns 0 on success or -EMSGSIZE if entry not found |
| **/ |
| static int i40e_get_ethtool_fdir_all(struct i40e_pf *pf, |
| struct ethtool_rxnfc *cmd, |
| u32 *rule_locs) |
| { |
| struct i40e_fdir_filter *rule; |
| struct hlist_node *node2; |
| int cnt = 0; |
| |
| /* report total rule count */ |
| cmd->data = i40e_get_fd_cnt_all(pf); |
| |
| hlist_for_each_entry_safe(rule, node2, |
| &pf->fdir_filter_list, fdir_node) { |
| if (cnt == cmd->rule_cnt) |
| return -EMSGSIZE; |
| |
| rule_locs[cnt] = rule->fd_id; |
| cnt++; |
| } |
| |
| cmd->rule_cnt = cnt; |
| |
| return 0; |
| } |
| |
| /** |
| * i40e_get_ethtool_fdir_entry - Look up a filter based on Rx flow |
| * @pf: Pointer to the physical function struct |
| * @cmd: The command to get or set Rx flow classification rules |
| * |
| * This function looks up a filter based on the Rx flow classification |
| * command and fills the flow spec info for it if found |
| * |
| * Returns 0 on success or -EINVAL if filter not found |
| **/ |
| static int i40e_get_ethtool_fdir_entry(struct i40e_pf *pf, |
| struct ethtool_rxnfc *cmd) |
| { |
| struct ethtool_rx_flow_spec *fsp = |
| (struct ethtool_rx_flow_spec *)&cmd->fs; |
| struct i40e_fdir_filter *rule = NULL; |
| struct hlist_node *node2; |
| |
| hlist_for_each_entry_safe(rule, node2, |
| &pf->fdir_filter_list, fdir_node) { |
| if (fsp->location <= rule->fd_id) |
| break; |
| } |
| |
| if (!rule || fsp->location != rule->fd_id) |
| return -EINVAL; |
| |
| fsp->flow_type = rule->flow_type; |
| if (fsp->flow_type == IP_USER_FLOW) { |
| fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4; |
| fsp->h_u.usr_ip4_spec.proto = 0; |
| fsp->m_u.usr_ip4_spec.proto = 0; |
| } |
| |
| /* Reverse the src and dest notion, since the HW views them from |
| * Tx perspective where as the user expects it from Rx filter view. |
| */ |
| fsp->h_u.tcp_ip4_spec.psrc = rule->dst_port; |
| fsp->h_u.tcp_ip4_spec.pdst = rule->src_port; |
| fsp->h_u.tcp_ip4_spec.ip4src = rule->dst_ip[0]; |
| fsp->h_u.tcp_ip4_spec.ip4dst = rule->src_ip[0]; |
| |
| if (rule->dest_ctl == I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET) |
| fsp->ring_cookie = RX_CLS_FLOW_DISC; |
| else |
| fsp->ring_cookie = rule->q_index; |
| |
| return 0; |
| } |
| |
| /** |
| * i40e_get_rxnfc - command to get RX flow classification rules |
| * @netdev: network interface device structure |
| * @cmd: ethtool rxnfc command |
| * |
| * Returns Success if the command is supported. |
| **/ |
| static int i40e_get_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd, |
| u32 *rule_locs) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_vsi *vsi = np->vsi; |
| struct i40e_pf *pf = vsi->back; |
| int ret = -EOPNOTSUPP; |
| |
| switch (cmd->cmd) { |
| case ETHTOOL_GRXRINGS: |
| cmd->data = vsi->alloc_queue_pairs; |
| ret = 0; |
| break; |
| case ETHTOOL_GRXFH: |
| ret = i40e_get_rss_hash_opts(pf, cmd); |
| break; |
| case ETHTOOL_GRXCLSRLCNT: |
| cmd->rule_cnt = pf->fdir_pf_active_filters; |
| /* report total rule count */ |
| cmd->data = i40e_get_fd_cnt_all(pf); |
| ret = 0; |
| break; |
| case ETHTOOL_GRXCLSRULE: |
| ret = i40e_get_ethtool_fdir_entry(pf, cmd); |
| break; |
| case ETHTOOL_GRXCLSRLALL: |
| ret = i40e_get_ethtool_fdir_all(pf, cmd, rule_locs); |
| break; |
| default: |
| break; |
| } |
| |
| return ret; |
| } |
| |
| /** |
| * i40e_set_rss_hash_opt - Enable/Disable flow types for RSS hash |
| * @pf: pointer to the physical function struct |
| * @cmd: ethtool rxnfc command |
| * |
| * Returns Success if the flow input set is supported. |
| **/ |
| static int i40e_set_rss_hash_opt(struct i40e_pf *pf, struct ethtool_rxnfc *nfc) |
| { |
| struct i40e_hw *hw = &pf->hw; |
| u64 hena = (u64)rd32(hw, I40E_PFQF_HENA(0)) | |
| ((u64)rd32(hw, I40E_PFQF_HENA(1)) << 32); |
| |
| /* 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; |
| |
| /* We need at least the IP SRC and DEST fields for hashing */ |
| if (!(nfc->data & RXH_IP_SRC) || |
| !(nfc->data & RXH_IP_DST)) |
| return -EINVAL; |
| |
| switch (nfc->flow_type) { |
| case TCP_V4_FLOW: |
| switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { |
| case 0: |
| hena &= ~((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP); |
| break; |
| case (RXH_L4_B_0_1 | RXH_L4_B_2_3): |
| hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_TCP); |
| break; |
| default: |
| return -EINVAL; |
| } |
| break; |
| case TCP_V6_FLOW: |
| switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { |
| case 0: |
| hena &= ~((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP); |
| break; |
| case (RXH_L4_B_0_1 | RXH_L4_B_2_3): |
| hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_TCP); |
| break; |
| default: |
| return -EINVAL; |
| } |
| break; |
| case UDP_V4_FLOW: |
| switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { |
| case 0: |
| hena &= ~(((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_UDP) | |
| ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4)); |
| break; |
| case (RXH_L4_B_0_1 | RXH_L4_B_2_3): |
| hena |= (((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_UDP) | |
| ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4)); |
| break; |
| default: |
| return -EINVAL; |
| } |
| break; |
| case UDP_V6_FLOW: |
| switch (nfc->data & (RXH_L4_B_0_1 | RXH_L4_B_2_3)) { |
| case 0: |
| hena &= ~(((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP) | |
| ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6)); |
| break; |
| case (RXH_L4_B_0_1 | RXH_L4_B_2_3): |
| hena |= (((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_UDP) | |
| ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6)); |
| break; |
| default: |
| return -EINVAL; |
| } |
| break; |
| case AH_ESP_V4_FLOW: |
| case AH_V4_FLOW: |
| case ESP_V4_FLOW: |
| case SCTP_V4_FLOW: |
| if ((nfc->data & RXH_L4_B_0_1) || |
| (nfc->data & RXH_L4_B_2_3)) |
| return -EINVAL; |
| hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER); |
| break; |
| case AH_ESP_V6_FLOW: |
| case AH_V6_FLOW: |
| case ESP_V6_FLOW: |
| case SCTP_V6_FLOW: |
| if ((nfc->data & RXH_L4_B_0_1) || |
| (nfc->data & RXH_L4_B_2_3)) |
| return -EINVAL; |
| hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER); |
| break; |
| case IPV4_FLOW: |
| hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV4_OTHER) | |
| ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV4); |
| break; |
| case IPV6_FLOW: |
| hena |= ((u64)1 << I40E_FILTER_PCTYPE_NONF_IPV6_OTHER) | |
| ((u64)1 << I40E_FILTER_PCTYPE_FRAG_IPV6); |
| break; |
| default: |
| return -EINVAL; |
| } |
| |
| wr32(hw, I40E_PFQF_HENA(0), (u32)hena); |
| wr32(hw, I40E_PFQF_HENA(1), (u32)(hena >> 32)); |
| i40e_flush(hw); |
| |
| return 0; |
| } |
| |
| /** |
| * i40e_match_fdir_input_set - Match a new filter against an existing one |
| * @rule: The filter already added |
| * @input: The new filter to comapre against |
| * |
| * Returns true if the two input set match |
| **/ |
| static bool i40e_match_fdir_input_set(struct i40e_fdir_filter *rule, |
| struct i40e_fdir_filter *input) |
| { |
| if ((rule->dst_ip[0] != input->dst_ip[0]) || |
| (rule->src_ip[0] != input->src_ip[0]) || |
| (rule->dst_port != input->dst_port) || |
| (rule->src_port != input->src_port)) |
| return false; |
| return true; |
| } |
| |
| /** |
| * i40e_update_ethtool_fdir_entry - Updates the fdir filter entry |
| * @vsi: Pointer to the targeted VSI |
| * @input: The filter to update or NULL to indicate deletion |
| * @sw_idx: Software index to the filter |
| * @cmd: The command to get or set Rx flow classification rules |
| * |
| * This function updates (or deletes) a Flow Director entry from |
| * the hlist of the corresponding PF |
| * |
| * Returns 0 on success |
| **/ |
| static int i40e_update_ethtool_fdir_entry(struct i40e_vsi *vsi, |
| struct i40e_fdir_filter *input, |
| u16 sw_idx, |
| struct ethtool_rxnfc *cmd) |
| { |
| struct i40e_fdir_filter *rule, *parent; |
| struct i40e_pf *pf = vsi->back; |
| struct hlist_node *node2; |
| int err = -EINVAL; |
| |
| parent = NULL; |
| rule = NULL; |
| |
| hlist_for_each_entry_safe(rule, node2, |
| &pf->fdir_filter_list, fdir_node) { |
| /* hash found, or no matching entry */ |
| if (rule->fd_id >= sw_idx) |
| break; |
| parent = rule; |
| } |
| |
| /* if there is an old rule occupying our place remove it */ |
| if (rule && (rule->fd_id == sw_idx)) { |
| if (input && !i40e_match_fdir_input_set(rule, input)) |
| err = i40e_add_del_fdir(vsi, rule, false); |
| else if (!input) |
| err = i40e_add_del_fdir(vsi, rule, false); |
| hlist_del(&rule->fdir_node); |
| kfree(rule); |
| pf->fdir_pf_active_filters--; |
| } |
| |
| /* If no input this was a delete, err should be 0 if a rule was |
| * successfully found and removed from the list else -EINVAL |
| */ |
| if (!input) |
| return err; |
| |
| /* initialize node and set software index */ |
| INIT_HLIST_NODE(&input->fdir_node); |
| |
| /* add filter to the list */ |
| if (parent) |
| hlist_add_after(&parent->fdir_node, &input->fdir_node); |
| else |
| hlist_add_head(&input->fdir_node, |
| &pf->fdir_filter_list); |
| |
| /* update counts */ |
| pf->fdir_pf_active_filters++; |
| |
| return 0; |
| } |
| |
| /** |
| * i40e_del_fdir_entry - Deletes a Flow Director filter entry |
| * @vsi: Pointer to the targeted VSI |
| * @cmd: The command to get or set Rx flow classification rules |
| * |
| * The function removes a Flow Director filter entry from the |
| * hlist of the corresponding PF |
| * |
| * Returns 0 on success |
| */ |
| static int i40e_del_fdir_entry(struct i40e_vsi *vsi, |
| struct ethtool_rxnfc *cmd) |
| { |
| struct ethtool_rx_flow_spec *fsp = |
| (struct ethtool_rx_flow_spec *)&cmd->fs; |
| struct i40e_pf *pf = vsi->back; |
| int ret = 0; |
| |
| ret = i40e_update_ethtool_fdir_entry(vsi, NULL, fsp->location, cmd); |
| |
| i40e_fdir_check_and_reenable(pf); |
| return ret; |
| } |
| |
| /** |
| * i40e_add_fdir_ethtool - Add/Remove Flow Director filters |
| * @vsi: pointer to the targeted VSI |
| * @cmd: command to get or set RX flow classification rules |
| * |
| * Add Flow Director filters for a specific flow spec based on their |
| * protocol. Returns 0 if the filters were successfully added. |
| **/ |
| static int i40e_add_fdir_ethtool(struct i40e_vsi *vsi, |
| struct ethtool_rxnfc *cmd) |
| { |
| struct ethtool_rx_flow_spec *fsp; |
| struct i40e_fdir_filter *input; |
| struct i40e_pf *pf; |
| int ret = -EINVAL; |
| |
| if (!vsi) |
| return -EINVAL; |
| |
| pf = vsi->back; |
| |
| if (!(pf->flags & I40E_FLAG_FD_SB_ENABLED)) |
| return -EOPNOTSUPP; |
| |
| if (pf->auto_disable_flags & I40E_FLAG_FD_SB_ENABLED) |
| return -ENOSPC; |
| |
| fsp = (struct ethtool_rx_flow_spec *)&cmd->fs; |
| |
| if (fsp->location >= (pf->hw.func_caps.fd_filters_best_effort + |
| pf->hw.func_caps.fd_filters_guaranteed)) { |
| return -EINVAL; |
| } |
| |
| if ((fsp->ring_cookie != RX_CLS_FLOW_DISC) && |
| (fsp->ring_cookie >= vsi->num_queue_pairs)) |
| return -EINVAL; |
| |
| input = kzalloc(sizeof(*input), GFP_KERNEL); |
| |
| if (!input) |
| return -ENOMEM; |
| |
| input->fd_id = fsp->location; |
| |
| if (fsp->ring_cookie == RX_CLS_FLOW_DISC) |
| input->dest_ctl = I40E_FILTER_PROGRAM_DESC_DEST_DROP_PACKET; |
| else |
| input->dest_ctl = |
| I40E_FILTER_PROGRAM_DESC_DEST_DIRECT_PACKET_QINDEX; |
| |
| input->q_index = fsp->ring_cookie; |
| input->flex_off = 0; |
| input->pctype = 0; |
| input->dest_vsi = vsi->id; |
| input->fd_status = I40E_FILTER_PROGRAM_DESC_FD_STATUS_FD_ID; |
| input->cnt_index = pf->fd_sb_cnt_idx; |
| input->flow_type = fsp->flow_type; |
| input->ip4_proto = fsp->h_u.usr_ip4_spec.proto; |
| |
| /* Reverse the src and dest notion, since the HW expects them to be from |
| * Tx perspective where as the input from user is from Rx filter view. |
| */ |
| input->dst_port = fsp->h_u.tcp_ip4_spec.psrc; |
| input->src_port = fsp->h_u.tcp_ip4_spec.pdst; |
| input->dst_ip[0] = fsp->h_u.tcp_ip4_spec.ip4src; |
| input->src_ip[0] = fsp->h_u.tcp_ip4_spec.ip4dst; |
| |
| ret = i40e_add_del_fdir(vsi, input, true); |
| if (ret) |
| kfree(input); |
| else |
| i40e_update_ethtool_fdir_entry(vsi, input, fsp->location, NULL); |
| |
| return ret; |
| } |
| |
| /** |
| * i40e_set_rxnfc - command to set RX flow classification rules |
| * @netdev: network interface device structure |
| * @cmd: ethtool rxnfc command |
| * |
| * Returns Success if the command is supported. |
| **/ |
| static int i40e_set_rxnfc(struct net_device *netdev, struct ethtool_rxnfc *cmd) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(netdev); |
| struct i40e_vsi *vsi = np->vsi; |
| struct i40e_pf *pf = vsi->back; |
| int ret = -EOPNOTSUPP; |
| |
| switch (cmd->cmd) { |
| case ETHTOOL_SRXFH: |
| ret = i40e_set_rss_hash_opt(pf, cmd); |
| break; |
| case ETHTOOL_SRXCLSRLINS: |
| ret = i40e_add_fdir_ethtool(vsi, cmd); |
| break; |
| case ETHTOOL_SRXCLSRLDEL: |
| ret = i40e_del_fdir_entry(vsi, cmd); |
| break; |
| default: |
| break; |
| } |
| |
| return ret; |
| } |
| |
| /** |
| * i40e_max_channels - get Max number of combined channels supported |
| * @vsi: vsi pointer |
| **/ |
| static unsigned int i40e_max_channels(struct i40e_vsi *vsi) |
| { |
| /* TODO: This code assumes DCB and FD is disabled for now. */ |
| return vsi->alloc_queue_pairs; |
| } |
| |
| /** |
| * i40e_get_channels - Get the current channels enabled and max supported etc. |
| * @netdev: network interface device structure |
| * @ch: ethtool channels structure |
| * |
| * We don't support separate tx and rx queues as channels. The other count |
| * represents how many queues are being used for control. max_combined counts |
| * how many queue pairs we can support. They may not be mapped 1 to 1 with |
| * q_vectors since we support a lot more queue pairs than q_vectors. |
| **/ |
| static void i40e_get_channels(struct net_device *dev, |
| struct ethtool_channels *ch) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(dev); |
| struct i40e_vsi *vsi = np->vsi; |
| struct i40e_pf *pf = vsi->back; |
| |
| /* report maximum channels */ |
| ch->max_combined = i40e_max_channels(vsi); |
| |
| /* report info for other vector */ |
| ch->other_count = (pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0; |
| ch->max_other = ch->other_count; |
| |
| /* Note: This code assumes DCB is disabled for now. */ |
| ch->combined_count = vsi->num_queue_pairs; |
| } |
| |
| /** |
| * i40e_set_channels - Set the new channels count. |
| * @netdev: network interface device structure |
| * @ch: ethtool channels structure |
| * |
| * The new channels count may not be the same as requested by the user |
| * since it gets rounded down to a power of 2 value. |
| **/ |
| static int i40e_set_channels(struct net_device *dev, |
| struct ethtool_channels *ch) |
| { |
| struct i40e_netdev_priv *np = netdev_priv(dev); |
| unsigned int count = ch->combined_count; |
| struct i40e_vsi *vsi = np->vsi; |
| struct i40e_pf *pf = vsi->back; |
| int new_count; |
| |
| /* We do not support setting channels for any other VSI at present */ |
| if (vsi->type != I40E_VSI_MAIN) |
| return -EINVAL; |
| |
| /* 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 != ((pf->flags & I40E_FLAG_FD_SB_ENABLED) ? 1 : 0)) |
| return -EINVAL; |
| |
| /* verify the number of channels does not exceed hardware limits */ |
| if (count > i40e_max_channels(vsi)) |
| return -EINVAL; |
| |
| /* update feature limits from largest to smallest supported values */ |
| /* TODO: Flow director limit, DCB etc */ |
| |
| /* cap RSS limit */ |
| if (count > pf->rss_size_max) |
| count = pf->rss_size_max; |
| |
| /* use rss_reconfig to rebuild with new queue count and update traffic |
| * class queue mapping |
| */ |
| new_count = i40e_reconfig_rss_queues(pf, count); |
| if (new_count > 0) |
| return 0; |
| else |
| return -EINVAL; |
| } |
| |
| static const struct ethtool_ops i40e_ethtool_ops = { |
| .get_settings = i40e_get_settings, |
| .get_drvinfo = i40e_get_drvinfo, |
| .get_regs_len = i40e_get_regs_len, |
| .get_regs = i40e_get_regs, |
| .nway_reset = i40e_nway_reset, |
| .get_link = ethtool_op_get_link, |
| .get_wol = i40e_get_wol, |
| .set_wol = i40e_set_wol, |
| .get_eeprom_len = i40e_get_eeprom_len, |
| .get_eeprom = i40e_get_eeprom, |
| .get_ringparam = i40e_get_ringparam, |
| .set_ringparam = i40e_set_ringparam, |
| .get_pauseparam = i40e_get_pauseparam, |
| .get_msglevel = i40e_get_msglevel, |
| .set_msglevel = i40e_set_msglevel, |
| .get_rxnfc = i40e_get_rxnfc, |
| .set_rxnfc = i40e_set_rxnfc, |
| .self_test = i40e_diag_test, |
| .get_strings = i40e_get_strings, |
| .set_phys_id = i40e_set_phys_id, |
| .get_sset_count = i40e_get_sset_count, |
| .get_ethtool_stats = i40e_get_ethtool_stats, |
| .get_coalesce = i40e_get_coalesce, |
| .set_coalesce = i40e_set_coalesce, |
| .get_channels = i40e_get_channels, |
| .set_channels = i40e_set_channels, |
| .get_ts_info = i40e_get_ts_info, |
| }; |
| |
| void i40e_set_ethtool_ops(struct net_device *netdev) |
| { |
| netdev->ethtool_ops = &i40e_ethtool_ops; |
| } |