mirror of https://gitee.com/openkylin/linux.git
457 lines
12 KiB
C
457 lines
12 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright(c) 2009 - 2018 Intel Corporation. */
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/* ethtool support for igbvf */
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#include <linux/netdevice.h>
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#include <linux/ethtool.h>
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#include <linux/pci.h>
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#include <linux/vmalloc.h>
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#include <linux/delay.h>
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#include "igbvf.h"
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#include <linux/if_vlan.h>
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struct igbvf_stats {
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char stat_string[ETH_GSTRING_LEN];
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int sizeof_stat;
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int stat_offset;
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int base_stat_offset;
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};
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#define IGBVF_STAT(current, base) \
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sizeof(((struct igbvf_adapter *)0)->current), \
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offsetof(struct igbvf_adapter, current), \
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offsetof(struct igbvf_adapter, base)
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static const struct igbvf_stats igbvf_gstrings_stats[] = {
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{ "rx_packets", IGBVF_STAT(stats.gprc, stats.base_gprc) },
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{ "tx_packets", IGBVF_STAT(stats.gptc, stats.base_gptc) },
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{ "rx_bytes", IGBVF_STAT(stats.gorc, stats.base_gorc) },
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{ "tx_bytes", IGBVF_STAT(stats.gotc, stats.base_gotc) },
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{ "multicast", IGBVF_STAT(stats.mprc, stats.base_mprc) },
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{ "lbrx_bytes", IGBVF_STAT(stats.gorlbc, stats.base_gorlbc) },
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{ "lbrx_packets", IGBVF_STAT(stats.gprlbc, stats.base_gprlbc) },
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{ "tx_restart_queue", IGBVF_STAT(restart_queue, zero_base) },
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{ "rx_long_byte_count", IGBVF_STAT(stats.gorc, stats.base_gorc) },
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{ "rx_csum_offload_good", IGBVF_STAT(hw_csum_good, zero_base) },
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{ "rx_csum_offload_errors", IGBVF_STAT(hw_csum_err, zero_base) },
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{ "rx_header_split", IGBVF_STAT(rx_hdr_split, zero_base) },
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{ "alloc_rx_buff_failed", IGBVF_STAT(alloc_rx_buff_failed, zero_base) },
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};
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#define IGBVF_GLOBAL_STATS_LEN ARRAY_SIZE(igbvf_gstrings_stats)
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static const char igbvf_gstrings_test[][ETH_GSTRING_LEN] = {
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"Link test (on/offline)"
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};
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#define IGBVF_TEST_LEN ARRAY_SIZE(igbvf_gstrings_test)
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static int igbvf_get_link_ksettings(struct net_device *netdev,
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struct ethtool_link_ksettings *cmd)
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{
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struct igbvf_adapter *adapter = netdev_priv(netdev);
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struct e1000_hw *hw = &adapter->hw;
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u32 status;
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ethtool_link_ksettings_zero_link_mode(cmd, supported);
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ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
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ethtool_link_ksettings_zero_link_mode(cmd, advertising);
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ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
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cmd->base.port = -1;
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status = er32(STATUS);
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if (status & E1000_STATUS_LU) {
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if (status & E1000_STATUS_SPEED_1000)
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cmd->base.speed = SPEED_1000;
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else if (status & E1000_STATUS_SPEED_100)
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cmd->base.speed = SPEED_100;
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else
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cmd->base.speed = SPEED_10;
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if (status & E1000_STATUS_FD)
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cmd->base.duplex = DUPLEX_FULL;
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else
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cmd->base.duplex = DUPLEX_HALF;
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} else {
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cmd->base.speed = SPEED_UNKNOWN;
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cmd->base.duplex = DUPLEX_UNKNOWN;
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}
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cmd->base.autoneg = AUTONEG_DISABLE;
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return 0;
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}
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static int igbvf_set_link_ksettings(struct net_device *netdev,
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const struct ethtool_link_ksettings *cmd)
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{
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return -EOPNOTSUPP;
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}
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static void igbvf_get_pauseparam(struct net_device *netdev,
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struct ethtool_pauseparam *pause)
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{
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}
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static int igbvf_set_pauseparam(struct net_device *netdev,
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struct ethtool_pauseparam *pause)
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{
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return -EOPNOTSUPP;
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}
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static u32 igbvf_get_msglevel(struct net_device *netdev)
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{
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struct igbvf_adapter *adapter = netdev_priv(netdev);
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return adapter->msg_enable;
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}
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static void igbvf_set_msglevel(struct net_device *netdev, u32 data)
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{
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struct igbvf_adapter *adapter = netdev_priv(netdev);
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adapter->msg_enable = data;
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}
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static int igbvf_get_regs_len(struct net_device *netdev)
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{
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#define IGBVF_REGS_LEN 8
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return IGBVF_REGS_LEN * sizeof(u32);
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}
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static void igbvf_get_regs(struct net_device *netdev,
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struct ethtool_regs *regs, void *p)
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{
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struct igbvf_adapter *adapter = netdev_priv(netdev);
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struct e1000_hw *hw = &adapter->hw;
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u32 *regs_buff = p;
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memset(p, 0, IGBVF_REGS_LEN * sizeof(u32));
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regs->version = (1u << 24) |
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(adapter->pdev->revision << 16) |
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adapter->pdev->device;
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regs_buff[0] = er32(CTRL);
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regs_buff[1] = er32(STATUS);
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regs_buff[2] = er32(RDLEN(0));
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regs_buff[3] = er32(RDH(0));
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regs_buff[4] = er32(RDT(0));
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regs_buff[5] = er32(TDLEN(0));
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regs_buff[6] = er32(TDH(0));
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regs_buff[7] = er32(TDT(0));
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}
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static int igbvf_get_eeprom_len(struct net_device *netdev)
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{
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return 0;
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}
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static int igbvf_get_eeprom(struct net_device *netdev,
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struct ethtool_eeprom *eeprom, u8 *bytes)
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{
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return -EOPNOTSUPP;
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}
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static int igbvf_set_eeprom(struct net_device *netdev,
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struct ethtool_eeprom *eeprom, u8 *bytes)
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{
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return -EOPNOTSUPP;
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}
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static void igbvf_get_drvinfo(struct net_device *netdev,
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struct ethtool_drvinfo *drvinfo)
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{
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struct igbvf_adapter *adapter = netdev_priv(netdev);
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strlcpy(drvinfo->driver, igbvf_driver_name, sizeof(drvinfo->driver));
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strlcpy(drvinfo->version, igbvf_driver_version,
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sizeof(drvinfo->version));
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strlcpy(drvinfo->bus_info, pci_name(adapter->pdev),
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sizeof(drvinfo->bus_info));
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}
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static void igbvf_get_ringparam(struct net_device *netdev,
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struct ethtool_ringparam *ring)
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{
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struct igbvf_adapter *adapter = netdev_priv(netdev);
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struct igbvf_ring *tx_ring = adapter->tx_ring;
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struct igbvf_ring *rx_ring = adapter->rx_ring;
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ring->rx_max_pending = IGBVF_MAX_RXD;
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ring->tx_max_pending = IGBVF_MAX_TXD;
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ring->rx_pending = rx_ring->count;
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ring->tx_pending = tx_ring->count;
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}
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static int igbvf_set_ringparam(struct net_device *netdev,
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struct ethtool_ringparam *ring)
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{
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struct igbvf_adapter *adapter = netdev_priv(netdev);
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struct igbvf_ring *temp_ring;
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int err = 0;
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u32 new_rx_count, new_tx_count;
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if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
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return -EINVAL;
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new_rx_count = max_t(u32, ring->rx_pending, IGBVF_MIN_RXD);
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new_rx_count = min_t(u32, new_rx_count, IGBVF_MAX_RXD);
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new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
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new_tx_count = max_t(u32, ring->tx_pending, IGBVF_MIN_TXD);
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new_tx_count = min_t(u32, new_tx_count, IGBVF_MAX_TXD);
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new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
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if ((new_tx_count == adapter->tx_ring->count) &&
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(new_rx_count == adapter->rx_ring->count)) {
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/* nothing to do */
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return 0;
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}
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while (test_and_set_bit(__IGBVF_RESETTING, &adapter->state))
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usleep_range(1000, 2000);
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if (!netif_running(adapter->netdev)) {
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adapter->tx_ring->count = new_tx_count;
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adapter->rx_ring->count = new_rx_count;
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goto clear_reset;
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}
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temp_ring = vmalloc(sizeof(struct igbvf_ring));
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if (!temp_ring) {
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err = -ENOMEM;
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goto clear_reset;
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}
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igbvf_down(adapter);
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/* We can't just free everything and then setup again,
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* because the ISRs in MSI-X mode get passed pointers
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* to the Tx and Rx ring structs.
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*/
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if (new_tx_count != adapter->tx_ring->count) {
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memcpy(temp_ring, adapter->tx_ring, sizeof(struct igbvf_ring));
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temp_ring->count = new_tx_count;
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err = igbvf_setup_tx_resources(adapter, temp_ring);
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if (err)
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goto err_setup;
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igbvf_free_tx_resources(adapter->tx_ring);
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memcpy(adapter->tx_ring, temp_ring, sizeof(struct igbvf_ring));
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}
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if (new_rx_count != adapter->rx_ring->count) {
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memcpy(temp_ring, adapter->rx_ring, sizeof(struct igbvf_ring));
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temp_ring->count = new_rx_count;
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err = igbvf_setup_rx_resources(adapter, temp_ring);
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if (err)
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goto err_setup;
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igbvf_free_rx_resources(adapter->rx_ring);
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memcpy(adapter->rx_ring, temp_ring, sizeof(struct igbvf_ring));
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}
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err_setup:
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igbvf_up(adapter);
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vfree(temp_ring);
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clear_reset:
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clear_bit(__IGBVF_RESETTING, &adapter->state);
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return err;
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}
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static int igbvf_link_test(struct igbvf_adapter *adapter, u64 *data)
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{
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struct e1000_hw *hw = &adapter->hw;
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*data = 0;
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spin_lock_bh(&hw->mbx_lock);
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hw->mac.ops.check_for_link(hw);
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spin_unlock_bh(&hw->mbx_lock);
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if (!(er32(STATUS) & E1000_STATUS_LU))
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*data = 1;
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return *data;
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}
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static void igbvf_diag_test(struct net_device *netdev,
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struct ethtool_test *eth_test, u64 *data)
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{
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struct igbvf_adapter *adapter = netdev_priv(netdev);
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set_bit(__IGBVF_TESTING, &adapter->state);
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/* Link test performed before hardware reset so autoneg doesn't
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* interfere with test result
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*/
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if (igbvf_link_test(adapter, &data[0]))
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eth_test->flags |= ETH_TEST_FL_FAILED;
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clear_bit(__IGBVF_TESTING, &adapter->state);
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msleep_interruptible(4 * 1000);
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}
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static void igbvf_get_wol(struct net_device *netdev,
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struct ethtool_wolinfo *wol)
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{
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wol->supported = 0;
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wol->wolopts = 0;
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}
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static int igbvf_set_wol(struct net_device *netdev,
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struct ethtool_wolinfo *wol)
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{
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return -EOPNOTSUPP;
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}
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static int igbvf_get_coalesce(struct net_device *netdev,
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struct ethtool_coalesce *ec)
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{
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struct igbvf_adapter *adapter = netdev_priv(netdev);
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if (adapter->requested_itr <= 3)
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ec->rx_coalesce_usecs = adapter->requested_itr;
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else
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ec->rx_coalesce_usecs = adapter->current_itr >> 2;
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return 0;
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}
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static int igbvf_set_coalesce(struct net_device *netdev,
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struct ethtool_coalesce *ec)
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{
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struct igbvf_adapter *adapter = netdev_priv(netdev);
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struct e1000_hw *hw = &adapter->hw;
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if ((ec->rx_coalesce_usecs >= IGBVF_MIN_ITR_USECS) &&
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(ec->rx_coalesce_usecs <= IGBVF_MAX_ITR_USECS)) {
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adapter->current_itr = ec->rx_coalesce_usecs << 2;
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adapter->requested_itr = 1000000000 /
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(adapter->current_itr * 256);
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} else if ((ec->rx_coalesce_usecs == 3) ||
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(ec->rx_coalesce_usecs == 2)) {
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adapter->current_itr = IGBVF_START_ITR;
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adapter->requested_itr = ec->rx_coalesce_usecs;
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} else if (ec->rx_coalesce_usecs == 0) {
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/* The user's desire is to turn off interrupt throttling
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* altogether, but due to HW limitations, we can't do that.
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* Instead we set a very small value in EITR, which would
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* allow ~967k interrupts per second, but allow the adapter's
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* internal clocking to still function properly.
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*/
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adapter->current_itr = 4;
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adapter->requested_itr = 1000000000 /
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(adapter->current_itr * 256);
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} else {
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return -EINVAL;
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}
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writel(adapter->current_itr,
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hw->hw_addr + adapter->rx_ring->itr_register);
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return 0;
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}
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static int igbvf_nway_reset(struct net_device *netdev)
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{
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struct igbvf_adapter *adapter = netdev_priv(netdev);
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if (netif_running(netdev))
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igbvf_reinit_locked(adapter);
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return 0;
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}
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static void igbvf_get_ethtool_stats(struct net_device *netdev,
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struct ethtool_stats *stats,
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u64 *data)
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{
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struct igbvf_adapter *adapter = netdev_priv(netdev);
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int i;
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igbvf_update_stats(adapter);
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for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
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char *p = (char *)adapter +
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igbvf_gstrings_stats[i].stat_offset;
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char *b = (char *)adapter +
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igbvf_gstrings_stats[i].base_stat_offset;
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data[i] = ((igbvf_gstrings_stats[i].sizeof_stat ==
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sizeof(u64)) ? (*(u64 *)p - *(u64 *)b) :
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(*(u32 *)p - *(u32 *)b));
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}
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}
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static int igbvf_get_sset_count(struct net_device *dev, int stringset)
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{
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switch (stringset) {
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case ETH_SS_TEST:
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return IGBVF_TEST_LEN;
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case ETH_SS_STATS:
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return IGBVF_GLOBAL_STATS_LEN;
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default:
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return -EINVAL;
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}
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}
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static void igbvf_get_strings(struct net_device *netdev, u32 stringset,
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u8 *data)
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{
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u8 *p = data;
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int i;
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switch (stringset) {
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case ETH_SS_TEST:
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memcpy(data, *igbvf_gstrings_test, sizeof(igbvf_gstrings_test));
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break;
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case ETH_SS_STATS:
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for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
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memcpy(p, igbvf_gstrings_stats[i].stat_string,
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ETH_GSTRING_LEN);
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p += ETH_GSTRING_LEN;
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}
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break;
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}
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}
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static const struct ethtool_ops igbvf_ethtool_ops = {
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.get_drvinfo = igbvf_get_drvinfo,
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.get_regs_len = igbvf_get_regs_len,
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.get_regs = igbvf_get_regs,
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.get_wol = igbvf_get_wol,
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.set_wol = igbvf_set_wol,
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.get_msglevel = igbvf_get_msglevel,
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.set_msglevel = igbvf_set_msglevel,
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.nway_reset = igbvf_nway_reset,
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.get_link = ethtool_op_get_link,
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.get_eeprom_len = igbvf_get_eeprom_len,
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.get_eeprom = igbvf_get_eeprom,
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.set_eeprom = igbvf_set_eeprom,
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.get_ringparam = igbvf_get_ringparam,
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.set_ringparam = igbvf_set_ringparam,
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.get_pauseparam = igbvf_get_pauseparam,
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.set_pauseparam = igbvf_set_pauseparam,
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.self_test = igbvf_diag_test,
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.get_sset_count = igbvf_get_sset_count,
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.get_strings = igbvf_get_strings,
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.get_ethtool_stats = igbvf_get_ethtool_stats,
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.get_coalesce = igbvf_get_coalesce,
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.set_coalesce = igbvf_set_coalesce,
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.get_link_ksettings = igbvf_get_link_ksettings,
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.set_link_ksettings = igbvf_set_link_ksettings,
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};
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void igbvf_set_ethtool_ops(struct net_device *netdev)
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{
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netdev->ethtool_ops = &igbvf_ethtool_ops;
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}
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