![Kamal Heib](/assets/img/avatar_default.png)
This patch removes the ugly macro hack to make sure hw_stats and ethtool strings are consisten, instead define a new struct which will hold the stat string and his index within the hw_stats struct. Signed-off-by: Kamal Heib <kamalheib1@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
250 lines
6.3 KiB
C
250 lines
6.3 KiB
C
/* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* Copyright (C) 2009-2016 John Crispin <blogic@openwrt.org>
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* Copyright (C) 2009-2016 Felix Fietkau <nbd@openwrt.org>
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* Copyright (C) 2013-2016 Michael Lee <igvtee@gmail.com>
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*/
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#include "mtk_eth_soc.h"
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#include "ethtool.h"
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struct mtk_stat {
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char name[ETH_GSTRING_LEN];
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unsigned int idx;
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};
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#define MTK_HW_STAT(stat) { \
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.name = #stat, \
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.idx = offsetof(struct mtk_hw_stats, stat) / sizeof(u64) \
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}
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static const struct mtk_stat mtk_ethtool_hw_stats[] = {
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MTK_HW_STAT(tx_bytes),
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MTK_HW_STAT(tx_packets),
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MTK_HW_STAT(tx_skip),
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MTK_HW_STAT(tx_collisions),
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MTK_HW_STAT(rx_bytes),
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MTK_HW_STAT(rx_packets),
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MTK_HW_STAT(rx_overflow),
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MTK_HW_STAT(rx_fcs_errors),
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MTK_HW_STAT(rx_short_errors),
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MTK_HW_STAT(rx_long_errors),
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MTK_HW_STAT(rx_checksum_errors),
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MTK_HW_STAT(rx_flow_control_packets),
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};
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#define MTK_HW_STATS_LEN ARRAY_SIZE(mtk_ethtool_hw_stats)
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static int mtk_get_link_ksettings(struct net_device *dev,
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struct ethtool_link_ksettings *cmd)
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{
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struct mtk_mac *mac = netdev_priv(dev);
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int err;
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if (!mac->phy_dev)
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return -ENODEV;
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if (mac->phy_flags == MTK_PHY_FLAG_ATTACH) {
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err = phy_read_status(mac->phy_dev);
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if (err)
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return -ENODEV;
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}
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phy_ethtool_ksettings_get(mac->phy_dev, cmd);
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return 0;
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}
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static int mtk_set_link_ksettings(struct net_device *dev,
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const struct ethtool_link_ksettings *cmd)
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{
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struct mtk_mac *mac = netdev_priv(dev);
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if (!mac->phy_dev)
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return -ENODEV;
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if (cmd->base.phy_address != mac->phy_dev->mdio.addr) {
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if (mac->hw->phy->phy_node[cmd->base.phy_address]) {
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mac->phy_dev = mac->hw->phy->phy[cmd->base.phy_address];
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mac->phy_flags = MTK_PHY_FLAG_PORT;
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} else if (mac->hw->mii_bus) {
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mac->phy_dev = mdiobus_get_phy(mac->hw->mii_bus,
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cmd->base.phy_address);
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if (!mac->phy_dev)
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return -ENODEV;
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mac->phy_flags = MTK_PHY_FLAG_ATTACH;
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} else {
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return -ENODEV;
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}
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}
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return phy_ethtool_ksettings_set(mac->phy_dev, cmd);
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}
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static void mtk_get_drvinfo(struct net_device *dev,
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struct ethtool_drvinfo *info)
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{
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struct mtk_mac *mac = netdev_priv(dev);
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struct mtk_soc_data *soc = mac->hw->soc;
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strlcpy(info->driver, mac->hw->dev->driver->name, sizeof(info->driver));
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strlcpy(info->bus_info, dev_name(mac->hw->dev), sizeof(info->bus_info));
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if (soc->reg_table[MTK_REG_MTK_COUNTER_BASE])
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info->n_stats = MTK_HW_STATS_LEN;
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}
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static u32 mtk_get_msglevel(struct net_device *dev)
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{
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struct mtk_mac *mac = netdev_priv(dev);
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return mac->hw->msg_enable;
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}
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static void mtk_set_msglevel(struct net_device *dev, u32 value)
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{
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struct mtk_mac *mac = netdev_priv(dev);
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mac->hw->msg_enable = value;
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}
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static int mtk_nway_reset(struct net_device *dev)
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{
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struct mtk_mac *mac = netdev_priv(dev);
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if (!mac->phy_dev)
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return -EOPNOTSUPP;
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return genphy_restart_aneg(mac->phy_dev);
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}
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static u32 mtk_get_link(struct net_device *dev)
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{
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struct mtk_mac *mac = netdev_priv(dev);
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int err;
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if (!mac->phy_dev)
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goto out_get_link;
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if (mac->phy_flags == MTK_PHY_FLAG_ATTACH) {
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err = genphy_update_link(mac->phy_dev);
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if (err)
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goto out_get_link;
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}
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return mac->phy_dev->link;
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out_get_link:
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return ethtool_op_get_link(dev);
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}
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static int mtk_set_ringparam(struct net_device *dev,
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struct ethtool_ringparam *ring)
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{
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struct mtk_mac *mac = netdev_priv(dev);
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if ((ring->tx_pending < 2) ||
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(ring->rx_pending < 2) ||
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(ring->rx_pending > mac->hw->soc->dma_ring_size) ||
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(ring->tx_pending > mac->hw->soc->dma_ring_size))
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return -EINVAL;
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dev->netdev_ops->ndo_stop(dev);
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mac->hw->tx_ring.tx_ring_size = BIT(fls(ring->tx_pending) - 1);
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mac->hw->rx_ring[0].rx_ring_size = BIT(fls(ring->rx_pending) - 1);
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return dev->netdev_ops->ndo_open(dev);
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}
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static void mtk_get_ringparam(struct net_device *dev,
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struct ethtool_ringparam *ring)
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{
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struct mtk_mac *mac = netdev_priv(dev);
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ring->rx_max_pending = mac->hw->soc->dma_ring_size;
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ring->tx_max_pending = mac->hw->soc->dma_ring_size;
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ring->rx_pending = mac->hw->rx_ring[0].rx_ring_size;
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ring->tx_pending = mac->hw->tx_ring.tx_ring_size;
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}
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static void mtk_get_strings(struct net_device *dev, u32 stringset, u8 *data)
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{
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int i;
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switch (stringset) {
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case ETH_SS_STATS:
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for (i = 0; i < MTK_HW_STATS_LEN; i++) {
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memcpy(data, mtk_ethtool_hw_stats[i].name,
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ETH_GSTRING_LEN);
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data += 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 int mtk_get_sset_count(struct net_device *dev, int sset)
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{
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switch (sset) {
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case ETH_SS_STATS:
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return MTK_HW_STATS_LEN;
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default:
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return -EOPNOTSUPP;
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}
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}
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static void mtk_get_ethtool_stats(struct net_device *dev,
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struct ethtool_stats *stats, u64 *data)
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{
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struct mtk_mac *mac = netdev_priv(dev);
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struct mtk_hw_stats *hwstats = mac->hw_stats;
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unsigned int start;
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int i;
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if (netif_running(dev) && netif_device_present(dev)) {
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if (spin_trylock(&hwstats->stats_lock)) {
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mtk_stats_update_mac(mac);
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spin_unlock(&hwstats->stats_lock);
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}
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}
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do {
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start = u64_stats_fetch_begin_irq(&hwstats->syncp);
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for (i = 0; i < MTK_HW_STATS_LEN; i++)
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data[i] = ((u64 *)hwstats)[mtk_ethtool_hw_stats[i].idx];
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} while (u64_stats_fetch_retry_irq(&hwstats->syncp, start));
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}
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static struct ethtool_ops mtk_ethtool_ops = {
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.get_link_ksettings = mtk_get_link_ksettings,
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.set_link_ksettings = mtk_set_link_ksettings,
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.get_drvinfo = mtk_get_drvinfo,
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.get_msglevel = mtk_get_msglevel,
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.set_msglevel = mtk_set_msglevel,
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.nway_reset = mtk_nway_reset,
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.get_link = mtk_get_link,
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.set_ringparam = mtk_set_ringparam,
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.get_ringparam = mtk_get_ringparam,
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};
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void mtk_set_ethtool_ops(struct net_device *netdev)
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{
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struct mtk_mac *mac = netdev_priv(netdev);
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struct mtk_soc_data *soc = mac->hw->soc;
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if (soc->reg_table[MTK_REG_MTK_COUNTER_BASE]) {
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mtk_ethtool_ops.get_strings = mtk_get_strings;
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mtk_ethtool_ops.get_sset_count = mtk_get_sset_count;
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mtk_ethtool_ops.get_ethtool_stats = mtk_get_ethtool_stats;
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}
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netdev->ethtool_ops = &mtk_ethtool_ops;
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}
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