spider_net_ethtool.c

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/*
 * Network device driver for Cell Processor-Based Blade
 *
 * (C) Copyright IBM Corp. 2005
 *
 * Authors : Utz Bacher <[email protected]>
 *           Jens Osterkamp <[email protected]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that 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, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/pci.h>

#include "spider_net.h"


static struct {
    const char str[ETH_GSTRING_LEN];
} ethtool_stats_keys[] = {
    { "tx_packets" },
    { "tx_bytes" },
    { "rx_packets" },
    { "rx_bytes" },
    { "tx_errors" },
    { "tx_dropped" },
    { "rx_dropped" },
    { "rx_descriptor_error" },
    { "tx_timeouts" },
    { "alloc_rx_skb_error" },
    { "rx_iommu_map_error" },
    { "tx_iommu_map_error" },
    { "rx_desc_unk_state" },
};

static int
spider_net_ethtool_get_settings(struct net_device *netdev,
                   struct ethtool_cmd *cmd)
{
    struct spider_net_card *card;
    card = netdev_priv(netdev);

    cmd->supported   = (SUPPORTED_1000baseT_Full |
                 SUPPORTED_FIBRE);
    cmd->advertising = (ADVERTISED_1000baseT_Full |
                 ADVERTISED_FIBRE);
    cmd->port = PORT_FIBRE;
    ethtool_cmd_speed_set(cmd, card->phy.speed);
    cmd->duplex = DUPLEX_FULL;

    return 0;
}

static void
spider_net_ethtool_get_drvinfo(struct net_device *netdev,
                   struct ethtool_drvinfo *drvinfo)
{
    struct spider_net_card *card;
    card = netdev_priv(netdev);

    /* clear and fill out info */
    memset(drvinfo, 0, sizeof(struct ethtool_drvinfo));
    strncpy(drvinfo->driver, spider_net_driver_name, 32);
    strncpy(drvinfo->version, VERSION, 32);
    strcpy(drvinfo->fw_version, "no information");
    strncpy(drvinfo->bus_info, pci_name(card->pdev), 32);
}

static void
spider_net_ethtool_get_wol(struct net_device *netdev,
               struct ethtool_wolinfo *wolinfo)
{
    /* no support for wol */
    wolinfo->supported = 0;
    wolinfo->wolopts = 0;
}

static u32
spider_net_ethtool_get_msglevel(struct net_device *netdev)
{
    struct spider_net_card *card;
    card = netdev_priv(netdev);
    return card->msg_enable;
}

static void
spider_net_ethtool_set_msglevel(struct net_device *netdev,
                u32 level)
{
    struct spider_net_card *card;
    card = netdev_priv(netdev);
    card->msg_enable = level;
}

static int
spider_net_ethtool_nway_reset(struct net_device *netdev)
{
    if (netif_running(netdev)) {
        spider_net_stop(netdev);
        spider_net_open(netdev);
    }
    return 0;
}

static void
spider_net_ethtool_get_ringparam(struct net_device *netdev,
                 struct ethtool_ringparam *ering)
{
    struct spider_net_card *card = netdev_priv(netdev);

    ering->tx_max_pending = SPIDER_NET_TX_DESCRIPTORS_MAX;
    ering->tx_pending = card->tx_chain.num_desc;
    ering->rx_max_pending = SPIDER_NET_RX_DESCRIPTORS_MAX;
    ering->rx_pending = card->rx_chain.num_desc;
}

static int spider_net_get_sset_count(struct net_device *netdev, int sset)
{
    switch (sset) {
    case ETH_SS_STATS:
        return ARRAY_SIZE(ethtool_stats_keys);
    default:
        return -EOPNOTSUPP;
    }
}

static void spider_net_get_ethtool_stats(struct net_device *netdev,
        struct ethtool_stats *stats, u64 *data)
{
    struct spider_net_card *card = netdev_priv(netdev);

    data[0] = netdev->stats.tx_packets;
    data[1] = netdev->stats.tx_bytes;
    data[2] = netdev->stats.rx_packets;
    data[3] = netdev->stats.rx_bytes;
    data[4] = netdev->stats.tx_errors;
    data[5] = netdev->stats.tx_dropped;
    data[6] = netdev->stats.rx_dropped;
    data[7] = card->spider_stats.rx_desc_error;
    data[8] = card->spider_stats.tx_timeouts;
    data[9] = card->spider_stats.alloc_rx_skb_error;
    data[10] = card->spider_stats.rx_iommu_map_error;
    data[11] = card->spider_stats.tx_iommu_map_error;
    data[12] = card->spider_stats.rx_desc_unk_state;
}

static void spider_net_get_strings(struct net_device *netdev, u32 stringset,
                   u8 *data)
{
    memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
}

const struct ethtool_ops spider_net_ethtool_ops = {
    .get_settings       = spider_net_ethtool_get_settings,
    .get_drvinfo        = spider_net_ethtool_get_drvinfo,
    .get_wol        = spider_net_ethtool_get_wol,
    .get_msglevel       = spider_net_ethtool_get_msglevel,
    .set_msglevel       = spider_net_ethtool_set_msglevel,
    .get_link       = ethtool_op_get_link,
    .nway_reset     = spider_net_ethtool_nway_reset,
    .get_ringparam          = spider_net_ethtool_get_ringparam,
    .get_strings        = spider_net_get_strings,
    .get_sset_count     = spider_net_get_sset_count,
    .get_ethtool_stats  = spider_net_get_ethtool_stats,
};