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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Network device driver for Cell Processor-Based Blade4 *5 * (C) Copyright IBM Corp. 20056 *7 * Authors : Utz Bacher <utz.bacher@de.ibm.com>8 * Jens Osterkamp <Jens.Osterkamp@de.ibm.com>9 */10 11#include <linux/netdevice.h>12#include <linux/ethtool.h>13#include <linux/pci.h>14 15#include "spider_net.h"16 17 18static struct {19 const char str[ETH_GSTRING_LEN];20} ethtool_stats_keys[] = {21 { "tx_packets" },22 { "tx_bytes" },23 { "rx_packets" },24 { "rx_bytes" },25 { "tx_errors" },26 { "tx_dropped" },27 { "rx_dropped" },28 { "rx_descriptor_error" },29 { "tx_timeouts" },30 { "alloc_rx_skb_error" },31 { "rx_iommu_map_error" },32 { "tx_iommu_map_error" },33 { "rx_desc_unk_state" },34};35 36static int37spider_net_ethtool_get_link_ksettings(struct net_device *netdev,38 struct ethtool_link_ksettings *cmd)39{40 struct spider_net_card *card;41 card = netdev_priv(netdev);42 43 ethtool_link_ksettings_zero_link_mode(cmd, supported);44 ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);45 ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);46 47 ethtool_link_ksettings_zero_link_mode(cmd, advertising);48 ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);49 ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE);50 51 cmd->base.port = PORT_FIBRE;52 cmd->base.speed = card->phy.speed;53 cmd->base.duplex = DUPLEX_FULL;54 55 return 0;56}57 58static void59spider_net_ethtool_get_drvinfo(struct net_device *netdev,60 struct ethtool_drvinfo *drvinfo)61{62 struct spider_net_card *card;63 card = netdev_priv(netdev);64 65 /* clear and fill out info */66 strscpy(drvinfo->driver, spider_net_driver_name,67 sizeof(drvinfo->driver));68 strscpy(drvinfo->version, VERSION, sizeof(drvinfo->version));69 strscpy(drvinfo->fw_version, "no information",70 sizeof(drvinfo->fw_version));71 strscpy(drvinfo->bus_info, pci_name(card->pdev),72 sizeof(drvinfo->bus_info));73}74 75static void76spider_net_ethtool_get_wol(struct net_device *netdev,77 struct ethtool_wolinfo *wolinfo)78{79 /* no support for wol */80 wolinfo->supported = 0;81 wolinfo->wolopts = 0;82}83 84static u3285spider_net_ethtool_get_msglevel(struct net_device *netdev)86{87 struct spider_net_card *card;88 card = netdev_priv(netdev);89 return card->msg_enable;90}91 92static void93spider_net_ethtool_set_msglevel(struct net_device *netdev,94 u32 level)95{96 struct spider_net_card *card;97 card = netdev_priv(netdev);98 card->msg_enable = level;99}100 101static int102spider_net_ethtool_nway_reset(struct net_device *netdev)103{104 if (netif_running(netdev)) {105 spider_net_stop(netdev);106 spider_net_open(netdev);107 }108 return 0;109}110 111static void112spider_net_ethtool_get_ringparam(struct net_device *netdev,113 struct ethtool_ringparam *ering,114 struct kernel_ethtool_ringparam *kernel_ering,115 struct netlink_ext_ack *extack)116{117 struct spider_net_card *card = netdev_priv(netdev);118 119 ering->tx_max_pending = SPIDER_NET_TX_DESCRIPTORS_MAX;120 ering->tx_pending = card->tx_chain.num_desc;121 ering->rx_max_pending = SPIDER_NET_RX_DESCRIPTORS_MAX;122 ering->rx_pending = card->rx_chain.num_desc;123}124 125static int spider_net_get_sset_count(struct net_device *netdev, int sset)126{127 switch (sset) {128 case ETH_SS_STATS:129 return ARRAY_SIZE(ethtool_stats_keys);130 default:131 return -EOPNOTSUPP;132 }133}134 135static void spider_net_get_ethtool_stats(struct net_device *netdev,136 struct ethtool_stats *stats, u64 *data)137{138 struct spider_net_card *card = netdev_priv(netdev);139 140 data[0] = netdev->stats.tx_packets;141 data[1] = netdev->stats.tx_bytes;142 data[2] = netdev->stats.rx_packets;143 data[3] = netdev->stats.rx_bytes;144 data[4] = netdev->stats.tx_errors;145 data[5] = netdev->stats.tx_dropped;146 data[6] = netdev->stats.rx_dropped;147 data[7] = card->spider_stats.rx_desc_error;148 data[8] = card->spider_stats.tx_timeouts;149 data[9] = card->spider_stats.alloc_rx_skb_error;150 data[10] = card->spider_stats.rx_iommu_map_error;151 data[11] = card->spider_stats.tx_iommu_map_error;152 data[12] = card->spider_stats.rx_desc_unk_state;153}154 155static void spider_net_get_strings(struct net_device *netdev, u32 stringset,156 u8 *data)157{158 memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));159}160 161const struct ethtool_ops spider_net_ethtool_ops = {162 .get_drvinfo = spider_net_ethtool_get_drvinfo,163 .get_wol = spider_net_ethtool_get_wol,164 .get_msglevel = spider_net_ethtool_get_msglevel,165 .set_msglevel = spider_net_ethtool_set_msglevel,166 .get_link = ethtool_op_get_link,167 .nway_reset = spider_net_ethtool_nway_reset,168 .get_ringparam = spider_net_ethtool_get_ringparam,169 .get_strings = spider_net_get_strings,170 .get_sset_count = spider_net_get_sset_count,171 .get_ethtool_stats = spider_net_get_ethtool_stats,172 .get_link_ksettings = spider_net_ethtool_get_link_ksettings,173};174 175