1// SPDX-License-Identifier: GPL-2.0-or-later
  2/*
  3 * Network device driver for Cell Processor-Based Blade
  4 *
  5 * (C) Copyright IBM Corp. 2005
  6 *
  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 int
 37spider_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 void
 59spider_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	strlcpy(drvinfo->driver, spider_net_driver_name,
 67		sizeof(drvinfo->driver));
 68	strlcpy(drvinfo->version, VERSION, sizeof(drvinfo->version));
 69	strlcpy(drvinfo->fw_version, "no information",
 70		sizeof(drvinfo->fw_version));
 71	strlcpy(drvinfo->bus_info, pci_name(card->pdev),
 72		sizeof(drvinfo->bus_info));
 73}
 74
 75static void
 76spider_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 u32
 85spider_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 void
 93spider_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 int
102spider_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 void
112spider_net_ethtool_get_ringparam(struct net_device *netdev,
113				 struct ethtool_ringparam *ering)
114{
115	struct spider_net_card *card = netdev_priv(netdev);
116
117	ering->tx_max_pending = SPIDER_NET_TX_DESCRIPTORS_MAX;
118	ering->tx_pending = card->tx_chain.num_desc;
119	ering->rx_max_pending = SPIDER_NET_RX_DESCRIPTORS_MAX;
120	ering->rx_pending = card->rx_chain.num_desc;
121}
122
123static int spider_net_get_sset_count(struct net_device *netdev, int sset)
124{
125	switch (sset) {
126	case ETH_SS_STATS:
127		return ARRAY_SIZE(ethtool_stats_keys);
128	default:
129		return -EOPNOTSUPP;
130	}
131}
132
133static void spider_net_get_ethtool_stats(struct net_device *netdev,
134		struct ethtool_stats *stats, u64 *data)
135{
136	struct spider_net_card *card = netdev_priv(netdev);
137
138	data[0] = netdev->stats.tx_packets;
139	data[1] = netdev->stats.tx_bytes;
140	data[2] = netdev->stats.rx_packets;
141	data[3] = netdev->stats.rx_bytes;
142	data[4] = netdev->stats.tx_errors;
143	data[5] = netdev->stats.tx_dropped;
144	data[6] = netdev->stats.rx_dropped;
145	data[7] = card->spider_stats.rx_desc_error;
146	data[8] = card->spider_stats.tx_timeouts;
147	data[9] = card->spider_stats.alloc_rx_skb_error;
148	data[10] = card->spider_stats.rx_iommu_map_error;
149	data[11] = card->spider_stats.tx_iommu_map_error;
150	data[12] = card->spider_stats.rx_desc_unk_state;
151}
152
153static void spider_net_get_strings(struct net_device *netdev, u32 stringset,
154				   u8 *data)
155{
156	memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
157}
158
159const struct ethtool_ops spider_net_ethtool_ops = {
160	.get_drvinfo		= spider_net_ethtool_get_drvinfo,
161	.get_wol		= spider_net_ethtool_get_wol,
162	.get_msglevel		= spider_net_ethtool_get_msglevel,
163	.set_msglevel		= spider_net_ethtool_set_msglevel,
164	.get_link		= ethtool_op_get_link,
165	.nway_reset		= spider_net_ethtool_nway_reset,
166	.get_ringparam          = spider_net_ethtool_get_ringparam,
167	.get_strings		= spider_net_get_strings,
168	.get_sset_count		= spider_net_get_sset_count,
169	.get_ethtool_stats	= spider_net_get_ethtool_stats,
170	.get_link_ksettings	= spider_net_ethtool_get_link_ksettings,
171};
172