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	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 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				 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