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
18 static 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
36 static int
spider_net_ethtool_get_link_ksettings(struct net_device * netdev,struct ethtool_link_ksettings * cmd)37 spider_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
58 static void
spider_net_ethtool_get_drvinfo(struct net_device * netdev,struct ethtool_drvinfo * drvinfo)59 spider_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
75 static void
spider_net_ethtool_get_wol(struct net_device * netdev,struct ethtool_wolinfo * wolinfo)76 spider_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
84 static u32
spider_net_ethtool_get_msglevel(struct net_device * netdev)85 spider_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
92 static void
spider_net_ethtool_set_msglevel(struct net_device * netdev,u32 level)93 spider_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
101 static int
spider_net_ethtool_nway_reset(struct net_device * netdev)102 spider_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
111 static void
spider_net_ethtool_get_ringparam(struct net_device * netdev,struct ethtool_ringparam * ering)112 spider_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
spider_net_get_sset_count(struct net_device * netdev,int sset)123 static 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
spider_net_get_ethtool_stats(struct net_device * netdev,struct ethtool_stats * stats,u64 * data)133 static 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
spider_net_get_strings(struct net_device * netdev,u32 stringset,u8 * data)153 static 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
159 const 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
173