1 /*
2  * Network device driver for Cell Processor-Based Blade
3  *
4  * (C) Copyright IBM Corp. 2005
5  *
6  * Authors : Utz Bacher <utz.bacher@de.ibm.com>
7  *           Jens Osterkamp <Jens.Osterkamp@de.ibm.com>
8  *
9  * This program is free software; you can redistribute it and/or modify
10  * it under the terms of the GNU General Public License as published by
11  * the Free Software Foundation; either version 2, or (at your option)
12  * any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  * GNU General Public License for more details.
18  *
19  * You should have received a copy of the GNU General Public License
20  * along with this program; if not, write to the Free Software
21  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22  */
23 
24 #include <linux/netdevice.h>
25 #include <linux/ethtool.h>
26 #include <linux/pci.h>
27 
28 #include "spider_net.h"
29 
30 
31 static struct {
32 	const char str[ETH_GSTRING_LEN];
33 } ethtool_stats_keys[] = {
34 	{ "tx_packets" },
35 	{ "tx_bytes" },
36 	{ "rx_packets" },
37 	{ "rx_bytes" },
38 	{ "tx_errors" },
39 	{ "tx_dropped" },
40 	{ "rx_dropped" },
41 	{ "rx_descriptor_error" },
42 	{ "tx_timeouts" },
43 	{ "alloc_rx_skb_error" },
44 	{ "rx_iommu_map_error" },
45 	{ "tx_iommu_map_error" },
46 	{ "rx_desc_unk_state" },
47 };
48 
49 static int
50 spider_net_ethtool_get_link_ksettings(struct net_device *netdev,
51 				      struct ethtool_link_ksettings *cmd)
52 {
53 	struct spider_net_card *card;
54 	card = netdev_priv(netdev);
55 
56 	ethtool_link_ksettings_zero_link_mode(cmd, supported);
57 	ethtool_link_ksettings_add_link_mode(cmd, supported, 1000baseT_Full);
58 	ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE);
59 
60 	ethtool_link_ksettings_zero_link_mode(cmd, advertising);
61 	ethtool_link_ksettings_add_link_mode(cmd, advertising, 1000baseT_Full);
62 	ethtool_link_ksettings_add_link_mode(cmd, advertising, FIBRE);
63 
64 	cmd->base.port = PORT_FIBRE;
65 	cmd->base.speed = card->phy.speed;
66 	cmd->base.duplex = DUPLEX_FULL;
67 
68 	return 0;
69 }
70 
71 static void
72 spider_net_ethtool_get_drvinfo(struct net_device *netdev,
73 			       struct ethtool_drvinfo *drvinfo)
74 {
75 	struct spider_net_card *card;
76 	card = netdev_priv(netdev);
77 
78 	/* clear and fill out info */
79 	strlcpy(drvinfo->driver, spider_net_driver_name,
80 		sizeof(drvinfo->driver));
81 	strlcpy(drvinfo->version, VERSION, sizeof(drvinfo->version));
82 	strlcpy(drvinfo->fw_version, "no information",
83 		sizeof(drvinfo->fw_version));
84 	strlcpy(drvinfo->bus_info, pci_name(card->pdev),
85 		sizeof(drvinfo->bus_info));
86 }
87 
88 static void
89 spider_net_ethtool_get_wol(struct net_device *netdev,
90 			   struct ethtool_wolinfo *wolinfo)
91 {
92 	/* no support for wol */
93 	wolinfo->supported = 0;
94 	wolinfo->wolopts = 0;
95 }
96 
97 static u32
98 spider_net_ethtool_get_msglevel(struct net_device *netdev)
99 {
100 	struct spider_net_card *card;
101 	card = netdev_priv(netdev);
102 	return card->msg_enable;
103 }
104 
105 static void
106 spider_net_ethtool_set_msglevel(struct net_device *netdev,
107 				u32 level)
108 {
109 	struct spider_net_card *card;
110 	card = netdev_priv(netdev);
111 	card->msg_enable = level;
112 }
113 
114 static int
115 spider_net_ethtool_nway_reset(struct net_device *netdev)
116 {
117 	if (netif_running(netdev)) {
118 		spider_net_stop(netdev);
119 		spider_net_open(netdev);
120 	}
121 	return 0;
122 }
123 
124 static void
125 spider_net_ethtool_get_ringparam(struct net_device *netdev,
126 				 struct ethtool_ringparam *ering)
127 {
128 	struct spider_net_card *card = netdev_priv(netdev);
129 
130 	ering->tx_max_pending = SPIDER_NET_TX_DESCRIPTORS_MAX;
131 	ering->tx_pending = card->tx_chain.num_desc;
132 	ering->rx_max_pending = SPIDER_NET_RX_DESCRIPTORS_MAX;
133 	ering->rx_pending = card->rx_chain.num_desc;
134 }
135 
136 static int spider_net_get_sset_count(struct net_device *netdev, int sset)
137 {
138 	switch (sset) {
139 	case ETH_SS_STATS:
140 		return ARRAY_SIZE(ethtool_stats_keys);
141 	default:
142 		return -EOPNOTSUPP;
143 	}
144 }
145 
146 static void spider_net_get_ethtool_stats(struct net_device *netdev,
147 		struct ethtool_stats *stats, u64 *data)
148 {
149 	struct spider_net_card *card = netdev_priv(netdev);
150 
151 	data[0] = netdev->stats.tx_packets;
152 	data[1] = netdev->stats.tx_bytes;
153 	data[2] = netdev->stats.rx_packets;
154 	data[3] = netdev->stats.rx_bytes;
155 	data[4] = netdev->stats.tx_errors;
156 	data[5] = netdev->stats.tx_dropped;
157 	data[6] = netdev->stats.rx_dropped;
158 	data[7] = card->spider_stats.rx_desc_error;
159 	data[8] = card->spider_stats.tx_timeouts;
160 	data[9] = card->spider_stats.alloc_rx_skb_error;
161 	data[10] = card->spider_stats.rx_iommu_map_error;
162 	data[11] = card->spider_stats.tx_iommu_map_error;
163 	data[12] = card->spider_stats.rx_desc_unk_state;
164 }
165 
166 static void spider_net_get_strings(struct net_device *netdev, u32 stringset,
167 				   u8 *data)
168 {
169 	memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
170 }
171 
172 const struct ethtool_ops spider_net_ethtool_ops = {
173 	.get_drvinfo		= spider_net_ethtool_get_drvinfo,
174 	.get_wol		= spider_net_ethtool_get_wol,
175 	.get_msglevel		= spider_net_ethtool_get_msglevel,
176 	.set_msglevel		= spider_net_ethtool_set_msglevel,
177 	.get_link		= ethtool_op_get_link,
178 	.nway_reset		= spider_net_ethtool_nway_reset,
179 	.get_ringparam          = spider_net_ethtool_get_ringparam,
180 	.get_strings		= spider_net_get_strings,
181 	.get_sset_count		= spider_net_get_sset_count,
182 	.get_ethtool_stats	= spider_net_get_ethtool_stats,
183 	.get_link_ksettings	= spider_net_ethtool_get_link_ksettings,
184 };
185 
186