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_settings(struct net_device *netdev,
51 			       struct ethtool_cmd *cmd)
52 {
53 	struct spider_net_card *card;
54 	card = netdev_priv(netdev);
55 
56 	cmd->supported   = (SUPPORTED_1000baseT_Full |
57 			     SUPPORTED_FIBRE);
58 	cmd->advertising = (ADVERTISED_1000baseT_Full |
59 			     ADVERTISED_FIBRE);
60 	cmd->port = PORT_FIBRE;
61 	ethtool_cmd_speed_set(cmd, card->phy.speed);
62 	cmd->duplex = DUPLEX_FULL;
63 
64 	return 0;
65 }
66 
67 static void
68 spider_net_ethtool_get_drvinfo(struct net_device *netdev,
69 			       struct ethtool_drvinfo *drvinfo)
70 {
71 	struct spider_net_card *card;
72 	card = netdev_priv(netdev);
73 
74 	/* clear and fill out info */
75 	memset(drvinfo, 0, sizeof(struct ethtool_drvinfo));
76 	strncpy(drvinfo->driver, spider_net_driver_name, 32);
77 	strncpy(drvinfo->version, VERSION, 32);
78 	strcpy(drvinfo->fw_version, "no information");
79 	strncpy(drvinfo->bus_info, pci_name(card->pdev), 32);
80 }
81 
82 static void
83 spider_net_ethtool_get_wol(struct net_device *netdev,
84 			   struct ethtool_wolinfo *wolinfo)
85 {
86 	/* no support for wol */
87 	wolinfo->supported = 0;
88 	wolinfo->wolopts = 0;
89 }
90 
91 static u32
92 spider_net_ethtool_get_msglevel(struct net_device *netdev)
93 {
94 	struct spider_net_card *card;
95 	card = netdev_priv(netdev);
96 	return card->msg_enable;
97 }
98 
99 static void
100 spider_net_ethtool_set_msglevel(struct net_device *netdev,
101 				u32 level)
102 {
103 	struct spider_net_card *card;
104 	card = netdev_priv(netdev);
105 	card->msg_enable = level;
106 }
107 
108 static int
109 spider_net_ethtool_nway_reset(struct net_device *netdev)
110 {
111 	if (netif_running(netdev)) {
112 		spider_net_stop(netdev);
113 		spider_net_open(netdev);
114 	}
115 	return 0;
116 }
117 
118 static void
119 spider_net_ethtool_get_ringparam(struct net_device *netdev,
120 				 struct ethtool_ringparam *ering)
121 {
122 	struct spider_net_card *card = netdev_priv(netdev);
123 
124 	ering->tx_max_pending = SPIDER_NET_TX_DESCRIPTORS_MAX;
125 	ering->tx_pending = card->tx_chain.num_desc;
126 	ering->rx_max_pending = SPIDER_NET_RX_DESCRIPTORS_MAX;
127 	ering->rx_pending = card->rx_chain.num_desc;
128 }
129 
130 static int spider_net_get_sset_count(struct net_device *netdev, int sset)
131 {
132 	switch (sset) {
133 	case ETH_SS_STATS:
134 		return ARRAY_SIZE(ethtool_stats_keys);
135 	default:
136 		return -EOPNOTSUPP;
137 	}
138 }
139 
140 static void spider_net_get_ethtool_stats(struct net_device *netdev,
141 		struct ethtool_stats *stats, u64 *data)
142 {
143 	struct spider_net_card *card = netdev_priv(netdev);
144 
145 	data[0] = netdev->stats.tx_packets;
146 	data[1] = netdev->stats.tx_bytes;
147 	data[2] = netdev->stats.rx_packets;
148 	data[3] = netdev->stats.rx_bytes;
149 	data[4] = netdev->stats.tx_errors;
150 	data[5] = netdev->stats.tx_dropped;
151 	data[6] = netdev->stats.rx_dropped;
152 	data[7] = card->spider_stats.rx_desc_error;
153 	data[8] = card->spider_stats.tx_timeouts;
154 	data[9] = card->spider_stats.alloc_rx_skb_error;
155 	data[10] = card->spider_stats.rx_iommu_map_error;
156 	data[11] = card->spider_stats.tx_iommu_map_error;
157 	data[12] = card->spider_stats.rx_desc_unk_state;
158 }
159 
160 static void spider_net_get_strings(struct net_device *netdev, u32 stringset,
161 				   u8 *data)
162 {
163 	memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
164 }
165 
166 const struct ethtool_ops spider_net_ethtool_ops = {
167 	.get_settings		= spider_net_ethtool_get_settings,
168 	.get_drvinfo		= spider_net_ethtool_get_drvinfo,
169 	.get_wol		= spider_net_ethtool_get_wol,
170 	.get_msglevel		= spider_net_ethtool_get_msglevel,
171 	.set_msglevel		= spider_net_ethtool_set_msglevel,
172 	.get_link		= ethtool_op_get_link,
173 	.nway_reset		= spider_net_ethtool_nway_reset,
174 	.get_ringparam          = spider_net_ethtool_get_ringparam,
175 	.get_strings		= spider_net_get_strings,
176 	.get_sset_count		= spider_net_get_sset_count,
177 	.get_ethtool_stats	= spider_net_get_ethtool_stats,
178 };
179 
180