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
 31static 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
 49static int
 50spider_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
 67static void
 68spider_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	strlcpy(drvinfo->driver, spider_net_driver_name,
 76		sizeof(drvinfo->driver));
 77	strlcpy(drvinfo->version, VERSION, sizeof(drvinfo->version));
 78	strlcpy(drvinfo->fw_version, "no information",
 79		sizeof(drvinfo->fw_version));
 80	strlcpy(drvinfo->bus_info, pci_name(card->pdev),
 81		sizeof(drvinfo->bus_info));
 82}
 83
 84static void
 85spider_net_ethtool_get_wol(struct net_device *netdev,
 86			   struct ethtool_wolinfo *wolinfo)
 87{
 88	/* no support for wol */
 89	wolinfo->supported = 0;
 90	wolinfo->wolopts = 0;
 91}
 92
 93static u32
 94spider_net_ethtool_get_msglevel(struct net_device *netdev)
 95{
 96	struct spider_net_card *card;
 97	card = netdev_priv(netdev);
 98	return card->msg_enable;
 99}
100
101static void
102spider_net_ethtool_set_msglevel(struct net_device *netdev,
103				u32 level)
104{
105	struct spider_net_card *card;
106	card = netdev_priv(netdev);
107	card->msg_enable = level;
108}
109
110static int
111spider_net_ethtool_nway_reset(struct net_device *netdev)
112{
113	if (netif_running(netdev)) {
114		spider_net_stop(netdev);
115		spider_net_open(netdev);
116	}
117	return 0;
118}
119
120static void
121spider_net_ethtool_get_ringparam(struct net_device *netdev,
122				 struct ethtool_ringparam *ering)
123{
124	struct spider_net_card *card = netdev_priv(netdev);
125
126	ering->tx_max_pending = SPIDER_NET_TX_DESCRIPTORS_MAX;
127	ering->tx_pending = card->tx_chain.num_desc;
128	ering->rx_max_pending = SPIDER_NET_RX_DESCRIPTORS_MAX;
129	ering->rx_pending = card->rx_chain.num_desc;
130}
131
132static int spider_net_get_sset_count(struct net_device *netdev, int sset)
133{
134	switch (sset) {
135	case ETH_SS_STATS:
136		return ARRAY_SIZE(ethtool_stats_keys);
137	default:
138		return -EOPNOTSUPP;
139	}
140}
141
142static void spider_net_get_ethtool_stats(struct net_device *netdev,
143		struct ethtool_stats *stats, u64 *data)
144{
145	struct spider_net_card *card = netdev_priv(netdev);
146
147	data[0] = netdev->stats.tx_packets;
148	data[1] = netdev->stats.tx_bytes;
149	data[2] = netdev->stats.rx_packets;
150	data[3] = netdev->stats.rx_bytes;
151	data[4] = netdev->stats.tx_errors;
152	data[5] = netdev->stats.tx_dropped;
153	data[6] = netdev->stats.rx_dropped;
154	data[7] = card->spider_stats.rx_desc_error;
155	data[8] = card->spider_stats.tx_timeouts;
156	data[9] = card->spider_stats.alloc_rx_skb_error;
157	data[10] = card->spider_stats.rx_iommu_map_error;
158	data[11] = card->spider_stats.tx_iommu_map_error;
159	data[12] = card->spider_stats.rx_desc_unk_state;
160}
161
162static void spider_net_get_strings(struct net_device *netdev, u32 stringset,
163				   u8 *data)
164{
165	memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
166}
167
168const struct ethtool_ops spider_net_ethtool_ops = {
169	.get_settings		= spider_net_ethtool_get_settings,
170	.get_drvinfo		= spider_net_ethtool_get_drvinfo,
171	.get_wol		= spider_net_ethtool_get_wol,
172	.get_msglevel		= spider_net_ethtool_get_msglevel,
173	.set_msglevel		= spider_net_ethtool_set_msglevel,
174	.get_link		= ethtool_op_get_link,
175	.nway_reset		= spider_net_ethtool_nway_reset,
176	.get_ringparam          = spider_net_ethtool_get_ringparam,
177	.get_strings		= spider_net_get_strings,
178	.get_sset_count		= spider_net_get_sset_count,
179	.get_ethtool_stats	= spider_net_get_ethtool_stats,
180};
181