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_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
 71static void
 72spider_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
 88static void
 89spider_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
 97static u32
 98spider_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
105static void
106spider_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
114static int
115spider_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
124static void
125spider_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
136static 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
146static 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
166static 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
172const 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