1/*
  2 * Copyright (C) 2006-2008 PA Semi, Inc
  3 *
  4 * Ethtool hooks for the PA Semi PWRficient onchip 1G/10G Ethernet MACs
  5 *
  6 * This program is free software; you can redistribute it and/or modify
  7 * it under the terms of the GNU General Public License version 2 as
  8 * published by the Free Software Foundation.
  9 *
 10 * This program is distributed in the hope that it will be useful,
 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 13 * GNU General Public License for more details.
 14 *
 15 * You should have received a copy of the GNU General Public License
 16 * along with this program; if not, write to the Free Software
 17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
 18 */
 19
 20
 21#include <linux/netdevice.h>
 22#include <linux/ethtool.h>
 23#include <linux/pci.h>
 24#include <linux/inet_lro.h>
 25
 26#include <asm/pasemi_dma.h>
 27#include "pasemi_mac.h"
 28
 29static struct {
 30	const char str[ETH_GSTRING_LEN];
 31} ethtool_stats_keys[] = {
 32	{ "rx-drops" },
 33	{ "rx-bytes" },
 34	{ "rx-packets" },
 35	{ "rx-broadcast-packets" },
 36	{ "rx-multicast-packets" },
 37	{ "rx-crc-errors" },
 38	{ "rx-undersize-errors" },
 39	{ "rx-oversize-errors" },
 40	{ "rx-short-fragment-errors" },
 41	{ "rx-jabber-errors" },
 42	{ "rx-64-byte-packets" },
 43	{ "rx-65-127-byte-packets" },
 44	{ "rx-128-255-byte-packets" },
 45	{ "rx-256-511-byte-packets" },
 46	{ "rx-512-1023-byte-packets" },
 47	{ "rx-1024-1518-byte-packets" },
 48	{ "rx-pause-frames" },
 49	{ "tx-bytes" },
 50	{ "tx-packets" },
 51	{ "tx-broadcast-packets" },
 52	{ "tx-multicast-packets" },
 53	{ "tx-collisions" },
 54	{ "tx-late-collisions" },
 55	{ "tx-excessive-collisions" },
 56	{ "tx-crc-errors" },
 57	{ "tx-undersize-errors" },
 58	{ "tx-oversize-errors" },
 59	{ "tx-64-byte-packets" },
 60	{ "tx-65-127-byte-packets" },
 61	{ "tx-128-255-byte-packets" },
 62	{ "tx-256-511-byte-packets" },
 63	{ "tx-512-1023-byte-packets" },
 64	{ "tx-1024-1518-byte-packets" },
 65};
 66
 67static int
 68pasemi_mac_ethtool_get_settings(struct net_device *netdev,
 69			       struct ethtool_cmd *cmd)
 70{
 71	struct pasemi_mac *mac = netdev_priv(netdev);
 72	struct phy_device *phydev = mac->phydev;
 73
 74	if (!phydev)
 75		return -EOPNOTSUPP;
 76
 77	return phy_ethtool_gset(phydev, cmd);
 78}
 79
 80static int
 81pasemi_mac_ethtool_set_settings(struct net_device *netdev,
 82			       struct ethtool_cmd *cmd)
 83{
 84	struct pasemi_mac *mac = netdev_priv(netdev);
 85	struct phy_device *phydev = mac->phydev;
 86
 87	if (!phydev)
 88		return -EOPNOTSUPP;
 89
 90	return phy_ethtool_sset(phydev, cmd);
 91}
 92
 93static u32
 94pasemi_mac_ethtool_get_msglevel(struct net_device *netdev)
 95{
 96	struct pasemi_mac *mac = netdev_priv(netdev);
 97	return mac->msg_enable;
 98}
 99
100static void
101pasemi_mac_ethtool_set_msglevel(struct net_device *netdev,
102				u32 level)
103{
104	struct pasemi_mac *mac = netdev_priv(netdev);
105	mac->msg_enable = level;
106}
107
108
109static void
110pasemi_mac_ethtool_get_ringparam(struct net_device *netdev,
111				 struct ethtool_ringparam *ering)
112{
113	struct pasemi_mac *mac = netdev_priv(netdev);
114
115	ering->tx_max_pending = TX_RING_SIZE/2;
116	ering->tx_pending = RING_USED(mac->tx)/2;
117	ering->rx_max_pending = RX_RING_SIZE/4;
118	ering->rx_pending = RING_USED(mac->rx)/4;
119}
120
121static int pasemi_mac_get_sset_count(struct net_device *netdev, int sset)
122{
123	switch (sset) {
124	case ETH_SS_STATS:
125		return ARRAY_SIZE(ethtool_stats_keys);
126	default:
127		return -EOPNOTSUPP;
128	}
129}
130
131static void pasemi_mac_get_ethtool_stats(struct net_device *netdev,
132		struct ethtool_stats *stats, u64 *data)
133{
134	struct pasemi_mac *mac = netdev_priv(netdev);
135	int i;
136
137	data[0] = pasemi_read_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if))
138			>> PAS_DMA_RXINT_RCMDSTA_DROPS_S;
139	for (i = 0; i < 32; i++)
140		data[1+i] = pasemi_read_mac_reg(mac->dma_if, PAS_MAC_RMON(i));
141}
142
143static void pasemi_mac_get_strings(struct net_device *netdev, u32 stringset,
144				   u8 *data)
145{
146	memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
147}
148
149const struct ethtool_ops pasemi_mac_ethtool_ops = {
150	.get_settings		= pasemi_mac_ethtool_get_settings,
151	.set_settings		= pasemi_mac_ethtool_set_settings,
152	.get_msglevel		= pasemi_mac_ethtool_get_msglevel,
153	.set_msglevel		= pasemi_mac_ethtool_set_msglevel,
154	.get_link		= ethtool_op_get_link,
155	.get_ringparam          = pasemi_mac_ethtool_get_ringparam,
156	.get_strings		= pasemi_mac_get_strings,
157	.get_sset_count		= pasemi_mac_get_sset_count,
158	.get_ethtool_stats	= pasemi_mac_get_ethtool_stats,
159};
160