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, see <http://www.gnu.org/licenses/>.
17 */
18
19
20#include <linux/netdevice.h>
21#include <linux/ethtool.h>
22#include <linux/pci.h>
23#include <linux/inet_lro.h>
24
25#include <asm/pasemi_dma.h>
26#include "pasemi_mac.h"
27
28static struct {
29	const char str[ETH_GSTRING_LEN];
30} ethtool_stats_keys[] = {
31	{ "rx-drops" },
32	{ "rx-bytes" },
33	{ "rx-packets" },
34	{ "rx-broadcast-packets" },
35	{ "rx-multicast-packets" },
36	{ "rx-crc-errors" },
37	{ "rx-undersize-errors" },
38	{ "rx-oversize-errors" },
39	{ "rx-short-fragment-errors" },
40	{ "rx-jabber-errors" },
41	{ "rx-64-byte-packets" },
42	{ "rx-65-127-byte-packets" },
43	{ "rx-128-255-byte-packets" },
44	{ "rx-256-511-byte-packets" },
45	{ "rx-512-1023-byte-packets" },
46	{ "rx-1024-1518-byte-packets" },
47	{ "rx-pause-frames" },
48	{ "tx-bytes" },
49	{ "tx-packets" },
50	{ "tx-broadcast-packets" },
51	{ "tx-multicast-packets" },
52	{ "tx-collisions" },
53	{ "tx-late-collisions" },
54	{ "tx-excessive-collisions" },
55	{ "tx-crc-errors" },
56	{ "tx-undersize-errors" },
57	{ "tx-oversize-errors" },
58	{ "tx-64-byte-packets" },
59	{ "tx-65-127-byte-packets" },
60	{ "tx-128-255-byte-packets" },
61	{ "tx-256-511-byte-packets" },
62	{ "tx-512-1023-byte-packets" },
63	{ "tx-1024-1518-byte-packets" },
64};
65
66static int
67pasemi_mac_ethtool_get_settings(struct net_device *netdev,
68			       struct ethtool_cmd *cmd)
69{
70	struct pasemi_mac *mac = netdev_priv(netdev);
71	struct phy_device *phydev = mac->phydev;
72
73	if (!phydev)
74		return -EOPNOTSUPP;
75
76	return phy_ethtool_gset(phydev, cmd);
77}
78
79static int
80pasemi_mac_ethtool_set_settings(struct net_device *netdev,
81			       struct ethtool_cmd *cmd)
82{
83	struct pasemi_mac *mac = netdev_priv(netdev);
84	struct phy_device *phydev = mac->phydev;
85
86	if (!phydev)
87		return -EOPNOTSUPP;
88
89	return phy_ethtool_sset(phydev, cmd);
90}
91
92static u32
93pasemi_mac_ethtool_get_msglevel(struct net_device *netdev)
94{
95	struct pasemi_mac *mac = netdev_priv(netdev);
96	return mac->msg_enable;
97}
98
99static void
100pasemi_mac_ethtool_set_msglevel(struct net_device *netdev,
101				u32 level)
102{
103	struct pasemi_mac *mac = netdev_priv(netdev);
104	mac->msg_enable = level;
105}
106
107
108static void
109pasemi_mac_ethtool_get_ringparam(struct net_device *netdev,
110				 struct ethtool_ringparam *ering)
111{
112	struct pasemi_mac *mac = netdev_priv(netdev);
113
114	ering->tx_max_pending = TX_RING_SIZE/2;
115	ering->tx_pending = RING_USED(mac->tx)/2;
116	ering->rx_max_pending = RX_RING_SIZE/4;
117	ering->rx_pending = RING_USED(mac->rx)/4;
118}
119
120static int pasemi_mac_get_sset_count(struct net_device *netdev, int sset)
121{
122	switch (sset) {
123	case ETH_SS_STATS:
124		return ARRAY_SIZE(ethtool_stats_keys);
125	default:
126		return -EOPNOTSUPP;
127	}
128}
129
130static void pasemi_mac_get_ethtool_stats(struct net_device *netdev,
131		struct ethtool_stats *stats, u64 *data)
132{
133	struct pasemi_mac *mac = netdev_priv(netdev);
134	int i;
135
136	data[0] = pasemi_read_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if))
137			>> PAS_DMA_RXINT_RCMDSTA_DROPS_S;
138	for (i = 0; i < 32; i++)
139		data[1+i] = pasemi_read_mac_reg(mac->dma_if, PAS_MAC_RMON(i));
140}
141
142static void pasemi_mac_get_strings(struct net_device *netdev, u32 stringset,
143				   u8 *data)
144{
145	memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
146}
147
148const struct ethtool_ops pasemi_mac_ethtool_ops = {
149	.get_settings		= pasemi_mac_ethtool_get_settings,
150	.set_settings		= pasemi_mac_ethtool_set_settings,
151	.get_msglevel		= pasemi_mac_ethtool_get_msglevel,
152	.set_msglevel		= pasemi_mac_ethtool_set_msglevel,
153	.get_link		= ethtool_op_get_link,
154	.get_ringparam          = pasemi_mac_ethtool_get_ringparam,
155	.get_strings		= pasemi_mac_get_strings,
156	.get_sset_count		= pasemi_mac_get_sset_count,
157	.get_ethtool_stats	= pasemi_mac_get_ethtool_stats,
158};
159
160