summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/altera/altera_tse_ethtool.c
blob: 81313c85833eb6a30f0d6ffa19a5797c22d0376c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
// SPDX-License-Identifier: GPL-2.0-only
/* Ethtool support for Altera Triple-Speed Ethernet MAC driver
 * Copyright (C) 2008-2014 Altera Corporation. All rights reserved
 *
 * Contributors:
 *   Dalon Westergreen
 *   Thomas Chou
 *   Ian Abbott
 *   Yuriy Kozlov
 *   Tobias Klauser
 *   Andriy Smolskyy
 *   Roman Bulgakov
 *   Dmytro Mytarchuk
 *
 * Original driver contributed by SLS.
 * Major updates contributed by GlobalLogic
 */

#include <linux/ethtool.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/phy.h>

#include "altera_tse.h"

#define TSE_STATS_LEN	31
#define TSE_NUM_REGS	128

static char const stat_gstrings[][ETH_GSTRING_LEN] = {
	"tx_packets",
	"rx_packets",
	"rx_crc_errors",
	"rx_align_errors",
	"tx_bytes",
	"rx_bytes",
	"tx_pause",
	"rx_pause",
	"rx_errors",
	"tx_errors",
	"rx_unicast",
	"rx_multicast",
	"rx_broadcast",
	"tx_discards",
	"tx_unicast",
	"tx_multicast",
	"tx_broadcast",
	"ether_drops",
	"rx_total_bytes",
	"rx_total_packets",
	"rx_undersize",
	"rx_oversize",
	"rx_64_bytes",
	"rx_65_127_bytes",
	"rx_128_255_bytes",
	"rx_256_511_bytes",
	"rx_512_1023_bytes",
	"rx_1024_1518_bytes",
	"rx_gte_1519_bytes",
	"rx_jabbers",
	"rx_runts",
};

static void tse_get_drvinfo(struct net_device *dev,
			    struct ethtool_drvinfo *info)
{
	struct altera_tse_private *priv = netdev_priv(dev);
	u32 rev = ioread32(&priv->mac_dev->megacore_revision);

	strcpy(info->driver, "altera_tse");
	snprintf(info->fw_version, ETHTOOL_FWVERS_LEN, "v%d.%d",
		 rev & 0xFFFF, (rev & 0xFFFF0000) >> 16);
	sprintf(info->bus_info, "platform");
}

/* Fill in a buffer with the strings which correspond to the
 * stats
 */
static void tse_gstrings(struct net_device *dev, u32 stringset, u8 *buf)
{
	memcpy(buf, stat_gstrings, TSE_STATS_LEN * ETH_GSTRING_LEN);
}

static void tse_fill_stats(struct net_device *dev, struct ethtool_stats *dummy,
			   u64 *buf)
{
	struct altera_tse_private *priv = netdev_priv(dev);
	u64 ext;

	buf[0] = csrrd32(priv->mac_dev,
			 tse_csroffs(frames_transmitted_ok));
	buf[1] = csrrd32(priv->mac_dev,
			 tse_csroffs(frames_received_ok));
	buf[2] = csrrd32(priv->mac_dev,
			 tse_csroffs(frames_check_sequence_errors));
	buf[3] = csrrd32(priv->mac_dev,
			 tse_csroffs(alignment_errors));

	/* Extended aOctetsTransmittedOK counter */
	ext = (u64) csrrd32(priv->mac_dev,
			    tse_csroffs(msb_octets_transmitted_ok)) << 32;

	ext |= csrrd32(priv->mac_dev,
		       tse_csroffs(octets_transmitted_ok));
	buf[4] = ext;

	/* Extended aOctetsReceivedOK counter */
	ext = (u64) csrrd32(priv->mac_dev,
			    tse_csroffs(msb_octets_received_ok)) << 32;

	ext |= csrrd32(priv->mac_dev,
		       tse_csroffs(octets_received_ok));
	buf[5] = ext;

	buf[6] = csrrd32(priv->mac_dev,
			 tse_csroffs(tx_pause_mac_ctrl_frames));
	buf[7] = csrrd32(priv->mac_dev,
			 tse_csroffs(rx_pause_mac_ctrl_frames));
	buf[8] = csrrd32(priv->mac_dev,
			 tse_csroffs(if_in_errors));
	buf[9] = csrrd32(priv->mac_dev,
			 tse_csroffs(if_out_errors));
	buf[10] = csrrd32(priv->mac_dev,
			  tse_csroffs(if_in_ucast_pkts));
	buf[11] = csrrd32(priv->mac_dev,
			  tse_csroffs(if_in_multicast_pkts));
	buf[12] = csrrd32(priv->mac_dev,
			  tse_csroffs(if_in_broadcast_pkts));
	buf[13] = csrrd32(priv->mac_dev,
			  tse_csroffs(if_out_discards));
	buf[14] = csrrd32(priv->mac_dev,
			  tse_csroffs(if_out_ucast_pkts));
	buf[15] = csrrd32(priv->mac_dev,
			  tse_csroffs(if_out_multicast_pkts));
	buf[16] = csrrd32(priv->mac_dev,
			  tse_csroffs(if_out_broadcast_pkts));
	buf[17] = csrrd32(priv->mac_dev,
			  tse_csroffs(ether_stats_drop_events));

	/* Extended etherStatsOctets counter */
	ext = (u64) csrrd32(priv->mac_dev,
			    tse_csroffs(msb_ether_stats_octets)) << 32;
	ext |= csrrd32(priv->mac_dev,
		       tse_csroffs(ether_stats_octets));
	buf[18] = ext;

	buf[19] = csrrd32(priv->mac_dev,
			  tse_csroffs(ether_stats_pkts));
	buf[20] = csrrd32(priv->mac_dev,
			  tse_csroffs(ether_stats_undersize_pkts));
	buf[21] = csrrd32(priv->mac_dev,
			  tse_csroffs(ether_stats_oversize_pkts));
	buf[22] = csrrd32(priv->mac_dev,
			  tse_csroffs(ether_stats_pkts_64_octets));
	buf[23] = csrrd32(priv->mac_dev,
			  tse_csroffs(ether_stats_pkts_65to127_octets));
	buf[24] = csrrd32(priv->mac_dev,
			  tse_csroffs(ether_stats_pkts_128to255_octets));
	buf[25] = csrrd32(priv->mac_dev,
			  tse_csroffs(ether_stats_pkts_256to511_octets));
	buf[26] = csrrd32(priv->mac_dev,
			  tse_csroffs(ether_stats_pkts_512to1023_octets));
	buf[27] = csrrd32(priv->mac_dev,
			  tse_csroffs(ether_stats_pkts_1024to1518_octets));
	buf[28] = csrrd32(priv->mac_dev,
			  tse_csroffs(ether_stats_pkts_1519tox_octets));
	buf[29] = csrrd32(priv->mac_dev,
			  tse_csroffs(ether_stats_jabbers));
	buf[30] = csrrd32(priv->mac_dev,
			  tse_csroffs(ether_stats_fragments));
}

static int tse_sset_count(struct net_device *dev, int sset)
{
	switch (sset) {
	case ETH_SS_STATS:
		return TSE_STATS_LEN;
	default:
		return -EOPNOTSUPP;
	}
}

static u32 tse_get_msglevel(struct net_device *dev)
{
	struct altera_tse_private *priv = netdev_priv(dev);
	return priv->msg_enable;
}

static void tse_set_msglevel(struct net_device *dev, uint32_t data)
{
	struct altera_tse_private *priv = netdev_priv(dev);
	priv->msg_enable = data;
}

static int tse_reglen(struct net_device *dev)
{
	return TSE_NUM_REGS * sizeof(u32);
}

static void tse_get_regs(struct net_device *dev, struct ethtool_regs *regs,
			 void *regbuf)
{
	struct altera_tse_private *priv = netdev_priv(dev);
	u32 *buf = regbuf;
	int i;

	/* Set version to a known value, so ethtool knows
	 * how to do any special formatting of this data.
	 * This version number will need to change if and
	 * when this register table is changed.
	 *
	 * version[31:0] = 1: Dump the first 128 TSE Registers
	 *      Upper bits are all 0 by default
	 *
	 * Upper 16-bits will indicate feature presence for
	 * Ethtool register decoding in future version.
	 */

	regs->version = 1;

	for (i = 0; i < TSE_NUM_REGS; i++)
		buf[i] = csrrd32(priv->mac_dev, i * 4);
}

static int tse_ethtool_set_link_ksettings(struct net_device *dev,
					  const struct ethtool_link_ksettings *cmd)
{
	struct altera_tse_private *priv = netdev_priv(dev);

	return phylink_ethtool_ksettings_set(priv->phylink, cmd);
}

static int tse_ethtool_get_link_ksettings(struct net_device *dev,
					  struct ethtool_link_ksettings *cmd)
{
	struct altera_tse_private *priv = netdev_priv(dev);

	return phylink_ethtool_ksettings_get(priv->phylink, cmd);
}

static const struct ethtool_ops tse_ethtool_ops = {
	.get_drvinfo = tse_get_drvinfo,
	.get_regs_len = tse_reglen,
	.get_regs = tse_get_regs,
	.get_link = ethtool_op_get_link,
	.get_strings = tse_gstrings,
	.get_sset_count = tse_sset_count,
	.get_ethtool_stats = tse_fill_stats,
	.get_msglevel = tse_get_msglevel,
	.set_msglevel = tse_set_msglevel,
	.get_link_ksettings = tse_ethtool_get_link_ksettings,
	.set_link_ksettings = tse_ethtool_set_link_ksettings,
	.get_ts_info = ethtool_op_get_ts_info,
};

void altera_tse_set_ethtool_ops(struct net_device *netdev)
{
	netdev->ethtool_ops = &tse_ethtool_ops;
}