summaryrefslogtreecommitdiff
path: root/drivers/net/stmmac/stmmac_ethtool.c
blob: 7ed8fb6c2117250e7c55ceb6eef9a009e3223dae (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
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
/*******************************************************************************
  STMMAC Ethtool support

  Copyright (C) 2007-2009  STMicroelectronics Ltd

  This program is free software; you can redistribute it and/or modify it
  under the terms and conditions of the GNU General Public License,
  version 2, as published by the Free Software Foundation.

  This program is distributed in the hope it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  more details.

  You should have received a copy of the GNU General Public License along with
  this program; if not, write to the Free Software Foundation, Inc.,
  51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.

  The full GNU General Public License is included in this distribution in
  the file called "COPYING".

  Author: Giuseppe Cavallaro <peppe.cavallaro@st.com>
*******************************************************************************/

#include <linux/etherdevice.h>
#include <linux/ethtool.h>
#include <linux/interrupt.h>
#include <linux/mii.h>
#include <linux/phy.h>
#include <asm/io.h>

#include "stmmac.h"
#include "dwmac_dma.h"

#define REG_SPACE_SIZE	0x1054
#define MAC100_ETHTOOL_NAME	"st_mac100"
#define GMAC_ETHTOOL_NAME	"st_gmac"

struct stmmac_stats {
	char stat_string[ETH_GSTRING_LEN];
	int sizeof_stat;
	int stat_offset;
};

#define STMMAC_STAT(m)	\
	{ #m, FIELD_SIZEOF(struct stmmac_extra_stats, m),	\
	offsetof(struct stmmac_priv, xstats.m)}

static const struct  stmmac_stats stmmac_gstrings_stats[] = {
	STMMAC_STAT(tx_underflow),
	STMMAC_STAT(tx_carrier),
	STMMAC_STAT(tx_losscarrier),
	STMMAC_STAT(tx_heartbeat),
	STMMAC_STAT(tx_deferred),
	STMMAC_STAT(tx_vlan),
	STMMAC_STAT(rx_vlan),
	STMMAC_STAT(tx_jabber),
	STMMAC_STAT(tx_frame_flushed),
	STMMAC_STAT(tx_payload_error),
	STMMAC_STAT(tx_ip_header_error),
	STMMAC_STAT(rx_desc),
	STMMAC_STAT(rx_partial),
	STMMAC_STAT(rx_runt),
	STMMAC_STAT(rx_toolong),
	STMMAC_STAT(rx_collision),
	STMMAC_STAT(rx_crc),
	STMMAC_STAT(rx_length),
	STMMAC_STAT(rx_mii),
	STMMAC_STAT(rx_multicast),
	STMMAC_STAT(rx_gmac_overflow),
	STMMAC_STAT(rx_watchdog),
	STMMAC_STAT(da_rx_filter_fail),
	STMMAC_STAT(sa_rx_filter_fail),
	STMMAC_STAT(rx_missed_cntr),
	STMMAC_STAT(rx_overflow_cntr),
	STMMAC_STAT(tx_undeflow_irq),
	STMMAC_STAT(tx_process_stopped_irq),
	STMMAC_STAT(tx_jabber_irq),
	STMMAC_STAT(rx_overflow_irq),
	STMMAC_STAT(rx_buf_unav_irq),
	STMMAC_STAT(rx_process_stopped_irq),
	STMMAC_STAT(rx_watchdog_irq),
	STMMAC_STAT(tx_early_irq),
	STMMAC_STAT(fatal_bus_error_irq),
	STMMAC_STAT(threshold),
	STMMAC_STAT(tx_pkt_n),
	STMMAC_STAT(rx_pkt_n),
	STMMAC_STAT(poll_n),
	STMMAC_STAT(sched_timer_n),
	STMMAC_STAT(normal_irq_n),
};
#define STMMAC_STATS_LEN ARRAY_SIZE(stmmac_gstrings_stats)

static void stmmac_ethtool_getdrvinfo(struct net_device *dev,
				      struct ethtool_drvinfo *info)
{
	struct stmmac_priv *priv = netdev_priv(dev);

	if (!priv->plat->has_gmac)
		strcpy(info->driver, MAC100_ETHTOOL_NAME);
	else
		strcpy(info->driver, GMAC_ETHTOOL_NAME);

	strcpy(info->version, DRV_MODULE_VERSION);
	info->fw_version[0] = '\0';
	info->n_stats = STMMAC_STATS_LEN;
}

static int stmmac_ethtool_getsettings(struct net_device *dev,
				      struct ethtool_cmd *cmd)
{
	struct stmmac_priv *priv = netdev_priv(dev);
	struct phy_device *phy = priv->phydev;
	int rc;
	if (phy == NULL) {
		pr_err("%s: %s: PHY is not registered\n",
		       __func__, dev->name);
		return -ENODEV;
	}
	if (!netif_running(dev)) {
		pr_err("%s: interface is disabled: we cannot track "
		"link speed / duplex setting\n", dev->name);
		return -EBUSY;
	}
	cmd->transceiver = XCVR_INTERNAL;
	spin_lock_irq(&priv->lock);
	rc = phy_ethtool_gset(phy, cmd);
	spin_unlock_irq(&priv->lock);
	return rc;
}

static int stmmac_ethtool_setsettings(struct net_device *dev,
				      struct ethtool_cmd *cmd)
{
	struct stmmac_priv *priv = netdev_priv(dev);
	struct phy_device *phy = priv->phydev;
	int rc;

	spin_lock(&priv->lock);
	rc = phy_ethtool_sset(phy, cmd);
	spin_unlock(&priv->lock);

	return rc;
}

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

static void stmmac_ethtool_setmsglevel(struct net_device *dev, u32 level)
{
	struct stmmac_priv *priv = netdev_priv(dev);
	priv->msg_enable = level;

}

static int stmmac_check_if_running(struct net_device *dev)
{
	if (!netif_running(dev))
		return -EBUSY;
	return 0;
}

static int stmmac_ethtool_get_regs_len(struct net_device *dev)
{
	return REG_SPACE_SIZE;
}

static void stmmac_ethtool_gregs(struct net_device *dev,
			  struct ethtool_regs *regs, void *space)
{
	int i;
	u32 *reg_space = (u32 *) space;

	struct stmmac_priv *priv = netdev_priv(dev);

	memset(reg_space, 0x0, REG_SPACE_SIZE);

	if (!priv->plat->has_gmac) {
		/* MAC registers */
		for (i = 0; i < 12; i++)
			reg_space[i] = readl(priv->ioaddr + (i * 4));
		/* DMA registers */
		for (i = 0; i < 9; i++)
			reg_space[i + 12] =
			    readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
		reg_space[22] = readl(priv->ioaddr + DMA_CUR_TX_BUF_ADDR);
		reg_space[23] = readl(priv->ioaddr + DMA_CUR_RX_BUF_ADDR);
	} else {
		/* MAC registers */
		for (i = 0; i < 55; i++)
			reg_space[i] = readl(priv->ioaddr + (i * 4));
		/* DMA registers */
		for (i = 0; i < 22; i++)
			reg_space[i + 55] =
			    readl(priv->ioaddr + (DMA_BUS_MODE + (i * 4)));
	}
}

static void
stmmac_get_pauseparam(struct net_device *netdev,
		      struct ethtool_pauseparam *pause)
{
	struct stmmac_priv *priv = netdev_priv(netdev);

	spin_lock(&priv->lock);

	pause->rx_pause = 0;
	pause->tx_pause = 0;
	pause->autoneg = priv->phydev->autoneg;

	if (priv->flow_ctrl & FLOW_RX)
		pause->rx_pause = 1;
	if (priv->flow_ctrl & FLOW_TX)
		pause->tx_pause = 1;

	spin_unlock(&priv->lock);
}

static int
stmmac_set_pauseparam(struct net_device *netdev,
		      struct ethtool_pauseparam *pause)
{
	struct stmmac_priv *priv = netdev_priv(netdev);
	struct phy_device *phy = priv->phydev;
	int new_pause = FLOW_OFF;
	int ret = 0;

	spin_lock(&priv->lock);

	if (pause->rx_pause)
		new_pause |= FLOW_RX;
	if (pause->tx_pause)
		new_pause |= FLOW_TX;

	priv->flow_ctrl = new_pause;
	phy->autoneg = pause->autoneg;

	if (phy->autoneg) {
		if (netif_running(netdev))
			ret = phy_start_aneg(phy);
	} else
		priv->hw->mac->flow_ctrl(priv->ioaddr, phy->duplex,
					 priv->flow_ctrl, priv->pause);
	spin_unlock(&priv->lock);
	return ret;
}

static void stmmac_get_ethtool_stats(struct net_device *dev,
				 struct ethtool_stats *dummy, u64 *data)
{
	struct stmmac_priv *priv = netdev_priv(dev);
	int i;

	/* Update HW stats if supported */
	priv->hw->dma->dma_diagnostic_fr(&dev->stats, (void *) &priv->xstats,
					 priv->ioaddr);

	for (i = 0; i < STMMAC_STATS_LEN; i++) {
		char *p = (char *)priv + stmmac_gstrings_stats[i].stat_offset;
		data[i] = (stmmac_gstrings_stats[i].sizeof_stat ==
		sizeof(u64)) ? (*(u64 *)p) : (*(u32 *)p);
	}
}

static int stmmac_get_sset_count(struct net_device *netdev, int sset)
{
	switch (sset) {
	case ETH_SS_STATS:
		return STMMAC_STATS_LEN;
	default:
		return -EOPNOTSUPP;
	}
}

static void stmmac_get_strings(struct net_device *dev, u32 stringset, u8 *data)
{
	int i;
	u8 *p = data;

	switch (stringset) {
	case ETH_SS_STATS:
		for (i = 0; i < STMMAC_STATS_LEN; i++) {
			memcpy(p, stmmac_gstrings_stats[i].stat_string,
				ETH_GSTRING_LEN);
			p += ETH_GSTRING_LEN;
		}
		break;
	default:
		WARN_ON(1);
		break;
	}
}

/* Currently only support WOL through Magic packet. */
static void stmmac_get_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
	struct stmmac_priv *priv = netdev_priv(dev);

	spin_lock_irq(&priv->lock);
	if (device_can_wakeup(priv->device)) {
		wol->supported = WAKE_MAGIC | WAKE_UCAST;
		wol->wolopts = priv->wolopts;
	}
	spin_unlock_irq(&priv->lock);
}

static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol)
{
	struct stmmac_priv *priv = netdev_priv(dev);
	u32 support = WAKE_MAGIC | WAKE_UCAST;

	if (!device_can_wakeup(priv->device))
		return -EINVAL;

	if (wol->wolopts & ~support)
		return -EINVAL;

	if (wol->wolopts) {
		pr_info("stmmac: wakeup enable\n");
		device_set_wakeup_enable(priv->device, 1);
		enable_irq_wake(dev->irq);
	} else {
		device_set_wakeup_enable(priv->device, 0);
		disable_irq_wake(dev->irq);
	}

	spin_lock_irq(&priv->lock);
	priv->wolopts = wol->wolopts;
	spin_unlock_irq(&priv->lock);

	return 0;
}

static struct ethtool_ops stmmac_ethtool_ops = {
	.begin = stmmac_check_if_running,
	.get_drvinfo = stmmac_ethtool_getdrvinfo,
	.get_settings = stmmac_ethtool_getsettings,
	.set_settings = stmmac_ethtool_setsettings,
	.get_msglevel = stmmac_ethtool_getmsglevel,
	.set_msglevel = stmmac_ethtool_setmsglevel,
	.get_regs = stmmac_ethtool_gregs,
	.get_regs_len = stmmac_ethtool_get_regs_len,
	.get_link = ethtool_op_get_link,
	.get_pauseparam = stmmac_get_pauseparam,
	.set_pauseparam = stmmac_set_pauseparam,
	.get_ethtool_stats = stmmac_get_ethtool_stats,
	.get_strings = stmmac_get_strings,
	.get_wol = stmmac_get_wol,
	.set_wol = stmmac_set_wol,
	.get_sset_count	= stmmac_get_sset_count,
};

void stmmac_set_ethtool_ops(struct net_device *netdev)
{
	SET_ETHTOOL_OPS(netdev, &stmmac_ethtool_ops);
}