summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/synopsys/dwc-xlgmac-ethtool.c
blob: fde722136869a142ec8f103a8189d684c45c8e49 (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
/* Synopsys DesignWare Core Enterprise Ethernet (XLGMAC) Driver
 *
 * Copyright (c) 2017 Synopsys, Inc. (www.synopsys.com)
 *
 * This program is dual-licensed; you may select either version 2 of
 * the GNU General Public License ("GPL") or BSD license ("BSD").
 *
 * This Synopsys DWC XLGMAC software driver and associated documentation
 * (hereinafter the "Software") is an unsupported proprietary work of
 * Synopsys, Inc. unless otherwise expressly agreed to in writing between
 * Synopsys and you. The Software IS NOT an item of Licensed Software or a
 * Licensed Product under any End User Software License Agreement or
 * Agreement for Licensed Products with Synopsys or any supplement thereto.
 * Synopsys is a registered trademark of Synopsys, Inc. Other names included
 * in the SOFTWARE may be the trademarks of their respective owners.
 */

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

#include "dwc-xlgmac.h"
#include "dwc-xlgmac-reg.h"

struct xlgmac_stats_desc {
	char stat_string[ETH_GSTRING_LEN];
	int stat_offset;
};

#define XLGMAC_STAT(str, var)					\
	{							\
		str,						\
		offsetof(struct xlgmac_pdata, stats.var),	\
	}

static const struct xlgmac_stats_desc xlgmac_gstring_stats[] = {
	/* MMC TX counters */
	XLGMAC_STAT("tx_bytes", txoctetcount_gb),
	XLGMAC_STAT("tx_bytes_good", txoctetcount_g),
	XLGMAC_STAT("tx_packets", txframecount_gb),
	XLGMAC_STAT("tx_packets_good", txframecount_g),
	XLGMAC_STAT("tx_unicast_packets", txunicastframes_gb),
	XLGMAC_STAT("tx_broadcast_packets", txbroadcastframes_gb),
	XLGMAC_STAT("tx_broadcast_packets_good", txbroadcastframes_g),
	XLGMAC_STAT("tx_multicast_packets", txmulticastframes_gb),
	XLGMAC_STAT("tx_multicast_packets_good", txmulticastframes_g),
	XLGMAC_STAT("tx_vlan_packets_good", txvlanframes_g),
	XLGMAC_STAT("tx_64_byte_packets", tx64octets_gb),
	XLGMAC_STAT("tx_65_to_127_byte_packets", tx65to127octets_gb),
	XLGMAC_STAT("tx_128_to_255_byte_packets", tx128to255octets_gb),
	XLGMAC_STAT("tx_256_to_511_byte_packets", tx256to511octets_gb),
	XLGMAC_STAT("tx_512_to_1023_byte_packets", tx512to1023octets_gb),
	XLGMAC_STAT("tx_1024_to_max_byte_packets", tx1024tomaxoctets_gb),
	XLGMAC_STAT("tx_underflow_errors", txunderflowerror),
	XLGMAC_STAT("tx_pause_frames", txpauseframes),

	/* MMC RX counters */
	XLGMAC_STAT("rx_bytes", rxoctetcount_gb),
	XLGMAC_STAT("rx_bytes_good", rxoctetcount_g),
	XLGMAC_STAT("rx_packets", rxframecount_gb),
	XLGMAC_STAT("rx_unicast_packets_good", rxunicastframes_g),
	XLGMAC_STAT("rx_broadcast_packets_good", rxbroadcastframes_g),
	XLGMAC_STAT("rx_multicast_packets_good", rxmulticastframes_g),
	XLGMAC_STAT("rx_vlan_packets", rxvlanframes_gb),
	XLGMAC_STAT("rx_64_byte_packets", rx64octets_gb),
	XLGMAC_STAT("rx_65_to_127_byte_packets", rx65to127octets_gb),
	XLGMAC_STAT("rx_128_to_255_byte_packets", rx128to255octets_gb),
	XLGMAC_STAT("rx_256_to_511_byte_packets", rx256to511octets_gb),
	XLGMAC_STAT("rx_512_to_1023_byte_packets", rx512to1023octets_gb),
	XLGMAC_STAT("rx_1024_to_max_byte_packets", rx1024tomaxoctets_gb),
	XLGMAC_STAT("rx_undersize_packets_good", rxundersize_g),
	XLGMAC_STAT("rx_oversize_packets_good", rxoversize_g),
	XLGMAC_STAT("rx_crc_errors", rxcrcerror),
	XLGMAC_STAT("rx_crc_errors_small_packets", rxrunterror),
	XLGMAC_STAT("rx_crc_errors_giant_packets", rxjabbererror),
	XLGMAC_STAT("rx_length_errors", rxlengtherror),
	XLGMAC_STAT("rx_out_of_range_errors", rxoutofrangetype),
	XLGMAC_STAT("rx_fifo_overflow_errors", rxfifooverflow),
	XLGMAC_STAT("rx_watchdog_errors", rxwatchdogerror),
	XLGMAC_STAT("rx_pause_frames", rxpauseframes),

	/* Extra counters */
	XLGMAC_STAT("tx_tso_packets", tx_tso_packets),
	XLGMAC_STAT("rx_split_header_packets", rx_split_header_packets),
	XLGMAC_STAT("tx_process_stopped", tx_process_stopped),
	XLGMAC_STAT("rx_process_stopped", rx_process_stopped),
	XLGMAC_STAT("tx_buffer_unavailable", tx_buffer_unavailable),
	XLGMAC_STAT("rx_buffer_unavailable", rx_buffer_unavailable),
	XLGMAC_STAT("fatal_bus_error", fatal_bus_error),
	XLGMAC_STAT("tx_vlan_packets", tx_vlan_packets),
	XLGMAC_STAT("rx_vlan_packets", rx_vlan_packets),
	XLGMAC_STAT("napi_poll_isr", napi_poll_isr),
	XLGMAC_STAT("napi_poll_txtimer", napi_poll_txtimer),
};

#define XLGMAC_STATS_COUNT	ARRAY_SIZE(xlgmac_gstring_stats)

static void xlgmac_ethtool_get_drvinfo(struct net_device *netdev,
				       struct ethtool_drvinfo *drvinfo)
{
	struct xlgmac_pdata *pdata = netdev_priv(netdev);
	u32 ver = pdata->hw_feat.version;
	u32 snpsver, devid, userver;

	strlcpy(drvinfo->driver, pdata->drv_name, sizeof(drvinfo->driver));
	strlcpy(drvinfo->version, pdata->drv_ver, sizeof(drvinfo->version));
	strlcpy(drvinfo->bus_info, dev_name(pdata->dev),
		sizeof(drvinfo->bus_info));
	/* S|SNPSVER: Synopsys-defined Version
	 * D|DEVID: Indicates the Device family
	 * U|USERVER: User-defined Version
	 */
	snpsver = XLGMAC_GET_REG_BITS(ver, MAC_VR_SNPSVER_POS,
				      MAC_VR_SNPSVER_LEN);
	devid = XLGMAC_GET_REG_BITS(ver, MAC_VR_DEVID_POS,
				    MAC_VR_DEVID_LEN);
	userver = XLGMAC_GET_REG_BITS(ver, MAC_VR_USERVER_POS,
				      MAC_VR_USERVER_LEN);
	snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
		 "S.D.U: %x.%x.%x", snpsver, devid, userver);
}

static u32 xlgmac_ethtool_get_msglevel(struct net_device *netdev)
{
	struct xlgmac_pdata *pdata = netdev_priv(netdev);

	return pdata->msg_enable;
}

static void xlgmac_ethtool_set_msglevel(struct net_device *netdev,
					u32 msglevel)
{
	struct xlgmac_pdata *pdata = netdev_priv(netdev);

	pdata->msg_enable = msglevel;
}

static void xlgmac_ethtool_get_channels(struct net_device *netdev,
					struct ethtool_channels *channel)
{
	struct xlgmac_pdata *pdata = netdev_priv(netdev);

	channel->max_rx = XLGMAC_MAX_DMA_CHANNELS;
	channel->max_tx = XLGMAC_MAX_DMA_CHANNELS;
	channel->rx_count = pdata->rx_q_count;
	channel->tx_count = pdata->tx_q_count;
}

static int xlgmac_ethtool_get_coalesce(struct net_device *netdev,
				       struct ethtool_coalesce *ec)
{
	struct xlgmac_pdata *pdata = netdev_priv(netdev);

	memset(ec, 0, sizeof(struct ethtool_coalesce));
	ec->rx_coalesce_usecs = pdata->rx_usecs;
	ec->rx_max_coalesced_frames = pdata->rx_frames;
	ec->tx_max_coalesced_frames = pdata->tx_frames;

	return 0;
}

static int xlgmac_ethtool_set_coalesce(struct net_device *netdev,
				       struct ethtool_coalesce *ec)
{
	struct xlgmac_pdata *pdata = netdev_priv(netdev);
	struct xlgmac_hw_ops *hw_ops = &pdata->hw_ops;
	unsigned int rx_frames, rx_riwt, rx_usecs;
	unsigned int tx_frames;

	/* Check for not supported parameters */
	if ((ec->rx_coalesce_usecs_irq) || (ec->rx_max_coalesced_frames_irq) ||
	    (ec->tx_coalesce_usecs) || (ec->tx_coalesce_usecs_high) ||
	    (ec->tx_max_coalesced_frames_irq) || (ec->tx_coalesce_usecs_irq) ||
	    (ec->stats_block_coalesce_usecs) ||  (ec->pkt_rate_low) ||
	    (ec->use_adaptive_rx_coalesce) || (ec->use_adaptive_tx_coalesce) ||
	    (ec->rx_max_coalesced_frames_low) || (ec->rx_coalesce_usecs_low) ||
	    (ec->tx_coalesce_usecs_low) || (ec->tx_max_coalesced_frames_low) ||
	    (ec->pkt_rate_high) || (ec->rx_coalesce_usecs_high) ||
	    (ec->rx_max_coalesced_frames_high) ||
	    (ec->tx_max_coalesced_frames_high) ||
	    (ec->rate_sample_interval))
		return -EOPNOTSUPP;

	rx_usecs = ec->rx_coalesce_usecs;
	rx_riwt = hw_ops->usec_to_riwt(pdata, rx_usecs);
	rx_frames = ec->rx_max_coalesced_frames;
	tx_frames = ec->tx_max_coalesced_frames;

	if ((rx_riwt > XLGMAC_MAX_DMA_RIWT) ||
	    (rx_riwt < XLGMAC_MIN_DMA_RIWT) ||
	    (rx_frames > pdata->rx_desc_count))
		return -EINVAL;

	if (tx_frames > pdata->tx_desc_count)
		return -EINVAL;

	pdata->rx_riwt = rx_riwt;
	pdata->rx_usecs = rx_usecs;
	pdata->rx_frames = rx_frames;
	hw_ops->config_rx_coalesce(pdata);

	pdata->tx_frames = tx_frames;
	hw_ops->config_tx_coalesce(pdata);

	return 0;
}

static void xlgmac_ethtool_get_strings(struct net_device *netdev,
				       u32 stringset, u8 *data)
{
	int i;

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

static int xlgmac_ethtool_get_sset_count(struct net_device *netdev,
					 int stringset)
{
	int ret;

	switch (stringset) {
	case ETH_SS_STATS:
		ret = XLGMAC_STATS_COUNT;
		break;

	default:
		ret = -EOPNOTSUPP;
	}

	return ret;
}

static void xlgmac_ethtool_get_ethtool_stats(struct net_device *netdev,
					     struct ethtool_stats *stats,
					     u64 *data)
{
	struct xlgmac_pdata *pdata = netdev_priv(netdev);
	u8 *stat;
	int i;

	pdata->hw_ops.read_mmc_stats(pdata);
	for (i = 0; i < XLGMAC_STATS_COUNT; i++) {
		stat = (u8 *)pdata + xlgmac_gstring_stats[i].stat_offset;
		*data++ = *(u64 *)stat;
	}
}

static const struct ethtool_ops xlgmac_ethtool_ops = {
	.get_drvinfo = xlgmac_ethtool_get_drvinfo,
	.get_link = ethtool_op_get_link,
	.get_msglevel = xlgmac_ethtool_get_msglevel,
	.set_msglevel = xlgmac_ethtool_set_msglevel,
	.get_channels = xlgmac_ethtool_get_channels,
	.get_coalesce = xlgmac_ethtool_get_coalesce,
	.set_coalesce = xlgmac_ethtool_set_coalesce,
	.get_strings = xlgmac_ethtool_get_strings,
	.get_sset_count = xlgmac_ethtool_get_sset_count,
	.get_ethtool_stats = xlgmac_ethtool_get_ethtool_stats,
};

const struct ethtool_ops *xlgmac_get_ethtool_ops(void)
{
	return &xlgmac_ethtool_ops;
}