summaryrefslogtreecommitdiff
path: root/drivers/net/ethernet/freescale/dpaa/dpaa_eth_sysfs.c
blob: ec75d1c6fa89b88967862c9fd61add1f5cdb37a5 (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
/* Copyright 2008-2016 Freescale Semiconductor Inc.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *	 notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *	 notice, this list of conditions and the following disclaimer in the
 *	 documentation and/or other materials provided with the distribution.
 *     * Neither the name of Freescale Semiconductor nor the
 *	 names of its contributors may be used to endorse or promote products
 *	 derived from this software without specific prior written permission.
 *
 *
 * ALTERNATIVELY, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") as published by the Free Software
 * Foundation, either version 2 of that License or (at your option) any
 * later version.
 *
 * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include <linux/init.h>
#include <linux/module.h>
#include <linux/io.h>
#include <linux/of_net.h>
#include "dpaa_eth.h"
#include "mac.h"

static ssize_t dpaa_eth_show_addr(struct device *dev,
				  struct device_attribute *attr, char *buf)
{
	struct dpaa_priv *priv = netdev_priv(to_net_dev(dev));
	struct mac_device *mac_dev = priv->mac_dev;

	if (mac_dev)
		return sprintf(buf, "%llx",
				(unsigned long long)mac_dev->res->start);
	else
		return sprintf(buf, "none");
}

static ssize_t dpaa_eth_show_fqids(struct device *dev,
				   struct device_attribute *attr, char *buf)
{
	struct dpaa_priv *priv = netdev_priv(to_net_dev(dev));
	struct dpaa_fq *prev = NULL;
	char *prevstr = NULL;
	struct dpaa_fq *tmp;
	struct dpaa_fq *fq;
	u32 first_fqid = 0;
	u32 last_fqid = 0;
	ssize_t bytes = 0;
	char *str;
	int i = 0;

	list_for_each_entry_safe(fq, tmp, &priv->dpaa_fq_list, list) {
		switch (fq->fq_type) {
		case FQ_TYPE_RX_DEFAULT:
			str = "Rx default";
			break;
		case FQ_TYPE_RX_ERROR:
			str = "Rx error";
			break;
		case FQ_TYPE_TX_CONFIRM:
			str = "Tx default confirmation";
			break;
		case FQ_TYPE_TX_CONF_MQ:
			str = "Tx confirmation (mq)";
			break;
		case FQ_TYPE_TX_ERROR:
			str = "Tx error";
			break;
		case FQ_TYPE_TX:
			str = "Tx";
			break;
		default:
			str = "Unknown";
		}

		if (prev && (abs(fq->fqid - prev->fqid) != 1 ||
			     str != prevstr)) {
			if (last_fqid == first_fqid)
				bytes += sprintf(buf + bytes,
					"%s: %d\n", prevstr, prev->fqid);
			else
				bytes += sprintf(buf + bytes,
					"%s: %d - %d\n", prevstr,
					first_fqid, last_fqid);
		}

		if (prev && abs(fq->fqid - prev->fqid) == 1 &&
		    str == prevstr) {
			last_fqid = fq->fqid;
		} else {
			first_fqid = fq->fqid;
			last_fqid = fq->fqid;
		}

		prev = fq;
		prevstr = str;
		i++;
	}

	if (prev) {
		if (last_fqid == first_fqid)
			bytes += sprintf(buf + bytes, "%s: %d\n", prevstr,
					prev->fqid);
		else
			bytes += sprintf(buf + bytes, "%s: %d - %d\n", prevstr,
					first_fqid, last_fqid);
	}

	return bytes;
}

static ssize_t dpaa_eth_show_bpids(struct device *dev,
				   struct device_attribute *attr, char *buf)
{
	struct dpaa_priv *priv = netdev_priv(to_net_dev(dev));
	ssize_t bytes = 0;
	int i = 0;

	for (i = 0; i < DPAA_BPS_NUM; i++)
		bytes += snprintf(buf + bytes, PAGE_SIZE - bytes, "%u\n",
				  priv->dpaa_bps[i]->bpid);

	return bytes;
}

static struct device_attribute dpaa_eth_attrs[] = {
	__ATTR(device_addr, 0444, dpaa_eth_show_addr, NULL),
	__ATTR(fqids, 0444, dpaa_eth_show_fqids, NULL),
	__ATTR(bpids, 0444, dpaa_eth_show_bpids, NULL),
};

void dpaa_eth_sysfs_init(struct device *dev)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(dpaa_eth_attrs); i++)
		if (device_create_file(dev, &dpaa_eth_attrs[i])) {
			dev_err(dev, "Error creating sysfs file\n");
			while (i > 0)
				device_remove_file(dev, &dpaa_eth_attrs[--i]);
			return;
		}
}

void dpaa_eth_sysfs_remove(struct device *dev)
{
	int i;

	for (i = 0; i < ARRAY_SIZE(dpaa_eth_attrs); i++)
		device_remove_file(dev, &dpaa_eth_attrs[i]);
}