summaryrefslogtreecommitdiff
path: root/drivers/infiniband/ulp/opa_vnic/opa_vnic_ethtool.c
blob: 42d557dff19d2eb6e7730f7ed6cc506b3c3f614f (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
/*
 * Copyright(c) 2017 Intel Corporation.
 *
 * This file is provided under a dual BSD/GPLv2 license.  When using or
 * redistributing this file, you may do so under either license.
 *
 * GPL LICENSE SUMMARY
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of version 2 of the GNU General Public License as
 * published by the Free Software Foundation.
 *
 * This program is distributed in the hope that 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.
 *
 * BSD LICENSE
 *
 * 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 Intel Corporation nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "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 THE COPYRIGHT
 * OWNER OR CONTRIBUTORS 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.
 *
 */

/*
 * This file contains OPA VNIC ethtool functions
 */

#include <linux/ethtool.h>

#include "opa_vnic_internal.h"

enum {NETDEV_STATS, VNIC_STATS};

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

#define VNIC_STAT(m)            { sizeof_field(struct opa_vnic_stats, m),   \
				  offsetof(struct opa_vnic_stats, m) }

static struct vnic_stats vnic_gstrings_stats[] = {
	/* NETDEV stats */
	{"rx_packets", VNIC_STAT(netstats.rx_packets)},
	{"tx_packets", VNIC_STAT(netstats.tx_packets)},
	{"rx_bytes", VNIC_STAT(netstats.rx_bytes)},
	{"tx_bytes", VNIC_STAT(netstats.tx_bytes)},
	{"rx_errors", VNIC_STAT(netstats.rx_errors)},
	{"tx_errors", VNIC_STAT(netstats.tx_errors)},
	{"rx_dropped", VNIC_STAT(netstats.rx_dropped)},
	{"tx_dropped", VNIC_STAT(netstats.tx_dropped)},

	/* SUMMARY counters */
	{"tx_unicast", VNIC_STAT(tx_grp.unicast)},
	{"tx_mcastbcast", VNIC_STAT(tx_grp.mcastbcast)},
	{"tx_untagged", VNIC_STAT(tx_grp.untagged)},
	{"tx_vlan", VNIC_STAT(tx_grp.vlan)},

	{"tx_64_size", VNIC_STAT(tx_grp.s_64)},
	{"tx_65_127", VNIC_STAT(tx_grp.s_65_127)},
	{"tx_128_255", VNIC_STAT(tx_grp.s_128_255)},
	{"tx_256_511", VNIC_STAT(tx_grp.s_256_511)},
	{"tx_512_1023", VNIC_STAT(tx_grp.s_512_1023)},
	{"tx_1024_1518", VNIC_STAT(tx_grp.s_1024_1518)},
	{"tx_1519_max", VNIC_STAT(tx_grp.s_1519_max)},

	{"rx_unicast", VNIC_STAT(rx_grp.unicast)},
	{"rx_mcastbcast", VNIC_STAT(rx_grp.mcastbcast)},
	{"rx_untagged", VNIC_STAT(rx_grp.untagged)},
	{"rx_vlan", VNIC_STAT(rx_grp.vlan)},

	{"rx_64_size", VNIC_STAT(rx_grp.s_64)},
	{"rx_65_127", VNIC_STAT(rx_grp.s_65_127)},
	{"rx_128_255", VNIC_STAT(rx_grp.s_128_255)},
	{"rx_256_511", VNIC_STAT(rx_grp.s_256_511)},
	{"rx_512_1023", VNIC_STAT(rx_grp.s_512_1023)},
	{"rx_1024_1518", VNIC_STAT(rx_grp.s_1024_1518)},
	{"rx_1519_max", VNIC_STAT(rx_grp.s_1519_max)},

	/* ERROR counters */
	{"rx_fifo_errors", VNIC_STAT(netstats.rx_fifo_errors)},
	{"rx_length_errors", VNIC_STAT(netstats.rx_length_errors)},

	{"tx_fifo_errors", VNIC_STAT(netstats.tx_fifo_errors)},
	{"tx_carrier_errors", VNIC_STAT(netstats.tx_carrier_errors)},

	{"tx_dlid_zero", VNIC_STAT(tx_dlid_zero)},
	{"tx_drop_state", VNIC_STAT(tx_drop_state)},
	{"rx_drop_state", VNIC_STAT(rx_drop_state)},
	{"rx_oversize", VNIC_STAT(rx_oversize)},
	{"rx_runt", VNIC_STAT(rx_runt)},
};

#define VNIC_STATS_LEN  ARRAY_SIZE(vnic_gstrings_stats)

/* vnic_get_drvinfo - get driver info */
static void vnic_get_drvinfo(struct net_device *netdev,
			     struct ethtool_drvinfo *drvinfo)
{
	strlcpy(drvinfo->driver, opa_vnic_driver_name, sizeof(drvinfo->driver));
	strlcpy(drvinfo->bus_info, dev_name(netdev->dev.parent),
		sizeof(drvinfo->bus_info));
}

/* vnic_get_sset_count - get string set count */
static int vnic_get_sset_count(struct net_device *netdev, int sset)
{
	return (sset == ETH_SS_STATS) ? VNIC_STATS_LEN : -EOPNOTSUPP;
}

/* vnic_get_ethtool_stats - get statistics */
static void vnic_get_ethtool_stats(struct net_device *netdev,
				   struct ethtool_stats *stats, u64 *data)
{
	struct opa_vnic_adapter *adapter = opa_vnic_priv(netdev);
	struct opa_vnic_stats vstats;
	int i;

	memset(&vstats, 0, sizeof(vstats));
	spin_lock(&adapter->stats_lock);
	adapter->rn_ops->ndo_get_stats64(netdev, &vstats.netstats);
	spin_unlock(&adapter->stats_lock);
	for (i = 0; i < VNIC_STATS_LEN; i++) {
		char *p = (char *)&vstats + vnic_gstrings_stats[i].stat_offset;

		data[i] = (vnic_gstrings_stats[i].sizeof_stat ==
			   sizeof(u64)) ? *(u64 *)p : *(u32 *)p;
	}
}

/* vnic_get_strings - get strings */
static void vnic_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
{
	int i;

	if (stringset != ETH_SS_STATS)
		return;

	for (i = 0; i < VNIC_STATS_LEN; i++)
		memcpy(data + i * ETH_GSTRING_LEN,
		       vnic_gstrings_stats[i].stat_string,
		       ETH_GSTRING_LEN);
}

/* ethtool ops */
static const struct ethtool_ops opa_vnic_ethtool_ops = {
	.get_drvinfo = vnic_get_drvinfo,
	.get_link = ethtool_op_get_link,
	.get_strings = vnic_get_strings,
	.get_sset_count = vnic_get_sset_count,
	.get_ethtool_stats = vnic_get_ethtool_stats,
};

/* opa_vnic_set_ethtool_ops - set ethtool ops */
void opa_vnic_set_ethtool_ops(struct net_device *netdev)
{
	netdev->ethtool_ops = &opa_vnic_ethtool_ops;
}