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
|
/*
* Copyright (c) 2007 Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* 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.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/kernel.h>
#include <linux/ethtool.h>
#include <linux/netdevice.h>
#include "ipoib.h"
static void ipoib_get_drvinfo(struct net_device *netdev,
struct ethtool_drvinfo *drvinfo)
{
strncpy(drvinfo->driver, "ipoib", sizeof(drvinfo->driver) - 1);
}
static u32 ipoib_get_rx_csum(struct net_device *dev)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
return test_bit(IPOIB_FLAG_CSUM, &priv->flags) &&
!test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags);
}
static int ipoib_set_tso(struct net_device *dev, u32 data)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
if (data) {
if (!test_bit(IPOIB_FLAG_ADMIN_CM, &priv->flags) &&
(dev->features & NETIF_F_SG) &&
(priv->hca_caps & IB_DEVICE_UD_TSO)) {
dev->features |= NETIF_F_TSO;
} else {
ipoib_warn(priv, "can't set TSO on\n");
return -EOPNOTSUPP;
}
} else
dev->features &= ~NETIF_F_TSO;
return 0;
}
static int ipoib_get_coalesce(struct net_device *dev,
struct ethtool_coalesce *coal)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
coal->rx_coalesce_usecs = priv->ethtool.coalesce_usecs;
coal->rx_max_coalesced_frames = priv->ethtool.max_coalesced_frames;
return 0;
}
static int ipoib_set_coalesce(struct net_device *dev,
struct ethtool_coalesce *coal)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
int ret;
/*
* These values are saved in the private data and returned
* when ipoib_get_coalesce() is called
*/
if (coal->rx_coalesce_usecs > 0xffff ||
coal->rx_max_coalesced_frames > 0xffff)
return -EINVAL;
ret = ib_modify_cq(priv->recv_cq, coal->rx_max_coalesced_frames,
coal->rx_coalesce_usecs);
if (ret && ret != -ENOSYS) {
ipoib_warn(priv, "failed modifying CQ (%d)\n", ret);
return ret;
}
priv->ethtool.coalesce_usecs = coal->rx_coalesce_usecs;
priv->ethtool.max_coalesced_frames = coal->rx_max_coalesced_frames;
return 0;
}
static const char ipoib_stats_keys[][ETH_GSTRING_LEN] = {
"LRO aggregated", "LRO flushed",
"LRO avg aggr", "LRO no desc"
};
static void ipoib_get_strings(struct net_device *netdev, u32 stringset, u8 *data)
{
switch (stringset) {
case ETH_SS_STATS:
memcpy(data, *ipoib_stats_keys, sizeof(ipoib_stats_keys));
break;
}
}
static int ipoib_get_sset_count(struct net_device *dev, int sset)
{
switch (sset) {
case ETH_SS_STATS:
return ARRAY_SIZE(ipoib_stats_keys);
default:
return -EOPNOTSUPP;
}
}
static void ipoib_get_ethtool_stats(struct net_device *dev,
struct ethtool_stats *stats, uint64_t *data)
{
struct ipoib_dev_priv *priv = netdev_priv(dev);
int index = 0;
/* Get LRO statistics */
data[index++] = priv->lro.lro_mgr.stats.aggregated;
data[index++] = priv->lro.lro_mgr.stats.flushed;
if (priv->lro.lro_mgr.stats.flushed)
data[index++] = priv->lro.lro_mgr.stats.aggregated /
priv->lro.lro_mgr.stats.flushed;
else
data[index++] = 0;
data[index++] = priv->lro.lro_mgr.stats.no_desc;
}
static const struct ethtool_ops ipoib_ethtool_ops = {
.get_drvinfo = ipoib_get_drvinfo,
.get_rx_csum = ipoib_get_rx_csum,
.set_tso = ipoib_set_tso,
.get_coalesce = ipoib_get_coalesce,
.set_coalesce = ipoib_set_coalesce,
.get_flags = ethtool_op_get_flags,
.set_flags = ethtool_op_set_flags,
.get_strings = ipoib_get_strings,
.get_sset_count = ipoib_get_sset_count,
.get_ethtool_stats = ipoib_get_ethtool_stats,
};
void ipoib_set_ethtool_ops(struct net_device *dev)
{
SET_ETHTOOL_OPS(dev, &ipoib_ethtool_ops);
}
|
