You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
152 lines
4.7 KiB
152 lines
4.7 KiB
/*
|
|
* 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_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->tx_coalesce_usecs = priv->ethtool.coalesce_usecs;
|
|
coal->rx_max_coalesced_frames = priv->ethtool.max_coalesced_frames;
|
|
coal->tx_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;
|
|
|
|
/*
|
|
* Since IPoIB uses a single CQ for both rx and tx, we assume
|
|
* that rx params dictate the configuration. 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;
|
|
}
|
|
|
|
coal->tx_coalesce_usecs = coal->rx_coalesce_usecs;
|
|
coal->tx_max_coalesced_frames = coal->rx_max_coalesced_frames;
|
|
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,
|
|
.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);
|
|
}
|
|
|