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/*
* 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)
{
strscpy(drvinfo->driver, opa_vnic_driver_name, sizeof(drvinfo->driver));
strscpy(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;
}
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