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1/*2 * Copyright(c) 2017 Intel Corporation.3 *4 * This file is provided under a dual BSD/GPLv2 license. When using or5 * redistributing this file, you may do so under either license.6 *7 * GPL LICENSE SUMMARY8 *9 * This program is free software; you can redistribute it and/or modify10 * it under the terms of version 2 of the GNU General Public License as11 * published by the Free Software Foundation.12 *13 * This program is distributed in the hope that it will be useful, but14 * WITHOUT ANY WARRANTY; without even the implied warranty of15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU16 * General Public License for more details.17 *18 * BSD LICENSE19 *20 * Redistribution and use in source and binary forms, with or without21 * modification, are permitted provided that the following conditions22 * are met:23 *24 * - Redistributions of source code must retain the above copyright25 * notice, this list of conditions and the following disclaimer.26 * - Redistributions in binary form must reproduce the above copyright27 * notice, this list of conditions and the following disclaimer in28 * the documentation and/or other materials provided with the29 * distribution.30 * - Neither the name of Intel Corporation nor the names of its31 * contributors may be used to endorse or promote products derived32 * from this software without specific prior written permission.33 *34 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS35 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT36 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR37 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT38 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,39 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT40 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,41 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY42 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT43 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE44 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.45 *46 */47 48/*49 * This file contains OPA VNIC ethtool functions50 */51 52#include <linux/ethtool.h>53 54#include "opa_vnic_internal.h"55 56enum {NETDEV_STATS, VNIC_STATS};57 58struct vnic_stats {59 char stat_string[ETH_GSTRING_LEN];60 struct {61 int sizeof_stat;62 int stat_offset;63 };64};65 66#define VNIC_STAT(m) { sizeof_field(struct opa_vnic_stats, m), \67 offsetof(struct opa_vnic_stats, m) }68 69static struct vnic_stats vnic_gstrings_stats[] = {70 /* NETDEV stats */71 {"rx_packets", VNIC_STAT(netstats.rx_packets)},72 {"tx_packets", VNIC_STAT(netstats.tx_packets)},73 {"rx_bytes", VNIC_STAT(netstats.rx_bytes)},74 {"tx_bytes", VNIC_STAT(netstats.tx_bytes)},75 {"rx_errors", VNIC_STAT(netstats.rx_errors)},76 {"tx_errors", VNIC_STAT(netstats.tx_errors)},77 {"rx_dropped", VNIC_STAT(netstats.rx_dropped)},78 {"tx_dropped", VNIC_STAT(netstats.tx_dropped)},79 80 /* SUMMARY counters */81 {"tx_unicast", VNIC_STAT(tx_grp.unicast)},82 {"tx_mcastbcast", VNIC_STAT(tx_grp.mcastbcast)},83 {"tx_untagged", VNIC_STAT(tx_grp.untagged)},84 {"tx_vlan", VNIC_STAT(tx_grp.vlan)},85 86 {"tx_64_size", VNIC_STAT(tx_grp.s_64)},87 {"tx_65_127", VNIC_STAT(tx_grp.s_65_127)},88 {"tx_128_255", VNIC_STAT(tx_grp.s_128_255)},89 {"tx_256_511", VNIC_STAT(tx_grp.s_256_511)},90 {"tx_512_1023", VNIC_STAT(tx_grp.s_512_1023)},91 {"tx_1024_1518", VNIC_STAT(tx_grp.s_1024_1518)},92 {"tx_1519_max", VNIC_STAT(tx_grp.s_1519_max)},93 94 {"rx_unicast", VNIC_STAT(rx_grp.unicast)},95 {"rx_mcastbcast", VNIC_STAT(rx_grp.mcastbcast)},96 {"rx_untagged", VNIC_STAT(rx_grp.untagged)},97 {"rx_vlan", VNIC_STAT(rx_grp.vlan)},98 99 {"rx_64_size", VNIC_STAT(rx_grp.s_64)},100 {"rx_65_127", VNIC_STAT(rx_grp.s_65_127)},101 {"rx_128_255", VNIC_STAT(rx_grp.s_128_255)},102 {"rx_256_511", VNIC_STAT(rx_grp.s_256_511)},103 {"rx_512_1023", VNIC_STAT(rx_grp.s_512_1023)},104 {"rx_1024_1518", VNIC_STAT(rx_grp.s_1024_1518)},105 {"rx_1519_max", VNIC_STAT(rx_grp.s_1519_max)},106 107 /* ERROR counters */108 {"rx_fifo_errors", VNIC_STAT(netstats.rx_fifo_errors)},109 {"rx_length_errors", VNIC_STAT(netstats.rx_length_errors)},110 111 {"tx_fifo_errors", VNIC_STAT(netstats.tx_fifo_errors)},112 {"tx_carrier_errors", VNIC_STAT(netstats.tx_carrier_errors)},113 114 {"tx_dlid_zero", VNIC_STAT(tx_dlid_zero)},115 {"tx_drop_state", VNIC_STAT(tx_drop_state)},116 {"rx_drop_state", VNIC_STAT(rx_drop_state)},117 {"rx_oversize", VNIC_STAT(rx_oversize)},118 {"rx_runt", VNIC_STAT(rx_runt)},119};120 121#define VNIC_STATS_LEN ARRAY_SIZE(vnic_gstrings_stats)122 123/* vnic_get_drvinfo - get driver info */124static void vnic_get_drvinfo(struct net_device *netdev,125 struct ethtool_drvinfo *drvinfo)126{127 strscpy(drvinfo->driver, opa_vnic_driver_name, sizeof(drvinfo->driver));128 strscpy(drvinfo->bus_info, dev_name(netdev->dev.parent),129 sizeof(drvinfo->bus_info));130}131 132/* vnic_get_sset_count - get string set count */133static int vnic_get_sset_count(struct net_device *netdev, int sset)134{135 return (sset == ETH_SS_STATS) ? VNIC_STATS_LEN : -EOPNOTSUPP;136}137 138/* vnic_get_ethtool_stats - get statistics */139static void vnic_get_ethtool_stats(struct net_device *netdev,140 struct ethtool_stats *stats, u64 *data)141{142 struct opa_vnic_adapter *adapter = opa_vnic_priv(netdev);143 struct opa_vnic_stats vstats;144 int i;145 146 memset(&vstats, 0, sizeof(vstats));147 spin_lock(&adapter->stats_lock);148 adapter->rn_ops->ndo_get_stats64(netdev, &vstats.netstats);149 spin_unlock(&adapter->stats_lock);150 for (i = 0; i < VNIC_STATS_LEN; i++) {151 char *p = (char *)&vstats + vnic_gstrings_stats[i].stat_offset;152 153 data[i] = (vnic_gstrings_stats[i].sizeof_stat ==154 sizeof(u64)) ? *(u64 *)p : *(u32 *)p;155 }156}157 158/* vnic_get_strings - get strings */159static void vnic_get_strings(struct net_device *netdev, u32 stringset, u8 *data)160{161 int i;162 163 if (stringset != ETH_SS_STATS)164 return;165 166 for (i = 0; i < VNIC_STATS_LEN; i++)167 memcpy(data + i * ETH_GSTRING_LEN,168 vnic_gstrings_stats[i].stat_string,169 ETH_GSTRING_LEN);170}171 172/* ethtool ops */173static const struct ethtool_ops opa_vnic_ethtool_ops = {174 .get_drvinfo = vnic_get_drvinfo,175 .get_link = ethtool_op_get_link,176 .get_strings = vnic_get_strings,177 .get_sset_count = vnic_get_sset_count,178 .get_ethtool_stats = vnic_get_ethtool_stats,179};180 181/* opa_vnic_set_ethtool_ops - set ethtool ops */182void opa_vnic_set_ethtool_ops(struct net_device *netdev)183{184 netdev->ethtool_ops = &opa_vnic_ethtool_ops;185}186