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/*
* aQuantia Corporation Network Driver
* Copyright (C) 2014-2017 aQuantia Corporation. All rights reserved
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*/
/* File aq_ethtool.c: Definition of ethertool related functions. */
#include "aq_ethtool.h"
#include "aq_nic.h"
static void aq_ethtool_get_regs(struct net_device *ndev,
struct ethtool_regs *regs, void *p)
{
struct aq_nic_s *aq_nic = netdev_priv(ndev);
u32 regs_count = aq_nic_get_regs_count(aq_nic);
memset(p, 0, regs_count * sizeof(u32));
aq_nic_get_regs(aq_nic, regs, p);
}
static int aq_ethtool_get_regs_len(struct net_device *ndev)
{
struct aq_nic_s *aq_nic = netdev_priv(ndev);
u32 regs_count = aq_nic_get_regs_count(aq_nic);
return regs_count * sizeof(u32);
}
static u32 aq_ethtool_get_link(struct net_device *ndev)
{
return ethtool_op_get_link(ndev);
}
static int aq_ethtool_get_link_ksettings(struct net_device *ndev,
struct ethtool_link_ksettings *cmd)
{
struct aq_nic_s *aq_nic = netdev_priv(ndev);
aq_nic_get_link_ksettings(aq_nic, cmd);
cmd->base.speed = netif_carrier_ok(ndev) ?
aq_nic_get_link_speed(aq_nic) : 0U;
return 0;
}
static int
aq_ethtool_set_link_ksettings(struct net_device *ndev,
const struct ethtool_link_ksettings *cmd)
{
struct aq_nic_s *aq_nic = netdev_priv(ndev);
return aq_nic_set_link_ksettings(aq_nic, cmd);
}
static const char aq_ethtool_stat_names[][ETH_GSTRING_LEN] = {
"InPackets",
"InUCast",
"InMCast",
"InBCast",
"InErrors",
"OutPackets",
"OutUCast",
"OutMCast",
"OutBCast",
"InUCastOctects",
"OutUCastOctects",
"InMCastOctects",
"OutMCastOctects",
"InBCastOctects",
"OutBCastOctects",
"InOctects",
"OutOctects",
"InPacketsDma",
"OutPacketsDma",
"InOctetsDma",
"OutOctetsDma",
"InDroppedDma",
};
static const char aq_ethtool_queue_stat_names[][ETH_GSTRING_LEN] = {
"Queue[%d] InPackets",
"Queue[%d] OutPackets",
"Queue[%d] Restarts",
"Queue[%d] InJumboPackets",
"Queue[%d] InLroPackets",
"Queue[%d] InErrors",
};
static void aq_ethtool_stats(struct net_device *ndev,
struct ethtool_stats *stats, u64 *data)
{
struct aq_nic_s *aq_nic = netdev_priv(ndev);
struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
memset(data, 0, (ARRAY_SIZE(aq_ethtool_stat_names) +
ARRAY_SIZE(aq_ethtool_queue_stat_names) *
cfg->vecs) * sizeof(u64));
aq_nic_get_stats(aq_nic, data);
}
static void aq_ethtool_get_drvinfo(struct net_device *ndev,
struct ethtool_drvinfo *drvinfo)
{
struct aq_nic_s *aq_nic = netdev_priv(ndev);
struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
struct pci_dev *pdev = to_pci_dev(ndev->dev.parent);
u32 firmware_version = aq_nic_get_fw_version(aq_nic);
u32 regs_count = aq_nic_get_regs_count(aq_nic);
strlcat(drvinfo->driver, AQ_CFG_DRV_NAME, sizeof(drvinfo->driver));
strlcat(drvinfo->version, AQ_CFG_DRV_VERSION, sizeof(drvinfo->version));
snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version),
"%u.%u.%u", firmware_version >> 24,
(firmware_version >> 16) & 0xFFU, firmware_version & 0xFFFFU);
strlcpy(drvinfo->bus_info, pdev ? pci_name(pdev) : "",
sizeof(drvinfo->bus_info));
drvinfo->n_stats = ARRAY_SIZE(aq_ethtool_stat_names) +
cfg->vecs * ARRAY_SIZE(aq_ethtool_queue_stat_names);
drvinfo->testinfo_len = 0;
drvinfo->regdump_len = regs_count;
drvinfo->eedump_len = 0;
}
static void aq_ethtool_get_strings(struct net_device *ndev,
u32 stringset, u8 *data)
{
int i, si;
struct aq_nic_s *aq_nic = netdev_priv(ndev);
struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
u8 *p = data;
if (stringset == ETH_SS_STATS) {
memcpy(p, *aq_ethtool_stat_names,
sizeof(aq_ethtool_stat_names));
p = p + sizeof(aq_ethtool_stat_names);
for (i = 0; i < cfg->vecs; i++) {
for (si = 0;
si < ARRAY_SIZE(aq_ethtool_queue_stat_names);
si++) {
snprintf(p, ETH_GSTRING_LEN,
aq_ethtool_queue_stat_names[si], i);
p += ETH_GSTRING_LEN;
}
}
}
}
static int aq_ethtool_get_sset_count(struct net_device *ndev, int stringset)
{
int ret = 0;
struct aq_nic_s *aq_nic = netdev_priv(ndev);
struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
switch (stringset) {
case ETH_SS_STATS:
ret = ARRAY_SIZE(aq_ethtool_stat_names) +
cfg->vecs * ARRAY_SIZE(aq_ethtool_queue_stat_names);
break;
default:
ret = -EOPNOTSUPP;
}
return ret;
}
static u32 aq_ethtool_get_rss_indir_size(struct net_device *ndev)
{
return AQ_CFG_RSS_INDIRECTION_TABLE_MAX;
}
static u32 aq_ethtool_get_rss_key_size(struct net_device *ndev)
{
struct aq_nic_s *aq_nic = netdev_priv(ndev);
struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
return sizeof(cfg->aq_rss.hash_secret_key);
}
static int aq_ethtool_get_rss(struct net_device *ndev, u32 *indir, u8 *key,
u8 *hfunc)
{
struct aq_nic_s *aq_nic = netdev_priv(ndev);
struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
unsigned int i = 0U;
if (hfunc)
*hfunc = ETH_RSS_HASH_TOP; /* Toeplitz */
if (indir) {
for (i = 0; i < AQ_CFG_RSS_INDIRECTION_TABLE_MAX; i++)
indir[i] = cfg->aq_rss.indirection_table[i];
}
if (key)
memcpy(key, cfg->aq_rss.hash_secret_key,
sizeof(cfg->aq_rss.hash_secret_key));
return 0;
}
static int aq_ethtool_get_rxnfc(struct net_device *ndev,
struct ethtool_rxnfc *cmd,
u32 *rule_locs)
{
struct aq_nic_s *aq_nic = netdev_priv(ndev);
struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
int err = 0;
switch (cmd->cmd) {
case ETHTOOL_GRXRINGS:
cmd->data = cfg->vecs;
break;
default:
err = -EOPNOTSUPP;
break;
}
return err;
}
static int aq_ethtool_get_coalesce(struct net_device *ndev,
struct ethtool_coalesce *coal)
{
struct aq_nic_s *aq_nic = netdev_priv(ndev);
struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
if (cfg->itr == AQ_CFG_INTERRUPT_MODERATION_ON ||
cfg->itr == AQ_CFG_INTERRUPT_MODERATION_AUTO) {
coal->rx_coalesce_usecs = cfg->rx_itr;
coal->tx_coalesce_usecs = cfg->tx_itr;
coal->rx_max_coalesced_frames = 0;
coal->tx_max_coalesced_frames = 0;
} else {
coal->rx_coalesce_usecs = 0;
coal->tx_coalesce_usecs = 0;
coal->rx_max_coalesced_frames = 1;
coal->tx_max_coalesced_frames = 1;
}
return 0;
}
static int aq_ethtool_set_coalesce(struct net_device *ndev,
struct ethtool_coalesce *coal)
{
struct aq_nic_s *aq_nic = netdev_priv(ndev);
struct aq_nic_cfg_s *cfg = aq_nic_get_cfg(aq_nic);
/* This is not yet supported
*/
if (coal->use_adaptive_rx_coalesce || coal->use_adaptive_tx_coalesce)
return -EOPNOTSUPP;
/* Atlantic only supports timing based coalescing
*/
if (coal->rx_max_coalesced_frames > 1 ||
coal->rx_coalesce_usecs_irq ||
coal->rx_max_coalesced_frames_irq)
return -EOPNOTSUPP;
if (coal->tx_max_coalesced_frames > 1 ||
coal->tx_coalesce_usecs_irq ||
coal->tx_max_coalesced_frames_irq)
return -EOPNOTSUPP;
/* We do not support frame counting. Check this
*/
if (!(coal->rx_max_coalesced_frames == !coal->rx_coalesce_usecs))
return -EOPNOTSUPP;
if (!(coal->tx_max_coalesced_frames == !coal->tx_coalesce_usecs))
return -EOPNOTSUPP;
if (coal->rx_coalesce_usecs > AQ_CFG_INTERRUPT_MODERATION_USEC_MAX ||
coal->tx_coalesce_usecs > AQ_CFG_INTERRUPT_MODERATION_USEC_MAX)
return -EINVAL;
cfg->itr = AQ_CFG_INTERRUPT_MODERATION_ON;
cfg->rx_itr = coal->rx_coalesce_usecs;
cfg->tx_itr = coal->tx_coalesce_usecs;
return aq_nic_update_interrupt_moderation_settings(aq_nic);
}
const struct ethtool_ops aq_ethtool_ops = {
.get_link = aq_ethtool_get_link,
.get_regs_len = aq_ethtool_get_regs_len,
.get_regs = aq_ethtool_get_regs,
.get_drvinfo = aq_ethtool_get_drvinfo,
.get_strings = aq_ethtool_get_strings,
.get_rxfh_indir_size = aq_ethtool_get_rss_indir_size,
.get_rxfh_key_size = aq_ethtool_get_rss_key_size,
.get_rxfh = aq_ethtool_get_rss,
.get_rxnfc = aq_ethtool_get_rxnfc,
.get_sset_count = aq_ethtool_get_sset_count,
.get_ethtool_stats = aq_ethtool_stats,
.get_link_ksettings = aq_ethtool_get_link_ksettings,
.set_link_ksettings = aq_ethtool_set_link_ksettings,
.get_coalesce = aq_ethtool_get_coalesce,
.set_coalesce = aq_ethtool_set_coalesce,
};
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