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eth: fbnic: Read PHY stats via the ethtool API

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Provide support to read PHY stats (FEC and PCS) via the ethtool API.

]# ethtool -I --show-fec eth0
FEC parameters for eth0:
Supported/Configured FEC encodings: RS
Active FEC encoding: RS
Statistics:
  corrected_blocks: 0
  uncorrectable_blocks: 0

]# ethtool -S eth0 --groups eth-phy
Standard stats for eth0:
eth-phy-SymbolErrorDuringCarrier: 0

Signed-off-by: Mohsin Bashir <mohsin.bashr@gmail.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Link: https://patch.msgid.link/20250825200206.2357713-6-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Mohsin Bashir 2025-08-25 13:02:05 -07:00 committed by Jakub Kicinski
parent df4c5d9a29
commit 33c493791b
1 changed files with 42 additions and 0 deletions
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42
drivers/net/ethernet/meta/fbnic/fbnic_ethtool.c
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@ -1641,6 +1641,46 @@ static void fbnic_set_counter(u64 *stat, struct fbnic_stat_counter *counter)
*stat = counter->value;
}
static void
fbnic_get_fec_stats(struct net_device *netdev,
struct ethtool_fec_stats *fec_stats)
{
struct fbnic_net *fbn = netdev_priv(netdev);
struct fbnic_phy_stats *phy_stats;
struct fbnic_dev *fbd = fbn->fbd;
fbnic_get_hw_stats32(fbd);
phy_stats = &fbd->hw_stats.phy;
spin_lock(&fbd->hw_stats.lock);
fec_stats->corrected_blocks.total =
phy_stats->fec.corrected_blocks.value;
fec_stats->uncorrectable_blocks.total =
phy_stats->fec.uncorrectable_blocks.value;
spin_unlock(&fbd->hw_stats.lock);
}
static void
fbnic_get_eth_phy_stats(struct net_device *netdev,
struct ethtool_eth_phy_stats *eth_phy_stats)
{
struct fbnic_net *fbn = netdev_priv(netdev);
struct fbnic_phy_stats *phy_stats;
struct fbnic_dev *fbd = fbn->fbd;
u64 total = 0;
int i;
fbnic_get_hw_stats32(fbd);
phy_stats = &fbd->hw_stats.phy;
spin_lock(&fbd->hw_stats.lock);
for (i = 0; i < FBNIC_PCS_MAX_LANES; i++)
total += phy_stats->pcs.SymbolErrorDuringCarrier.lanes[i].value;
eth_phy_stats->SymbolErrorDuringCarrier = total;
spin_unlock(&fbd->hw_stats.lock);
}
static void
fbnic_get_eth_mac_stats(struct net_device *netdev,
struct ethtool_eth_mac_stats *eth_mac_stats)
@ -1782,7 +1822,9 @@ static const struct ethtool_ops fbnic_ethtool_ops = {
.get_ts_info = fbnic_get_ts_info,
.get_ts_stats = fbnic_get_ts_stats,
.get_link_ksettings = fbnic_phylink_ethtool_ksettings_get,
.get_fec_stats = fbnic_get_fec_stats,
.get_fecparam = fbnic_phylink_get_fecparam,
.get_eth_phy_stats = fbnic_get_eth_phy_stats,
.get_eth_mac_stats = fbnic_get_eth_mac_stats,
.get_eth_ctrl_stats = fbnic_get_eth_ctrl_stats,
.get_rmon_stats = fbnic_get_rmon_stats,