diff options
Diffstat (limited to 'drivers/net/ethernet/pensando/ionic/ionic_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/pensando/ionic/ionic_ethtool.c | 27 |
1 files changed, 25 insertions, 2 deletions
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c index 78a802eb159f..c4ab4b5caa0a 100644 --- a/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c +++ b/drivers/net/ethernet/pensando/ionic/ionic_ethtool.c @@ -115,9 +115,32 @@ static void ionic_get_link_ext_stats(struct net_device *netdev, struct ethtool_link_ext_stats *stats) { struct ionic_lif *lif = netdev_priv(netdev); + struct ionic *ionic = lif->ionic; + u64 link_down_count_total; + u16 link_down_count_fw; + + if (ionic->pdev->is_virtfn) + return; + + if (!ionic->idev.port_info) { + netdev_err_once(netdev, "port_info not initialized\n"); + return; + } + + link_down_count_fw = + le16_to_cpu(ionic->idev.port_info->status.link_down_count); + link_down_count_total = ionic->idev.link_down_count_total + + link_down_count_fw - + ionic->idev.link_down_count_last; + + /* The firmware counter is only 16 bits and can wraparound */ + if (link_down_count_fw < ionic->idev.link_down_count_last) + link_down_count_total += BIT(16); + + ionic->idev.link_down_count_last = link_down_count_fw; + ionic->idev.link_down_count_total = link_down_count_total; - if (lif->ionic->pdev->is_physfn) - stats->link_down_events = lif->link_down_count; + stats->link_down_events = link_down_count_total; } static int ionic_get_link_ksettings(struct net_device *netdev, |