diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_ethtool.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_ethtool.c | 45 |
1 files changed, 40 insertions, 5 deletions
diff --git a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_ethtool.c b/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_ethtool.c index ceeb7f4c3f6c..8b63968bbee9 100644 --- a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_ethtool.c +++ b/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_ethtool.c @@ -24,11 +24,9 @@ static void mlxbf_gige_get_regs(struct net_device *netdev, regs->version = MLXBF_GIGE_REGS_VERSION; /* Read entire MMIO register space and store results - * into the provided buffer. Each 64-bit word is converted - * to big-endian to make the output more readable. - * - * NOTE: by design, a read to an offset without an existing - * register will be acknowledged and return zero. + * into the provided buffer. By design, a read to an + * offset without an existing register will be + * acknowledged and return zero. */ memcpy_fromio(p, priv->base, MLXBF_GIGE_MMIO_REG_SZ); } @@ -126,6 +124,41 @@ static void mlxbf_gige_get_pauseparam(struct net_device *netdev, pause->tx_pause = 1; } +static bool mlxbf_gige_llu_counters_enabled(struct mlxbf_gige *priv) +{ + u32 data; + + if (priv->hw_version == MLXBF_GIGE_VERSION_BF2) { + data = readl(priv->llu_base + MLXBF_GIGE_BF2_LLU_GENERAL_CONFIG); + if (data & MLXBF_GIGE_BF2_LLU_COUNTERS_EN) + return true; + } else { + data = readl(priv->llu_base + MLXBF_GIGE_BF3_LLU_GENERAL_CONFIG); + if (data & MLXBF_GIGE_BF3_LLU_COUNTERS_EN) + return true; + } + + return false; +} + +static void mlxbf_gige_get_pause_stats(struct net_device *netdev, + struct ethtool_pause_stats *pause_stats) +{ + struct mlxbf_gige *priv = netdev_priv(netdev); + u64 data_lo, data_hi; + + /* Read LLU counters to provide stats only if counters are enabled */ + if (mlxbf_gige_llu_counters_enabled(priv)) { + data_lo = readl(priv->llu_base + MLXBF_GIGE_TX_PAUSE_CNT_LO); + data_hi = readl(priv->llu_base + MLXBF_GIGE_TX_PAUSE_CNT_HI); + pause_stats->tx_pause_frames = (data_hi << 32) | data_lo; + + data_lo = readl(priv->llu_base + MLXBF_GIGE_RX_PAUSE_CNT_LO); + data_hi = readl(priv->llu_base + MLXBF_GIGE_RX_PAUSE_CNT_HI); + pause_stats->rx_pause_frames = (data_hi << 32) | data_lo; + } +} + const struct ethtool_ops mlxbf_gige_ethtool_ops = { .get_link = ethtool_op_get_link, .get_ringparam = mlxbf_gige_get_ringparam, @@ -136,5 +169,7 @@ const struct ethtool_ops mlxbf_gige_ethtool_ops = { .get_ethtool_stats = mlxbf_gige_get_ethtool_stats, .nway_reset = phy_ethtool_nway_reset, .get_pauseparam = mlxbf_gige_get_pauseparam, + .get_pause_stats = mlxbf_gige_get_pause_stats, .get_link_ksettings = phy_ethtool_get_link_ksettings, + .set_link_ksettings = phy_ethtool_set_link_ksettings, }; |