diff options
Diffstat (limited to 'drivers/net/ethernet/broadcom/genet/bcmgenet.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/genet/bcmgenet.c | 114 |
1 files changed, 113 insertions, 1 deletions
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index da1a2500c91c..f2fadb053d52 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -613,6 +613,9 @@ static const struct bcmgenet_stats bcmgenet_gstrings_stats[] = { UMAC_RBUF_OVFL_CNT), STAT_GENET_MISC("rbuf_err_cnt", mib.rbuf_err_cnt, UMAC_RBUF_ERR_CNT), STAT_GENET_MISC("mdf_err_cnt", mib.mdf_err_cnt, UMAC_MDF_ERR_CNT), + STAT_GENET_MIB_RX("alloc_rx_buff_failed", mib.alloc_rx_buff_failed), + STAT_GENET_MIB_RX("rx_dma_failed", mib.rx_dma_failed), + STAT_GENET_MIB_TX("tx_dma_failed", mib.tx_dma_failed), }; #define BCMGENET_STATS_LEN ARRAY_SIZE(bcmgenet_gstrings_stats) @@ -711,6 +714,98 @@ static void bcmgenet_get_ethtool_stats(struct net_device *dev, } } +static void bcmgenet_eee_enable_set(struct net_device *dev, bool enable) +{ + struct bcmgenet_priv *priv = netdev_priv(dev); + u32 off = priv->hw_params->tbuf_offset + TBUF_ENERGY_CTRL; + u32 reg; + + if (enable && !priv->clk_eee_enabled) { + clk_prepare_enable(priv->clk_eee); + priv->clk_eee_enabled = true; + } + + reg = bcmgenet_umac_readl(priv, UMAC_EEE_CTRL); + if (enable) + reg |= EEE_EN; + else + reg &= ~EEE_EN; + bcmgenet_umac_writel(priv, reg, UMAC_EEE_CTRL); + + /* Enable EEE and switch to a 27Mhz clock automatically */ + reg = __raw_readl(priv->base + off); + if (enable) + reg |= TBUF_EEE_EN | TBUF_PM_EN; + else + reg &= ~(TBUF_EEE_EN | TBUF_PM_EN); + __raw_writel(reg, priv->base + off); + + /* Do the same for thing for RBUF */ + reg = bcmgenet_rbuf_readl(priv, RBUF_ENERGY_CTRL); + if (enable) + reg |= RBUF_EEE_EN | RBUF_PM_EN; + else + reg &= ~(RBUF_EEE_EN | RBUF_PM_EN); + bcmgenet_rbuf_writel(priv, reg, RBUF_ENERGY_CTRL); + + if (!enable && priv->clk_eee_enabled) { + clk_disable_unprepare(priv->clk_eee); + priv->clk_eee_enabled = false; + } + + priv->eee.eee_enabled = enable; + priv->eee.eee_active = enable; +} + +static int bcmgenet_get_eee(struct net_device *dev, struct ethtool_eee *e) +{ + struct bcmgenet_priv *priv = netdev_priv(dev); + struct ethtool_eee *p = &priv->eee; + + if (GENET_IS_V1(priv)) + return -EOPNOTSUPP; + + e->eee_enabled = p->eee_enabled; + e->eee_active = p->eee_active; + e->tx_lpi_timer = bcmgenet_umac_readl(priv, UMAC_EEE_LPI_TIMER); + + return phy_ethtool_get_eee(priv->phydev, e); +} + +static int bcmgenet_set_eee(struct net_device *dev, struct ethtool_eee *e) +{ + struct bcmgenet_priv *priv = netdev_priv(dev); + struct ethtool_eee *p = &priv->eee; + int ret = 0; + + if (GENET_IS_V1(priv)) + return -EOPNOTSUPP; + + p->eee_enabled = e->eee_enabled; + + if (!p->eee_enabled) { + bcmgenet_eee_enable_set(dev, false); + } else { + ret = phy_init_eee(priv->phydev, 0); + if (ret) { + netif_err(priv, hw, dev, "EEE initialization failed\n"); + return ret; + } + + bcmgenet_umac_writel(priv, e->tx_lpi_timer, UMAC_EEE_LPI_TIMER); + bcmgenet_eee_enable_set(dev, true); + } + + return phy_ethtool_set_eee(priv->phydev, e); +} + +static int bcmgenet_nway_reset(struct net_device *dev) +{ + struct bcmgenet_priv *priv = netdev_priv(dev); + + return genphy_restart_aneg(priv->phydev); +} + /* standard ethtool support functions. */ static struct ethtool_ops bcmgenet_ethtool_ops = { .get_strings = bcmgenet_get_strings, @@ -724,6 +819,9 @@ static struct ethtool_ops bcmgenet_ethtool_ops = { .set_msglevel = bcmgenet_set_msglevel, .get_wol = bcmgenet_get_wol, .set_wol = bcmgenet_set_wol, + .get_eee = bcmgenet_get_eee, + .set_eee = bcmgenet_set_eee, + .nway_reset = bcmgenet_nway_reset, }; /* Power down the unimac, based on mode. */ @@ -989,6 +1087,7 @@ static int bcmgenet_xmit_single(struct net_device *dev, mapping = dma_map_single(kdev, skb->data, skb_len, DMA_TO_DEVICE); ret = dma_mapping_error(kdev, mapping); if (ret) { + priv->mib.tx_dma_failed++; netif_err(priv, tx_err, dev, "Tx DMA map failed\n"); dev_kfree_skb(skb); return ret; @@ -1035,6 +1134,7 @@ static int bcmgenet_xmit_frag(struct net_device *dev, skb_frag_size(frag), DMA_TO_DEVICE); ret = dma_mapping_error(kdev, mapping); if (ret) { + priv->mib.tx_dma_failed++; netif_err(priv, tx_err, dev, "%s: Tx DMA map failed\n", __func__); return ret; @@ -1231,6 +1331,7 @@ static int bcmgenet_rx_refill(struct bcmgenet_priv *priv, struct enet_cb *cb) priv->rx_buf_len, DMA_FROM_DEVICE); ret = dma_mapping_error(kdev, mapping); if (ret) { + priv->mib.rx_dma_failed++; bcmgenet_free_cb(cb); netif_err(priv, rx_err, priv->dev, "%s DMA map failed\n", __func__); @@ -1397,8 +1498,10 @@ static unsigned int bcmgenet_desc_rx(struct bcmgenet_priv *priv, /* refill RX path on the current control block */ refill: err = bcmgenet_rx_refill(priv, cb); - if (err) + if (err) { + priv->mib.alloc_rx_buff_failed++; netif_err(priv, rx_err, dev, "Rx refill failed\n"); + } rxpktprocessed++; priv->rx_read_ptr++; @@ -2577,6 +2680,12 @@ static int bcmgenet_probe(struct platform_device *pdev) if (IS_ERR(priv->clk_wol)) dev_warn(&priv->pdev->dev, "failed to get enet-wol clock\n"); + priv->clk_eee = devm_clk_get(&priv->pdev->dev, "enet-eee"); + if (IS_ERR(priv->clk_eee)) { + dev_warn(&priv->pdev->dev, "failed to get enet-eee clock\n"); + priv->clk_eee = NULL; + } + err = reset_umac(priv); if (err) goto err_clk_disable; @@ -2727,6 +2836,9 @@ static int bcmgenet_resume(struct device *d) phy_resume(priv->phydev); + if (priv->eee.eee_enabled) + bcmgenet_eee_enable_set(dev, true); + bcmgenet_netif_start(dev); return 0; |