diff options
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac.h | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c | 6 | ||||
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 93 |
3 files changed, 72 insertions, 29 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h index 9bafa6cf9e8b..a140a8fbf051 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h @@ -72,7 +72,6 @@ struct stmmac_priv { spinlock_t lock; spinlock_t tx_lock; int wolopts; - int wolenabled; int wol_irq; #ifdef CONFIG_STMMAC_TIMER struct stmmac_timer *tm; @@ -80,6 +79,7 @@ struct stmmac_priv { struct plat_stmmacenet_data *plat; struct stmmac_counters mmc; struct dma_features dma_cap; + int hw_cap_support; }; extern int stmmac_mdio_unregister(struct net_device *ndev); diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c index e8eff09bbbd7..0395f9eba801 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c @@ -430,6 +430,12 @@ static int stmmac_set_wol(struct net_device *dev, struct ethtool_wolinfo *wol) struct stmmac_priv *priv = netdev_priv(dev); u32 support = WAKE_MAGIC | WAKE_UCAST; + /* By default almost all GMAC devices support the WoL via + * magic frame but we can disable it if the HW capability + * register shows no support for pmt_magic_frame. */ + if ((priv->hw_cap_support) && (!priv->dma_cap.pmt_magic_frame)) + wol->wolopts &= ~WAKE_MAGIC; + if (!device_can_wakeup(priv->device)) return -EINVAL; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index e079762a796e..7f3ffd3742d8 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -805,8 +805,29 @@ static u32 stmmac_get_synopsys_id(struct stmmac_priv *priv) return 0; } -/* New GMAC chips support a new register to indicate the - * presence of the optional feature/functions. +/** + * stmmac_selec_desc_mode + * @dev : device pointer + * Description: select the Enhanced/Alternate or Normal descriptors */ +static void stmmac_selec_desc_mode(struct stmmac_priv *priv) +{ + if (priv->plat->enh_desc) { + pr_info(" Enhanced/Alternate descriptors\n"); + priv->hw->desc = &enh_desc_ops; + } else { + pr_info(" Normal descriptors\n"); + priv->hw->desc = &ndesc_ops; + } +} + +/** + * stmmac_get_hw_features + * @priv : private device pointer + * Description: + * new GMAC chip generations have a new register to indicate the + * presence of the optional feature/functions. + * This can be also used to override the value passed through the + * platform and necessary for old MAC10/100 and GMAC chips. */ static int stmmac_get_hw_features(struct stmmac_priv *priv) { @@ -827,7 +848,7 @@ static int stmmac_get_hw_features(struct stmmac_priv *priv) (hw_cap & DMA_HW_FEAT_RWKSEL) >> 9; priv->dma_cap.pmt_magic_frame = (hw_cap & DMA_HW_FEAT_MGKSEL) >> 10; - /*MMC*/ + /* MMC */ priv->dma_cap.rmon = (hw_cap & DMA_HW_FEAT_MMCSEL) >> 11; /* IEEE 1588-2002*/ priv->dma_cap.time_stamp = @@ -855,8 +876,7 @@ static int stmmac_get_hw_features(struct stmmac_priv *priv) priv->dma_cap.enh_desc = (hw_cap & DMA_HW_FEAT_ENHDESSEL) >> 24; - } else - pr_debug("\tNo HW DMA feature register supported"); + } return hw_cap; } @@ -911,6 +931,44 @@ static int stmmac_open(struct net_device *dev) goto open_error; } + stmmac_get_synopsys_id(priv); + + priv->hw_cap_support = stmmac_get_hw_features(priv); + + if (priv->hw_cap_support) { + pr_info(" Support DMA HW capability register"); + + /* We can override some gmac/dma configuration fields: e.g. + * enh_desc, tx_coe (e.g. that are passed through the + * platform) with the values from the HW capability + * register (if supported). + */ + priv->plat->enh_desc = priv->dma_cap.enh_desc; + priv->plat->tx_coe = priv->dma_cap.tx_coe; + priv->plat->pmt = priv->dma_cap.pmt_remote_wake_up; + + /* By default disable wol on magic frame if not supported */ + if (!priv->dma_cap.pmt_magic_frame) + priv->wolopts &= ~WAKE_MAGIC; + + } else + pr_info(" No HW DMA feature register supported"); + + /* Select the enhnaced/normal descriptor structures */ + stmmac_selec_desc_mode(priv); + + /* PMT module is not integrated in all the MAC devices. */ + if (priv->plat->pmt) { + pr_info(" Remote wake-up capable\n"); + device_set_wakeup_capable(priv->device, 1); + } + + priv->rx_coe = priv->hw->mac->rx_coe(priv->ioaddr); + if (priv->rx_coe) + pr_info(" Checksum Offload Engine supported\n"); + if (priv->plat->tx_coe) + pr_info(" Checksum insertion supported\n"); + /* Create and initialize the TX/RX descriptors chains. */ priv->dma_tx_size = STMMAC_ALIGN(dma_txsize); priv->dma_rx_size = STMMAC_ALIGN(dma_rxsize); @@ -933,15 +991,6 @@ static int stmmac_open(struct net_device *dev) /* Initialize the MAC Core */ priv->hw->mac->core_init(priv->ioaddr); - stmmac_get_synopsys_id(priv); - - stmmac_get_hw_features(priv); - - priv->rx_coe = priv->hw->mac->rx_coe(priv->ioaddr); - if (priv->rx_coe) - pr_info("stmmac: Rx Checksum Offload Engine supported\n"); - if (priv->plat->tx_coe) - pr_info("\tTX Checksum insertion supported\n"); netdev_update_features(dev); /* Request the IRQ lines */ @@ -1556,7 +1605,7 @@ static int stmmac_sysfs_dma_cap_read(struct seq_file *seq, void *v) struct net_device *dev = seq->private; struct stmmac_priv *priv = netdev_priv(dev); - if (!stmmac_get_hw_features(priv)) { + if (!priv->hw_cap_support) { seq_printf(seq, "DMA HW features not supported\n"); return 0; } @@ -1764,12 +1813,6 @@ static int stmmac_mac_device_setup(struct net_device *dev) if (!device) return -ENOMEM; - if (priv->plat->enh_desc) { - device->desc = &enh_desc_ops; - pr_info("\tEnhanced descriptor structure\n"); - } else - device->desc = &ndesc_ops; - priv->hw = device; priv->hw->ring = &ring_mode_ops; @@ -1843,11 +1886,6 @@ static int stmmac_dvr_probe(struct platform_device *pdev) priv->ioaddr = addr; - /* PMT module is not integrated in all the MAC devices. */ - if (plat_dat->pmt) { - pr_info("\tPMT module supported\n"); - device_set_wakeup_capable(&pdev->dev, 1); - } /* * On some platforms e.g. SPEAr the wake up irq differs from the mac irq * The external wake up irq can be passed through the platform code @@ -1860,7 +1898,6 @@ static int stmmac_dvr_probe(struct platform_device *pdev) if (priv->wol_irq == -ENXIO) priv->wol_irq = ndev->irq; - platform_set_drvdata(pdev, ndev); /* Set the I/O base addr */ @@ -1873,7 +1910,7 @@ static int stmmac_dvr_probe(struct platform_device *pdev) goto out_free_ndev; } - /* MAC HW revice detection */ + /* MAC HW device detection */ ret = stmmac_mac_device_setup(ndev); if (ret < 0) goto out_plat_exit; |