diff options
Diffstat (limited to 'drivers/net/natsemi.c')
| -rw-r--r-- | drivers/net/natsemi.c | 35 |
1 files changed, 30 insertions, 5 deletions
diff --git a/drivers/net/natsemi.c b/drivers/net/natsemi.c index ffa0afd2eddc..4e21f5510b90 100644 --- a/drivers/net/natsemi.c +++ b/drivers/net/natsemi.c @@ -568,6 +568,8 @@ struct netdev_private { u32 intr_status; /* Do not touch the nic registers */ int hands_off; + /* Don't pay attention to the reported link state. */ + int ignore_phy; /* external phy that is used: only valid if dev->if_port != PORT_TP */ int mii; int phy_addr_external; @@ -696,7 +698,10 @@ static void __devinit natsemi_init_media (struct net_device *dev) struct netdev_private *np = netdev_priv(dev); u32 tmp; - netif_carrier_off(dev); + if (np->ignore_phy) + netif_carrier_on(dev); + else + netif_carrier_off(dev); /* get the initial settings from hardware */ tmp = mdio_read(dev, MII_BMCR); @@ -806,8 +811,10 @@ static int __devinit natsemi_probe1 (struct pci_dev *pdev, np->hands_off = 0; np->intr_status = 0; np->eeprom_size = natsemi_pci_info[chip_idx].eeprom_size; + np->ignore_phy = 0; /* Initial port: + * - If configured to ignore the PHY set up for external. * - If the nic was configured to use an external phy and if find_mii * finds a phy: use external port, first phy that replies. * - Otherwise: internal port. @@ -815,7 +822,7 @@ static int __devinit natsemi_probe1 (struct pci_dev *pdev, * The address would be used to access a phy over the mii bus, but * the internal phy is accessed through mapped registers. */ - if (readl(ioaddr + ChipConfig) & CfgExtPhy) + if (np->ignore_phy || readl(ioaddr + ChipConfig) & CfgExtPhy) dev->if_port = PORT_MII; else dev->if_port = PORT_TP; @@ -825,7 +832,9 @@ static int __devinit natsemi_probe1 (struct pci_dev *pdev, if (dev->if_port != PORT_TP) { np->phy_addr_external = find_mii(dev); - if (np->phy_addr_external == PHY_ADDR_NONE) { + /* If we're ignoring the PHY it doesn't matter if we can't + * find one. */ + if (!np->ignore_phy && np->phy_addr_external == PHY_ADDR_NONE) { dev->if_port = PORT_TP; np->phy_addr_external = PHY_ADDR_INTERNAL; } @@ -891,6 +900,8 @@ static int __devinit natsemi_probe1 (struct pci_dev *pdev, printk("%02x, IRQ %d", dev->dev_addr[i], irq); if (dev->if_port == PORT_TP) printk(", port TP.\n"); + else if (np->ignore_phy) + printk(", port MII, ignoring PHY\n"); else printk(", port MII, phy ad %d.\n", np->phy_addr_external); } @@ -1571,9 +1582,13 @@ static void check_link(struct net_device *dev) { struct netdev_private *np = netdev_priv(dev); void __iomem * ioaddr = ns_ioaddr(dev); - int duplex; + int duplex = np->duplex; u16 bmsr; + /* If we are ignoring the PHY then don't try reading it. */ + if (np->ignore_phy) + goto propagate_state; + /* The link status field is latched: it remains low after a temporary * link failure until it's read. We need the current link status, * thus read twice. @@ -1585,7 +1600,7 @@ static void check_link(struct net_device *dev) if (netif_carrier_ok(dev)) { if (netif_msg_link(np)) printk(KERN_NOTICE "%s: link down.\n", - dev->name); + dev->name); netif_carrier_off(dev); undo_cable_magic(dev); } @@ -1609,6 +1624,7 @@ static void check_link(struct net_device *dev) duplex = 1; } +propagate_state: /* if duplex is set then bit 28 must be set, too */ if (duplex ^ !!(np->rx_config & RxAcceptTx)) { if (netif_msg_link(np)) @@ -2819,6 +2835,15 @@ static int netdev_set_ecmd(struct net_device *dev, struct ethtool_cmd *ecmd) } /* + * If we're ignoring the PHY then autoneg and the internal + * transciever are really not going to work so don't let the + * user select them. + */ + if (np->ignore_phy && (ecmd->autoneg == AUTONEG_ENABLE || + ecmd->port == PORT_TP)) + return -EINVAL; + + /* * maxtxpkt, maxrxpkt: ignored for now. * * transceiver: |