diff options
Diffstat (limited to 'drivers/net/forcedeth.c')
| -rw-r--r-- | drivers/net/forcedeth.c | 49 |
1 files changed, 41 insertions, 8 deletions
diff --git a/drivers/net/forcedeth.c b/drivers/net/forcedeth.c index 36342230a6d..d4843d014bc 100644 --- a/drivers/net/forcedeth.c +++ b/drivers/net/forcedeth.c @@ -323,8 +323,8 @@ enum { NvRegMIIStatus = 0x180, #define NVREG_MIISTAT_ERROR 0x0001 #define NVREG_MIISTAT_LINKCHANGE 0x0008 -#define NVREG_MIISTAT_MASK 0x000f -#define NVREG_MIISTAT_MASK2 0x000f +#define NVREG_MIISTAT_MASK_RW 0x0007 +#define NVREG_MIISTAT_MASK_ALL 0x000f NvRegMIIMask = 0x184, #define NVREG_MII_LINKCHANGE 0x0008 @@ -624,6 +624,9 @@ union ring_type { #define NV_MSI_X_VECTOR_TX 0x1 #define NV_MSI_X_VECTOR_OTHER 0x2 +#define NV_RESTART_TX 0x1 +#define NV_RESTART_RX 0x2 + /* statistics */ struct nv_ethtool_str { char name[ETH_GSTRING_LEN]; @@ -1061,7 +1064,7 @@ static int mii_rw(struct net_device *dev, int addr, int miireg, int value) u32 reg; int retval; - writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus); + writel(NVREG_MIISTAT_MASK_RW, base + NvRegMIIStatus); reg = readl(base + NvRegMIIControl); if (reg & NVREG_MIICTL_INUSE) { @@ -1432,16 +1435,30 @@ static void nv_mac_reset(struct net_device *dev) { struct fe_priv *np = netdev_priv(dev); u8 __iomem *base = get_hwbase(dev); + u32 temp1, temp2, temp3; dprintk(KERN_DEBUG "%s: nv_mac_reset\n", dev->name); + writel(NVREG_TXRXCTL_BIT2 | NVREG_TXRXCTL_RESET | np->txrxctl_bits, base + NvRegTxRxControl); pci_push(base); + + /* save registers since they will be cleared on reset */ + temp1 = readl(base + NvRegMacAddrA); + temp2 = readl(base + NvRegMacAddrB); + temp3 = readl(base + NvRegTransmitPoll); + writel(NVREG_MAC_RESET_ASSERT, base + NvRegMacReset); pci_push(base); udelay(NV_MAC_RESET_DELAY); writel(0, base + NvRegMacReset); pci_push(base); udelay(NV_MAC_RESET_DELAY); + + /* restore saved registers */ + writel(temp1, base + NvRegMacAddrA); + writel(temp2, base + NvRegMacAddrB); + writel(temp3, base + NvRegTransmitPoll); + writel(NVREG_TXRXCTL_BIT2 | np->txrxctl_bits, base + NvRegTxRxControl); pci_push(base); } @@ -2767,6 +2784,7 @@ static int nv_update_linkspeed(struct net_device *dev) int mii_status; int retval = 0; u32 control_1000, status_1000, phyreg, pause_flags, txreg; + u32 txrxFlags = 0; /* BMSR_LSTATUS is latched, read it twice: * we want the current value. @@ -2862,6 +2880,16 @@ set_speed: np->duplex = newdup; np->linkspeed = newls; + /* The transmitter and receiver must be restarted for safe update */ + if (readl(base + NvRegTransmitterControl) & NVREG_XMITCTL_START) { + txrxFlags |= NV_RESTART_TX; + nv_stop_tx(dev); + } + if (readl(base + NvRegReceiverControl) & NVREG_RCVCTL_START) { + txrxFlags |= NV_RESTART_RX; + nv_stop_rx(dev); + } + if (np->gigabit == PHY_GIGABIT) { phyreg = readl(base + NvRegRandomSeed); phyreg &= ~(0x3FF00); @@ -2950,6 +2978,11 @@ set_speed: } nv_update_pause(dev, pause_flags); + if (txrxFlags & NV_RESTART_TX) + nv_start_tx(dev); + if (txrxFlags & NV_RESTART_RX) + nv_start_rx(dev); + return retval; } @@ -2976,7 +3009,7 @@ static void nv_link_irq(struct net_device *dev) u32 miistat; miistat = readl(base + NvRegMIIStatus); - writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus); + writel(NVREG_MIISTAT_LINKCHANGE, base + NvRegMIIStatus); dprintk(KERN_INFO "%s: link change irq, status 0x%x.\n", dev->name, miistat); if (miistat & (NVREG_MIISTAT_LINKCHANGE)) @@ -4851,7 +4884,7 @@ static int nv_open(struct net_device *dev) writel(0, base + NvRegMIIMask); writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); - writel(NVREG_MIISTAT_MASK2, base + NvRegMIIStatus); + writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus); writel(NVREG_MISC1_FORCE | NVREG_MISC1_HD, base + NvRegMisc1); writel(readl(base + NvRegTransmitterStatus), base + NvRegTransmitterStatus); @@ -4889,7 +4922,7 @@ static int nv_open(struct net_device *dev) nv_disable_hw_interrupts(dev, np->irqmask); pci_push(base); - writel(NVREG_MIISTAT_MASK2, base + NvRegMIIStatus); + writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus); writel(NVREG_IRQSTAT_MASK, base + NvRegIrqStatus); pci_push(base); @@ -4912,7 +4945,7 @@ static int nv_open(struct net_device *dev) { u32 miistat; miistat = readl(base + NvRegMIIStatus); - writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus); + writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus); dprintk(KERN_INFO "startup: got 0x%08x.\n", miistat); } /* set linkspeed to invalid value, thus force nv_update_linkspeed @@ -5280,7 +5313,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i phystate &= ~NVREG_ADAPTCTL_RUNNING; writel(phystate, base + NvRegAdapterControl); } - writel(NVREG_MIISTAT_MASK, base + NvRegMIIStatus); + writel(NVREG_MIISTAT_MASK_ALL, base + NvRegMIIStatus); if (id->driver_data & DEV_HAS_MGMT_UNIT) { /* management unit running on the mac? */ |