diff options
| -rw-r--r-- | drivers/net/sk98lin/skge.c | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/drivers/net/sk98lin/skge.c b/drivers/net/sk98lin/skge.c index 3302d644011f..9a879530ef6d 100644 --- a/drivers/net/sk98lin/skge.c +++ b/drivers/net/sk98lin/skge.c @@ -4775,16 +4775,30 @@ static int __devinit skge_probe_one(struct pci_dev *pdev, struct net_device *dev = NULL; static int boards_found = 0; int error = -ENODEV; + int using_dac = 0; char DeviceStr[80]; if (pci_enable_device(pdev)) goto out; /* Configure DMA attributes. */ - if (pci_set_dma_mask(pdev, DMA_64BIT_MASK) && - pci_set_dma_mask(pdev, DMA_32BIT_MASK)) - goto out_disable_device; - + if (sizeof(dma_addr_t) > sizeof(u32) && + !(error = pci_set_dma_mask(pdev, DMA_64BIT_MASK))) { + using_dac = 1; + error = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK); + if (error < 0) { + printk(KERN_ERR "sk98lin %s unable to obtain 64 bit DMA " + "for consistent allocations\n", pci_name(pdev)); + goto out_disable_device; + } + } else { + error = pci_set_dma_mask(pdev, DMA_32BIT_MASK); + if (error) { + printk(KERN_ERR "sk98lin %s no usable DMA configuration\n", + pci_name(pdev)); + goto out_disable_device; + } + } if ((dev = alloc_etherdev(sizeof(DEV_NET))) == NULL) { printk(KERN_ERR "Unable to allocate etherdev " @@ -4843,6 +4857,9 @@ static int __devinit skge_probe_one(struct pci_dev *pdev, #endif } + if (using_dac) + dev->features |= NETIF_F_HIGHDMA; + pAC->Index = boards_found++; if (SkGeBoardInit(dev, pAC)) @@ -4919,6 +4936,9 @@ static int __devinit skge_probe_one(struct pci_dev *pdev, #endif } + if (using_dac) + dev->features |= NETIF_F_HIGHDMA; + if (register_netdev(dev)) { printk(KERN_ERR "sk98lin: Could not register device for seconf port.\n"); free_netdev(dev); |