staging: slicoss Use pci_set_consistent_dma_mask.
Use pci_set_consistent_dma_mask() in the case of 64-bit consistent allocations.
Signed-off-by: Denis Kirjanov <kirjanov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/staging/slicoss/slicoss.c b/drivers/staging/slicoss/slicoss.c
index aefe3fe..09a9d75 100644
--- a/drivers/staging/slicoss/slicoss.c
+++ b/drivers/staging/slicoss/slicoss.c
@@ -366,6 +366,7 @@
ulong mmio_start = 0;
ulong mmio_len = 0;
struct sliccard *card = NULL;
+ int pci_using_dac = 0;
slic_global.dynamic_intagg = dynamic_intagg;
@@ -379,16 +380,26 @@
printk(KERN_DEBUG "%s\n", slic_proc_version);
}
- err = pci_set_dma_mask(pcidev, DMA_BIT_MASK(64));
- if (err) {
- err = pci_set_dma_mask(pcidev, DMA_BIT_MASK(32));
- if (err)
+ if (!pci_set_dma_mask(pcidev, DMA_BIT_MASK(64))) {
+ pci_using_dac = 1;
+ if (pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(64))) {
+ dev_err(&pcidev->dev, "unable to obtain 64-bit DMA for "
+ "consistent allocations\n");
goto err_out_disable_pci;
+ }
+ } else if (pci_set_dma_mask(pcidev, DMA_BIT_MASK(32))) {
+ pci_using_dac = 0;
+ pci_set_consistent_dma_mask(pcidev, DMA_BIT_MASK(32));
+ } else {
+ dev_err(&pcidev->dev, "no usable DMA configuration\n");
+ goto err_out_disable_pci;
}
err = pci_request_regions(pcidev, DRV_NAME);
- if (err)
+ if (err) {
+ dev_err(&pcidev->dev, "can't obtain PCI resources\n");
goto err_out_disable_pci;
+ }
pci_set_master(pcidev);
@@ -404,6 +415,8 @@
adapter = netdev_priv(netdev);
adapter->netdev = netdev;
adapter->pcidev = pcidev;
+ if (pci_using_dac)
+ netdev->features |= NETIF_F_HIGHDMA;
mmio_start = pci_resource_start(pcidev, 0);
mmio_len = pci_resource_len(pcidev, 0);