myri10ge: set 64bits consistent DMA mask

Set 64bits consistent DMA mask since it improves performance
in some cases. No need to check the return value since it is
not required for the driver to work.
Signed-off-by: Brice Goglin <brice@myri.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

drivers/net/myri10ge/myri10ge.c

@@ -3699,6 +3699,7 @@ static int myri10ge_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 		dev_err(&pdev->dev, "Error %d setting DMA mask\n", status);
 		goto abort_with_netdev;
 	}
+	(void)pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
 	mgp->cmd = dma_alloc_coherent(&pdev->dev, sizeof(*mgp->cmd),
 				      &mgp->cmd_bus, GFP_KERNEL);
 	if (mgp->cmd == NULL)