[PATCH] 2.5.24 : drivers/scsi/dpt_i2o.c (DMA Rev. 2)

[Frank Davis]

Hello all,
  I've added the check for 64-bit DMA addressing per Rick's comment. 
Regards,
Frank

--- drivers/scsi/dpt_i2o.c.old	Mon Jun 10 12:18:59 2002
+++ drivers/scsi/dpt_i2o.c	Mon Jun 24 13:18:03 2002
@@ -879,6 +879,21 @@
 	if(pci_enable_device(pDev)) {
 		return -EINVAL;
 	}
+	int using_dac;
+	
+	if(!pci_set_dma_mask(pDev, 0xffffffffffffffff))
+	{	
+		using_dac = 1;
+		printk("dpt_i2o : Using 64-bit DMA addressing\n");
+
+	}else if(!pci_set_dma_mask(pDev, 0xffffffff))
+	{
+		using_dac = 0;
+		printk("dpt_i2o : Using 32-bit DMA addressing\n");
+
+	}else {
+		printk(KERN_WARNING "dpt_i2o : No suitable DMA available\n");
+	}	
 	pci_set_master(pDev);
 
 	base_addr0_phys = pci_resource_start(pDev,0);