scsi: aacraid: Fix DMAR issues with iommu=pt
The driver changed the DMA consistent map after consistent memory was
allocated, this invalidated the IOMMU identity mapping. The fix was to
make sure that we set the DMA consistent mask setting once depending on
the controller card.
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 43d8838..707ee2f 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -2071,20 +2071,15 @@ int aac_get_adapter_info(struct aac_dev* dev)
expose_physicals = 0;
}
- if(dev->dac_support != 0) {
- if (!pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(64)) &&
- !pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(64))) {
+ if (dev->dac_support) {
+ if (!pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(64))) {
if (!dev->in_reset)
- printk(KERN_INFO"%s%d: 64 Bit DAC enabled\n",
- dev->name, dev->id);
- } else if (!pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(32)) &&
- !pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(32))) {
- printk(KERN_INFO"%s%d: DMA mask set failed, 64 Bit DAC disabled\n",
- dev->name, dev->id);
+ dev_info(&dev->pdev->dev, "64 Bit DAC enabled\n");
+ } else if (!pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(32))) {
+ dev_info(&dev->pdev->dev, "DMA mask set failed, 64 Bit DAC disabled\n");
dev->dac_support = 0;
} else {
- printk(KERN_WARNING"%s%d: No suitable DMA available.\n",
- dev->name, dev->id);
+ dev_info(&dev->pdev->dev, "No suitable DMA available\n");
rcode = -ENOMEM;
}
}