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path: root/drivers/dma/ioat/dma.c
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Diffstat (limited to 'drivers/dma/ioat/dma.c')
-rw-r--r--drivers/dma/ioat/dma.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/dma/ioat/dma.c b/drivers/dma/ioat/dma.c
index 1879a5942bfc..17a2393b3e25 100644
--- a/drivers/dma/ioat/dma.c
+++ b/drivers/dma/ioat/dma.c
@@ -892,7 +892,7 @@ MODULE_PARM_DESC(ioat_interrupt_style,
* ioat_dma_setup_interrupts - setup interrupt handler
* @device: ioat device
*/
-static int ioat_dma_setup_interrupts(struct ioatdma_device *device)
+int ioat_dma_setup_interrupts(struct ioatdma_device *device)
{
struct ioat_chan_common *chan;
struct pci_dev *pdev = device->pdev;
@@ -941,6 +941,7 @@ msix:
}
}
intrctrl |= IOAT_INTRCTRL_MSIX_VECTOR_CONTROL;
+ device->irq_mode = IOAT_MSIX;
goto done;
msix_single_vector:
@@ -956,6 +957,7 @@ msix_single_vector:
pci_disable_msix(pdev);
goto msi;
}
+ device->irq_mode = IOAT_MSIX_SINGLE;
goto done;
msi:
@@ -969,6 +971,7 @@ msi:
pci_disable_msi(pdev);
goto intx;
}
+ device->irq_mode = IOAT_MSIX;
goto done;
intx:
@@ -977,6 +980,7 @@ intx:
if (err)
goto err_no_irq;
+ device->irq_mode = IOAT_INTX;
done:
if (device->intr_quirk)
device->intr_quirk(device);
@@ -987,9 +991,11 @@ done:
err_no_irq:
/* Disable all interrupt generation */
writeb(0, device->reg_base + IOAT_INTRCTRL_OFFSET);
+ device->irq_mode = IOAT_NOIRQ;
dev_err(dev, "no usable interrupts\n");
return err;
}
+EXPORT_SYMBOL(ioat_dma_setup_interrupts);
static void ioat_disable_interrupts(struct ioatdma_device *device)
{