USB: xHCI: Supporting MSI/MSI-X
Enable MSI/MSI-X supporting in xhci driver.
Provide the mechanism to fall back using MSI and Legacy IRQs
if MSI-X IRQs register failed.
Signed-off-by: Dong Nguyen <Dong.Nguyen@amd.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>,
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 6c7e343..5bc03d1 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1130,7 +1130,7 @@
int page_size;
/* Valid values are 12 to 20, inclusive */
int page_shift;
- /* only one MSI vector for now, but might need more later */
+ /* msi-x vectors */
int msix_count;
struct msix_entry *msix_entries;
/* data structures */