Commit c82cfe15 authored by Yi Lai's avatar Yi Lai Committed by Alex Williamson
Browse files

vfio: selftests: Support DMR and GNR-D DSA devices 



Currently, the VFIO DSA driver test only supports the SPR DSA device ID.
Attempting to run the test on newer platforms like DMR or GNR-D results
in a "No driver found" error, causing the test to be skipped.

Refactor dsa_probe() to use a switch statement for checking device IDs.
This improves maintainability and makes it easier to add new device IDs
in the future.

Add the following DSA device IDs to the supported list:
PCI_DEVICE_ID_INTEL_DSA_DMR  (0x1212)
PCI_DEVICE_ID_INTEL_DSA_GNRD (0x11fb)

Signed-off-by: default avatarYi Lai <yi1.lai@intel.com>
Reviewed-by: default avatarDavid Matlack <dmatlack@google.com>
Link: https://lore.kernel.org/r/20260320010930.481380-1-yi1.lai@intel.com


Signed-off-by: default avatarAlex Williamson <alex@shazbot.org>
parent 1347a742

tools/testing/selftests/vfio/lib/drivers/dsa/dsa.c

+13 −2
Original line number Diff line number Diff line
@@ -65,10 +65,21 @@ static bool dsa_int_handle_request_required(struct vfio_pci_device *device) 


static int dsa_probe(struct vfio_pci_device *device)

{

	if (!vfio_pci_device_match(device, PCI_VENDOR_ID_INTEL,

				   PCI_DEVICE_ID_INTEL_DSA_SPR0))

	const u16 vendor_id = vfio_pci_config_readw(device, PCI_VENDOR_ID);

	const u16 device_id = vfio_pci_config_readw(device, PCI_DEVICE_ID);



	if (vendor_id != PCI_VENDOR_ID_INTEL)

		return -EINVAL;



	switch (device_id) {

	case PCI_DEVICE_ID_INTEL_DSA_SPR0:

	case PCI_DEVICE_ID_INTEL_DSA_DMR:

	case PCI_DEVICE_ID_INTEL_DSA_GNRD:

		break;

	default:

		return -EINVAL;

	}



	if (dsa_int_handle_request_required(device)) {

		dev_err(device, "Device requires requesting interrupt handles\n");

		return -EINVAL;