diff options
Diffstat (limited to 'drivers/pci/pci-pf-stub.c')
-rw-r--r-- | drivers/pci/pci-pf-stub.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/pci/pci-pf-stub.c b/drivers/pci/pci-pf-stub.c new file mode 100644 index 000000000..9795649fc --- /dev/null +++ b/drivers/pci/pci-pf-stub.c @@ -0,0 +1,54 @@ +// SPDX-License-Identifier: GPL-2.0 +/* pci-pf-stub - simple stub driver for PCI SR-IOV PF device + * + * This driver is meant to act as a "whitelist" for devices that provde + * SR-IOV functionality while at the same time not actually needing a + * driver of their own. + */ + +#include <linux/module.h> +#include <linux/pci.h> + +/** + * pci_pf_stub_whitelist - White list of devices to bind pci-pf-stub onto + * + * This table provides the list of IDs this driver is supposed to bind + * onto. You could think of this as a list of "quirked" devices where we + * are adding support for SR-IOV here since there are no other drivers + * that they would be running under. + */ +static const struct pci_device_id pci_pf_stub_whitelist[] = { + { PCI_VDEVICE(AMAZON, 0x0053) }, + /* required last entry */ + { 0 } +}; +MODULE_DEVICE_TABLE(pci, pci_pf_stub_whitelist); + +static int pci_pf_stub_probe(struct pci_dev *dev, + const struct pci_device_id *id) +{ + pci_info(dev, "claimed by pci-pf-stub\n"); + return 0; +} + +static struct pci_driver pf_stub_driver = { + .name = "pci-pf-stub", + .id_table = pci_pf_stub_whitelist, + .probe = pci_pf_stub_probe, + .sriov_configure = pci_sriov_configure_simple, +}; + +static int __init pci_pf_stub_init(void) +{ + return pci_register_driver(&pf_stub_driver); +} + +static void __exit pci_pf_stub_exit(void) +{ + pci_unregister_driver(&pf_stub_driver); +} + +module_init(pci_pf_stub_init); +module_exit(pci_pf_stub_exit); + +MODULE_LICENSE("GPL"); |