xref: /linux/drivers/pci/pci-pf-stub.c (revision a1ff5a7d78a036d6c2178ee5acd6ba4946243800)
1 // SPDX-License-Identifier: GPL-2.0
2 /* pci-pf-stub - simple stub driver for PCI SR-IOV PF device
3  *
4  * This driver is meant to act as a "whitelist" for devices that provide
5  * SR-IOV functionality while at the same time not actually needing a
6  * driver of their own.
7  */
8 
9 #include <linux/module.h>
10 #include <linux/pci.h>
11 
12 /*
13  * pci_pf_stub_whitelist - White list of devices to bind pci-pf-stub onto
14  *
15  * This table provides the list of IDs this driver is supposed to bind
16  * onto.  You could think of this as a list of "quirked" devices where we
17  * are adding support for SR-IOV here since there are no other drivers
18  * that they would be running under.
19  */
20 static const struct pci_device_id pci_pf_stub_whitelist[] = {
21 	{ PCI_VDEVICE(AMAZON, 0x0053) },
22 	/* required last entry */
23 	{ 0 }
24 };
25 MODULE_DEVICE_TABLE(pci, pci_pf_stub_whitelist);
26 
pci_pf_stub_probe(struct pci_dev * dev,const struct pci_device_id * id)27 static int pci_pf_stub_probe(struct pci_dev *dev,
28 			     const struct pci_device_id *id)
29 {
30 	pci_info(dev, "claimed by pci-pf-stub\n");
31 	return 0;
32 }
33 
34 static struct pci_driver pf_stub_driver = {
35 	.name			= "pci-pf-stub",
36 	.id_table		= pci_pf_stub_whitelist,
37 	.probe			= pci_pf_stub_probe,
38 	.sriov_configure	= pci_sriov_configure_simple,
39 };
40 module_pci_driver(pf_stub_driver);
41 
42 MODULE_DESCRIPTION("SR-IOV PF stub driver with no functionality");
43 MODULE_LICENSE("GPL");
44