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a8ccf8a6 AD |
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 provde | |
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 | ||
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 | ||
41 | static int __init pci_pf_stub_init(void) | |
42 | { | |
43 | return pci_register_driver(&pf_stub_driver); | |
44 | } | |
45 | ||
46 | static void __exit pci_pf_stub_exit(void) | |
47 | { | |
48 | pci_unregister_driver(&pf_stub_driver); | |
49 | } | |
50 | ||
51 | module_init(pci_pf_stub_init); | |
52 | module_exit(pci_pf_stub_exit); | |
53 | ||
54 | MODULE_LICENSE("GPL"); |