WSL2-Linux-Kernel/drivers/pci/pci-pf-stub.c

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1.4 KiB
C
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// 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 provide
* 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");