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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/pci/pci-pf-stub.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/pci/pci-pf-stub.c')
-rw-r--r--drivers/pci/pci-pf-stub.c42
1 files changed, 42 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..45855a5e9
--- /dev/null
+++ b/drivers/pci/pci-pf-stub.c
@@ -0,0 +1,42 @@
+// 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,
+};
+module_pci_driver(pf_stub_driver);
+
+MODULE_LICENSE("GPL");