Implement support for PCI suspend, resume and shutdown events in the

LinuxKPI. Fix a few spaces to tabs. Bump the FreeBSD version to force
recompilation of existing KMODs.

MFC after:	1 week
Sponsored by:	Mellanox Technologies

2 files changed, 49 insertions, 2 deletions

diff --git a/sys/compat/linuxkpi/common/include/linux/pci.h b/sys/compat/linuxkpi/common/include/linux/pci.h
index 54ea99c..0e6dbfd 100644
--- a/sys/compat/linuxkpi/common/include/linux/pci.h
+++ b/sys/compat/linuxkpi/common/include/linux/pci.h
@@ -129,8 +129,9 @@ struct pci_driver {
 	const struct pci_device_id		*id_table;
 	int  (*probe)(struct pci_dev *dev, const struct pci_device_id *id);
 	void (*remove)(struct pci_dev *dev);
-        int  (*suspend) (struct pci_dev *dev, pm_message_t state);      /* Device suspended */
-        int  (*resume) (struct pci_dev *dev);                   /* Device woken up */
+	int  (*suspend) (struct pci_dev *dev, pm_message_t state);	/* Device suspended */
+	int  (*resume) (struct pci_dev *dev);		/* Device woken up */
+	void (*shutdown) (struct pci_dev *dev);		/* Device shutdown */
 	driver_t			driver;
 	devclass_t			bsdclass;
         const struct pci_error_handlers       *err_handler;
diff --git a/sys/compat/linuxkpi/common/src/linux_pci.c b/sys/compat/linuxkpi/common/src/linux_pci.c
index 7c49a54..74d4f77 100644
--- a/sys/compat/linuxkpi/common/src/linux_pci.c
+++ b/sys/compat/linuxkpi/common/src/linux_pci.c
@@ -61,11 +61,17 @@ __FBSDID("$FreeBSD$");
 static device_probe_t linux_pci_probe;
 static device_attach_t linux_pci_attach;
 static device_detach_t linux_pci_detach;
+static device_suspend_t linux_pci_suspend;
+static device_resume_t linux_pci_resume;
+static device_shutdown_t linux_pci_shutdown;
 
 static device_method_t pci_methods[] = {
 	DEVMETHOD(device_probe, linux_pci_probe),
 	DEVMETHOD(device_attach, linux_pci_attach),
 	DEVMETHOD(device_detach, linux_pci_detach),
+	DEVMETHOD(device_suspend, linux_pci_suspend),
+	DEVMETHOD(device_resume, linux_pci_resume),
+	DEVMETHOD(device_shutdown, linux_pci_shutdown),
 	DEVMETHOD_END
 };
 
@@ -169,6 +175,46 @@ linux_pci_detach(device_t dev)
 	return (0);
 }
 
+static int
+linux_pci_suspend(device_t dev)
+{
+	struct pm_message pm = { };
+	struct pci_dev *pdev;
+	int err;
+
+	pdev = device_get_softc(dev);
+	if (pdev->pdrv->suspend != NULL)
+		err = -pdev->pdrv->suspend(pdev, pm);
+	else
+		err = 0;
+	return (err);
+}
+
+static int
+linux_pci_resume(device_t dev)
+{
+	struct pci_dev *pdev;
+	int err;
+
+	pdev = device_get_softc(dev);
+	if (pdev->pdrv->resume != NULL)
+		err = -pdev->pdrv->resume(pdev);
+	else
+		err = 0;
+	return (err);
+}
+
+static int
+linux_pci_shutdown(device_t dev)
+{
+	struct pci_dev *pdev;
+
+	pdev = device_get_softc(dev);
+	if (pdev->pdrv->shutdown != NULL)
+		pdev->pdrv->shutdown(pdev);
+	return (0);
+}
+
 int
 pci_register_driver(struct pci_driver *pdrv)
 {