Messages in this thread Patch in this message | | | From | Konrad Rzeszutek Wilk <> | Subject | [RFC PATCH 4/5] xen/pciback: Move the FLR code to a function. | Date | Fri, 13 Dec 2013 11:09:37 -0500 |
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Moving the bulk of the code its own function to aid in making the 'xen/pciback: PCI reset slot or bus' easier.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> --- drivers/xen/xen-pciback/pci_stub.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/drivers/xen/xen-pciback/pci_stub.c b/drivers/xen/xen-pciback/pci_stub.c index b6a856f..4b450c5 100644 --- a/drivers/xen/xen-pciback/pci_stub.c +++ b/drivers/xen/xen-pciback/pci_stub.c @@ -242,6 +242,24 @@ struct pci_dev *pcistub_get_pci_dev(struct xen_pcibk_device *pdev, return found_dev; } +void pcistub_reset_pci_dev(struct pci_dev *dev) +{ + /* This is OK - we are running from workqueue context + * and want to inhibit the user from fiddling with 'reset' + */ + + dev_dbg(&dev->dev, "resetting (FLR, D3, etc) the device\n"); + + pci_reset_function(dev); + pci_restore_state(dev); + + /* This disables the device. */ + xen_pcibk_reset_device(dev); + + /* And cleanup up our emulated fields. */ + xen_pcibk_config_reset_dev(dev); +} + void pcistub_put_pci_dev(struct pci_dev *dev) { struct pcistub_device *psdev, *found_psdev = NULL; -- 1.8.3.1
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