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authorBryant G. Ly <bryantly@linux.vnet.ibm.com>2017-11-09 08:00:35 -0600
committerMichael Ellerman <mpe@ellerman.id.au>2017-12-11 13:03:36 +1100
commit608c0d8804ef3ca4cda8ec6ad914e47deb283d7b (patch)
tree72f7ed3e570c6a926601621f1af161ed65685fd0 /drivers/pci/iov.c
parentdae7253f9f78a731755ca20c66b2d2c40b86baea (diff)
downloadlinux-rt-608c0d8804ef3ca4cda8ec6ad914e47deb283d7b.tar.gz
PCI/IOV: Add pci_vf_drivers_autoprobe() interface
Add a pci_vf_drivers_autoprobe() interface. Setting autoprobe to false on the PF prevents drivers from binding to VFs when they are enabled. Signed-off-by: Bryant G. Ly <bryantly@linux.vnet.ibm.com> Signed-off-by: Juan J. Alvarez <jjalvare@linux.vnet.ibm.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Russell Currey <ruscur@russell.cc> Reviewed-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/pci/iov.c')
-rw-r--r--drivers/pci/iov.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c
index 6bacb8995e96..0b7b5da63d4e 100644
--- a/drivers/pci/iov.c
+++ b/drivers/pci/iov.c
@@ -636,6 +636,17 @@ void pci_restore_iov_state(struct pci_dev *dev)
}
/**
+ * pci_vf_drivers_autoprobe - set PF property drivers_autoprobe for VFs
+ * @dev: the PCI device
+ * @auto_probe: set VF drivers auto probe flag
+ */
+void pci_vf_drivers_autoprobe(struct pci_dev *dev, bool auto_probe)
+{
+ if (dev->is_physfn)
+ dev->sriov->drivers_autoprobe = auto_probe;
+}
+
+/**
* pci_iov_bus_range - find bus range used by Virtual Function
* @bus: the PCI bus
*