From aff68a5a621e2569d126b817d0d42f658df524bf Mon Sep 17 00:00:00 2001 From: Sebastian Ott Date: Fri, 21 Dec 2018 15:14:19 +0100 Subject: PCI/IOV: Add flag so platforms can skip VF scanning Provide a flag to skip scanning for new VFs after SR-IOV enablement. This can be set by implementations for which the VFs are already reported by other means. Signed-off-by: Sebastian Ott Signed-off-by: Bjorn Helgaas Reviewed-by: Christoph Hellwig --- drivers/pci/iov.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/pci/iov.c') diff --git a/drivers/pci/iov.c b/drivers/pci/iov.c index 408db232a328..3aa115ed3a65 100644 --- a/drivers/pci/iov.c +++ b/drivers/pci/iov.c @@ -257,6 +257,9 @@ static int sriov_add_vfs(struct pci_dev *dev, u16 num_vfs) unsigned int i; int rc; + if (dev->no_vf_scan) + return 0; + for (i = 0; i < num_vfs; i++) { rc = pci_iov_add_virtfn(dev, i); if (rc) @@ -385,6 +388,9 @@ static void sriov_del_vfs(struct pci_dev *dev) struct pci_sriov *iov = dev->sriov; int i; + if (dev->no_vf_scan) + return; + for (i = 0; i < iov->num_VFs; i++) pci_iov_remove_virtfn(dev, i); } -- cgit v1.2.3