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| author |   Sebastian Ott <sebott@linux.ibm.com> | 2018-12-21 15:14:19 +0100 |
|---|---|---|
| committer |   Bjorn Helgaas <bhelgaas@google.com> | 2019-01-01 19:04:37 -0600 |
| commit | aff68a5a621e2569d126b817d0d42f658df524bf (patch) | |
| tree | 25493ee845607f4de46651739fcc8b31896ae9fc /drivers/pci/iov.c | |
| parent | PCI/IOV: Factor out sriov_add_vfs() (diff) | |
| download | linux-dev-aff68a5a621e2569d126b817d0d42f658df524bf.tar.xz linux-dev-aff68a5a621e2569d126b817d0d42f658df524bf.zip | |
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 <sebott@linux.ibm.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/pci/iov.c')
| -rw-r--r-- | drivers/pci/iov.c | 6 |
1 files changed, 6 insertions, 0 deletions
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); } |