From 0e6c9122a6ec96d19f1db61e9750287d86b6829c Mon Sep 17 00:00:00 2001 From: Wei Yang Date: Wed, 25 Mar 2015 16:23:44 +0800 Subject: PCI: Keep individual VF BAR size in struct pci_sriov Currently we don't store the individual VF BAR size. We calculate it when needed by dividing the PF's IOV resource size (which contains space for *all* the VFs) by total_VFs or by reading the BAR in the SR-IOV capability again. Keep the individual VF BAR size in struct pci_sriov.barsz[], add pci_iov_resource_size() to retrieve it, and use that instead of doing the division or reading the SR-IOV capability BAR. [bhelgaas: rename to "barsz[]", simplify barsz[] index computation, remove SR-IOV capability BAR sizing] Signed-off-by: Wei Yang Acked-by: Bjorn Helgaas Signed-off-by: Benjamin Herrenschmidt --- drivers/pci/pci.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/pci/pci.h') diff --git a/drivers/pci/pci.h b/drivers/pci/pci.h index 4091f82239cd..57329645dd01 100644 --- a/drivers/pci/pci.h +++ b/drivers/pci/pci.h @@ -247,6 +247,7 @@ struct pci_sriov { struct pci_dev *dev; /* lowest numbered PF */ struct pci_dev *self; /* this PF */ struct mutex lock; /* lock for VF bus */ + resource_size_t barsz[PCI_SRIOV_NUM_BARS]; /* VF BAR size */ }; #ifdef CONFIG_PCI_ATS -- cgit v1.2.3