From: Brandeburg, Jesse Date: Mon, 14 Feb 2011 17:05:02 +0000 (-0800) Subject: PCI: remove quirk for pre-production systems X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b99af4b002e4908d1a5cdaf424529bdf1dc69768;p=mv-sheeva.git PCI: remove quirk for pre-production systems Revert commit 7eb93b175d4de9438a4b0af3a94a112cb5266944 Author: Yu Zhao Date: Fri Apr 3 15:18:11 2009 +0800 PCI: SR-IOV quirk for Intel 82576 NIC If BIOS doesn't allocate resources for the SR-IOV BARs, zero the Flash BAR and program the SR-IOV BARs to use the old Flash Memory Space. Please refer to Intel 82576 Gigabit Ethernet Controller Datasheet section 7.9.2.14.2 for details. http://download.intel.com/design/network/datashts/82576_Datasheet.pdf Signed-off-by: Yu Zhao Signed-off-by: Jesse Barnes This quirk was added before SR-IOV was in production and now all machines that originally had this issue alreayd have bios updates to correct the issue. The quirk itself is no longer needed and in fact causes bugs if run. Remove it. Signed-off-by: Jesse Brandeburg CC: Yu Zhao CC: Jesse Barnes Signed-off-by: Jesse Barnes --- diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 53a786fd0d4..ff01bfb3cc2 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -2618,58 +2618,6 @@ DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x4375, #endif /* CONFIG_PCI_MSI */ -#ifdef CONFIG_PCI_IOV - -/* - * For Intel 82576 SR-IOV NIC, if BIOS doesn't allocate resources for the - * SR-IOV BARs, zero the Flash BAR and program the SR-IOV BARs to use the - * old Flash Memory Space. - */ -static void __devinit quirk_i82576_sriov(struct pci_dev *dev) -{ - int pos, flags; - u32 bar, start, size; - - if (PAGE_SIZE > 0x10000) - return; - - flags = pci_resource_flags(dev, 0); - if ((flags & PCI_BASE_ADDRESS_SPACE) != - PCI_BASE_ADDRESS_SPACE_MEMORY || - (flags & PCI_BASE_ADDRESS_MEM_TYPE_MASK) != - PCI_BASE_ADDRESS_MEM_TYPE_32) - return; - - pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_SRIOV); - if (!pos) - return; - - pci_read_config_dword(dev, pos + PCI_SRIOV_BAR, &bar); - if (bar & PCI_BASE_ADDRESS_MEM_MASK) - return; - - start = pci_resource_start(dev, 1); - size = pci_resource_len(dev, 1); - if (!start || size != 0x400000 || start & (size - 1)) - return; - - pci_resource_flags(dev, 1) = 0; - pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, 0); - pci_write_config_dword(dev, pos + PCI_SRIOV_BAR, start); - pci_write_config_dword(dev, pos + PCI_SRIOV_BAR + 12, start + size / 2); - - dev_info(&dev->dev, "use Flash Memory Space for SR-IOV BARs\n"); -} -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x10c9, quirk_i82576_sriov); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x10e6, quirk_i82576_sriov); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x10e7, quirk_i82576_sriov); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x10e8, quirk_i82576_sriov); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x150a, quirk_i82576_sriov); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x150d, quirk_i82576_sriov); -DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x1518, quirk_i82576_sriov); - -#endif /* CONFIG_PCI_IOV */ - /* Allow manual resource allocation for PCI hotplug bridges * via pci=hpmemsize=nnM and pci=hpiosize=nnM parameters. For * some PCI-PCI hotplug bridges, like PLX 6254 (former HINT HB6),