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| author | Brandeburg, Jesse <jesse.brandeburg@intel.com> | 2011-02-14 18:05:02 +0100 |
|---|---|---|
| committer | Jesse Barnes <jbarnes@virtuousgeek.org> | 2011-02-16 20:45:46 +0100 |
| commit | b99af4b002e4908d1a5cdaf424529bdf1dc69768 (patch) | |
| tree | d3644a8c64d0a43b5b319a036c73a21c91546248 /drivers/pci/quirks.c | |
| parent | PCI: Avoid potential NULL pointer dereference in pci_scan_bridge (diff) | |
| download | linux-b99af4b002e4908d1a5cdaf424529bdf1dc69768.tar.xz linux-b99af4b002e4908d1a5cdaf424529bdf1dc69768.zip | |
PCI: remove quirk for pre-production systems
Revert commit 7eb93b175d4de9438a4b0af3a94a112cb5266944
Author: Yu Zhao <yu.zhao@intel.com>
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 <yu.zhao@intel.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
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 <jesse.brandeburg@intel.com>
CC: Yu Zhao <yu.zhao@intel.com>
CC: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Diffstat (limited to 'drivers/pci/quirks.c')
| -rw-r--r-- | drivers/pci/quirks.c | 52 |
1 files changed, 0 insertions, 52 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 53a786fd0d40..ff01bfb3cc29 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), |