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| author | Brandeburg, Jesse <jesse.brandeburg@intel.com> | 2011-02-14 09:05:02 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2011-03-23 13:16:48 -0700 |
| commit | 123079517faa3e2accc731f0f8b9f89bb9b033d6 (patch) | |
| tree | a23035929d262b4a7afbc7ea0f45b692d70a7eee | |
| parent | fa958081e1b2038ce669e2db878ee8df6a63b677 (diff) | |
| download | lwn-123079517faa3e2accc731f0f8b9f89bb9b033d6.tar.gz lwn-123079517faa3e2accc731f0f8b9f89bb9b033d6.zip | |
PCI: remove quirk for pre-production systems
commit b99af4b002e4908d1a5cdaf424529bdf1dc69768 upstream.
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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -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 448393de1227..548fc167b5a5 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -2495,58 +2495,6 @@ 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 */ - static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, struct pci_fixup *end) { |