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    Subject[RFC PATCH 00/14] improve PCIe capabilities registers handling
    Date
    From: Jiang Liu <liuj97@gmail.com>

    As suggested by Bjorn Helgaas and Don Dutile in threads
    http://www.spinics.net/lists/linux-pci/msg15663.html, we could improve access
    to PCIe capabilities register in to way:
    1) cache content of PCIe Capabilities Register into struct pce_dev to avoid
    repeatedly reading this register because it's read only.
    2) provide access functions for PCIe Capabilities registers to hide differences
    among PCIe base specifications, so the caller don't need to handle those
    differences.

    This patch set applies to
    git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git pci-next

    These patch set is still RFC. It provides the new interfaces and has made the
    major changes to adopt those new interfaces. But there are still several device
    drivers left untouched. Any comments about the new interfaces are welcomed,
    especially about function names:). Once we reach an agreement, I will send out
    a formal version with all needed work done.

    Jiang Liu (11):
    PCI: refine and move pcie_cap_has_*() macros to include/linux/pci.h
    PCI: add access functions for PCIe capabilities to hide PCIe spec
    differences
    PCI: use PCIe cap access functions to simplify PCI core
    implementation
    hotplug/PCI: use PCIe cap access functions to simplify implementation
    portdrv/PCI: use PCIe cap access functions to simplify implementation
    pciehp/PCI: use PCIe cap access functions to simplify implementation
    PME/PCI: use PCIe cap access functions to simplify implementation
    AER/PCI: use PCIe cap access functions to simplify implementation
    ASPM/PCI: use PCIe cap access functions to simplify implementation
    r8169/PCI: use PCIe cap access functions to simplify implementation
    qib/PCI: use PCIe cap access functions to simplify implementation

    Yijing Wang (1):
    PCI: add pcie_flags into struct pci_dev to cache PCIe capabilities
    register
    PCI: introduce pci_pcie_type(dev) to replace pci_dev->pcie_type
    PCI: remove unused field pcie_type from struct pci_dev

    arch/powerpc/platforms/powernv/pci-ioda.c | 2 +-
    drivers/infiniband/hw/qib/qib_pcie.c | 34 ++-
    drivers/iommu/intel-iommu.c | 6 +-
    drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 2 +-
    .../net/ethernet/qlogic/netxen/netxen_nic_main.c | 2 +-
    drivers/net/ethernet/realtek/r8169.c | 38 +--
    drivers/pci/access.c | 88 +++++++
    drivers/pci/hotplug/pciehp_acpi.c | 5 +-
    drivers/pci/hotplug/pciehp_hpc.c | 8 +-
    drivers/pci/hotplug/pcihp_slot.c | 17 +-
    drivers/pci/iov.c | 6 +-
    drivers/pci/pci.c | 265 +++++---------------
    drivers/pci/pcie/aer/aer_inject.c | 2 +-
    drivers/pci/pcie/aer/aerdrv.c | 23 +-
    drivers/pci/pcie/aer/aerdrv_acpi.c | 2 +-
    drivers/pci/pcie/aer/aerdrv_core.c | 47 ++--
    drivers/pci/pcie/aspm.c | 110 ++++----
    drivers/pci/pcie/pme.c | 23 +-
    drivers/pci/pcie/portdrv_bus.c | 2 +-
    drivers/pci/pcie/portdrv_core.c | 24 +-
    drivers/pci/pcie/portdrv_pci.c | 15 +-
    drivers/pci/probe.c | 30 +--
    drivers/pci/quirks.c | 8 +-
    drivers/pci/search.c | 2 +-
    include/linux/pci.h | 65 ++++-
    include/linux/pci_regs.h | 19 +-
    26 files changed, 401 insertions(+), 444 deletions(-)

    --
    1.7.9.5



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