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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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