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Date: Tue, 10 Jul 2012 12:44:39 -0600 From: Bjorn Helgaas <bhelgaas@...gle.com> To: Jiang Liu <liuj97@...il.com> Cc: Don Dutile <ddutile@...hat.com>, Yinghai Lu <yinghai@...nel.org>, Taku Izumi <izumi.taku@...fujitsu.com>, "Rafael J . Wysocki" <rjw@...k.pl>, Kenji Kaneshige <kaneshige.kenji@...fujitsu.com>, Yijing Wang <wangyijing@...wei.com>, Keping Chen <chenkeping@...wei.com>, linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org Subject: Re: [RFC PATCH 00/14] improve PCIe capabilities registers handling On Tue, Jul 10, 2012 at 9:54 AM, Jiang Liu <liuj97@...il.com> wrote: > From: Jiang Liu <liuj97@...il.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(-) Very nice; I like this a lot. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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