From: Bjorn Helgaas <bhelgaas@google.com>
To: Jiang Liu <liuj97@gmail.com>
Cc: Don Dutile <ddutile@redhat.com>, Yinghai Lu <yinghai@kernel.org>,
Taku Izumi <izumi.taku@jp.fujitsu.com>,
"Rafael J . Wysocki" <rjw@sisk.pl>,
Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>,
Yijing Wang <wangyijing@huawei.com>,
Keping Chen <chenkeping@huawei.com>,
linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org
Subject: Re: [RFC PATCH 00/14] improve PCIe capabilities registers handling
Date: Tue, 10 Jul 2012 12:44:39 -0600 [thread overview]
Message-ID: <CAErSpo7zftEkExQMND_a7V-nJKqvuncNGnC_rfFtxQfywUO4jA@mail.gmail.com> (raw)
In-Reply-To: <1341935655-5381-1-git-send-email-jiang.liu@huawei.com>
On Tue, Jul 10, 2012 at 9:54 AM, Jiang Liu <liuj97@gmail.com> wrote:
> 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(-)
Very nice; I like this a lot.
next prev parent reply other threads:[~2012-07-10 18:45 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-04 7:44 [Resend with Ack][PATCH v1] PCI: allow acpiphp to handle PCIe ports without native PCIe hotplug capability Jiang Liu
2012-06-04 8:23 ` Kenji Kaneshige
2012-07-03 4:16 ` Bjorn Helgaas
2012-07-03 15:59 ` Bjorn Helgaas
2012-07-03 19:50 ` Don Dutile
2012-07-04 18:07 ` Bjorn Helgaas
2012-07-09 10:05 ` Jiang Liu
2012-07-09 17:05 ` Bjorn Helgaas
2012-07-04 2:52 ` Jiang Liu
2012-07-10 15:54 ` [RFC PATCH 00/14] improve PCIe capabilities registers handling Jiang Liu
2012-07-10 18:44 ` Bjorn Helgaas [this message]
2012-07-10 15:54 ` [RFC PATCH 01/14] PCI: add pcie_flags into struct pci_dev to cache PCIe capabilities register Jiang Liu
2012-07-11 9:01 ` Taku Izumi
2012-07-11 14:27 ` Jiang Liu
2012-07-10 15:54 ` [RFC PATCH 02/14] PCI: introduce pci_pcie_type(dev) to replace pci_dev->pcie_type Jiang Liu
2012-07-10 15:54 ` [RFC PATCH 03/14] PCI: remove unused field pcie_type from struct pci_dev Jiang Liu
2012-07-10 15:54 ` [RFC PATCH 04/14] PCI: refine and move pcie_cap_has_*() macros to include/linux/pci.h Jiang Liu
2012-07-10 18:49 ` Bjorn Helgaas
2012-07-10 15:54 ` [RFC PATCH 05/14] PCI: add access functions for PCIe capabilities to hide PCIe spec differences Jiang Liu
2012-07-10 18:35 ` Bjorn Helgaas
2012-07-11 3:07 ` Jiang Liu
2012-07-11 3:40 ` Bjorn Helgaas
2012-07-11 6:40 ` Jiang Liu
2012-07-11 17:52 ` Bjorn Helgaas
2012-07-12 2:56 ` Jiang Liu
2012-07-12 20:49 ` Bjorn Helgaas
2012-07-15 16:47 ` Jiang Liu
2012-07-16 17:29 ` Bjorn Helgaas
2012-07-16 18:57 ` Don Dutile
2012-07-17 0:09 ` Jiang Liu
2012-07-17 0:14 ` Bjorn Helgaas
2012-07-10 15:54 ` [RFC PATCH 06/14] PCI: use PCIe cap access functions to simplify PCI core implementation Jiang Liu
2012-07-10 18:35 ` Bjorn Helgaas
2012-07-11 2:49 ` Jiang Liu
2012-07-10 15:54 ` [RFC PATCH 07/14] hotplug/PCI: use PCIe cap access functions to simplify implementation Jiang Liu
2012-07-10 18:35 ` Bjorn Helgaas
2012-07-10 15:54 ` [RFC PATCH 08/14] portdrv/PCI: " Jiang Liu
2012-07-10 15:54 ` [RFC PATCH 09/14] pciehp/PCI: " Jiang Liu
2012-07-10 15:54 ` [RFC PATCH 10/14] PME/PCI: " Jiang Liu
2012-07-10 15:54 ` [RFC PATCH 11/14] AER/PCI: " Jiang Liu
2012-07-10 15:54 ` [RFC PATCH 12/14] ASPM/PCI: " Jiang Liu
2012-07-10 15:54 ` [RFC PATCH 13/14] r8169/PCI: " Jiang Liu
2012-07-10 15:54 ` [RFC PATCH 14/14] qib/PCI: " Jiang Liu
2012-08-15 19:12 ` [Resend with Ack][PATCH v1] PCI: allow acpiphp to handle PCIe ports without native PCIe hotplug capability Bjorn Helgaas
2012-08-16 15:15 ` Jiang Liu
2012-08-22 15:16 ` [PATCH v2] PCI: allow acpiphp to handle PCIe ports w/o " Jiang Liu
2012-09-24 22:10 ` Bjorn Helgaas
2012-09-25 15:16 ` Jiang Liu
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