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Subject: Re: [RFC PATCH V5 0/5] ECAM quirks handling for ARM64 platforms
To: Tomasz Nowicki <tn@semihalf.com>, <helgaas@kernel.org>, <arnd@arndb.de>,
        <will.deacon@arm.com>, <catalin.marinas@arm.com>, <rafael@kernel.org>,
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From: Dongdong Liu <liudongdong3@huawei.com>
Message-ID: <57A9A06A.30907@huawei.com>
Date: Tue, 9 Aug 2016 17:20:42 +0800
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ÔÚ 2016/8/8 21:05, Tomasz Nowicki дµÀ:
> Quirk handling relies on an idea of matching MCFG OEM ID, TABLE ID and
> revision (the ones from standard header of MCFG table).
>
> Static array is used to keep quirk entries. Each entry consists of
> mentioned MCFG IDs along with custom pci_ops structure and initialization call.
>
> As an example, the last patch presents quirk handling mechanism usage for
> ThunderX PEM driver.
>
> v4 -> v5
> - rebase against v4.8-rc1
> - rework to exact MCFG OEM ID, TABLE ID, rev match
>    - use memcmp instead of strncmp
>    - no substring match
> - fix typos and dmesg message
>
> Tomasz Nowicki (5):
>    PCI: Embed pci_ecam_ops in pci_config_window structure
>    PCI/ACPI: Move ACPI ECAM mapping to generic MCFG driver
>    PCI: Check platform specific ECAM quirks
>    ARM64/PCI: Start using quirks handling for ACPI based PCI host
>      controller
>    PCI: thunder-pem: Support quirky configuration space access for ACPI
>      based PCI host controller
>
>   arch/arm64/kernel/pci.c            | 42 +----------------
>   drivers/acpi/pci_mcfg.c            | 40 ++++++++++++++++
>   drivers/pci/ecam.c                 |  6 +--
>   drivers/pci/host/Makefile          |  1 +
>   drivers/pci/host/mcfg-quirks.c     | 93 ++++++++++++++++++++++++++++++++++++
>   drivers/pci/host/mcfg-quirks.h     | 24 ++++++++++
>   drivers/pci/host/pci-thunder-pem.c | 96 ++++++++++++++++++++++++++++++++------
>   include/linux/pci-acpi.h           |  5 ++
>   include/linux/pci-ecam.h           |  2 +-
>   9 files changed, 252 insertions(+), 57 deletions(-)
>   create mode 100644 drivers/pci/host/mcfg-quirks.c
>   create mode 100644 drivers/pci/host/mcfg-quirks.h
>

Based on the patchset, tested on HiSilicon D03 board with intel 82599 net card. It worked OK.

Tested-by: Dongdong Liu <liudongdong3@huawei.com>

Thanks
Dongdong