linux-kernel - Re: [RFC PATCH V5 0/5] ECAM quirks handling for ARM64 platforms

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Date:	Tue, 9 Aug 2016 17:20:42 +0800
From:	Dongdong Liu <liudongdong3@...wei.com>
To:	Tomasz Nowicki <tn@...ihalf.com>, <helgaas@...nel.org>,
	<arnd@...db.de>, <will.deacon@....com>, <catalin.marinas@....com>,
	<rafael@...nel.org>, <Lorenzo.Pieralisi@....com>
CC:	<hanjun.guo@...aro.org>, <okaya@...eaurora.org>,
	<jchandra@...adcom.com>, <cov@...eaurora.org>, <dhdang@....com>,
	<ard.biesheuvel@...aro.org>, <robert.richter@...iumnetworks.com>,
	<mw@...ihalf.com>, <Liviu.Dudau@....com>,
	<ddaney@...iumnetworks.com>, <wangyijing@...wei.com>,
	<msalter@...hat.com>, <linux-pci@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linaro-acpi@...ts.linaro.org>, <jcm@...hat.com>,
	<andrea.gallo@...aro.org>, <jeremy.linton@....com>,
	<gabriele.paoloni@...wei.com>, <jhugo@...eaurora.org>,
	<linux-acpi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Linuxarm <linuxarm@...wei.com>
Subject: Re: [RFC PATCH V5 0/5] ECAM quirks handling for ARM64 platforms


在 2016/8/8 21:05, Tomasz Nowicki 写道:
> 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@...wei.com>

Thanks
Dongdong