Re: [PATCH v4 00/21] PCI: fix config space memory mappings

From	Dongdong Liu <liudongdong3@huawei.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v4 00/21] PCI: fix config space memory mappings
Date	2017-04-26 13:00 +0200
Message-ID	<tAsPU-197-19@gated-at.bofh.it> (permalink)
References	<ty0XL-5M7-3@gated-at.bofh.it> <tA2sp-17M-13@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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

I tested the patchset on HiSilicon ARM64 D05 board.It works ok with 82599 netcard.

Thanks,
Dongdong
在 2017/4/25 14:40, Jon Masters 写道:
> On 04/19/2017 12:48 PM, Lorenzo Pieralisi wrote:
>
>> On some platforms (ie ARM/ARM64) ioremap fails to comply with the PCI
>> configuration non-posted write transactions requirement, because it
>> provides a memory mapping that issues "bufferable" or, in PCI terms
>> "posted" write transactions. Likewise, the current pci_remap_iospace()
>> implementation maps the physical address range that the PCI translates
>> to I/O space cycles to virtual address space through pgprot_device()
>> attributes that on eg ARM64 provides a memory mapping issuing
>> posted writes transactions, which is not PCI specifications compliant.
>
> Side note that I've pinged all of the ARM server vendors and asked them
> to verify this patch series on their platforms.
>
> Jon.
>
> .
>

Thread

Re: [PATCH v4 00/21] PCI: fix config space memory mappings Jon Masters <jcm@jonmasters.org> - 2017-04-25 08:50 +0200
  Re: [PATCH v4 00/21] PCI: fix config space memory mappings "Jingoo Han" <jingoohan1@gmail.com> - 2017-04-25 18:30 +0200
    Re: [PATCH v4 00/21] PCI: fix config space memory mappings Khuong Dinh <kdinh@apm.com> - 2017-04-25 20:40 +0200
  Re: [PATCH v4 00/21] PCI: fix config space memory mappings Dongdong Liu <liudongdong3@huawei.com> - 2017-04-26 13:00 +0200
    Re: [PATCH v4 00/21] PCI: fix config space memory mappings "Jingoo Han" <jingoohan1@gmail.com> - 2017-04-26 19:30 +0200
      Re: [PATCH v4 00/21] PCI: fix config space memory mappings Dongdong Liu <liudongdong3@huawei.com> - 2017-04-27 03:50 +0200
        Re: [PATCH v4 00/21] PCI: fix config space memory mappings Khuong Dinh <kdinh@apm.com> - 2017-04-27 18:50 +0200

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