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SubjectRe: [PATCH for-next 0/2] {IB,net}/hns: Add support of ACPI to the Hisilicon RoCE Driver
On 8/25/2016 8:08 AM, Salil Mehta wrote:
>> -----Original Message-----
>> From: Doug Ledford []
>> Sent: Thursday, August 25, 2016 12:57 PM
>> To: David Miller; Salil Mehta
>> Cc: Huwei (Xavier); oulijun; Zhuangyuzeng (Yisen);
>>;; Linuxarm
>> Subject: Re: [PATCH for-next 0/2] {IB,net}/hns: Add support of ACPI to
>> the Hisilicon RoCE Driver
>> On 8/25/2016 12:53 AM, David Miller wrote:
>>> From: Salil Mehta <>
>>> Date: Wed, 24 Aug 2016 04:44:48 +0800
>>>> This patch is meant to add support of ACPI to the Hisilicon RoCE
>> driver.
>>>> Following changes have been made in the driver(s):
>>>> Patch 1/2: HNS Ethernet Driver: changes to support ACPI have been
>> done in
>>>> the RoCE reset function part of the HNS ethernet driver. Earlier
>> it only
>>>> supported DT/syscon.
>>>> Patch 2/2. HNS RoCE driver: changes done in RoCE driver are meant to
>> detect
>>>> the type and then either use DT specific or ACPI spcific
>> functions. Where
>>>> ever possible, this patch tries to make use of "Unified Device
>> Property
>>>> Interface" APIs to support both DT and ACPI through single
>> interface.
>>>> NOTE 1: ACPI changes done in both of the drivers depend upon the
>> ACPI Table
>>>> (DSDT and IORT tables) changes part of UEFI/BIOS. These changes
>> are NOT
>>>> part of this patch-set.
>>>> NOTE 2: Reset function in Patch 1/2 depends upon the reset function
>> added in
>>>> ACPI tables(basically DSDT table) part of the UEFI/BIOS. Again,
>> this
>>>> change is NOT reflected in this patch-set.
>>> I can't apply this series to my tree because the hns infiniband
>> driver
>>> doesn't exist in it.
>> No. This probably needs to go through my tree. Although with all of
>> the requirements, I'm a bit concerned about those being present
>> elsewhere.
>> --
>> Doug Ledford <>
>> GPG Key ID: 0E572FDD
> Hello Doug,
> Thanks for your reply. I have just replied to David email as well and did
> not realize your response was already on the way. Sorry for this!
> I would just like to request, if by any chance, we can expedite the acceptance
> of the below patch (part of patch-set) in the net-next. This might help you as
> well in future when you will actually push the RoCE driver to the linux-next.
> "[PATCH for-next 1/2] net: hns: Add support of ACPI to HNS driver RoCE Reset
> function"
> Below HNS RoCE reset function patch has already been accepted by Dave Miller and
> is part of net-next,
> Also, above ACPI support of RoCE Reset patch cleanly applies over the already
> accepted patch in the link and is not dependent on other accompanying RoCE
> driver ACPI changes or even the presence of the Infiniband/RoCE Driver in the
> net-next repository.
> Could you please suggest if this the something which can be considered?

I've pulled both of these patches in. I usually merge late in the merge
window, so it won't be any stretch to wait until the ACPI tree has been
merged before I send Linus my pull request.

Doug Ledford <>
GPG Key ID: 0E572FDD

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