linux-kernel - Re: [PATCH v6 0/4] Broadcom SBA RAID support

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Message-ID: <CAALAos-P6CDdWTJxg8YQfT1V+iCxUcbYHiQ35EdZzz9PnN3cuA@mail.gmail.com>
Date:   Wed, 29 Mar 2017 11:35:43 +0530
From:   Anup Patel <anup.patel@...adcom.com>
To:     Vinod Koul <vinod.koul@...el.com>
Cc:     Jassi Brar <jassisinghbrar@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        "David S . Miller" <davem@...emloft.net>,
        Dan Williams <dan.j.williams@...el.com>,
        Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        Jon Mason <jonmason@...adcom.com>,
        Rob Rice <rob.rice@...adcom.com>,
        BCM Kernel Feedback <bcm-kernel-feedback-list@...adcom.com>,
        dmaengine@...r.kernel.org,
        Device Tree <devicetree@...r.kernel.org>,
        Linux ARM Kernel <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel <linux-kernel@...r.kernel.org>,
        linux-crypto@...r.kernel.org,
        linux-raid <linux-raid@...r.kernel.org>
Subject: Re: [PATCH v6 0/4] Broadcom SBA RAID support

On Tue, Mar 21, 2017 at 2:48 PM, Vinod Koul <vinod.koul@...el.com> wrote:
> On Tue, Mar 21, 2017 at 02:17:21PM +0530, Anup Patel wrote:
>> On Tue, Mar 21, 2017 at 2:00 PM, Vinod Koul <vinod.koul@...el.com> wrote:
>> > On Mon, Mar 06, 2017 at 03:13:24PM +0530, Anup Patel wrote:
>> >> The Broadcom SBA RAID is a stream-based device which provides
>> >> RAID5/6 offload.
>> >>
>> >> It requires a SoC specific ring manager (such as Broadcom FlexRM
>> >> ring manager) to provide ring-based programming interface. Due to
>> >> this, the Broadcom SBA RAID driver (mailbox client) implements
>> >> DMA device having one DMA channel using a set of mailbox channels
>> >> provided by Broadcom SoC specific ring manager driver (mailbox
>> >> controller).
>> >>
>> >> The Broadcom SBA RAID hardware requires PQ disk position instead
>> >> of PQ disk coefficient. To address this, we have added raid_gflog
>> >> table which will help driver to convert PQ disk coefficient to PQ
>> >> disk position.
>> >>
>> >> This patchset is based on Linux-4.11-rc1 and depends on patchset
>> >> "[PATCH v5 0/2] Broadcom FlexRM ring manager support"
>> >
>> > Okay I applied and was about to push when I noticed this :(
>> >
>> > So what is the status of this..?
>>
>> PATCH2 is Acked but PATCH1 is under-review. Currently, its
>> v6 of that patchset.
>>
>> The only dependency on that patchset is the changes in
>> brcm-message.h which are required by this BCM-SBA-RAID
>> driver.
>>
>> @Jassi,
>> Can you please have a look at PATCH v6?
>
> And I would need an immutable branch/tag once merged. I am going to keep
> this series pending till then.

The Broadcom FlexRM patchset is pickedup by Jassi and
can be found in mailbox-for-next branch of
git://git.linaro.org/landing-teams/working/fujitsu/integration

Both patchset (Broadcom FlexRM patchset and this one) are
also available in sba-raid-v7 branch of
https://github.com/Broadcom/arm64-linux.git

Regards,
Anup