linux-kernel - Re: [PATCH anybus v3 0/6] Support HMS Profinet Card over Anybus

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Message-ID: <CAGngYiU+8k4ZHYhFVQGKXW8mATEDi64Mi9PsVkX-5vn2PCY3ew@mail.gmail.com>
Date:   Fri, 9 Nov 2018 11:02:04 -0500
From:   Sven Van Asbroeck <thesven73@...il.com>
To:     Sven Van Asbroeck <svendev@...x.com>,
        Arnd Bergmann <arnd@...db.de>, Rob Herring <robh@...nel.org>,
        Linus Walleij <linus.walleij@...aro.org>
Cc:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>
Subject: Re: [PATCH anybus v3 0/6] Support HMS Profinet Card over Anybus

Arnd, Rob, Linus,

Many thanks for your constructive feedback so far !

Is there anything in general about this set that would prevent it from being
mainlined? Perhaps I am trying to do too much at once, dropping a patchset
that is too complex to be properly reviewed?

I've been thinking about reworking the host to its simplest, yet feature-
complete form. Just serialize all card accesses with a single lock.
Then the kernel thread, kqueue, kcache, kref etc would all disappear.
The price we pay is a reduction in performance/parallelism.
We could then increase parallelism at a later stage.
Would that be of any help?

Comments on v3 will go into v4 shortly.
(Rob, I'm not sure how to address your feedback, other than to s/host/slot/g ?)

Yours,
Sven