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Subject: Re: [PATCH] can: enable multi-queue for SocketCAN devices
To:     "Jonas Mark (BT-FIR/ENG1)" <Mark.Jonas@de.bosch.com>,
        Wolfgang Grandegger <wg@grandegger.com>
Cc:     "linux-can@vger.kernel.org" <linux-can@vger.kernel.org>,
        "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "hs@denx.de" <hs@denx.de>,
        "ZHU Yi (BT-FIR/ENG1-Zhu)" <Yi.Zhu5@cn.bosch.com>
References: <1e51047cd14048e99989ffcf9e10ffa8@de.bosch.com>
From:   Marc Kleine-Budde <mkl@pengutronix.de>
Message-ID: <dcf8cd60-e3ce-d8b0-2163-a5ecc3f00fb9@pengutronix.de>
Date:   Wed, 14 Mar 2018 23:17:32 +0100
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From: Marc Kleine-Budde <mkl@pengutronix.de>
To: "Jonas Mark (BT-FIR/ENG1)" <Mark.Jonas@de.bosch.com>,
 Wolfgang Grandegger <wg@grandegger.com>
Cc: "linux-can@vger.kernel.org" <linux-can@vger.kernel.org>,
 "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
 "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
 "hs@denx.de" <hs@denx.de>, "ZHU Yi (BT-FIR/ENG1-Zhu)" <Yi.Zhu5@cn.bosch.com>
Message-ID: <dcf8cd60-e3ce-d8b0-2163-a5ecc3f00fb9@pengutronix.de>
Subject: Re: [PATCH] can: enable multi-queue for SocketCAN devices
References: <1e51047cd14048e99989ffcf9e10ffa8@de.bosch.com>
In-Reply-To: <1e51047cd14048e99989ffcf9e10ffa8@de.bosch.com>

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On 03/14/2018 05:51 PM, Jonas Mark (BT-FIR/ENG1) wrote:
>> That doesn't matter. It would be the first driver that makes use of th=
e
>> feature, so we can learn from it. And you might get a free review of
>> your driver.
>=20
> Of course we would be happy if somebody was volunteering to review
> our driver for free.

If my time permits, I'll throw some eyeballs on the driver.

> The driver consists of two layers because the HW is accessed via SPI.

Normal SPI?

> So there is a SPI driver of 1000 lines. On top of that is the CAN
> driver and it has 600 lines. Because the HW does more than just
> CAN there is another driver which implements a char device with
> additional 300 lines.
>=20
> Are there still volunteers?

The SPI and the CAN driver would be the most interesting ones.

>>> Our motivation to separate this patch from the proprietary SocketCAN
>>> driver
>>
>> Looking at your email address I assume your employer sells devices wit=
h
>> this hardware and the driver. So someone has to provide the sources fo=
r
>> it anyways to fulfil the GPL license requirements. :)
>=20
> I will have to check but I am pretty confident that we would be willing=

> to publish the driver on these mailing lists as well. We will anyhow
> ship the source code (or a written offer) with every distribution.

Sure - can I find your devices used and low priced on ebay :) ?

> If you are really serious about the review I will get the process
> rolling for an early publication of our driver.

Yes, please go ahead!

Marc

--=20
Pengutronix e.K.                  | Marc Kleine-Budde           |
Industrial Linux Solutions        | Phone: +49-231-2826-924     |
Vertretung West/Dortmund          | Fax:   +49-5121-206917-5555 |
Amtsgericht Hildesheim, HRA 2686  | http://www.pengutronix.de   |


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