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From: Andrew Lunn <andrew@lunn.ch>
To: Diana Craciun <diana.craciun@nxp.com>
Cc: linux-kernel@vger.kernel.org, laurentiu.tudor@nxp.com,
	gregkh@linuxfoundation.org, stuyoder@gmail.com,
	leoyang.li@nxp.com, bharatb.linux@gmail.com,
	Diana Craciun <diana.craciun@oss.nxp.com>,
	Bharat Bhushan <Bharat.Bhushan@nxp.com>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 03/13] bus/fsl-mc: add support for 'driver_override' in the mc-bus
Date: Mon, 6 Jul 2020 15:57:17 +0200	[thread overview]
Message-ID: <20200706135717.GB919533@lunn.ch> (raw)
In-Reply-To: <20200706124243.10697-4-diana.craciun@nxp.com>

Hi Diana

On Mon, Jul 06, 2020 at 03:42:33PM +0300, Diana Craciun wrote:
> From: Bharat Bhushan <Bharat.Bhushan@nxp.com>
> 
> This patch is required for vfio-fsl-mc meta driver to successfully bind
> layerscape container devices for device passthrough. This patch adds
> a mechanism to allow a layerscape device to specify a driver rather than
> a layerscape driver provide a device match.
> 
> Example to allow a device (dprc.1) to specifically bind
> with driver (vfio-fsl-mc):-
>  - echo vfio-fsl-mc > /sys/bus/fsl-mc/devices/dprc.1/driver_override
>  - echo dprc.1 > /sys/bus/fsl-mc/drivers/fsl_mc_dprc/unbind
>  - echo dprc.1 > /sys/bus/fsl-mc/drivers/vfio-fsl-mc/bind

Something i asked before, why is this buried in a driver, when it
could be put in the driver core. This is not the only driver doing
this, so it does make sense to share the code and bugs.

      Andrew

  reply	other threads:[~2020-07-06 13:57 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-06 12:42 [PATCH v3 00/13] bus/fsl-mc: Extend mc-bus driver functionalities in preparation for mc-bus VFIO support Diana Craciun
2020-07-06 12:42 ` [PATCH v3 01/13] bus/fsl-mc: Do no longer export the total number of irqs outside dprc_scan_objects Diana Craciun
2020-07-06 12:42 ` [PATCH v3 02/13] bus/fsl-mc: Add a new parameter to dprc_scan_objects function Diana Craciun
2020-07-06 12:42 ` [PATCH v3 03/13] bus/fsl-mc: add support for 'driver_override' in the mc-bus Diana Craciun
2020-07-06 13:57   ` Andrew Lunn [this message]
2020-07-06 16:35     ` Diana Craciun OSS
2020-07-06 12:42 ` [PATCH v3 04/13] bus/fsl-mc: Set the QMAN/BMAN region flags Diana Craciun
2020-07-06 12:42 ` [PATCH v3 05/13] bus/fsl-mc: Cache the DPRC API version Diana Craciun
2020-07-06 12:42 ` [PATCH v3 06/13] bus/fsl-mc: Add dprc-reset-container support Diana Craciun
2020-07-06 12:42 ` [PATCH v3 07/13] bus/fsl-mc: Export a dprc scan function to be used by multiple entities Diana Craciun
2020-07-06 12:42 ` [PATCH v3 08/13] bus/fsl-mc: Export a cleanup function for DPRC Diana Craciun
2020-07-06 12:42 ` [PATCH v3 09/13] bus/fsl-mc: Add a container setup function Diana Craciun
2020-07-06 12:42 ` [PATCH v3 10/13] bus/fsl_mc: Do not rely on caller to provide non NULL mc_io Diana Craciun
2020-07-06 12:42 ` [PATCH v3 11/13] bus/fsl-mc: Export IRQ pool handling functions to be used by VFIO Diana Craciun
2020-07-06 12:42 ` [PATCH v3 12/13] bus/fsl-mc: Extend ICID size from 16bit to 32bit Diana Craciun
2020-07-06 12:42 ` [PATCH v3 13/13] bus/fsl-mc: Add a new version for dprc_get_obj_region command Diana Craciun
2020-07-06 13:14   ` Laurentiu Tudor
2020-07-06 15:49     ` Diana Craciun OSS

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