linux-kernel - Re: [PATCH v2 00/12] bus/fsl-mc: Extend mc-bus driver functionalities in preparation for mc-bus VFIO support

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Message-ID: <c73b9b0d-ebdf-fcc3-2fe4-2c9a28570666@nxp.com>
Date:   Wed, 13 May 2020 11:33:01 +0300
From:   Laurentiu Tudor <laurentiu.tudor@....com>
To:     Diana Craciun <diana.craciun@....nxp.com>,
        linux-kernel@...r.kernel.org
Cc:     stuyoder@...il.com, leoyang.li@....com,
        linux-arm-kernel@...ts.infradead.org, gregkh@...uxfoundation.org
Subject: Re: [PATCH v2 00/12] bus/fsl-mc: Extend mc-bus driver functionalities
 in preparation for mc-bus VFIO support



On 5/7/2020 10:34 AM, Diana Craciun wrote:
> The vfio-mc bus driver needs some additional services to be exported by the
> mc-bus driver like:
> - a way to reset the DPRC container
> - driver_override support
> - functions to setup/tear down a DPRC
> - functions for allocating the pool of interrupts. In case of VFIO the
> interrupts are not configured at probe time, but later by userspace
> request
> 
> v1 -> v2
> - Remove driver_override propagation through various functions
> - Cache the DPRC API version
> 
> The patches are related with "vfio/fsl-mc: VFIO support for FSL-MC
> devices" patches, but the series were split because they are targeting
> different subsystems. However, the mc-bus patches may suffer changes
> when addressing the VFIO review comments.
> 
> Bharat Bhushan (3):
>   bus/fsl-mc: add support for 'driver_override' in the mc-bus
>   bus/fsl-mc: Add dprc-reset-container support
>   bus/fsl-mc: Extend ICID size from 16bit to 32bit
> 
> Diana Craciun (9):
>   bus/fsl-mc: Do no longer export the total number of irqs outside
>     dprc_scan_objects
>   bus/fsl-mc: Add a new parameter to dprc_scan_objects function
>   bus/fsl-mc: Set the QMAN/BMAN region flags
>   bus/fsl-mc: Cache the DPRC API version
>   bus/fsl-mc: Export a dprc scan function to be used by multiple
>     entities
>   bus/fsl-mc: Export a cleanup function for DPRC
>   bus/fsl-mc: Add a container setup function
>   bus/fsl_mc: Do not rely on caller to provide non NULL mc_io
>   bus/fsl-mc: Export IRQ pool handling functions to be used by VFIO
> 
>  drivers/bus/fsl-mc/dprc-driver.c      | 181 ++++++++++++++++----------
>  drivers/bus/fsl-mc/dprc.c             | 103 +++++++++++++--
>  drivers/bus/fsl-mc/fsl-mc-allocator.c |  12 +-
>  drivers/bus/fsl-mc/fsl-mc-bus.c       |  64 ++++++++-
>  drivers/bus/fsl-mc/fsl-mc-private.h   |  28 ++--
>  drivers/bus/fsl-mc/mc-io.c            |   7 +-
>  include/linux/fsl/mc.h                |  29 ++++-
>  7 files changed, 313 insertions(+), 111 deletions(-)
> 

For the whole series:

Reviewed-by:  Laurentiu Tudor <laurentiu.tudor@....com>

---
Best Regards, Laurentiu