linux-kernel - RE: [PATCH 5/5] staging: fsl-mc: Management Complex restool driver

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Message-ID: <CY1PR0301MB0748860D518F248E97187BA787220@CY1PR0301MB0748.namprd03.prod.outlook.com>
Date:	Tue, 27 Oct 2015 02:11:27 +0000
From:	Stuart Yoder <stuart.yoder@...escale.com>
To:	Lijun Pan <Lijun.Pan@...escale.com>,
	"gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
	"arnd@...db.de" <arnd@...db.de>,
	"devel@...verdev.osuosl.org" <devel@...verdev.osuosl.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:	Katz Itai <itai.katz@...escale.com>,
	Jose Rivera <German.Rivera@...escale.com>,
	Li Leo <LeoLi@...escale.com>,
	Scott Wood <scottwood@...escale.com>,
	"agraf@...e.de" <agraf@...e.de>,
	Hamciuc Bogdan <bhamciu1@...escale.com>,
	Marginean Alexandru <R89243@...escale.com>,
	"Sharma Bhupesh" <bhupesh.sharma@...escale.com>,
	Erez Nir <nir.erez@...escale.com>,
	Richard Schmitt <richard.schmitt@...escale.com>,
	"dan.carpenter@...cle.com" <dan.carpenter@...cle.com>,
	Lijun Pan <Lijun.Pan@...escale.com>
Subject: RE: [PATCH 5/5] staging: fsl-mc: Management Complex restool driver



> -----Original Message-----
> From: Lijun Pan [mailto:Lijun.Pan@...escale.com]
> Sent: Sunday, October 25, 2015 5:41 PM
> To: gregkh@...uxfoundation.org; arnd@...db.de; devel@...verdev.osuosl.org; linux-kernel@...r.kernel.org
> Cc: Yoder Stuart-B08248; katz Itai-RM05202; Rivera Jose-B46482; Li Yang-Leo-R58472; Wood Scott-B07421;
> agraf@...e.de; Hamciuc Bogdan-BHAMCIU1; Marginean Alexandru-R89243; Sharma Bhupesh-B45370; Erez Nir-RM30794;
> Schmitt Richard-B43082; dan.carpenter@...cle.com; Pan Lijun-B44306
> Subject: [PATCH 5/5] staging: fsl-mc: Management Complex restool driver
> 
> The kernel support for the restool (a user space resource management
> tool) is a driver for the /dev/dprc.N device file.
> Its purpose is to provide an ioctl interface,
> which the restool uses to interact with the MC bus driver

Name of the user space tool should be updated to be current:  s/restool/ls-restool/

> and with the MC firmware.
> We allocate a dpmcp at driver initialization,
> and keep that dpmcp until driver exit.
> We use that dpmcp by default.
> If that dpmcp is in use, we create another portal at run time
> and destroy the newly created portal after use.
> The ioctl RESTOOL_SEND_MC_COMMAND sends user space command to fsl-mc
> bus and utilizes the fsl-mc bus to communicate with MC firmware.
> The ioctl RESTOOL_DPRC_SYNC request the mc-bus launch
> objects scan under root dprc.
> In order to support multiple root dprc, we utilize the bus notify
> mechanism to scan fsl_mc_bus_type for the newly added root dprc.
> After discovering the root dprc, it creates a miscdevice
> /dev/dprc.N to associate with this root dprc.
> 
> Signed-off-by: Lijun Pan <Lijun.Pan@...escale.com>
> ---
>  drivers/staging/fsl-mc/bus/Kconfig      |   7 +-
>  drivers/staging/fsl-mc/bus/Makefile     |   3 +
>  drivers/staging/fsl-mc/bus/mc-ioctl.h   |  24 ++
>  drivers/staging/fsl-mc/bus/mc-restool.c | 488 ++++++++++++++++++++++++++++++++
>  4 files changed, 521 insertions(+), 1 deletion(-)
>  create mode 100644 drivers/staging/fsl-mc/bus/mc-ioctl.h
>  create mode 100644 drivers/staging/fsl-mc/bus/mc-restool.c
> 
> diff --git a/drivers/staging/fsl-mc/bus/Kconfig b/drivers/staging/fsl-mc/bus/Kconfig
> index 0d779d9..39c6ef9 100644
> --- a/drivers/staging/fsl-mc/bus/Kconfig
> +++ b/drivers/staging/fsl-mc/bus/Kconfig
> @@ -21,4 +21,9 @@ config FSL_MC_BUS
>  	  Only enable this option when building the kernel for
>  	  Freescale QorQIQ LS2xxxx SoCs.
> 
> -
> +config FSL_MC_RESTOOL
> +        tristate "Freescale Management Complex (MC) restool driver"

s/restool/ls-restool/

Thanks,
Stuart
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