From: Greg KH <gregkh@linuxfoundation.org>
To: Vamsi Krishna Attunuru <vattunuru@marvell.com>
Cc: "arnd@arndb.de" <arnd@arndb.de>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Jerin Jacob <jerinj@marvell.com>
Subject: Re: [EXTERNAL] Re: [PATCH v5 1/1] misc: mrvl-cn10k-dpi: add Octeon CN10K DPI administrative driver
Date: Thu, 25 Apr 2024 18:04:33 -0700 [thread overview]
Message-ID: <2024042501-stargazer-departure-e5b9@gregkh> (raw)
In-Reply-To: <MW4PR18MB5244CD9591CDE87CB062DFEAA6172@MW4PR18MB5244.namprd18.prod.outlook.com>
On Thu, Apr 25, 2024 at 01:36:05PM +0000, Vamsi Krishna Attunuru wrote:
> >
> > > -----Original Message-----
> > > From: Greg KH <gregkh@linuxfoundation.org>
> > > Sent: Friday, April 12, 2024 5:57 PM
> > > To: Vamsi Krishna Attunuru <vattunuru@marvell.com>
> > > Cc: arnd@arndb.de; linux-kernel@vger.kernel.org
> > > Subject: [EXTERNAL] Re: [PATCH v5 1/1] misc: mrvl-cn10k-dpi: add
> > > Octeon CN10K DPI administrative driver
> > >
> > > Prioritize security for external emails: Confirm sender and content
> > > safety before clicking links or opening attachments
> > >
> > > ----------------------------------------------------------------------
> > > On Fri, Apr 12, 2024 at 05:10:05AM -0700, Vamsi Attunuru wrote:
> > > > Adds a misc driver for Marvell CN10K DPI(DMA Engine) device's
> > > > physical function which initializes DPI DMA hardware's global
> > > > configuration and enables hardware mailbox channels between physical
> > > > function (PF) and it's virtual functions (VF). VF device drivers
> > > > (User space drivers) use this hw mailbox to communicate any required
> > > > device configuration on it's respective VF device. Accordingly, this
> > > > DPI PF driver provisions the VF device resources.
> > > >
> > > > At the hardware level, the DPI physical function (PF) acts as a
> > > > management interface to setup the VF device resources, VF devices
> > > > are only provisioned to handle or control the actual DMA Engine's
> > > > data transfer
> > > capabilities.
> > >
> > > No pointer to the userspace code that uses this? Why not? How are we
> > > supposed to be able to review this?
> >
> Hi Greg, please check the below files for userspace code that interact with this kernel driver.
> driver/roc_dpi.c provides the mailbox interface to communicate with this kernel driver.
> application/main.c is the DPI DMA application which uses this misc driver to configure
> the device with required mps, mrrs, fifo_mask parameters.
>
> https://github.com/VamsiKrishnaA99/dpi-dma/blob/main/driver/roc_dpi.c
> https://github.com/VamsiKrishnaA99/dpi-dma/blob/main/application/main.c
Please provide this information in a new version of the patch, looking
at this now when we don't have the kernel code present is almost
impossible, sorry.
thanks,
greg k-h
next prev parent reply other threads:[~2024-04-26 8:28 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-14 3:55 [PATCH 1/1] misc: mrvl-dpi: add octeontx3 dpi driver Vamsi Attunuru
2024-02-14 10:50 ` Greg KH
2024-02-14 11:40 ` [EXT] " Vamsi Krishna Attunuru
2024-02-14 11:22 ` Arnd Bergmann
2024-02-14 13:33 ` [EXT] " Vamsi Krishna Attunuru
2024-02-16 10:32 ` [PATCH v2 1/1] misc: mrvl-cn10k-dpi: add Octeon CN10K " Vamsi Attunuru
2024-02-17 8:13 ` Greg KH
2024-02-19 5:03 ` [EXT] " Vamsi Krishna Attunuru
2024-02-19 6:18 ` Greg KH
2024-02-19 7:03 ` Vamsi Krishna Attunuru
2024-02-28 16:21 ` [PATCH v3 1/1] misc: mrvl-cn10k-dpi: add Octeon CN10K DPI administrative driver Vamsi Attunuru
2024-03-07 21:55 ` Greg KH
2024-03-08 11:36 ` [EXTERNAL] " Vamsi Krishna Attunuru
2024-03-12 10:56 ` [PATCH v4 " Vamsi Attunuru
2024-04-11 13:02 ` Greg KH
2024-04-12 6:34 ` [EXTERNAL] " Vamsi Krishna Attunuru
2024-04-12 12:10 ` [PATCH v5 " Vamsi Attunuru
2024-04-12 12:26 ` Greg KH
2024-04-12 13:56 ` [EXTERNAL] " Vamsi Krishna Attunuru
2024-04-12 15:34 ` Greg KH
2024-04-12 16:19 ` Vamsi Krishna Attunuru
2024-04-13 5:47 ` Greg KH
2024-04-13 10:58 ` Vamsi Krishna Attunuru
2024-04-13 11:25 ` Greg KH
2024-04-13 16:17 ` Vamsi Krishna Attunuru
2024-04-13 19:11 ` Arnd Bergmann
2024-04-14 9:33 ` Vamsi Krishna Attunuru
2024-04-14 9:46 ` Greg Kroah-Hartman
2024-04-14 12:32 ` Vamsi Krishna Attunuru
2024-04-25 13:36 ` Vamsi Krishna Attunuru
2024-04-26 1:04 ` Greg KH [this message]
2024-04-26 18:20 ` [PATCH v6 " Vamsi Attunuru
2024-04-27 11:06 ` Greg KH
2024-04-27 11:59 ` [EXTERNAL] " Vamsi Krishna Attunuru
2024-04-29 5:50 ` Vamsi Attunuru
2024-04-29 9:13 ` Greg KH
2024-05-01 7:46 ` [EXTERNAL] " Vamsi Krishna Attunuru
2024-05-01 8:02 ` Greg KH
2024-05-20 11:06 ` [PATCH v7 " Vamsi Attunuru
2024-06-04 15:52 ` Greg KH
2024-06-04 16:21 ` [EXTERNAL] " Vamsi Krishna Attunuru
2024-06-05 11:57 ` Arnd Bergmann
2024-06-06 8:58 ` Vamsi Krishna Attunuru
2024-06-06 16:42 ` Vamsi Krishna Attunuru
2024-06-08 8:42 ` Arnd Bergmann
2024-04-30 14:00 ` [PATCH v6 " kernel test robot
2024-04-30 14:22 ` kernel test robot
2024-04-30 15:36 ` kernel test robot
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