From: "Tian, Kevin" <kevin.tian@intel.com>
To: Brett Creeley <brett.creeley@amd.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"alex.williamson@redhat.com" <alex.williamson@redhat.com>,
"jgg@nvidia.com" <jgg@nvidia.com>,
"yishaih@nvidia.com" <yishaih@nvidia.com>,
"shameerali.kolothum.thodi@huawei.com"
<shameerali.kolothum.thodi@huawei.com>
Cc: "shannon.nelson@amd.com" <shannon.nelson@amd.com>
Subject: RE: [PATCH v10 vfio 0/7] pds_vfio driver
Date: Fri, 16 Jun 2023 06:47:39 +0000 [thread overview]
Message-ID: <BN9PR11MB52764A3D962F65B25FCE88748C58A@BN9PR11MB5276.namprd11.prod.outlook.com> (raw)
In-Reply-To: <20230602220318.15323-1-brett.creeley@amd.com>
> From: Brett Creeley <brett.creeley@amd.com>
> Sent: Saturday, June 3, 2023 6:03 AM
>
> This is a patchset for a new vendor specific VFIO driver
> (pds_vfio) for use with the AMD/Pensando Distributed Services Card
> (DSC). This driver makes use of the pds_core driver.
>
> This driver will use the pds_core device's adminq as the VFIO
> control path to the DSC. In order to make adminq calls, the VFIO
> instance makes use of functions exported by the pds_core driver.
>
> In order to receive events from pds_core, the pds_vfio driver
> registers to a private notifier. This is needed for various events
> that come from the device.
>
> An ASCII diagram of a VFIO instance looks something like this and can
> be used with the VFIO subsystem to provide the VF device VFIO and live
> migration support.
>
> .------. .-----------------------.
> | QEMU |--| VM .-------------. |
> '......' | | Eth VF | |
> | | .-------------. |
> | | | SR-IOV VF | |
> | | '-------------' |
> | '------------||---------'
> .--------------. ||
> |/dev/<vfio_fd>| ||
> '--------------' ||
> Host Userspace | ||
> =================================================== ||
> Host Kernel | ||
> .--------. ||
> |vfio-pci| ||
> '--------' ||
> .------------------. || ||
> | | exported API |<----+ || ||
> | '--------------| | || ||
> | | .-------------. ||
> | pds_core |--->| pds_vfio | ||
> '------------------' | '-------------' ||
> || | || ||
> 09:00.0 notifier 09:00.1 ||
> == PCI ===============================================||=====
> || || ||
> .----------. .----------. ||
> ,-----| PF |----------| VF |-------------------,
> | '----------' '----------' | VF |
> | DSC | data/control |
> | | path |
> -----------------------------------------------------------
>
why is "VF data/control path" drawn out of the VF box?
next prev parent reply other threads:[~2023-06-16 6:47 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-02 22:03 [PATCH v10 vfio 0/7] pds_vfio driver Brett Creeley
2023-06-02 22:03 ` [PATCH v10 vfio 1/7] vfio: Commonize combine_ranges for use in other VFIO drivers Brett Creeley
2023-06-16 6:52 ` Tian, Kevin
2023-06-16 18:37 ` Brett Creeley
2023-06-02 22:03 ` [PATCH v10 vfio 2/7] vfio/pds: Initial support for pds_vfio VFIO driver Brett Creeley
2023-06-14 21:31 ` Alex Williamson
2023-06-14 21:41 ` Brett Creeley
2023-06-16 6:56 ` Tian, Kevin
2023-06-16 18:42 ` Brett Creeley
2023-06-02 22:03 ` [PATCH v10 vfio 3/7] vfio/pds: register with the pds_core PF Brett Creeley
2023-06-15 21:05 ` Shameerali Kolothum Thodi
2023-06-15 21:30 ` Brett Creeley
2023-06-16 7:04 ` Tian, Kevin
2023-06-16 19:01 ` Brett Creeley
2023-06-20 2:11 ` Tian, Kevin
2023-06-02 22:03 ` [PATCH v10 vfio 4/7] vfio/pds: Add VFIO live migration support Brett Creeley
2023-06-15 21:07 ` Shameerali Kolothum Thodi
2023-06-15 21:36 ` Brett Creeley
2023-06-16 8:06 ` Tian, Kevin
2023-06-17 4:45 ` Brett Creeley
2023-06-20 2:19 ` Tian, Kevin
2023-06-19 12:46 ` Jason Gunthorpe
2023-06-20 2:02 ` Tian, Kevin
2023-06-20 12:31 ` Jason Gunthorpe
2023-06-21 6:49 ` Tian, Kevin
2023-06-21 13:27 ` Jason Gunthorpe
2023-06-26 7:31 ` Tian, Kevin
2023-06-26 18:13 ` Jason Gunthorpe
2023-06-27 6:03 ` Tian, Kevin
2023-06-02 22:03 ` [PATCH v10 vfio 5/7] vfio/pds: Add support for dirty page tracking Brett Creeley
2023-06-02 22:03 ` [PATCH v10 vfio 6/7] vfio/pds: Add support for firmware recovery Brett Creeley
2023-06-16 8:24 ` Tian, Kevin
2023-06-17 0:47 ` Brett Creeley
2023-06-02 22:03 ` [PATCH v10 vfio 7/7] vfio/pds: Add Kconfig and documentation Brett Creeley
2023-06-16 8:25 ` Tian, Kevin
2023-06-16 20:05 ` Brett Creeley
2023-06-14 20:20 ` [PATCH v10 vfio 0/7] pds_vfio driver Alex Williamson
2023-06-16 6:47 ` Tian, Kevin [this message]
2023-06-16 20:06 ` Brett Creeley
2023-06-17 4:49 ` Brett Creeley
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=BN9PR11MB52764A3D962F65B25FCE88748C58A@BN9PR11MB5276.namprd11.prod.outlook.com \
--to=kevin.tian@intel.com \
--cc=alex.williamson@redhat.com \
--cc=brett.creeley@amd.com \
--cc=jgg@nvidia.com \
--cc=kvm@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=shameerali.kolothum.thodi@huawei.com \
--cc=shannon.nelson@amd.com \
--cc=yishaih@nvidia.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).