From: Brett Creeley <bcreeley@amd.com>
To: "Tian, Kevin" <kevin.tian@intel.com>,
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 13:06:04 -0700 [thread overview]
Message-ID: <91f8f8ba-dfc1-2d42-3aa7-f7c5eebf9a56@amd.com> (raw)
In-Reply-To: <BN9PR11MB52764A3D962F65B25FCE88748C58A@BN9PR11MB5276.namprd11.prod.outlook.com>
On 6/15/2023 11:47 PM, Tian, Kevin wrote:
> Caution: This message originated from an External Source. Use proper caution when opening attachments, clicking links, or responding.
>
>
>> 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?
Just a mistake in the drawing. I can fix it. Thanks.
>
next prev parent reply other threads:[~2023-06-16 20:06 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
2023-06-16 20:06 ` Brett Creeley [this message]
2023-06-17 4:49 ` Brett Creeley
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