linux-kernel - Re: [PATCH v4 0/6] features provisioning fixes and mlx5

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Message-ID: <417def2e-dc9b-231f-bc49-52e4b8952c6b@oracle.com>
Date:   Mon, 6 Feb 2023 15:22:10 -0800
From:   Si-Wei Liu <si-wei.liu@...cle.com>
To:     mst@...hat.com, jasowang@...hat.com, parav@...dia.com,
        elic@...dia.com
Cc:     virtualization@...ts.linux-foundation.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 0/6] features provisioning fixes and mlx5_vdpa support

Apologies folks. Please ignore the patches posted with an incorrect 
"[PATCH v3 ...]" subject in this thread. I've resent the patch with 
subject line corrected:

Message-Id: 1675725124-7375-1-git-send-email-si-wei.liu@...cle.com

Sorry again,
-Siwei

On 2/6/2023 3:07 PM, Si-Wei Liu wrote:
> This patchset is pre-requisite to export and provision device
> config attributes and features for vdpa live migration, in a way
> backward and forward compatibility can be retained. The follow up
> work [1] will need to be built around the new feature provisioning
> uAPI, with which it's easier to formalize migration compatibility
> support at the driver level.
>
> Thanks,
> -Siwei
>
> [1] [PATCH v3 0/4] vDPA: initial config export via "vdpa dev show"
> https://lore.kernel.org/virtualization/1666392237-4042-1-git-send-email-si-wei.liu@oracle.com/
>
> ---
> v3 -> v4:
>    - rewrite while loop to a for loop per mst's call
>    - fix wording in the subject of patch
> v2 -> v3:
>    - fix incorrect reference of local variable in future patch
>    - prohibit per-device bitmask macro from exposure in uapi header
>    - add fixes tag
> v1 -> v2:
>    - include specific attribute info to error message
>    - move conditional feature presence in mlx5_vdpa config space
>      to a separate patch
>    - remove redundant check
> ---
>
> Si-Wei Liu (6):
>    vdpa: fix improper error message when adding vdpa dev
>    vdpa: conditionally read STATUS in config space
>    vdpa: validate provisioned device features against specified attribute
>    vdpa: validate device feature provisioning against supported class
>    vdpa/mlx5: make MTU/STATUS presence conditional on feature bits
>    vdpa/mlx5: support device features provisioning
>
>   drivers/vdpa/mlx5/net/mlx5_vnet.c |  71 ++++++++++++++++++++------
>   drivers/vdpa/vdpa.c               | 103 ++++++++++++++++++++++++++++++++------
>   2 files changed, 144 insertions(+), 30 deletions(-)
>