linux-kernel - Re: [PATCH vhost v2 00/16] vdpa: Add support for vq descriptor mappings

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20231002101612.GB7059@unreal>
Date:   Mon, 2 Oct 2023 13:16:12 +0300
From:   Leon Romanovsky <leon@...nel.org>
To:     Dragos Tatulea <dtatulea@...dia.com>
Cc:     eperezma@...hat.com, gal@...dia.com,
        "Michael S . Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        Saeed Mahameed <saeedm@...dia.com>,
        Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
        virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org
Subject: Re: [PATCH vhost v2 00/16] vdpa: Add support for vq descriptor
 mappings

On Thu, Sep 28, 2023 at 07:45:11PM +0300, Dragos Tatulea wrote:
> This patch series adds support for vq descriptor table mappings which
> are used to improve vdpa live migration downtime. The improvement comes
> from using smaller mappings which take less time to create and destroy
> in hw.
> 
> The first part adds the vdpa core changes from Si-Wei [0].
> 
> The second part adds support in mlx5_vdpa:
> - Refactor the mr code to be able to cleanly add descriptor mappings.
> - Add hardware descriptor mr support.
> - Properly update iotlb for cvq during ASID switch.
> 
> Changes in v2:
> 
> - The "vdpa/mlx5: Enable hw support for vq descriptor mapping" change
>   was split off into two patches to avoid merge conflicts into the tree
>   of Linus.
> 
>   The first patch contains only changes for mlx5_ifc.h. This must be
>   applied into the mlx5-next tree [1] first. Once this patch is applied
>   on mlx5-next, the change has to be pulled fom mlx5-next into the vhost
>   tree and only then the remaining patches can be applied.
> 
> [0] https://lore.kernel.org/virtualization/1694248959-13369-1-git-send-email-si-wei.liu@oracle.com
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git/log/?h=mlx5-next
> 
> Dragos Tatulea (13):
>   vdpa/mlx5: Expose descriptor group mkey hw capability

I prepared shared branch with this patch.
https://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git/log/?h=mlx5-vhost

Thanks