linux-kernel - Re: [PATCH vhost v4 13/15] vdpa/mlx5: Use vq suspend/resume during .set

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Message-ID: <CACGkMEtbGurh-HUb3eDcH74y7YDnvd06K8=MvRHj+4NLyaJ3Ag@mail.gmail.com>
Date: Wed, 20 Dec 2023 11:47:05 +0800
From: Jason Wang <jasowang@...hat.com>
To: Dragos Tatulea <dtatulea@...dia.com>
Cc: "Michael S . Tsirkin" <mst@...hat.com>, Eugenio Perez Martin <eperezma@...hat.com>, 
	Si-Wei Liu <si-wei.liu@...cle.com>, Saeed Mahameed <saeedm@...dia.com>, 
	Leon Romanovsky <leon@...nel.org>, virtualization@...ts.linux-foundation.org, 
	Gal Pressman <gal@...dia.com>, kvm@...r.kernel.org, linux-kernel@...r.kernel.org, 
	Parav Pandit <parav@...dia.com>, Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
Subject: Re: [PATCH vhost v4 13/15] vdpa/mlx5: Use vq suspend/resume during .set_map

On Wed, Dec 20, 2023 at 2:10 AM Dragos Tatulea <dtatulea@...dia.com> wrote:
>
> Instead of tearing down and setting up vq resources, use vq
> suspend/resume during .set_map to speed things up a bit.
>
> The vq mr is updated with the new mapping while the vqs are suspended.
>
> If the device doesn't support resumable vqs, do the old teardown and
> setup dance.
>
> Reviewed-by: Gal Pressman <gal@...dia.com>
> Acked-by: Eugenio Pérez <eperezma@...hat.com>
> Signed-off-by: Dragos Tatulea <dtatulea@...dia.com>
> ---

Acked-by: Jason Wang <jasowang@...hat.com>

Thanks