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From: Stefan Hajnoczi <stefanha@redhat.com>
To: Mike Christie <michael.christie@oracle.com>
Cc: target-devel@vger.kernel.org, linux-scsi@vger.kernel.org,
	pbonzini@redhat.com, jasowang@redhat.com, mst@redhat.com,
	sgarzare@redhat.com, virtualization@lists.linux-foundation.org
Subject: Re: [PATCH 2/9] vhost: move vhost worker creation to kick setup
Date: Thu, 3 Jun 2021 11:28:41 +0100	[thread overview]
Message-ID: <YLiu2SSYO6OFvMej@stefanha-x1.localdomain> (raw)
In-Reply-To: <20210525180600.6349-3-michael.christie@oracle.com>

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On Tue, May 25, 2021 at 01:05:53PM -0500, Mike Christie wrote:
> The next patch will add new ioctls that allows userspace to create workers
> and bind them to devs and vqs after VHOST_SET_OWNER. To support older
> tools, newer tools that want to go wild with worker threads, and newer
> tools that want the old/default behavior this patch moves the default
> worker setup to the kick setup.
> 
> After the first vq's kick/poll setup is done we could start to get works
> queued, so this is the point when we must have a worker setup. If we are
> using older tools or the newer tools just want the default single vhost
> thread per dev behavior then it will automatically be done here. If the
> tools are using the newer ioctls that have already created the workers
> then we also detect that here and do nothing.
> 
> Signed-off-by: Mike Christie <michael.christie@oracle.com>
> ---
>  drivers/vhost/vhost.c | 23 ++++++++++++++++-------
>  1 file changed, 16 insertions(+), 7 deletions(-)

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

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WARNING: multiple messages have this Message-ID
From: Stefan Hajnoczi <stefanha@redhat.com>
To: Mike Christie <michael.christie@oracle.com>
Cc: linux-scsi@vger.kernel.org, mst@redhat.com,
	virtualization@lists.linux-foundation.org,
	target-devel@vger.kernel.org, pbonzini@redhat.com
Subject: Re: [PATCH 2/9] vhost: move vhost worker creation to kick setup
Date: Thu, 3 Jun 2021 11:28:41 +0100	[thread overview]
Message-ID: <YLiu2SSYO6OFvMej@stefanha-x1.localdomain> (raw)
In-Reply-To: <20210525180600.6349-3-michael.christie@oracle.com>


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On Tue, May 25, 2021 at 01:05:53PM -0500, Mike Christie wrote:
> The next patch will add new ioctls that allows userspace to create workers
> and bind them to devs and vqs after VHOST_SET_OWNER. To support older
> tools, newer tools that want to go wild with worker threads, and newer
> tools that want the old/default behavior this patch moves the default
> worker setup to the kick setup.
> 
> After the first vq's kick/poll setup is done we could start to get works
> queued, so this is the point when we must have a worker setup. If we are
> using older tools or the newer tools just want the default single vhost
> thread per dev behavior then it will automatically be done here. If the
> tools are using the newer ioctls that have already created the workers
> then we also detect that here and do nothing.
> 
> Signed-off-by: Mike Christie <michael.christie@oracle.com>
> ---
>  drivers/vhost/vhost.c | 23 ++++++++++++++++-------
>  1 file changed, 16 insertions(+), 7 deletions(-)

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

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_______________________________________________
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Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization

  reply	other threads:[~2021-06-03 10:28 UTC|newest]

Thread overview: 64+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-25 18:05 vhost: multiple worker support Mike Christie
2021-05-25 18:05 ` Mike Christie
2021-05-25 18:05 ` [PATCH 1/9] vhost: move worker thread fields to new struct Mike Christie
2021-05-25 18:05   ` Mike Christie
2021-06-03 10:16   ` Stefan Hajnoczi
2021-06-03 10:16     ` Stefan Hajnoczi
2021-05-25 18:05 ` [PATCH 2/9] vhost: move vhost worker creation to kick setup Mike Christie
2021-05-25 18:05   ` Mike Christie
2021-06-03 10:28   ` Stefan Hajnoczi [this message]
2021-06-03 10:28     ` Stefan Hajnoczi
2021-05-25 18:05 ` [PATCH 3/9] vhost: modify internal functions to take a vhost_worker Mike Christie
2021-05-25 18:05   ` Mike Christie
2021-06-03 10:45   ` Stefan Hajnoczi
2021-06-03 10:45     ` Stefan Hajnoczi
2021-05-25 18:05 ` [PATCH 4/9] vhost: allow vhost_polls to use different vhost_workers Mike Christie
2021-05-25 18:05   ` Mike Christie
2021-06-03 13:51   ` Stefan Hajnoczi
2021-06-03 13:51     ` Stefan Hajnoczi
2021-05-25 18:05 ` [PATCH 5/9] vhost-scsi: flush IO vqs then send TMF rsp Mike Christie
2021-05-25 18:05   ` Mike Christie
2021-06-03 13:54   ` Stefan Hajnoczi
2021-06-03 13:54     ` Stefan Hajnoczi
2021-05-25 18:05 ` [PATCH 6/9] vhost-scsi: make SCSI cmd completion per vq Mike Christie
2021-05-25 18:05   ` Mike Christie
2021-06-03 13:57   ` Stefan Hajnoczi
2021-06-03 13:57     ` Stefan Hajnoczi
2021-05-25 18:05 ` [PATCH 7/9] vhost: allow userspace to create workers Mike Christie
2021-05-25 18:05   ` Mike Christie
2021-06-03 14:30   ` Stefan Hajnoczi
2021-06-03 14:30     ` Stefan Hajnoczi
2021-06-05 23:53     ` michael.christie
2021-06-05 23:53       ` michael.christie
2021-06-07 15:19       ` Stefan Hajnoczi
2021-06-07 15:19         ` Stefan Hajnoczi
2021-06-09 21:03         ` Mike Christie
2021-06-09 21:03           ` Mike Christie
2021-06-10  8:06           ` Stefan Hajnoczi
2021-06-10  8:06             ` Stefan Hajnoczi
2021-06-18  2:49             ` Mike Christie
2021-06-18  2:49               ` Mike Christie
2021-06-21 13:41               ` Stefan Hajnoczi
2021-06-21 13:41                 ` Stefan Hajnoczi
2021-05-25 18:05 ` [PATCH 8/9] vhost: add vhost_dev pointer to vhost_work Mike Christie
2021-05-25 18:05   ` Mike Christie
2021-06-03 14:31   ` Stefan Hajnoczi
2021-06-03 14:31     ` Stefan Hajnoczi
2021-05-25 18:06 ` [PATCH 9/9] vhost: support sharing workers across devs Mike Christie
2021-05-25 18:06   ` Mike Christie
2021-06-03 14:32   ` Stefan Hajnoczi
2021-06-03 14:32     ` Stefan Hajnoczi
2021-06-07  2:18     ` Jason Wang
2021-06-07  2:18       ` Jason Wang
2021-06-03 10:13 ` vhost: multiple worker support Stefan Hajnoczi
2021-06-03 10:13   ` Stefan Hajnoczi
2021-06-03 18:45   ` Mike Christie
2021-06-03 18:45     ` Mike Christie
2021-06-03 14:37 ` Stefan Hajnoczi
2021-06-03 14:37   ` Stefan Hajnoczi
2021-06-03 22:16   ` Mike Christie
2021-06-03 22:16     ` Mike Christie
2021-06-05 22:40     ` michael.christie
2021-06-05 22:40       ` michael.christie
2021-06-07 15:23       ` Stefan Hajnoczi
2021-06-07 15:23         ` Stefan Hajnoczi

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