linux-kernel - Re: [PATCH 2/2] virtio_scsi: implement request batching

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Date:   Fri, 5 Jul 2019 09:52:16 +0200
From:   Hannes Reinecke <hare@...e.de>
To:     Paolo Bonzini <pbonzini@...hat.com>, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org
Cc:     jejb@...ux.ibm.com, martin.petersen@...cle.com,
        linux-scsi@...r.kernel.org, stefanha@...hat.com
Subject: Re: [PATCH 2/2] virtio_scsi: implement request batching

On 5/30/19 1:28 PM, Paolo Bonzini wrote:
> Adding the command and kicking the virtqueue so far was done one after
> another.  Make the kick optional, so that we can take into account SCMD_LAST.
> We also need a commit_rqs callback to kick the device if blk-mq aborts
> the submission before the last request is reached.
> 
> Suggested-by: Stefan Hajnoczi <stefanha@...hat.com>
> Signed-off-by: Paolo Bonzini <pbonzini@...hat.com>
> ---
>  drivers/scsi/virtio_scsi.c | 55 +++++++++++++++++++++++++++-----------
>  1 file changed, 40 insertions(+), 15 deletions(-)
> 
Reviewed-by: Hannes Reinecke <hare@...e.com>

Cheers,

Hannes
-- 
Dr. Hannes Reinecke		   Teamlead Storage & Networking
hare@...e.de			               +49 911 74053 688
SUSE LINUX GmbH, Maxfeldstr. 5, 90409 Nürnberg
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