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From: Jason Wang <jasowang@redhat.com>
To: Mike Christie <michael.christie@oracle.com>,
	martin.petersen@oracle.com, linux-scsi@vger.kernel.org,
	target-devel@vger.kernel.org, mst@redhat.com,
	pbonzini@redhat.com, stefanha@redhat.com,
	virtualization@lists.linux-foundation.org
Subject: Re: [PATCH 01/17] vhost scsi: add lun parser helper
Date: Mon, 26 Oct 2020 03:33:01 +0000
Message-ID: <eef46e20-ed8f-0fb4-be9f-a0f5bd1edfa0@redhat.com> (raw)
In-Reply-To: <1603326903-27052-2-git-send-email-michael.christie@oracle.com>


On 2020/10/22 上午8:34, Mike Christie wrote:
> Move code to parse lun from req's lun_buf to helper, so tmf code
> can use it in the next patch.
>
> Signed-off-by: Mike Christie <michael.christie@oracle.com>
> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
>   drivers/vhost/scsi.c | 9 +++++++--
>   1 file changed, 7 insertions(+), 2 deletions(-)


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


>
> diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
> index b22adf0..0ea78d0 100644
> --- a/drivers/vhost/scsi.c
> +++ b/drivers/vhost/scsi.c
> @@ -907,6 +907,11 @@ static void vhost_scsi_submission_work(struct work_struct *work)
>   	return ret;
>   }
>   
> +static u16 vhost_buf_to_lun(u8 *lun_buf)
> +{
> +	return ((lun_buf[2] << 8) | lun_buf[3]) & 0x3FFF;
> +}
> +
>   static void
>   vhost_scsi_handle_vq(struct vhost_scsi *vs, struct vhost_virtqueue *vq)
>   {
> @@ -1045,12 +1050,12 @@ static void vhost_scsi_submission_work(struct work_struct *work)
>   			tag = vhost64_to_cpu(vq, v_req_pi.tag);
>   			task_attr = v_req_pi.task_attr;
>   			cdb = &v_req_pi.cdb[0];
> -			lun = ((v_req_pi.lun[2] << 8) | v_req_pi.lun[3]) & 0x3FFF;
> +			lun = vhost_buf_to_lun(v_req_pi.lun);
>   		} else {
>   			tag = vhost64_to_cpu(vq, v_req.tag);
>   			task_attr = v_req.task_attr;
>   			cdb = &v_req.cdb[0];
> -			lun = ((v_req.lun[2] << 8) | v_req.lun[3]) & 0x3FFF;
> +			lun = vhost_buf_to_lun(v_req.lun);
>   		}
>   		/*
>   		 * Check that the received CDB size does not exceeded our

  reply index

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-22  0:34 [PATCH 00/17 V3] vhost: fix scsi cmd handling and cgroup support Mike Christie
2020-10-22  0:34 ` [PATCH 01/17] vhost scsi: add lun parser helper Mike Christie
2020-10-26  3:33   ` Jason Wang [this message]
2020-10-22  0:34 ` [PATCH 02/17] vhost: remove work arg from vhost_work_flush Mike Christie
2020-10-22  0:51   ` Chaitanya Kulkarni
2020-10-22  0:34 ` [PATCH 03/17] vhost net: use goto error handling in open Mike Christie
2020-10-22  0:45   ` Chaitanya Kulkarni
2020-10-26  3:34   ` Jason Wang
2020-10-22  0:34 ` [PATCH 04/17] vhost: prep vhost_dev_init users to handle failures Mike Christie
2020-10-22  5:22   ` kernel test robot
2020-10-23 16:15   ` Mike Christie
2020-11-02  5:57   ` Jason Wang
2020-11-03 10:04   ` Dan Carpenter
2020-10-22  0:34 ` [PATCH 05/17] vhost: move vq iovec allocation to dev init time Mike Christie
2020-10-22  0:34 ` [PATCH 06/17] vhost: support delayed vq creation Mike Christie
2020-10-22  0:34 ` [PATCH 07/17] vhost scsi: support delayed IO " Mike Christie
2020-10-26  3:51   ` Jason Wang
2020-10-27  5:47     ` Mike Christie
2020-10-28  1:55       ` Jason Wang
2020-10-30  8:47       ` Michael S. Tsirkin
2020-10-30 16:30         ` Mike Christie
2020-10-30 17:26           ` Mike Christie
2020-11-01 22:06         ` Mike Christie
2020-11-02  6:36         ` Jason Wang
2020-11-02  6:49           ` Jason Wang
2020-11-02 16:19             ` Mike Christie
2020-10-22  0:34 ` [PATCH 08/17] vhost scsi: alloc cmds per vq instead of session Mike Christie
2020-10-22  0:34 ` [PATCH 09/17] vhost scsi: fix cmd completion race Mike Christie
2020-10-27 13:07   ` Maurizio Lombardi
2020-10-30  8:51   ` Michael S. Tsirkin
2020-10-30 16:04     ` Paolo Bonzini
2020-10-22  0:34 ` [PATCH 10/17] vhost scsi: Add support for LUN resets Mike Christie
2020-10-22  0:34 ` [PATCH 11/17] vhost scsi: remove extra flushes Mike Christie
2020-10-22  0:34 ` [PATCH 12/17] vhost poll: fix coding style Mike Christie
2020-10-22  0:39   ` Chaitanya Kulkarni
2020-10-22  0:34 ` [PATCH 13/17] vhost: support multiple worker threads Mike Christie
2020-10-22  0:35 ` [PATCH 14/17] vhost: poll support support multiple workers Mike Christie
2020-10-22  0:35 ` [PATCH 15/17] host: support delayed vq creation Mike Christie
2020-10-22  0:50   ` Mike Christie
2020-10-22  0:35 ` [PATCH 16/17] vhost scsi: multiple worker support Mike Christie
2020-10-22  0:35 ` [PATCH 17/17] vhost scsi: drop submission workqueue Mike Christie
2020-10-29 21:47 ` [PATCH 00/17 V3] vhost: fix scsi cmd handling and cgroup support Michael S. Tsirkin
2020-10-29 22:19   ` Mike Christie

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