linux-kernel - Re: [PATCH] target: Handle GET_EVENT_STATUS

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Message-ID: <1336094646.22393.102.camel@haakon2.linux-iscsi.org>
Date:	Thu, 03 May 2012 18:24:06 -0700
From:	"Nicholas A. Bellinger" <nab@...ux-iscsi.org>
To:	Stefan Hajnoczi <stefanha@...ux.vnet.ibm.com>
Cc:	target-devel@...r.kernel.org, linux-scsi@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] target: Handle GET_EVENT_STATUS_NOTIFICATION
 passthrough

On Mon, 2012-04-30 at 16:35 +0100, Stefan Hajnoczi wrote:
> The SCSI MMC GET_EVENT_STATUS_NOTIFICATION command can be used to find
> out about media change, among other things.  This patch adds it to the
> command sequencer so that PSCSI CD-ROM passthrough works with modern
> Linux guests that issue this command.
> 
> Tested-by: Cong Meng <mengcong@...ibm.com>
> Signed-off-by: Stefan Hajnoczi <stefanha@...ux.vnet.ibm.com>
> ---
>  drivers/target/target_core_transport.c |    4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
> index a953ca0..5b83fd2 100644
> --- a/drivers/target/target_core_transport.c
> +++ b/drivers/target/target_core_transport.c
> @@ -3146,6 +3146,10 @@ static int transport_generic_cmd_sequencer(
>  			cmd->sam_task_attr = MSG_HEAD_TAG;
>  		cmd->se_cmd_flags |= SCF_SCSI_CONTROL_SG_IO_CDB;
>  		break;
> +	case GET_EVENT_STATUS_NOTIFICATION:
> +		size = (cdb[7] << 8) | cdb[8];
> +		cmd->se_cmd_flags |= SCF_SCSI_CONTROL_SG_IO_CDB;
> +		break;
>  	default:
>  		pr_warn("TARGET_CORE[%s]: Unsupported SCSI Opcode"
>  			" 0x%02x, sending CHECK_CONDITION.\n",

Applied to lio-core, and will get this added into for-next for 3.5-rc1

Thanks Cong + Stefan!

--nab

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