linux-kernel - Re: [smartpqi updates V2 PATCH 5/9] smartpqi: add SCSI cmd info for resets

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Date:   Tue, 13 Jul 2021 20:21:14 -0500
From:   John Donnelly <john.p.donnelly@...cle.com>
To:     Don Brace <don.brace@...rochip.com>, hch@...radead.org,
        martin.peterson@...cle.com, jejb@...ux.vnet.ibm.com,
        linux-scsi@...r.kernel.org
Cc:     Kevin.Barnett@...rochip.com, scott.teel@...rochip.com,
        Justin.Lindley@...rochip.com, scott.benesh@...rochip.com,
        gerry.morong@...rochip.com, mahesh.rajashekhara@...rochip.com,
        mike.mcgowen@...rochip.com, murthy.bhat@...rochip.com,
        balsundar.p@...rochip.com, joseph.szczypek@....com,
        jeff@...onical.com, POSWALD@...e.com, mwilck@...e.com,
        pmenzel@...gen.mpg.de, linux-kernel@...r.kernel.org
Subject: Re: [smartpqi updates V2 PATCH 5/9] smartpqi: add SCSI cmd info for
 resets

On 7/13/21 4:02 PM, Don Brace wrote:
> From: Murthy Bhat <Murthy.Bhat@...rochip.com>
> 
> Report on SCSI command that has triggered the reset.
>   - Also add check for NULL SCSI commands resulting from
>     issuing sg_reset when there is no outstanding commands.
> 
>     Example:
>     sg_reset -d /dev/sgXY
>     smartpqi 0000:39:00.0: resetting scsi 4:0:1:0 due to cmd 0x12
> 
> Reviewed-by: Kevin Barnett <kevin.barnett@...rochip.com>
> Reviewed-by: Mike McGowen <mike.mcgowen@...rochip.com>
> Reviewed-by: Scott Benesh <scott.benesh@...rochip.com>
> Reviewed-by: Scott Teel <scott.teel@...rochip.com>
> Signed-off-by: Murthy Bhat <Murthy.Bhat@...rochip.com>
> Signed-off-by: Don Brace <don.brace@...rochip.com>


Acked-by:  John Donnelly <john.p.donnelly@...cle.com>

> ---
>   drivers/scsi/smartpqi/smartpqi_init.c | 6 ++++--
>   1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c
> index 29382b290243..ffc7ca221e27 100644
> --- a/drivers/scsi/smartpqi/smartpqi_init.c
> +++ b/drivers/scsi/smartpqi/smartpqi_init.c
> @@ -6033,8 +6033,10 @@ static int pqi_eh_device_reset_handler(struct scsi_cmnd *scmd)
>   	mutex_lock(&ctrl_info->lun_reset_mutex);
>   
>   	dev_err(&ctrl_info->pci_dev->dev,
> -		"resetting scsi %d:%d:%d:%d\n",
> -		shost->host_no, device->bus, device->target, device->lun);
> +		"resetting scsi %d:%d:%d:%d due to cmd 0x%02x\n",
> +		shost->host_no,
> +		device->bus, device->target, device->lun,
> +		scmd->cmd_len > 0 ? scmd->cmnd[0] : 0xff);
>   
>   	pqi_check_ctrl_health(ctrl_info);
>   	if (pqi_ctrl_offline(ctrl_info))
>