Re: [PATCH v2 01/17] ibmvfc: add vhost fields and defaults for MQ enablement

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On 12/1/20 6:53 PM, Tyrel Datwyler wrote:
> Introduce several new vhost fields for managing MQ state of the adapter
> as well as initial defaults for MQ enablement.
> 
> Signed-off-by: Tyrel Datwyler <tyreld@xxxxxxxxxxxxx>
> ---
>  drivers/scsi/ibmvscsi/ibmvfc.c |  9 ++++++++-
>  drivers/scsi/ibmvscsi/ibmvfc.h | 13 +++++++++++--
>  2 files changed, 19 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
> index 42e4d35e0d35..f1d677a7423d 100644
> --- a/drivers/scsi/ibmvscsi/ibmvfc.c
> +++ b/drivers/scsi/ibmvscsi/ibmvfc.c
> @@ -5161,12 +5161,13 @@ static int ibmvfc_probe(struct vio_dev *vdev, const struct vio_device_id *id)
>  	}
>  
>  	shost->transportt = ibmvfc_transport_template;
> -	shost->can_queue = max_requests;
> +	shost->can_queue = (max_requests / IBMVFC_SCSI_HW_QUEUES);

This doesn't look right. can_queue is the SCSI host queue depth, not the MQ queue depth.

>  	shost->max_lun = max_lun;
>  	shost->max_id = max_targets;
>  	shost->max_sectors = IBMVFC_MAX_SECTORS;
>  	shost->max_cmd_len = IBMVFC_MAX_CDB_LEN;
>  	shost->unique_id = shost->host_no;
> +	shost->nr_hw_queues = IBMVFC_SCSI_HW_QUEUES;
>  
>  	vhost = shost_priv(shost);
>  	INIT_LIST_HEAD(&vhost->sent);



-- 
Brian King
Power Linux I/O
IBM Linux Technology Center




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