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Commit 4bcde509 authored by Adam Radford's avatar Adam Radford Committed by James Bottomley
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[SCSI] megaraid_sas: Add .change_queue_depth support 



Signed-off-by: default avatarAdam Radford <aradford@gmail.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent db21b6f4

drivers/scsi/megaraid/megaraid_sas_base.c

+16 −0
Original line number Diff line number Diff line
@@ -54,6 +54,7 @@ 
#include <scsi/scsi_cmnd.h>

#include <scsi/scsi_device.h>

#include <scsi/scsi_host.h>

#include <scsi/scsi_tcq.h>

#include "megaraid_sas_fusion.h"

#include "megaraid_sas.h"
@@ -2057,6 +2058,20 @@ megasas_service_aen(struct megasas_instance *instance, struct megasas_cmd *cmd) 
	}

}



static int megasas_change_queue_depth(struct scsi_device *sdev,

				      int queue_depth, int reason)

{

	if (reason != SCSI_QDEPTH_DEFAULT)

		return -EOPNOTSUPP;



	if (queue_depth > sdev->host->can_queue)

		queue_depth = sdev->host->can_queue;

	scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev),

				queue_depth);



	return queue_depth;

}



/*

 * Scsi host template for megaraid_sas driver

 */
@@ -2074,6 +2089,7 @@ static struct scsi_host_template megasas_template = { 
	.eh_timed_out = megasas_reset_timer,

	.bios_param = megasas_bios_param,

	.use_clustering = ENABLE_CLUSTERING,

	.change_queue_depth = megasas_change_queue_depth,

};



/**