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Commit ce7e4af7 authored by Andrew Vasquez's avatar Andrew Vasquez Committed by James Bottomley
Browse files

[SCSI] qla2xxx: Add change_queue_depth/type() API support. 



Signed-off-by: default avatarAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent 131736d3

drivers/scsi/qla2xxx/qla_os.c

+29 −0
Original line number Diff line number Diff line
@@ -111,6 +111,9 @@ static int qla2xxx_eh_host_reset(struct scsi_cmnd *); 
static int qla2x00_loop_reset(scsi_qla_host_t *ha);

static int qla2x00_device_reset(scsi_qla_host_t *, fc_port_t *);



static int qla2x00_change_queue_depth(struct scsi_device *, int);

static int qla2x00_change_queue_type(struct scsi_device *, int);



static struct scsi_host_template qla2x00_driver_template = {

	.module			= THIS_MODULE,

	.name			= "qla2xxx",
@@ -125,6 +128,8 @@ static struct scsi_host_template qla2x00_driver_template = { 


	.slave_alloc		= qla2xxx_slave_alloc,

	.slave_destroy		= qla2xxx_slave_destroy,

	.change_queue_depth	= qla2x00_change_queue_depth,

	.change_queue_type	= qla2x00_change_queue_type,

	.this_id		= -1,

	.cmd_per_lun		= 3,

	.use_clustering		= ENABLE_CLUSTERING,
@@ -151,6 +156,8 @@ static struct scsi_host_template qla24xx_driver_template = { 


	.slave_alloc		= qla2xxx_slave_alloc,

	.slave_destroy		= qla2xxx_slave_destroy,

	.change_queue_depth	= qla2x00_change_queue_depth,

	.change_queue_type	= qla2x00_change_queue_type,

	.this_id		= -1,

	.cmd_per_lun		= 3,

	.use_clustering		= ENABLE_CLUSTERING,
@@ -1109,6 +1116,28 @@ qla2xxx_slave_destroy(struct scsi_device *sdev) 
	sdev->hostdata = NULL;

}



static int

qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth)

{

	scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);

	return sdev->queue_depth;

}



static int

qla2x00_change_queue_type(struct scsi_device *sdev, int tag_type)

{

	if (sdev->tagged_supported) {

		scsi_set_tag_type(sdev, tag_type);

		if (tag_type)

			scsi_activate_tcq(sdev, sdev->queue_depth);

		else

			scsi_deactivate_tcq(sdev, sdev->queue_depth);

	} else

		tag_type = 0;



	return tag_type;

}



/**

 * qla2x00_config_dma_addressing() - Configure OS DMA addressing method.

 * @ha: HA context