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Diffstat (limited to 'drivers/scsi/53c700.c')
-rw-r--r--drivers/scsi/53c700.c41
1 files changed, 3 insertions, 38 deletions
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index aa915da2a5e5..82abfce1cb42 100644
--- a/drivers/scsi/53c700.c
+++ b/drivers/scsi/53c700.c
@@ -176,7 +176,6 @@ STATIC int NCR_700_slave_alloc(struct scsi_device *SDpnt);
STATIC int NCR_700_slave_configure(struct scsi_device *SDpnt);
STATIC void NCR_700_slave_destroy(struct scsi_device *SDpnt);
static int NCR_700_change_queue_depth(struct scsi_device *SDpnt, int depth);
-static int NCR_700_change_queue_type(struct scsi_device *SDpnt, int depth);
STATIC struct device_attribute *NCR_700_dev_attrs[];
@@ -326,7 +325,6 @@ NCR_700_detect(struct scsi_host_template *tpnt,
tpnt->slave_destroy = NCR_700_slave_destroy;
tpnt->slave_alloc = NCR_700_slave_alloc;
tpnt->change_queue_depth = NCR_700_change_queue_depth;
- tpnt->change_queue_type = NCR_700_change_queue_type;
tpnt->use_blk_tags = 1;
if(tpnt->name == NULL)
@@ -904,8 +902,8 @@ process_message(struct Scsi_Host *host, struct NCR_700_Host_Parameters *hostdata
hostdata->tag_negotiated &= ~(1<<scmd_id(SCp));
SCp->device->tagged_supported = 0;
+ SCp->device->simple_tags = 0;
scsi_change_queue_depth(SCp->device, host->cmd_per_lun);
- scsi_set_tag_type(SCp->device, 0);
} else {
shost_printk(KERN_WARNING, host,
"(%d:%d) Unexpected REJECT Message %s\n",
@@ -1818,8 +1816,8 @@ NCR_700_queuecommand_lck(struct scsi_cmnd *SCp, void (*done)(struct scsi_cmnd *)
hostdata->tag_negotiated &= ~(1<<scmd_id(SCp));
}
- if((hostdata->tag_negotiated &(1<<scmd_id(SCp)))
- && scsi_get_tag_type(SCp->device)) {
+ if ((hostdata->tag_negotiated & (1<<scmd_id(SCp))) &&
+ SCp->device->simple_tags) {
slot->tag = SCp->request->tag;
CDEBUG(KERN_DEBUG, SCp, "sending out tag %d, slot %p\n",
slot->tag, slot);
@@ -2082,39 +2080,6 @@ NCR_700_change_queue_depth(struct scsi_device *SDp, int depth)
return scsi_change_queue_depth(SDp, depth);
}
-static int NCR_700_change_queue_type(struct scsi_device *SDp, int tag_type)
-{
- int change_tag = ((tag_type ==0 && scsi_get_tag_type(SDp) != 0)
- || (tag_type != 0 && scsi_get_tag_type(SDp) == 0));
- struct NCR_700_Host_Parameters *hostdata =
- (struct NCR_700_Host_Parameters *)SDp->host->hostdata[0];
-
- /* We have a global (per target) flag to track whether TCQ is
- * enabled, so we'll be turning it off for the entire target here.
- * our tag algorithm will fail if we mix tagged and untagged commands,
- * so quiesce the device before doing this */
- if (change_tag)
- scsi_target_quiesce(SDp->sdev_target);
-
- scsi_set_tag_type(SDp, tag_type);
- if (!tag_type) {
- /* shift back to the default unqueued number of commands
- * (the user can still raise this) */
- scsi_change_queue_depth(SDp, SDp->host->cmd_per_lun);
- hostdata->tag_negotiated &= ~(1 << sdev_id(SDp));
- } else {
- /* Here, we cleared the negotiation flag above, so this
- * will force the driver to renegotiate */
- scsi_change_queue_depth(SDp, SDp->queue_depth);
- if (change_tag)
- NCR_700_set_tag_neg_state(SDp, NCR_700_START_TAG_NEGOTIATION);
- }
- if (change_tag)
- scsi_target_resume(SDp->sdev_target);
-
- return tag_type;
-}
-
static ssize_t
NCR_700_show_active_tags(struct device *dev, struct device_attribute *attr, char *buf)
{