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scsi: remove ->change_queue_type method

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Since we got rid of ordered tag support in 2010 the prime use case of
switching on and off ordered tags has been obsolete.  The other function
of enabling/disabling tagging entirely has only been correctly implemented
by the 53c700 driver and isn't generally useful.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com
Reviewed-by: Hannes Reinecke <hare@suse.de>
This commit is contained in:
Christoph Hellwig 2014-11-24 15:36:18 +01:00
parent 79855d1785
commit efc3c1df5f
25 changed files with 4 additions and 171 deletions
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1
drivers/infiniband/ulp/srp/ib_srp.c
View File

@ -2740,7 +2740,6 @@ static struct scsi_host_template srp_template = {
.info = srp_target_info,
.queuecommand = srp_queuecommand,
.change_queue_depth = srp_change_queue_depth,
.change_queue_type = scsi_change_queue_type,
.eh_abort_handler = srp_abort,
.eh_device_reset_handler = srp_reset_device,
.eh_host_reset_handler = srp_reset_host,

35
drivers/scsi/53c700.c
View File

@ -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)
@ -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)
{

1
drivers/scsi/aic94xx/aic94xx_init.c
View File

@ -63,7 +63,6 @@ static struct scsi_host_template aic94xx_sht = {
.scan_finished = asd_scan_finished,
.scan_start = asd_scan_start,
.change_queue_depth = sas_change_queue_depth,
.change_queue_type = sas_change_queue_type,
.bios_param = sas_bios_param,
.can_queue = 1,
.cmd_per_lun = 1,

1
drivers/scsi/bnx2fc/bnx2fc_fcoe.c
View File

@ -2785,7 +2785,6 @@ static struct scsi_host_template bnx2fc_shost_template = {
.eh_host_reset_handler = fc_eh_host_reset,
.slave_alloc = fc_slave_alloc,
.change_queue_depth = scsi_change_queue_depth,
.change_queue_type = scsi_change_queue_type,
.this_id = -1,
.cmd_per_lun = 3,
.use_clustering = ENABLE_CLUSTERING,

1
drivers/scsi/esas2r/esas2r_main.c
View File

@ -255,7 +255,6 @@ static struct scsi_host_template driver_template = {
.emulated = 0,
.proc_name = ESAS2R_DRVR_NAME,
.change_queue_depth = scsi_change_queue_depth,
.change_queue_type = scsi_change_queue_type,
.max_sectors = 0xFFFF,
.use_blk_tags = 1,
};

1
drivers/scsi/fcoe/fcoe.c
View File

@ -281,7 +281,6 @@ static struct scsi_host_template fcoe_shost_template = {
.eh_host_reset_handler = fc_eh_host_reset,
.slave_alloc = fc_slave_alloc,
.change_queue_depth = scsi_change_queue_depth,
.change_queue_type = scsi_change_queue_type,
.this_id = -1,
.cmd_per_lun = 3,
.can_queue = FCOE_MAX_OUTSTANDING_COMMANDS,

1
drivers/scsi/fnic/fnic_main.c
View File

@ -111,7 +111,6 @@ static struct scsi_host_template fnic_host_template = {
.eh_host_reset_handler = fnic_host_reset,
.slave_alloc = fnic_slave_alloc,
.change_queue_depth = scsi_change_queue_depth,
.change_queue_type = scsi_change_queue_type,
.this_id = -1,
.cmd_per_lun = 3,
.can_queue = FNIC_DFLT_IO_REQ,

1
drivers/scsi/ibmvscsi/ibmvfc.c
View File

@ -3089,7 +3089,6 @@ static struct scsi_host_template driver_template = {
.target_alloc = ibmvfc_target_alloc,
.scan_finished = ibmvfc_scan_finished,
.change_queue_depth = ibmvfc_change_queue_depth,
.change_queue_type = scsi_change_queue_type,
.cmd_per_lun = 16,
.can_queue = IBMVFC_MAX_REQUESTS_DEFAULT,
.this_id = -1,

25
drivers/scsi/ipr.c
View File

@ -4345,30 +4345,6 @@ static int ipr_change_queue_depth(struct scsi_device *sdev, int qdepth)
return sdev->queue_depth;
}
/**
* ipr_change_queue_type - Change the device's queue type
* @dsev: scsi device struct
* @tag_type: type of tags to use
*
* Return value:
* actual queue type set
**/
static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
{
struct ipr_ioa_cfg *ioa_cfg = (struct ipr_ioa_cfg *)sdev->host->hostdata;
struct ipr_resource_entry *res;
unsigned long lock_flags = 0;
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
res = (struct ipr_resource_entry *)sdev->hostdata;
if (res && ipr_is_gscsi(res))
tag_type = scsi_change_queue_type(sdev, tag_type);
else
tag_type = 0;
spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
return tag_type;
}
/**
* ipr_show_adapter_handle - Show the adapter's resource handle for this device
* @dev: device struct
@ -6302,7 +6278,6 @@ static struct scsi_host_template driver_template = {
.target_alloc = ipr_target_alloc,
.target_destroy = ipr_target_destroy,
.change_queue_depth = ipr_change_queue_depth,
.change_queue_type = ipr_change_queue_type,
.bios_param = ipr_biosparam,
.can_queue = IPR_MAX_COMMANDS,
.this_id = -1,

1
drivers/scsi/isci/init.c
View File

@ -158,7 +158,6 @@ static struct scsi_host_template isci_sht = {
.scan_finished = isci_host_scan_finished,
.scan_start = isci_host_start,
.change_queue_depth = sas_change_queue_depth,
.change_queue_type = sas_change_queue_type,
.bios_param = sas_bios_param,
.can_queue = ISCI_CAN_QUEUE_VAL,
.cmd_per_lun = 1,

8
drivers/scsi/libsas/sas_scsi_host.c
View File

@ -906,13 +906,6 @@ int sas_change_queue_depth(struct scsi_device *sdev, int depth)
return scsi_change_queue_depth(sdev, depth);
}
int sas_change_queue_type(struct scsi_device *scsi_dev, int type)
{
if (dev_is_sata(sdev_to_domain_dev(scsi_dev)))
return -EINVAL;
return scsi_change_queue_type(scsi_dev, type);
}
int sas_bios_param(struct scsi_device *scsi_dev,
struct block_device *bdev,
sector_t capacity, int *hsc)
@ -1011,7 +1004,6 @@ EXPORT_SYMBOL_GPL(sas_queuecommand);
EXPORT_SYMBOL_GPL(sas_target_alloc);
EXPORT_SYMBOL_GPL(sas_slave_configure);
EXPORT_SYMBOL_GPL(sas_change_queue_depth);
EXPORT_SYMBOL_GPL(sas_change_queue_type);
EXPORT_SYMBOL_GPL(sas_bios_param);
EXPORT_SYMBOL_GPL(sas_task_abort);
EXPORT_SYMBOL_GPL(sas_phy_reset);

2
drivers/scsi/lpfc/lpfc_scsi.c
View File

@ -5879,7 +5879,6 @@ struct scsi_host_template lpfc_template = {
.max_sectors = 0xFFFF,
.vendor_id = LPFC_NL_VENDOR_ID,
.change_queue_depth = scsi_change_queue_depth,
.change_queue_type = scsi_change_queue_type,
.use_blk_tags = 1,
.track_queue_depth = 1,
};
@ -5904,7 +5903,6 @@ struct scsi_host_template lpfc_vport_template = {
.shost_attrs = lpfc_vport_attrs,
.max_sectors = 0xFFFF,
.change_queue_depth = scsi_change_queue_depth,
.change_queue_type = scsi_change_queue_type,
.use_blk_tags = 1,
.track_queue_depth = 1,
};

1
drivers/scsi/mpt2sas/mpt2sas_scsih.c
View File

@ -7592,7 +7592,6 @@ static struct scsi_host_template scsih_driver_template = {
.scan_finished = _scsih_scan_finished,
.scan_start = _scsih_scan_start,
.change_queue_depth = _scsih_change_queue_depth,
.change_queue_type = scsi_change_queue_type,
.eh_abort_handler = _scsih_abort,
.eh_device_reset_handler = _scsih_dev_reset,
.eh_target_reset_handler = _scsih_target_reset,

1
drivers/scsi/mpt3sas/mpt3sas_scsih.c
View File

@ -7229,7 +7229,6 @@ static struct scsi_host_template scsih_driver_template = {
.scan_finished = _scsih_scan_finished,
.scan_start = _scsih_scan_start,
.change_queue_depth = _scsih_change_queue_depth,
.change_queue_type = scsi_change_queue_type,
.eh_abort_handler = _scsih_abort,
.eh_device_reset_handler = _scsih_dev_reset,
.eh_target_reset_handler = _scsih_target_reset,

1
drivers/scsi/mvsas/mv_init.c
View File

@ -54,7 +54,6 @@ static struct scsi_host_template mvs_sht = {
.scan_finished = mvs_scan_finished,
.scan_start = mvs_scan_start,
.change_queue_depth = sas_change_queue_depth,
.change_queue_type = sas_change_queue_type,
.bios_param = sas_bios_param,
.can_queue = 1,
.cmd_per_lun = 1,

1
drivers/scsi/pm8001/pm8001_init.c
View File

@ -76,7 +76,6 @@ static struct scsi_host_template pm8001_sht = {
.scan_finished = pm8001_scan_finished,
.scan_start = pm8001_scan_start,
.change_queue_depth = sas_change_queue_depth,
.change_queue_type = sas_change_queue_type,
.bios_param = sas_bios_param,
.can_queue = 1,
.cmd_per_lun = 1,

1
drivers/scsi/pmcraid.c
View File

@ -4251,7 +4251,6 @@ static struct scsi_host_template pmcraid_host_template = {
.slave_configure = pmcraid_slave_configure,
.slave_destroy = pmcraid_slave_destroy,
.change_queue_depth = pmcraid_change_queue_depth,
.change_queue_type = scsi_change_queue_type,
.can_queue = PMCRAID_MAX_IO_CMD,
.this_id = -1,
.sg_tablesize = PMCRAID_MAX_IOADLS,

1
drivers/scsi/qla2xxx/qla_os.c
View File

@ -258,7 +258,6 @@ struct scsi_host_template qla2xxx_driver_template = {
.scan_finished = qla2xxx_scan_finished,
.scan_start = qla2xxx_scan_start,
.change_queue_depth = scsi_change_queue_depth,
.change_queue_type = scsi_change_queue_type,
.this_id = -1,
.cmd_per_lun = 3,
.use_clustering = ENABLE_CLUSTERING,

16
drivers/scsi/scsi.c
View File

@ -831,22 +831,6 @@ int scsi_track_queue_full(struct scsi_device *sdev, int depth)
}
EXPORT_SYMBOL(scsi_track_queue_full);
/**
* scsi_change_queue_type() - Change a device's queue type
* @sdev: The SCSI device whose queue depth is to change
* @tag_type: Identifier for queue type
*/
int scsi_change_queue_type(struct scsi_device *sdev, int tag_type)
{
if (!sdev->tagged_supported)
return 0;
scsi_set_tag_type(sdev, tag_type);
return tag_type;
}
EXPORT_SYMBOL(scsi_change_queue_type);
/**
* scsi_vpd_inquiry - Request a device provide us with a VPD page
* @sdev: The device to ask

27
drivers/scsi/scsi_debug.c
View File

@ -4987,32 +4987,6 @@ sdebug_change_qdepth(struct scsi_device *sdev, int qdepth)
return sdev->queue_depth;
}
static int
sdebug_change_qtype(struct scsi_device *sdev, int qtype)
{
qtype = scsi_change_queue_type(sdev, qtype);
if (SCSI_DEBUG_OPT_Q_NOISE & scsi_debug_opts) {
const char *cp;
switch (qtype) {
case 0:
cp = "untagged";
break;
case MSG_SIMPLE_TAG:
cp = "simple tags";
break;
case MSG_ORDERED_TAG:
cp = "ordered tags";
break;
default:
cp = "unknown";
break;
}
sdev_printk(KERN_INFO, sdev, "%s: to %s\n", __func__, cp);
}
return qtype;
}
static int
check_inject(struct scsi_cmnd *scp)
{
@ -5212,7 +5186,6 @@ static struct scsi_host_template sdebug_driver_template = {
.ioctl = scsi_debug_ioctl,
.queuecommand = sdebug_queuecommand_lock_or_not,
.change_queue_depth = sdebug_change_qdepth,
.change_queue_type = sdebug_change_qtype,
.eh_abort_handler = scsi_debug_abort,
.eh_device_reset_handler = scsi_debug_device_reset,
.eh_target_reset_handler = scsi_debug_target_reset,

30
drivers/scsi/scsi_sysfs.c
View File

@ -738,30 +738,12 @@ store_queue_type_field(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct scsi_device *sdev = to_scsi_device(dev);
struct scsi_host_template *sht = sdev->host->hostt;
int tag_type = 0, retval;
int prev_tag_type = scsi_get_tag_type(sdev);
if (!sdev->tagged_supported || !sht->change_queue_type)
if (!sdev->tagged_supported)
return -EINVAL;
/*
* We're never issueing order tags these days, but allow the value
* for backwards compatibility.
*/
if (strncmp(buf, "ordered", 7) == 0 ||
strncmp(buf, "simple", 6) == 0)
tag_type = MSG_SIMPLE_TAG;
else if (strncmp(buf, "none", 4) != 0)
return -EINVAL;
if (tag_type == prev_tag_type)
return count;
retval = sht->change_queue_type(sdev, tag_type);
if (retval < 0)
return retval;
sdev_printk(KERN_INFO, sdev,
"ignoring write to deprecated queue_type attribute");
return count;
}
@ -938,10 +920,6 @@ static umode_t scsi_sdev_attr_is_visible(struct kobject *kobj,
!sdev->host->hostt->change_queue_depth)
return 0;
if (attr == &dev_attr_queue_type.attr &&
!sdev->host->hostt->change_queue_type)
return S_IRUGO;
return attr->mode;
}

1
drivers/target/loopback/tcm_loop.c
View File

@ -385,7 +385,6 @@ static struct scsi_host_template tcm_loop_driver_template = {
.name = "TCM_Loopback",
.queuecommand = tcm_loop_queuecommand,
.change_queue_depth = scsi_change_queue_depth,
.change_queue_type = scsi_change_queue_type,
.eh_abort_handler = tcm_loop_abort_task,
.eh_device_reset_handler = tcm_loop_device_reset,
.eh_target_reset_handler = tcm_loop_target_reset,

1
include/scsi/libsas.h
View File

@ -693,7 +693,6 @@ extern int sas_queuecommand(struct Scsi_Host * ,struct scsi_cmnd *);
extern int sas_target_alloc(struct scsi_target *);
extern int sas_slave_configure(struct scsi_device *);
extern int sas_change_queue_depth(struct scsi_device *, int new_depth);
extern int sas_change_queue_type(struct scsi_device *, int qt);
extern int sas_bios_param(struct scsi_device *,
struct block_device *,
sector_t capacity, int *hsc);

13
include/scsi/scsi_host.h
View File

@ -277,19 +277,6 @@ struct scsi_host_template {
*/
int (* change_queue_depth)(struct scsi_device *, int);
/*
* Fill in this function to allow the changing of tag types
* (this also allows the enabling/disabling of tag command
* queueing). An error should only be returned if something
* went wrong in the driver while trying to set the tag type.
* If the driver doesn't support the requested tag type, then
* it should set the closest type it does support without
* returning an error. Returns the actual tag type set.
*
* Status: OPTIONAL
*/
int (* change_queue_type)(struct scsi_device *, int);
/*
* This function determines the BIOS parameters for a given
* harddisk. These tend to be numbers that are made up by

3
include/scsi/scsi_tcq.h
View File

@ -15,9 +15,6 @@
#ifdef CONFIG_BLOCK
int scsi_change_queue_type(struct scsi_device *sdev, int tag_type);
/**
* scsi_get_tag_type - get the type of tag the device supports
* @sdev: the scsi device