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scsi: provide a generic change_queue_type method 

Most drivers use exactly the same implementation, so provide it as a
library function.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
This commit is contained in:
Christoph Hellwig 2014-10-02 14:39:55 +02:00
parent 1d5203284d
commit a62182f338
19 changed files with 42 additions and 228 deletions
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24
drivers/infiniband/ulp/srp/ib_srp.c
View File

@ -2258,28 +2258,6 @@ static int srp_cm_handler(struct ib_cm_id *cm_id, struct ib_cm_event *event)
return 0;
}
/**
* srp_change_queue_type - changing device queue tag type
* @sdev: scsi device struct
* @tag_type: requested tag type
*
* Returns queue tag type.
*/
static int
srp_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;
}
/**
* srp_change_queue_depth - setting device queue depth
* @sdev: scsi device struct
@ -2600,7 +2578,7 @@ static struct scsi_host_template srp_template = {
.info = srp_target_info,
.queuecommand = srp_queuecommand,
.change_queue_depth = srp_change_queue_depth,
.change_queue_type = srp_change_queue_type,
.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,

2
drivers/scsi/bnx2fc/bnx2fc_fcoe.c
View File

@ -2784,7 +2784,7 @@ static struct scsi_host_template bnx2fc_shost_template = {
.eh_host_reset_handler = fc_eh_host_reset,
.slave_alloc = fc_slave_alloc,
.change_queue_depth = fc_change_queue_depth,
.change_queue_type = fc_change_queue_type,
.change_queue_type = scsi_change_queue_type,
.this_id = -1,
.cmd_per_lun = 3,
.use_clustering = ENABLE_CLUSTERING,

1
drivers/scsi/esas2r/esas2r.h
View File

@ -976,7 +976,6 @@ int esas2r_slave_alloc(struct scsi_device *dev);
int esas2r_slave_configure(struct scsi_device *dev);
void esas2r_slave_destroy(struct scsi_device *dev);
int esas2r_change_queue_depth(struct scsi_device *dev, int depth, int reason);
int esas2r_change_queue_type(struct scsi_device *dev, int type);
long esas2r_proc_ioctl(struct file *fp, unsigned int cmd, unsigned long arg);
/* SCSI error handler (eh) functions */

20
drivers/scsi/esas2r/esas2r_main.c
View File

@ -258,7 +258,7 @@ static struct scsi_host_template driver_template = {
.slave_alloc = esas2r_slave_alloc,
.slave_destroy = esas2r_slave_destroy,
.change_queue_depth = esas2r_change_queue_depth,
.change_queue_type = esas2r_change_queue_type,
.change_queue_type = scsi_change_queue_type,
.max_sectors = 0xFFFF,
};
@ -1268,24 +1268,6 @@ int esas2r_change_queue_depth(struct scsi_device *dev, int depth, int reason)
return dev->queue_depth;
}
int esas2r_change_queue_type(struct scsi_device *dev, int type)
{
esas2r_log(ESAS2R_LOG_INFO, "change_queue_type %p, %d", dev, type);
if (dev->tagged_supported) {
scsi_set_tag_type(dev, type);
if (type)
scsi_activate_tcq(dev, dev->queue_depth);
else
scsi_deactivate_tcq(dev, dev->queue_depth);
} else {
type = 0;
}
return type;
}
int esas2r_slave_alloc(struct scsi_device *dev)
{
return 0;

2
drivers/scsi/fcoe/fcoe.c
View File

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

2
drivers/scsi/fnic/fnic_main.c
View File

@ -113,7 +113,7 @@ static struct scsi_host_template fnic_host_template = {
.eh_host_reset_handler = fnic_host_reset,
.slave_alloc = fnic_slave_alloc,
.change_queue_depth = fc_change_queue_depth,
.change_queue_type = fc_change_queue_type,
.change_queue_type = scsi_change_queue_type,
.this_id = -1,
.cmd_per_lun = 3,
.can_queue = FNIC_DFLT_IO_REQ,

25
drivers/scsi/ibmvscsi/ibmvfc.c
View File

@ -2929,29 +2929,6 @@ static int ibmvfc_change_queue_depth(struct scsi_device *sdev, int qdepth,
return sdev->queue_depth;
}
/**
* ibmvfc_change_queue_type - Change the device's queue type
* @sdev: scsi device struct
* @tag_type: type of tags to use
*
* Return value:
* actual queue type set
**/
static int ibmvfc_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;
}
static ssize_t ibmvfc_show_host_partition_name(struct device *dev,
struct device_attribute *attr, char *buf)
{
@ -3133,7 +3110,7 @@ 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 = ibmvfc_change_queue_type,
.change_queue_type = scsi_change_queue_type,
.cmd_per_lun = 16,
.can_queue = IBMVFC_MAX_REQUESTS_DEFAULT,
.this_id = -1,

20
drivers/scsi/ipr.c
View File

@ -4364,24 +4364,10 @@ static int ipr_change_queue_type(struct scsi_device *sdev, int tag_type)
spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
res = (struct ipr_resource_entry *)sdev->hostdata;
if (res) {
if (ipr_is_gscsi(res) && sdev->tagged_supported) {
/*
* We don't bother quiescing the device here since the
* adapter firmware does it for us.
*/
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;
} else
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;
}

20
drivers/scsi/libfc/fc_fcp.c
View File

@ -2195,26 +2195,6 @@ int fc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
}
EXPORT_SYMBOL(fc_change_queue_depth);
/**
* fc_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 fc_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;
}
EXPORT_SYMBOL(fc_change_queue_type);
/**
* fc_fcp_destory() - Tear down the FCP layer for a given local port
* @lport: The local port that no longer needs the FCP layer

24
drivers/scsi/lpfc/lpfc_scsi.c
View File

@ -344,26 +344,6 @@ lpfc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
return sdev->queue_depth;
}
/**
* lpfc_change_queue_type() - Change a device's scsi tag queuing type
* @sdev: Pointer the scsi device whose queue depth is to change
* @tag_type: Identifier for queue tag type
*/
static int
lpfc_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;
}
/**
* lpfc_rampdown_queue_depth - Post RAMP_DOWN_QUEUE event to worker thread
* @phba: The Hba for which this call is being executed.
@ -6019,7 +5999,7 @@ struct scsi_host_template lpfc_template = {
.max_sectors = 0xFFFF,
.vendor_id = LPFC_NL_VENDOR_ID,
.change_queue_depth = lpfc_change_queue_depth,
.change_queue_type = lpfc_change_queue_type,
.change_queue_type = scsi_change_queue_type,
};
struct scsi_host_template lpfc_vport_template = {
@ -6042,5 +6022,5 @@ struct scsi_host_template lpfc_vport_template = {
.shost_attrs = lpfc_vport_attrs,
.max_sectors = 0xFFFF,
.change_queue_depth = lpfc_change_queue_depth,
.change_queue_type = lpfc_change_queue_type,
.change_queue_type = scsi_change_queue_type,
};

24
drivers/scsi/mpt2sas/mpt2sas_scsih.c
View File

@ -1254,28 +1254,6 @@ _scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
return sdev->queue_depth;
}
/**
* _scsih_change_queue_type - changing device queue tag type
* @sdev: scsi device struct
* @tag_type: requested tag type
*
* Returns queue tag type.
*/
static int
_scsih_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;
}
/**
* _scsih_target_alloc - target add routine
* @starget: scsi target struct
@ -7653,7 +7631,7 @@ 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 = _scsih_change_queue_type,
.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,

25
drivers/scsi/mpt3sas/mpt3sas_scsih.c
View File

@ -1122,29 +1122,6 @@ _scsih_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
return sdev->queue_depth;
}
/**
* _scsih_change_queue_type - changing device queue tag type
* @sdev: scsi device struct
* @tag_type: requested tag type
*
* Returns queue tag type.
*/
static int
_scsih_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;
}
/**
* _scsih_target_alloc - target add routine
* @starget: scsi target struct
@ -7284,7 +7261,7 @@ 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 = _scsih_change_queue_type,
.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,

14
drivers/scsi/pmcraid.c
View File

@ -321,16 +321,10 @@ static int pmcraid_change_queue_type(struct scsi_device *scsi_dev, int tag)
struct pmcraid_resource_entry *res;
res = (struct pmcraid_resource_entry *)scsi_dev->hostdata;
if ((res) && scsi_dev->tagged_supported &&
(RES_IS_GSCSI(res->cfg_entry) || RES_IS_VSET(res->cfg_entry))) {
scsi_set_tag_type(scsi_dev, tag);
if (tag)
scsi_activate_tcq(scsi_dev, scsi_dev->queue_depth);
else
scsi_deactivate_tcq(scsi_dev, scsi_dev->queue_depth);
} else
if (res && scsi_dev->tagged_supported &&
(RES_IS_GSCSI(res->cfg_entry) || RES_IS_VSET(res->cfg_entry)))
tag = scsi_change_queue_type(scsi_dev, tag);
else
tag = 0;
return tag;

18
drivers/scsi/qla2xxx/qla_os.c
View File

@ -237,7 +237,6 @@ static int qla2xxx_eh_bus_reset(struct scsi_cmnd *);
static int qla2xxx_eh_host_reset(struct scsi_cmnd *);
static int qla2x00_change_queue_depth(struct scsi_device *, int, int);
static int qla2x00_change_queue_type(struct scsi_device *, int);
static void qla2x00_clear_drv_active(struct qla_hw_data *);
static void qla2x00_free_device(scsi_qla_host_t *);
static void qla83xx_disable_laser(scsi_qla_host_t *vha);
@ -260,7 +259,7 @@ struct scsi_host_template qla2xxx_driver_template = {
.scan_finished = qla2xxx_scan_finished,
.scan_start = qla2xxx_scan_start,
.change_queue_depth = qla2x00_change_queue_depth,
.change_queue_type = qla2x00_change_queue_type,
.change_queue_type = scsi_change_queue_type,
.this_id = -1,
.cmd_per_lun = 3,
.use_clustering = ENABLE_CLUSTERING,
@ -1473,21 +1472,6 @@ qla2x00_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
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

20
drivers/scsi/scsi.c
View File

@ -866,6 +866,26 @@ 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) {
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;
}
EXPORT_SYMBOL(scsi_change_queue_type);
/**
* scsi_vpd_inquiry - Request a device provide us with a VPD page
* @sdev: The device to ask

9
drivers/scsi/scsi_debug.c
View File

@ -4532,14 +4532,7 @@ sdebug_change_qdepth(struct scsi_device *sdev, int qdepth, int reason)
static int
sdebug_change_qtype(struct scsi_device *sdev, int qtype)
{
if (sdev->tagged_supported) {
scsi_set_tag_type(sdev, qtype);
if (qtype)
scsi_activate_tcq(sdev, sdev->queue_depth);
else
scsi_deactivate_tcq(sdev, sdev->queue_depth);
} else
qtype = 0;
qtype = scsi_change_queue_type(sdev, qtype);
if (SCSI_DEBUG_OPT_Q_NOISE & scsi_debug_opts) {
const char *cp;

17
drivers/target/loopback/tcm_loop.c
View File

@ -135,21 +135,6 @@ static int tcm_loop_change_queue_depth(
return sdev->queue_depth;
}
static int tcm_loop_change_queue_type(struct scsi_device *sdev, int tag)
{
if (sdev->tagged_supported) {
scsi_set_tag_type(sdev, tag);
if (tag)
scsi_activate_tcq(sdev, sdev->queue_depth);
else
scsi_deactivate_tcq(sdev, sdev->queue_depth);
} else
tag = 0;
return tag;
}
/*
* Locate the SAM Task Attr from struct scsi_cmnd *
*/
@ -451,7 +436,7 @@ static struct scsi_host_template tcm_loop_driver_template = {
.name = "TCM_Loopback",
.queuecommand = tcm_loop_queuecommand,
.change_queue_depth = tcm_loop_change_queue_depth,
.change_queue_type = tcm_loop_change_queue_type,
.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/libfc.h
View File

@ -1106,7 +1106,6 @@ int fc_eh_device_reset(struct scsi_cmnd *);
int fc_eh_host_reset(struct scsi_cmnd *);
int fc_slave_alloc(struct scsi_device *);
int fc_change_queue_depth(struct scsi_device *, int qdepth, int reason);
int fc_change_queue_type(struct scsi_device *, int tag_type);
/*
* ELS/CT interface

2
include/scsi/scsi_tcq.h
View File

@ -16,6 +16,8 @@
#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