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-rw-r--r--include/linux/libata.h2
-rw-r--r--include/scsi/libfc.h2
-rw-r--r--include/scsi/libiscsi.h3
-rw-r--r--include/scsi/libsas.h3
-rw-r--r--include/scsi/scsi_host.h8
5 files changed, 13 insertions, 5 deletions
diff --git a/include/linux/libata.h b/include/linux/libata.h
index 8769864..85df383 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -1023,7 +1023,7 @@ extern int ata_std_bios_param(struct scsi_device *sdev,
extern int ata_scsi_slave_config(struct scsi_device *sdev);
extern void ata_scsi_slave_destroy(struct scsi_device *sdev);
extern int ata_scsi_change_queue_depth(struct scsi_device *sdev,
- int queue_depth);
+ int queue_depth, int reason);
extern struct ata_device *ata_dev_pair(struct ata_device *adev);
extern int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev);
diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 1662d73..9617f93 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -919,7 +919,7 @@ int fc_slave_alloc(struct scsi_device *sdev);
/*
* Adjust the queue depth.
*/
-int fc_change_queue_depth(struct scsi_device *sdev, int qdepth);
+int fc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason);
/*
* Change the tag type.
diff --git a/include/scsi/libiscsi.h b/include/scsi/libiscsi.h
index a72edd4..2db2bc2 100644
--- a/include/scsi/libiscsi.h
+++ b/include/scsi/libiscsi.h
@@ -333,7 +333,8 @@ struct iscsi_host {
/*
* scsi host template
*/
-extern int iscsi_change_queue_depth(struct scsi_device *sdev, int depth);
+extern int iscsi_change_queue_depth(struct scsi_device *sdev, int depth,
+ int reason);
extern int iscsi_eh_abort(struct scsi_cmnd *sc);
extern int iscsi_eh_target_reset(struct scsi_cmnd *sc);
extern int iscsi_eh_device_reset(struct scsi_cmnd *sc);
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index e78d3b6..9eaa3f0 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -634,7 +634,8 @@ extern int sas_target_alloc(struct scsi_target *);
extern int sas_slave_alloc(struct scsi_device *);
extern int sas_slave_configure(struct scsi_device *);
extern void sas_slave_destroy(struct scsi_device *);
-extern int sas_change_queue_depth(struct scsi_device *, int new_depth);
+extern int sas_change_queue_depth(struct scsi_device *, int new_depth,
+ int reason);
extern int sas_change_queue_type(struct scsi_device *, int qt);
extern int sas_bios_param(struct scsi_device *,
struct block_device *,
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 6e728b1..603054d 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -43,6 +43,12 @@ struct blk_queue_tags;
#define DISABLE_CLUSTERING 0
#define ENABLE_CLUSTERING 1
+enum {
+ SCSI_QDEPTH_DEFAULT, /* default requested change, e.g. from sysfs */
+ SCSI_QDEPTH_QFULL, /* scsi-ml requested due to queue full */
+ SCSI_QDEPTH_RAMP_UP, /* scsi-ml requested due to threshhold event */
+};
+
struct scsi_host_template {
struct module *module;
const char *name;
@@ -294,7 +300,7 @@ struct scsi_host_template {
*
* Status: OPTIONAL
*/
- int (* change_queue_depth)(struct scsi_device *, int);
+ int (* change_queue_depth)(struct scsi_device *, int, int);
/*
* Fill in this function to allow the changing of tag types
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