summaryrefslogtreecommitdiff
path: root/Documentation/ABI/testing
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/ABI/testing')
-rw-r--r--Documentation/ABI/testing/sysfs-block-rssd18
-rw-r--r--Documentation/ABI/testing/sysfs-cfq-target-latency8
2 files changed, 26 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-block-rssd b/Documentation/ABI/testing/sysfs-block-rssd
new file mode 100644
index 000000000000..d535757799fe
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-block-rssd
@@ -0,0 +1,18 @@
+What: /sys/block/rssd*/registers
+Date: March 2012
+KernelVersion: 3.3
+Contact: Asai Thambi S P <asamymuthupa@micron.com>
+Description: This is a read-only file. Dumps below driver information and
+ hardware registers.
+ - S ACTive
+ - Command Issue
+ - Allocated
+ - Completed
+ - PORT IRQ STAT
+ - HOST IRQ STAT
+
+What: /sys/block/rssd*/status
+Date: April 2012
+KernelVersion: 3.4
+Contact: Asai Thambi S P <asamymuthupa@micron.com>
+Description: This is a read-only file. Indicates the status of the device.
diff --git a/Documentation/ABI/testing/sysfs-cfq-target-latency b/Documentation/ABI/testing/sysfs-cfq-target-latency
new file mode 100644
index 000000000000..df0f7828c5e3
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-cfq-target-latency
@@ -0,0 +1,8 @@
+What: /sys/block/<device>/iosched/target_latency
+Date: March 2012
+contact: Tao Ma <boyu.mt@taobao.com>
+Description:
+ The /sys/block/<device>/iosched/target_latency only exists
+ when the user sets cfq to /sys/block/<device>/scheduler.
+ It contains an estimated latency time for the cfq. cfq will
+ use it to calculate the time slice used for every task.