summaryrefslogtreecommitdiffstats
path: root/Documentation/ABI/testing/sysfs-driver-xen-blkfront
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/ABI/testing/sysfs-driver-xen-blkfront')
-rw-r--r--Documentation/ABI/testing/sysfs-driver-xen-blkfront19
1 files changed, 19 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-driver-xen-blkfront b/Documentation/ABI/testing/sysfs-driver-xen-blkfront
new file mode 100644
index 000000000..4d36c5a10
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-xen-blkfront
@@ -0,0 +1,19 @@
+What: /sys/module/xen_blkfront/parameters/max_indirect_segments
+Date: June 2013
+KernelVersion: 3.11
+Contact: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+ Maximum number of segments that the frontend will negotiate
+ with the backend for indirect descriptors. The default value
+ is 32 - higher value means more potential throughput but more
+ memory usage. The backend picks the minimum of the frontend
+ and its default backend value.
+
+What: /sys/module/xen_blkfront/parameters/feature_persistent
+Date: September 2020
+KernelVersion: 5.10
+Contact: Maximilian Heyne <mheyne@amazon.de>
+Description:
+ Whether to enable the persistent grants feature or not. Note
+ that this option only takes effect on newly connected frontends.
+ The default is Y (enable).