summaryrefslogtreecommitdiff
path: root/Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc
diff options
context:
space:
mode:
authorJakub Kicinski <kuba@kernel.org>2020-11-07 04:32:55 +0300
committerJakub Kicinski <kuba@kernel.org>2020-11-07 04:33:38 +0300
commitae0d0bb29b311ee3c71c8796f76d309a3779c8d9 (patch)
treeae8e6f90d4eec5594bf42fe7aa9c3d989fc4317e /Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc
parent9f32c27eb4fc4426eedd511697d921a932f7dba6 (diff)
parentbf3e76289cd28b87f679cd53e26d67fd708d718a (diff)
downloadlinux-ae0d0bb29b311ee3c71c8796f76d309a3779c8d9.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc')
-rw-r--r--Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc4
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc b/Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc
index 7fd2601c2831..a74252e580a5 100644
--- a/Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc
+++ b/Documentation/ABI/testing/sysfs-bus-intel_th-devices-msc
@@ -9,11 +9,13 @@ Date: June 2015
KernelVersion: 4.3
Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Description: (RW) Configure MSC operating mode:
+
- "single", for contiguous buffer mode (high-order alloc);
- "multi", for multiblock mode;
- "ExI", for DCI handler mode;
- "debug", for debug mode;
- any of the currently loaded buffer sinks.
+
If operating mode changes, existing buffer is deallocated,
provided there are no active users and tracing is not enabled,
otherwise the write will fail.
@@ -23,10 +25,12 @@ Date: June 2015
KernelVersion: 4.3
Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Description: (RW) Configure MSC buffer size for "single" or "multi" modes.
+
In single mode, this is a single number of pages, has to be
power of 2. In multiblock mode, this is a comma-separated list
of numbers of pages for each window to be allocated. Number of
windows is not limited.
+
Writing to this file deallocates existing buffer (provided
there are no active users and tracing is not enabled) and then
allocates a new one.