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authorDave Jiang <dave.jiang@intel.com>2020-04-15 19:13:12 +0300
committerVinod Koul <vkoul@kernel.org>2020-04-15 19:24:00 +0300
commitc2ce6bbcfc9f142b426717bc5aa3f9ba20485a65 (patch)
tree7138c236184dbb950360c7ca88e64d14da31a39e /Documentation/ABI/stable
parenta4e688535a0829980d5ef1516c0713777a874c62 (diff)
downloadlinux-c2ce6bbcfc9f142b426717bc5aa3f9ba20485a65.tar.xz
dmaengine: idxd: export hw version through sysfs
Some user apps would like to know the hardware version in order to determine the variation of the hardware. Export the hardware version number to userspace via sysfs. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Link: https://lore.kernel.org/r/158696714008.39484.13401950732606906479.stgit@djiang5-desk3.ch.intel.com Signed-off-by: Vinod Koul <vkoul@kernel.org>
Diffstat (limited to 'Documentation/ABI/stable')
-rw-r--r--Documentation/ABI/stable/sysfs-driver-dma-idxd6
1 files changed, 6 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-driver-dma-idxd b/Documentation/ABI/stable/sysfs-driver-dma-idxd
index f4be46cc6cb6..b5bebf642db6 100644
--- a/Documentation/ABI/stable/sysfs-driver-dma-idxd
+++ b/Documentation/ABI/stable/sysfs-driver-dma-idxd
@@ -1,3 +1,9 @@
+What: sys/bus/dsa/devices/dsa<m>/version
+Date: Apr 15, 2020
+KernelVersion: 5.8.0
+Contact: dmaengine@vger.kernel.org
+Description: The hardware version number.
+
What: sys/bus/dsa/devices/dsa<m>/cdev_major
Date: Oct 25, 2019
KernelVersion: 5.6.0