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authorStephen Hemminger <stephen@networkplumber.org>2018-02-05 21:40:27 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-03-06 20:57:17 +0300
commit37b96a4931dba07cebbf07092e55d1562155412b (patch)
tree865b31a14739197399ccc79d62d9e5ad555dbca6 /Documentation/ABI/stable/sysfs-bus-vmbus
parentcf21be919c5960da2eb7bc91f8056adb27b56712 (diff)
downloadlinux-37b96a4931dba07cebbf07092e55d1562155412b.tar.xz
uio_hv_generic: support sub-channels
Use sysfs to allow supporting sub-channels. The userspace application makes request to host to create sub-channels and the UIO kernel driver populates the sysfs per-channel directory with a binary attribute file that can be used to read/write ring. Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/ABI/stable/sysfs-bus-vmbus')
-rw-r--r--Documentation/ABI/stable/sysfs-bus-vmbus7
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-bus-vmbus b/Documentation/ABI/stable/sysfs-bus-vmbus
index e46be65d0e1d..0c9d9dcd2151 100644
--- a/Documentation/ABI/stable/sysfs-bus-vmbus
+++ b/Documentation/ABI/stable/sysfs-bus-vmbus
@@ -132,3 +132,10 @@ KernelVersion: 4.16
Contact: Stephen Hemminger <sthemmin@microsoft.com>
Description: Monitor bit associated with channel
Users: Debugging tools and userspace drivers
+
+What: /sys/bus/vmbus/devices/vmbus_*/channels/NN/ring
+Date: January. 2018
+KernelVersion: 4.16
+Contact: Stephen Hemminger <sthemmin@microsoft.com>
+Description: Binary file created by uio_hv_generic for ring buffer
+Users: Userspace drivers