From 37b96a4931dba07cebbf07092e55d1562155412b Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Mon, 5 Feb 2018 10:40:27 -0800 Subject: 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 Signed-off-by: Greg Kroah-Hartman --- Documentation/ABI/stable/sysfs-bus-vmbus | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'Documentation/ABI/stable') 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 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 +Description: Binary file created by uio_hv_generic for ring buffer +Users: Userspace drivers -- cgit v1.2.3