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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-03-01 16:43:50 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-03-01 16:43:50 +0100
commit99f63620b484b421c480d5048d8ab88a0bacb7ac (patch)
tree99ec8410197d25b3051f8e13bd3db9bf91f9c0d1 /Documentation/ABI
parentb3bf147bd6117f2cc493c6371c6f0be659b0dd96 (diff)
parent396ae57ef1ef978d1d21cdb7586ba184a3f22453 (diff)
downloadlinux-99f63620b484b421c480d5048d8ab88a0bacb7ac.tar.bz2
Merge tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux into char-misc-next
Sasha writes: 1. Exopsing counters for state changes of channel ring buffers; this is useful to investigate performance issues. By Kimberly Brown. 2. Switching to the new generic UUID API, by Andy Shevchenko. * tag 'hyperv-next-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux: Drivers: hv: vmbus: Expose counters for interrupts and full conditions vmbus: Switch to use new generic UUID API
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/stable/sysfs-bus-vmbus33
1 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-bus-vmbus b/Documentation/ABI/stable/sysfs-bus-vmbus
index 3fed8fdb873d..826689dcc2e6 100644
--- a/Documentation/ABI/stable/sysfs-bus-vmbus
+++ b/Documentation/ABI/stable/sysfs-bus-vmbus
@@ -146,3 +146,36 @@ KernelVersion: 4.16
Contact: Stephen Hemminger <sthemmin@microsoft.com>
Description: Binary file created by uio_hv_generic for ring buffer
Users: Userspace drivers
+
+What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/intr_in_full
+Date: February 2019
+KernelVersion: 5.0
+Contact: Michael Kelley <mikelley@microsoft.com>
+Description: Number of guest to host interrupts caused by the inbound ring
+ buffer transitioning from full to not full while a packet is
+ waiting for buffer space to become available
+Users: Debugging tools
+
+What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/intr_out_empty
+Date: February 2019
+KernelVersion: 5.0
+Contact: Michael Kelley <mikelley@microsoft.com>
+Description: Number of guest to host interrupts caused by the outbound ring
+ buffer transitioning from empty to not empty
+Users: Debugging tools
+
+What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/out_full_first
+Date: February 2019
+KernelVersion: 5.0
+Contact: Michael Kelley <mikelley@microsoft.com>
+Description: Number of write operations that were the first to encounter an
+ outbound ring buffer full condition
+Users: Debugging tools
+
+What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/out_full_total
+Date: February 2019
+KernelVersion: 5.0
+Contact: Michael Kelley <mikelley@microsoft.com>
+Description: Total number of write operations that encountered an outbound
+ ring buffer full condition
+Users: Debugging tools