diff options
| author | Greg Kroah-Hartman | 2019-03-01 16:43:50 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2019-03-01 16:43:50 +0100 |
| commit | 99f63620b484b421c480d5048d8ab88a0bacb7ac (patch) | |
| tree | 99ec8410197d25b3051f8e13bd3db9bf91f9c0d1 /Documentation | |
| parent | b3bf147bd6117f2cc493c6371c6f0be659b0dd96 (diff) | |
| parent | 396ae57ef1ef978d1d21cdb7586ba184a3f22453 (diff) | |
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')
| -rw-r--r-- | Documentation/ABI/stable/sysfs-bus-vmbus | 33 |
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 |