diff options
| author | Stephen Hemminger <stephen@networkplumber.org> | 2017-09-21 20:58:49 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-10-04 10:47:18 +0200 |
| commit | c2e5df616e1ae6c2a074cb241ebb65a318ebaf7c (patch) | |
| tree | 0cfd997e11d7123eb1fed1bfc95522976b79d6a3 /Documentation/ABI/stable/sysfs-bus-vmbus | |
| parent | 876a1b08d0f9d7df406f702a9aba0e058500efac (diff) | |
vmbus: add per-channel sysfs info
This extends existing vmbus related sysfs structure to provide per-channel
state information. This is useful when diagnosing issues with multiple
queues in networking and storage.
The existing sysfs only displayed information about the primary
channel. The one place it reported multiple channels was the
channel_vp_mapping file which violated the sysfs convention
of one value per file.
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys@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-vmbus | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/Documentation/ABI/stable/sysfs-bus-vmbus b/Documentation/ABI/stable/sysfs-bus-vmbus index 5d0125f7bcaf..0ebd8a1537a0 100644 --- a/Documentation/ABI/stable/sysfs-bus-vmbus +++ b/Documentation/ABI/stable/sysfs-bus-vmbus @@ -41,3 +41,59 @@ KernelVersion: 4.5 Contact: K. Y. Srinivasan <kys@microsoft.com> Description: The 16 bit vendor ID of the device Users: tools/hv/lsvmbus and user level RDMA libraries + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/cpu +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger <sthemmin@microsoft.com> +Description: VCPU (sub)channel is affinitized to +Users: tools/hv/lsvmbus and other debuggig tools + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/cpu +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger <sthemmin@microsoft.com> +Description: VCPU (sub)channel is affinitized to +Users: tools/hv/lsvmbus and other debuggig tools + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/in_mask +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger <sthemmin@microsoft.com> +Description: Inbound channel signaling state +Users: Debuggig tools + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/latency +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger <sthemmin@microsoft.com> +Description: Channel signaling latency +Users: Debuggig tools + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/out_mask +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger <sthemmin@microsoft.com> +Description: Outbound channel signaling state +Users: Debuggig tools + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/pending +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger <sthemmin@microsoft.com> +Description: Channel interrupt pending state +Users: Debuggig tools + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/read_avail +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger <sthemmin@microsoft.com> +Description: Bytes availabble to read +Users: Debuggig tools + +What: /sys/bus/vmbus/devices/vmbus_*/channels/relid/write_avail +Date: September. 2017 +KernelVersion: 4.14 +Contact: Stephen Hemminger <sthemmin@microsoft.com> +Description: Bytes availabble to write +Users: Debuggig tools |