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192.168.1.100 / T108 / c2023d5d03be91dbb983606f0ec5e9e4ea36c8c2 / . / marvell / linux / Documentation / ABI / stable / sysfs-bus-vmbus
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b.liue9582032025-04-17 19:18:16 +0800[diff] [blame]1What: /sys/bus/vmbus/devices/<UUID>/id
2Date: Jul 2009
3KernelVersion: 2.6.31
4Contact: K. Y. Srinivasan <kys@microsoft.com>
5Description: The VMBus child_relid of the device's primary channel
6Users: tools/hv/lsvmbus
7
8What: /sys/bus/vmbus/devices/<UUID>/class_id
9Date: Jul 2009
10KernelVersion: 2.6.31
11Contact: K. Y. Srinivasan <kys@microsoft.com>
12Description: The VMBus interface type GUID of the device
13Users: tools/hv/lsvmbus
14
15What: /sys/bus/vmbus/devices/<UUID>/device_id
16Date: Jul 2009
17KernelVersion: 2.6.31
18Contact: K. Y. Srinivasan <kys@microsoft.com>
19Description: The VMBus interface instance GUID of the device
20Users: tools/hv/lsvmbus
21
22What: /sys/bus/vmbus/devices/<UUID>/channel_vp_mapping
23Date: Jul 2015
24KernelVersion: 4.2.0
25Contact: K. Y. Srinivasan <kys@microsoft.com>
26Description: The mapping of which primary/sub channels are bound to which
27 Virtual Processors.
28 Format: <channel's child_relid:the bound cpu's number>
29Users: tools/hv/lsvmbus
30
31What: /sys/bus/vmbus/devices/<UUID>/device
32Date: Dec. 2015
33KernelVersion: 4.5
34Contact: K. Y. Srinivasan <kys@microsoft.com>
35Description: The 16 bit device ID of the device
36Users: tools/hv/lsvmbus and user level RDMA libraries
37
38What: /sys/bus/vmbus/devices/<UUID>/vendor
39Date: Dec. 2015
40KernelVersion: 4.5
41Contact: K. Y. Srinivasan <kys@microsoft.com>
42Description: The 16 bit vendor ID of the device
43Users: tools/hv/lsvmbus and user level RDMA libraries
44
45What: /sys/bus/vmbus/devices/<UUID>/numa_node
46Date: Jul 2018
47KernelVersion: 4.19
48Contact: Stephen Hemminger <sthemmin@microsoft.com>
49Description: This NUMA node to which the VMBUS device is
50 attached, or -1 if the node is unknown.
51
52What: /sys/bus/vmbus/devices/<UUID>/channels/<N>
53Date: September. 2017
54KernelVersion: 4.14
55Contact: Stephen Hemminger <sthemmin@microsoft.com>
56Description: Directory for per-channel information
57 NN is the VMBUS relid associtated with the channel.
58
59What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/cpu
60Date: September. 2017
61KernelVersion: 4.14
62Contact: Stephen Hemminger <sthemmin@microsoft.com>
63Description: VCPU (sub)channel is affinitized to
64Users: tools/hv/lsvmbus and other debugging tools
65
66What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/cpu
67Date: September. 2017
68KernelVersion: 4.14
69Contact: Stephen Hemminger <sthemmin@microsoft.com>
70Description: VCPU (sub)channel is affinitized to
71Users: tools/hv/lsvmbus and other debugging tools
72
73What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/in_mask
74Date: September. 2017
75KernelVersion: 4.14
76Contact: Stephen Hemminger <sthemmin@microsoft.com>
77Description: Host to guest channel interrupt mask
78Users: Debugging tools
79
80What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/latency
81Date: September. 2017
82KernelVersion: 4.14
83Contact: Stephen Hemminger <sthemmin@microsoft.com>
84Description: Channel signaling latency. This file is available only for
85 performance critical channels (storage, network, etc.) that use
86 the monitor page mechanism.
87Users: Debugging tools
88
89What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/out_mask
90Date: September. 2017
91KernelVersion: 4.14
92Contact: Stephen Hemminger <sthemmin@microsoft.com>
93Description: Guest to host channel interrupt mask
94Users: Debugging tools
95
96What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/pending
97Date: September. 2017
98KernelVersion: 4.14
99Contact: Stephen Hemminger <sthemmin@microsoft.com>
100Description: Channel interrupt pending state. This file is available only for
101 performance critical channels (storage, network, etc.) that use
102 the monitor page mechanism.
103Users: Debugging tools
104
105What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/read_avail
106Date: September. 2017
107KernelVersion: 4.14
108Contact: Stephen Hemminger <sthemmin@microsoft.com>
109Description: Bytes available to read
110Users: Debugging tools
111
112What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/write_avail
113Date: September. 2017
114KernelVersion: 4.14
115Contact: Stephen Hemminger <sthemmin@microsoft.com>
116Description: Bytes available to write
117Users: Debugging tools
118
119What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/events
120Date: September. 2017
121KernelVersion: 4.14
122Contact: Stephen Hemminger <sthemmin@microsoft.com>
123Description: Number of times we have signaled the host
124Users: Debugging tools
125
126What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/interrupts
127Date: September. 2017
128KernelVersion: 4.14
129Contact: Stephen Hemminger <sthemmin@microsoft.com>
130Description: Number of times we have taken an interrupt (incoming)
131Users: Debugging tools
132
133What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/subchannel_id
134Date: January. 2018
135KernelVersion: 4.16
136Contact: Stephen Hemminger <sthemmin@microsoft.com>
137Description: Subchannel ID associated with VMBUS channel
138Users: Debugging tools and userspace drivers
139
140What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/monitor_id
141Date: January. 2018
142KernelVersion: 4.16
143Contact: Stephen Hemminger <sthemmin@microsoft.com>
144Description: Monitor bit associated with channel. This file is available only
145 for performance critical channels (storage, network, etc.) that
146 use the monitor page mechanism.
147Users: Debugging tools and userspace drivers
148
149What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/ring
150Date: January. 2018
151KernelVersion: 4.16
152Contact: Stephen Hemminger <sthemmin@microsoft.com>
153Description: Binary file created by uio_hv_generic for ring buffer
154Users: Userspace drivers
155
156What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/intr_in_full
157Date: February 2019
158KernelVersion: 5.0
159Contact: Michael Kelley <mikelley@microsoft.com>
160Description: Number of guest to host interrupts caused by the inbound ring
161 buffer transitioning from full to not full while a packet is
162 waiting for buffer space to become available
163Users: Debugging tools
164
165What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/intr_out_empty
166Date: February 2019
167KernelVersion: 5.0
168Contact: Michael Kelley <mikelley@microsoft.com>
169Description: Number of guest to host interrupts caused by the outbound ring
170 buffer transitioning from empty to not empty
171Users: Debugging tools
172
173What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/out_full_first
174Date: February 2019
175KernelVersion: 5.0
176Contact: Michael Kelley <mikelley@microsoft.com>
177Description: Number of write operations that were the first to encounter an
178 outbound ring buffer full condition
179Users: Debugging tools
180
181What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/out_full_total
182Date: February 2019
183KernelVersion: 5.0
184Contact: Michael Kelley <mikelley@microsoft.com>
185Description: Total number of write operations that encountered an outbound
186 ring buffer full condition
187Users: Debugging tools