188 lines
6.6 KiB
Plaintext
188 lines
6.6 KiB
Plaintext
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What: /sys/bus/vmbus/devices/<UUID>/id
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Date: Jul 2009
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KernelVersion: 2.6.31
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Contact: K. Y. Srinivasan <kys@microsoft.com>
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Description: The VMBus child_relid of the device's primary channel
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Users: tools/hv/lsvmbus
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What: /sys/bus/vmbus/devices/<UUID>/class_id
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Date: Jul 2009
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KernelVersion: 2.6.31
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Contact: K. Y. Srinivasan <kys@microsoft.com>
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Description: The VMBus interface type GUID of the device
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Users: tools/hv/lsvmbus
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What: /sys/bus/vmbus/devices/<UUID>/device_id
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Date: Jul 2009
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KernelVersion: 2.6.31
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Contact: K. Y. Srinivasan <kys@microsoft.com>
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Description: The VMBus interface instance GUID of the device
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Users: tools/hv/lsvmbus
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What: /sys/bus/vmbus/devices/<UUID>/channel_vp_mapping
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Date: Jul 2015
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KernelVersion: 4.2.0
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Contact: K. Y. Srinivasan <kys@microsoft.com>
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Description: The mapping of which primary/sub channels are bound to which
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Virtual Processors.
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Format: <channel's child_relid:the bound cpu's number>
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Users: tools/hv/lsvmbus
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What: /sys/bus/vmbus/devices/<UUID>/device
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Date: Dec. 2015
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KernelVersion: 4.5
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Contact: K. Y. Srinivasan <kys@microsoft.com>
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Description: The 16 bit device ID of the device
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Users: tools/hv/lsvmbus and user level RDMA libraries
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What: /sys/bus/vmbus/devices/<UUID>/vendor
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Date: Dec. 2015
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KernelVersion: 4.5
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Contact: K. Y. Srinivasan <kys@microsoft.com>
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Description: The 16 bit vendor ID of the device
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Users: tools/hv/lsvmbus and user level RDMA libraries
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What: /sys/bus/vmbus/devices/<UUID>/numa_node
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Date: Jul 2018
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KernelVersion: 4.19
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Contact: Stephen Hemminger <sthemmin@microsoft.com>
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Description: This NUMA node to which the VMBUS device is
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attached, or -1 if the node is unknown.
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>
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Date: September. 2017
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KernelVersion: 4.14
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Contact: Stephen Hemminger <sthemmin@microsoft.com>
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Description: Directory for per-channel information
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NN is the VMBUS relid associtated with the channel.
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/cpu
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Date: September. 2017
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KernelVersion: 4.14
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Contact: Stephen Hemminger <sthemmin@microsoft.com>
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Description: VCPU (sub)channel is affinitized to
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Users: tools/hv/lsvmbus and other debugging tools
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/cpu
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Date: September. 2017
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KernelVersion: 4.14
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Contact: Stephen Hemminger <sthemmin@microsoft.com>
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Description: VCPU (sub)channel is affinitized to
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Users: tools/hv/lsvmbus and other debugging tools
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/in_mask
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Date: September. 2017
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KernelVersion: 4.14
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Contact: Stephen Hemminger <sthemmin@microsoft.com>
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Description: Host to guest channel interrupt mask
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Users: Debugging tools
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/latency
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Date: September. 2017
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KernelVersion: 4.14
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Contact: Stephen Hemminger <sthemmin@microsoft.com>
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Description: Channel signaling latency. This file is available only for
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performance critical channels (storage, network, etc.) that use
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the monitor page mechanism.
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Users: Debugging tools
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/out_mask
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Date: September. 2017
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KernelVersion: 4.14
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Contact: Stephen Hemminger <sthemmin@microsoft.com>
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Description: Guest to host channel interrupt mask
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Users: Debugging tools
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/pending
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Date: September. 2017
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KernelVersion: 4.14
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Contact: Stephen Hemminger <sthemmin@microsoft.com>
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Description: Channel interrupt pending state. This file is available only for
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performance critical channels (storage, network, etc.) that use
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the monitor page mechanism.
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Users: Debugging tools
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/read_avail
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Date: September. 2017
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KernelVersion: 4.14
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Contact: Stephen Hemminger <sthemmin@microsoft.com>
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Description: Bytes available to read
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Users: Debugging tools
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/write_avail
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Date: September. 2017
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KernelVersion: 4.14
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Contact: Stephen Hemminger <sthemmin@microsoft.com>
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Description: Bytes available to write
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Users: Debugging tools
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/events
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Date: September. 2017
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KernelVersion: 4.14
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Contact: Stephen Hemminger <sthemmin@microsoft.com>
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Description: Number of times we have signaled the host
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Users: Debugging tools
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/interrupts
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Date: September. 2017
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KernelVersion: 4.14
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Contact: Stephen Hemminger <sthemmin@microsoft.com>
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Description: Number of times we have taken an interrupt (incoming)
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Users: Debugging tools
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/subchannel_id
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Date: January. 2018
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KernelVersion: 4.16
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Contact: Stephen Hemminger <sthemmin@microsoft.com>
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Description: Subchannel ID associated with VMBUS channel
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Users: Debugging tools and userspace drivers
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/monitor_id
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Date: January. 2018
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KernelVersion: 4.16
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Contact: Stephen Hemminger <sthemmin@microsoft.com>
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Description: Monitor bit associated with channel. This file is available only
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for performance critical channels (storage, network, etc.) that
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use the monitor page mechanism.
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Users: Debugging tools and userspace drivers
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/ring
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Date: January. 2018
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KernelVersion: 4.16
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Contact: Stephen Hemminger <sthemmin@microsoft.com>
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Description: Binary file created by uio_hv_generic for ring buffer
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Users: Userspace drivers
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/intr_in_full
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Date: February 2019
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KernelVersion: 5.0
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Contact: Michael Kelley <mikelley@microsoft.com>
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Description: Number of guest to host interrupts caused by the inbound ring
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buffer transitioning from full to not full while a packet is
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waiting for buffer space to become available
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Users: Debugging tools
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/intr_out_empty
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Date: February 2019
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KernelVersion: 5.0
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Contact: Michael Kelley <mikelley@microsoft.com>
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Description: Number of guest to host interrupts caused by the outbound ring
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buffer transitioning from empty to not empty
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Users: Debugging tools
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/out_full_first
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Date: February 2019
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KernelVersion: 5.0
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Contact: Michael Kelley <mikelley@microsoft.com>
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Description: Number of write operations that were the first to encounter an
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outbound ring buffer full condition
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Users: Debugging tools
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What: /sys/bus/vmbus/devices/<UUID>/channels/<N>/out_full_total
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Date: February 2019
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KernelVersion: 5.0
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Contact: Michael Kelley <mikelley@microsoft.com>
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Description: Total number of write operations that encountered an outbound
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ring buffer full condition
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Users: Debugging tools
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