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Commit 1a02ef76 authored by Florian Fainelli's avatar Florian Fainelli Committed by David S. Miller
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net: sysfs: add documentation entries for /sys/class/<iface>/queues 



Add sysfs documentation for the various attributes of a network
interface exposed in /sys/class/<iface>/queues/{rx,tx}-<queue>/

Signed-off-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 79499bca

Documentation/ABI/testing/sysfs-class-net-queues

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+79 −0
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What:		/sys/class/<iface>/queues/rx-<queue>/rps_cpus

Date:		March 2010

KernelVersion:	2.6.35

Contact:	netdev@vger.kernel.org

Description:

		Mask of the CPU(s) currently enabled to participate into the

		Receive Packet Steering packet processing flow for this

		network device queue. Possible values depend on the number

		of available CPU(s) in the system.



What:		/sys/class/<iface>/queues/rx-<queue>/rps_flow_cnt

Date:		April 2010

KernelVersion:	2.6.35

Contact:	netdev@vger.kernel.org

Description:

		Number of Receive Packet Steering flows being currently

		processed by this particular network device receive queue.



What:		/sys/class/<iface>/queues/tx-<queue>/tx_timeout

Date:		November 2011

KernelVersion:	3.3

Contact:	netdev@vger.kernel.org

Description:

		Indicates the number of transmit timeout events seen by this

		network interface transmit queue.



What:		/sys/class/<iface>/queues/tx-<queue>/xps_cpus

Date:		November 2010

KernelVersion:	2.6.38

Contact:	netdev@vger.kernel.org

Description:

		Mask of the CPU(s) currently enabled to participate into the

		Transmit Packet Steering packet processing flow for this

		network device transmit queue. Possible vaules depend on the

		number of available CPU(s) in the system.



What:		/sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/hold_time

Date:		November 2011

KernelVersion:	3.3

Contact:	netdev@vger.kernel.org

Description:

		Indicates the hold time in milliseconds to measure the slack

		of this particular network device transmit queue.

		Default value is 1000.



What:		/sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/inflight

Date:		November 2011

KernelVersion:	3.3

Contact:	netdev@vger.kernel.org

Description:

		Indicates the number of bytes (objects) in flight on this

		network device transmit queue.



What:		/sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/limit

Date:		November 2011

KernelVersion:	3.3

Contact:	netdev@vger.kernel.org

Description:

		Indicates the current limit of bytes allowed to be queued

		on this network device transmit queue. This value is clamped

		to be within the bounds defined by limit_max and limit_min.



What:		/sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/limit_max

Date:		November 2011

KernelVersion:	3.3

Contact:	netdev@vger.kernel.org

Description:

		Indicates the absolute maximum limit of bytes allowed to be

		queued on this network device transmit queue. See

		include/linux/dynamic_queue_limits.h for the default value.



What:		/sys/class/<iface>/queues/tx-<queue>/byte_queue_limits/limit_min

Date:		November 2011

KernelVersion:	3.3

Contact:	netdev@vger.kernel.org

Description:

		Indicates the absolute minimum limit of bytes allowed to be

		queued on this network device transmit queue. Default value is

		0.