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net: sysfs: add documentation entries for /sys/class/<iface>/queues

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

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Florian Fainelli 2014-05-23 16:35:41 -07:00 committed by David S. Miller
parent 79499bca6c
commit 1a02ef76ac
1 changed files with 79 additions and 0 deletions
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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.