From: Florian Fainelli <f.fainelli@gmail.com>
To: netdev@vger.kernel.org
Cc: davem@davemloft.net, therbert@google.com, edumazet@gmail.com,
Florian Fainelli <f.fainelli@gmail.com>
Subject: [PATCH net-next 2/3] net: sysfs: add documentation entries for /sys/class/<iface>/queues
Date: Fri, 23 May 2014 16:35:41 -0700 [thread overview]
Message-ID: <1400888142-5963-3-git-send-email-f.fainelli@gmail.com> (raw)
In-Reply-To: <1400888142-5963-1-git-send-email-f.fainelli@gmail.com>
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>
---
Documentation/ABI/testing/sysfs-class-net-queues | 79 ++++++++++++++++++++++++
1 file changed, 79 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-class-net-queues
diff --git a/Documentation/ABI/testing/sysfs-class-net-queues b/Documentation/ABI/testing/sysfs-class-net-queues
new file mode 100644
index 000000000000..5e9aeb91d355
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-net-queues
@@ -0,0 +1,79 @@
+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.
--
1.9.1
next prev parent reply other threads:[~2014-05-23 23:35 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-23 23:35 [PATCH net-next 0/3] net: sysfs: documentation updates Florian Fainelli
2014-05-23 23:35 ` [PATCH net-next 1/3] net: sysfs: add missing phys_port_id documentation Florian Fainelli
2014-05-23 23:35 ` Florian Fainelli [this message]
2014-05-23 23:35 ` [PATCH net-next 3/3] net: sysfs: document /sys/class/net/statistics/* Florian Fainelli
2014-05-26 5:03 ` [PATCH net-next 0/3] net: sysfs: documentation updates David Miller
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