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authorJohn Fastabend <john.r.fastabend@intel.com>2015-03-18 14:57:33 +0200
committerDavid S. Miller <davem@davemloft.net>2015-03-18 14:55:18 -0400
commit822b3b2ebfff8e9b3d006086c527738a7ca00cd0 (patch)
treed3e6b25328bf4716982026b04dee8c0d2718a5d5 /Documentation/ABI
parentb65885d29d41c7245bbd98769e781f77e8d9ed5b (diff)
net: Add max rate tx queue attribute
This adds a tx_maxrate attribute to the tx queue sysfs entry allowing for max-rate limiting. Along with DCB-ETS and BQL this provides another knob to tune queue performance. The limit units are Mbps. By default it is disabled. To disable the rate limitation after it has been set for a queue, it should be set to zero. Signed-off-by: John Fastabend <john.r.fastabend@intel.com> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-class-net-queues8
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-class-net-queues b/Documentation/ABI/testing/sysfs-class-net-queues
index 5e9aeb91d355..0c0df91b1516 100644
--- a/Documentation/ABI/testing/sysfs-class-net-queues
+++ b/Documentation/ABI/testing/sysfs-class-net-queues
@@ -24,6 +24,14 @@ Description:
Indicates the number of transmit timeout events seen by this
network interface transmit queue.
+What: /sys/class/<iface>/queues/tx-<queue>/tx_maxrate
+Date: March 2015
+KernelVersion: 4.1
+Contact: netdev@vger.kernel.org
+Description:
+ A Mbps max-rate set for the queue, a value of zero means disabled,
+ default is disabled.
+
What: /sys/class/<iface>/queues/tx-<queue>/xps_cpus
Date: November 2010
KernelVersion: 2.6.38