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Christian Brueffer 2015-02-20 10:25:13 +00:00
parent 8bf93a0428
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21
share/man/man4/man4.powerpc/tsec.4
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@ -25,7 +25,7 @@
.\"
.\" $FreeBSD$
.\"
.Dd April 22, 2009
.Dd February 20, 2015
.Dt TSEC 4
.Os
.Sh NAME
@ -91,18 +91,23 @@ The
driver supports interrupts coalescing (IC) so that raising a transmit/receive
frame interrupt is delayed, if possible, until a threshold-defined period of
time has elapsed, or a threshold-defined frame counter has been reached
(whichever occurs first). The following sysctls regulate this behaviour:
(whichever occurs first).
The following sysctls regulate this behaviour:
.Bl -tag -width indent
.It Va dev.tsec.X.int_coal.rx_time
.It Va dev.tsec.X.int_coal.rx_count
.It Va dev.tsec.X.int_coal.tx_time
.It Va dev.tsec.X.int_coal.tx_count
.Pp
Value of 0 for either time or count disables IC on the given path. Time value
Value of 0 for either time or count disables IC on the given path.
Time value
1-65535 corresponds to a real time period and is expressed in units equivalent
to 64 ticks of the TSEC clock. Count 1-255 represents the number of frames
(note that value of 1 is equivalent to IC disabled). User provided values
larger than supported will be trimmed to the maximum supported. More details
to 64 ticks of the TSEC clock.
Count 1-255 represents the number of frames
(note that value of 1 is equivalent to IC disabled).
User provided values
larger than supported will be trimmed to the maximum supported.
More details
are available in the reference manual of the device.
.El
.Sh HARDWARE
@ -144,9 +149,9 @@ device driver first appeared in
The base version of
.Nm
device driver was written by
.An Piotr Kruszynski.
.An Piotr Kruszynski .
It has been extended with polling and interrupt coalescing support by
.An Rafal Jaworowski.
.An Rafal Jaworowski .
It has been further enhanced with multicast, h/w checksum calculation and vlan
support by
.An Piotr Ziecik .