Configure the aggregate interrupt throttle value.
The maximum number of host adapter interrupts per second is determined by:
controller CPU clock / (8 * int_throttle)
The default value at boot time is 25000. The host adapter cpu clock is 25MHz. This gives a maximum interrupt rate of about 125 interrupts per second.
Lowering this value will increase the rate in which the host adapter can interrupt the operating system for attention.
Configure the receiver interrupt throttle value.
The default value of 4 at boot time allows an interrupt rate of
Lowering this value will increase the rate in which the host adapter can interrupt the operating system to empty the receiver fifos.
|nport||Return the number of ports under the control of the device driver.|
The following commands are used for the individual ports and should be specified with a device name from /dev:
|Show the current incoming modem control signals.|
|Show the current "ccb" structure for the specified port. This is not of much use outside of debugging the driver and determining why a port is wedged.|
/dev/si_control global driver control file for use by sicontrol /dev/ttyA* terminal control ports /dev/ttyiA* initial termios state devices, for use by stty(1) /dev/ttylA* locked termios state devices, for use by stty(1)
Generally self explanatory.....
stty(1), si(4), termios(4), tty(4), comcontrol(8)
The sicontrol utility is loosely based on a utility called siconfig which was written by
.An Andy Rutter Aq email@example.com
Specialix International do not support this device driver in any way.
.An Peter Wemm Aq peter@FreeBSD.org
Bound to be many... :-)