8 .Nd Specialix SI/XIO driver configuration and debugging
12 .Ar command Op Ar param ...
13 .Sh DEPRECATION NOTICE
16 utility will be removed in
21 utility is used to configure and monitor the SI/XIO device driver.
25 utility operates on the specified
27 to indicate which port is to be used.
31 string `-' is used to indicate the global driver settings instead.
35 is included if necessary.
37 The following commands are used for the global settings and should be
38 specified with the '-' device name:
40 .It Cm int_throttle Op Cm value
41 Configure the `aggregate interrupt throttle value'.
42 The maximum number of host adapter interrupts per second is determined by:
44 .Ar "controller CPU clock / (8 * int_throttle)"
46 The default value at boot time is 25000.
47 The host adapter cpu clock is
49 This gives a maximum interrupt rate of about 125 interrupts per
52 Lowering this value will increase the rate in which the host adapter can
53 interrupt the operating system for attention.
55 .It Cm rxint_throttle Op Cm value
56 Configure the receiver interrupt throttle value.
57 The default value of 4 at boot time allows an interrupt rate of
60 Lowering this value will increase the rate in which the host adapter can
61 interrupt the operating system to empty the receiver fifos.
64 Return the number of ports under the control of the device driver.
67 The following commands are used for the individual ports and should be
68 specified with a device name from
72 Show the current incoming modem control signals.
74 Show the current "ccb" structure for the specified port.
76 much use outside of debugging the driver and determining why a port is
80 .Bl -tag -width /dev/si_control -compact
81 .It Pa /dev/si_control
82 global driver control file for use by
85 terminal control ports
87 initial termios state devices, for use by
90 locked termios state devices, for use by
94 Generally self explanatory.....
104 utility is loosely based on a utility called
107 .An Andy Rutter Aq andy@acronym.co.uk
109 Specialix International do not support this device driver in any way.
111 .An Peter Wemm Aq peter@FreeBSD.org