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Start documenting ctl(4) sysctls.

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MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
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trasz 2015-05-22 12:01:29 +00:00
parent 38f5a1dde7
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share/man/man4/ctl.4
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@ -23,7 +23,7 @@
.\" SUCH DAMAGE.
.\"
.\" $FreeBSD$
.Dd April 8, 2015
.Dd May 22, 2015
.Dt CTL 4
.Os
.Sh NAME
@ -84,6 +84,22 @@ All I/O handled in-kernel, no userland context switch overhead
.El
.Pp
It also serves as a kernel component of the native iSCSI target.
.Sh SYSCTL VARIABLES
The following variables are available as both
.Xr sysctl 8
variables and
.Xr loader 8
tunables:
.Bl -tag -width indent
.It Va kern.cam.ctl.iscsi.maxcmdsn_delta
The number of outstanding commands to advertise to the initiator.
Technically, it's the difference between ExpCmdSN and MaxCmdSN fields
in the iSCSI PDU.
.It Va kern.cam.ctl.iscsi.ping_timeout
The number of seconds to wait for the initiator to respond to a NOP-In
PDU.
In the event that there is no response within that time the session gets
forcibly terminated.
.Sh SEE ALSO
.Xr ctladm 8 ,
.Xr ctld 8 ,