Hi Viswa,
A Tcl API for sending and receiving MADs is available under
https://openib.org/svn/gen2/utils/src/linux-user/ibis
(IBIS == IB Inband Services)
If you follow on the autogen.sh && configure && make && make install
you should get /usr/local/bin/ibis executable.
Then the following script would do the trick.
NOTE: when you force a port down you need to remember that if that
port is used for returning the response to the Set command - no response
will be possible and the following script will say:
"You probably turned off the port you came in through as you got no response!"
Hope this will meet your requirements.
Eitan
#!/bin/sh
# This file invokes the IBIS \
export TCLLIBPATH="/usr/local/lib"; \
export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH; \
exec /usr/local/bin/ibis "$0" "$@"
proc usage {} {
global argv0
puts "Usage: $argv0 <lid> <port> <UP|DOWN>"
exit 1
}
# parse command line
if {[llength $argv] != 3} {
usage
}
set lid [lindex $argv 0]
set port [lindex $argv 1]
set state [lindex $argv 2]
if {[lsearch {UP DOWN} $state] < 0} {
usage
}
# init the IBIS
ibis_init
# attach to teh default port (as selected by UMAD) IBIS will abort if fail
ibis_set_port [lindex [lindex [ibis_get_local_ports_info] 0] 0]
# Query the PortInfo to get all its parameters and verify it is there...
set r [smPortInfoMad getByLid $lid $port]
if {$r != 0} {
puts "Could not query the target port. Got code:$r"
exit 1
}
# Do we set the physical port state polling or disabled?
if {$state == "UP"} {
smPortInfoMad configure -state_info2 0x22 -state_info1 0x0
} else {
smPortInfoMad configure -state_info2 0x32 -state_info1 0x0
}
# send and see we got
set r [smPortInfoMad setByLid $lid $port]
if {$r == 6} {
puts "You probably turned off the port you came in through as you got no
response!"
exit 0
}
if {$r != 0} {
puts "set failed with code $r"
exit 1
}
exit 0
Hal Rosenstock wrote:
On Fri, 2005-09-23 at 14:23, Viswanath Krishnamurthy wrote:
I was looking if mthca driver has any API/ioctl to disable/enable the
link..
I don't know, Roland ? I think this would be done via SM MADs.
-- Hal
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