Page History

Correction - the configurations mentioned are relevant to IOC hosts, not to DAQ hosts. For the latter, there is more investigation needed.

This is focused on software versions - additional topics are also discussed in the referenced thread. 

From mec-detectors thread on 1 September 2023

...

Almost done.. epics-release crashed with eco_tools/R2.35/epics-release.py complaining not all args converted during string formatting....  Bypassed the epics-release issue and booting the IOC from my dev area - IOC crashes with a DMA API version issue - is that a clash with the o/s build for daq-mec-cam01??

Michael: Default driver loaded seems to be v5.15.2.  I'm pretty sure you need v5.16.0. Well, a host usually tries to run /reg/d/iocCommon/hosts/$HOSTNAME/startup.cmd to load drivers... but if that doesn't exist, it runs /reg/d/iocCommon/rhel7-x86_64/common/startup.cmd, which defines versions in kernel-module-dirs.cmd and loads them in kernel-modules.cmd.  So looking at the latter, it runs:

lspci_SLAC_pgp=`lspci -d 1a4a:2020 -n`

...

if [ "$lspci_SLAC_pgp" != "" ]; then

...

	if [ -n "$SLAC_AES_DRIVER" -a -f $SLAC_AES_DRIVER/pgpcard.ko ];

...

 then
		echo Installing SLAC pgpcard driver: $SLAC_AES_DRIVER

...

		rmmod pgpcard
		rmmod pgpcardG3
		insmod $SLAC_AES_DRIVER/pgpcard.ko cfgRxCount=256 cfgTxCount=64
		chmod 666 /dev/pgpcard*
	else
		echo SLAC pgpcard driver not found: $SLAC_AES_DRIVER/pgpcard.ko
	fi
else
	echo SLAC pgpcard device not found.
fi

where from the former:

#

...

Select

...

default

...

SLAC_AES_DRIVER

...

if

...

not

...

overridden

...

if

...

[

...

"$SLAC_AES_DRIVER"

...

==

...

""

...

];

...

then

...

if

...

[

...

"$SLAC_AES_VER"

...

==

...

""

...

];

...

then

...

#SLAC_AES_VER=latest

...

SLAC_AES_VER=v5.15.2

...

fi

...

SLAC_AES_DRIVER=$PACKAGE_SITE_TOP/slaclab/aes-stream-drivers/$SLAC_AES_VER/install/`uname

...

-r`/

...

fi

...

export

...

SLAC_AES_DRIVER

...

So... you don't necessarily want to

...

change everyone... but you can create a host-specific startup file, and define SLAC_AES_VERSION SLAC_AES_VER to v5.16.0, and then

...

s
ource the standard rhel7 file.gpcardG3

...

Then either reboot, or manually install the new driver.  To manually start... stop all of the PGP IOCs, and then as root run:

# rmmod pgpcard
# rmmod pgpcardG3
# insmod /reg/g/pcds/package/slaclab/aes-stream-drivers/v5.16.0/install/`uname -r`/pgpcard.ko cfgRxCount=256 cfgTxCount=64

...

# chmod 666 /dev/pgpcard*

(I've just filled out all of the paths from the kernel*

...

cmd files there. )

Implementation for daq-mec-cam01

peregrin@mec-daq:/reg/d/iocCommon/hosts/daq-mec-cam01$ pwd
/reg/d/iocCommon/hosts/daq-mec-cam01
peregrin@mec-daq:/reg/d/iocCommon/hosts/daq-mec-cam01$ cat startup.cmd 
#!/bin/bash

export SLAC_AES_VER=v5.16.0

/reg/d/iocCommon/rhel7-x86_64/common/startup.cmd
peregrin@mec-daq:/reg/d/iocCommon/hosts/daq-mec-cam01$ Investigation 

This didn't work for me - the IOC still crashes on a DMA API version mismatch.

Investigation

Does any other host use this scheme?

Evidently not!

peregrin@mec-daq:/reg/d/iocCommon/hosts$ pwd
/reg/d/iocCommon/hosts
peregrin@mec-daq:/reg/d/iocCommon/hosts$ grep AES */startup.cmd
daq-mec-cam01/startup.cmd:export SLAC_AES_VER=v5.16.0
peregrin@mec-daq:/reg/d/iocCommon/hosts$ 


Does anyone else run an Epix IOC against common/epix/1.5.0?

Yes!

peregrin@mec-daq:/reg/g/pcds/epics/ioc$ pwd
/reg/g/pcds/epics/ioc
peregrin@mec-daq:/reg/g/pcds/epics/ioc$ grep -l "R1.5.0" */epix/*/*cfg
cxi/epix/R1.5.0/ioc-cxi-d51-epix.cfg
det/epix/R1.5.0/ioc-det-epix10ka2m.cfg
det/epix/R1.5.0/ioc-det-epix2.cfg
mfx/epix/R1.5.0/ioc-mfx-epix.cfg
mfx/epix/R1.5.1/ioc-mfx-epix10ka2m.cfg
mfx/epix/R1.5.1/ioc-mfx-epix.cfg
xcs/epix/R1.5.0/ioc-xcs-epix10ka2m.cfg
xcs/epix/R1.5.0/ioc-xcs-epix1.cfg
xcs/epix/R1.5.0/ioc-xcs-epix2.cfg
xcs/epix/R1.5.0/ioc-xcs-epix3.cfg
xcs/epix/R1.5.0/ioc-xcs-epix4.cfg
xcs/epix/R1.5.1/ioc-xcs-epix10ka2m.cfg
xcs/epix/R1.5.1/ioc-xcs-epix1.cfg
xcs/epix/R1.5.1/ioc-xcs-epix2.cfg
xcs/epix/R1.5.1/ioc-xcs-epix3.cfg
xcs/epix/R1.5.1/ioc-xcs-epix4.cfg
xpp/epix/R1.5.0/ioc-xpp-alc-epix.cfg
xpp/epix/R1.5.0/ioc-xpp-detmbl-epix1.cfg
xpp/epix/R1.5.0/ioc-xpp-detmbl-epix2.cfg
xpp/epix/R1.5.0/ioc-xpp-epix10ka2m.cfg
xpp/epix/R1.5.0/ioc-xpp-rob-epix.cfg
xpp/epix/R1.5.0/ioc-xpp-usr-epix-1.cfg
xpp/epix/R1.5.0/ioc-xpp-usr-epix-2.cfg
peregrin@mec-daq:/reg/g/pcds/epics/ioc$ 

And what DAQ versions are these hutches running?

cxi - 10.7.0-p9.3.4

det - 10.7.1-p9.3.4

mfx - 10.7.0-p9.3.4

xcs - 10.7.1-p9.3.4

xpp - 10.7.1-p9.3.4

Great, so which hosts are these?

However, none of these hosts have directories in /reg/d/iocCommon/hosts/. (so now what?)