mrfioc2 Linux driver

[Steve Kinder - UKRI STFC <steve.kinder@stfc.ac.uk>]

Hello all


I am trying to get an MRF PCIe-EVR-300DC configured and working on Linux using mrfioc2. I think I have an IOC built. I think I have some understanding of the parameters to mrmEvrSetupPCI(EVR-01, 1, 0, 0, 0). I could well be wrong on those but that isn't the source of my immediate problem. Executing the previous call gives:


Can't open /sys/module/mrf/parameters/interfaceversion in order to read kernel module interface version. Is kernel module loaded?


I found some documentation that indicates an MRF kernel driver is also required:


$ make -C /location/of/mrmShared/linux \

KERNELDIR=/lib/modules/`uname -r`/build modules_install

$ sudo depmod -a

$ sudo modprobe mrf


I seem to need to execute the first line as root or I get permissions problems. However then I get:


# make -C /home/controls/work/R3.14.12.5/support/mrfioc2/3-0-0/mrmShared/linux KERNELDIR=/lib/modules/`uname -r`/build modules_install
make: Entering directory `/home/controls/work/R3.14.12.5/support/mrfioc2/3-0-0/mrmShared/linux'
make -C /lib/modules/3.10.0-514.6.1.el7.x86_64/build M=/home/controls/work/R3.14.12.5/support/mrfioc2/3-0-0/mrmShared/linux modules_install
make[1]: Entering directory `/usr/src/kernels/3.10.0-514.6.1.el7.x86_64'
Makefile:641: Cannot use CONFIG_CC_STACKPROTECTOR_STRONG: -fstack-protector-strong not supported by compiler
  DEPMOD  3.10.0-514.6.1.el7.x86_64
make[1]: Leaving directory `/usr/src/kernels/3.10.0-514.6.1.el7.x86_64'
make: Leaving directory `/home/controls/work/R3.14.12.5/support/mrfioc2/3-0-0/mrmShared/linux'


The documentation dates back to 2015, Rev 7, so may be out of date?


Any advice/help would be much appreciated. Further documentation?


My kernel is 3.10.0-514.6.1.el7.x86_64, mrfioc2 3-0-0


Thanks


Steve


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