There are some disadvantages to using the ec_... drivers for normal networking. Especially during development it can be a serious hindrance.
An alternative is to unbind and bind the PCI network devices manually: Given is that the kernel (non-ECAT) driver is loaded for a couple of e.g. e1000 devices (you cannot do anything about that; the kernel internally enumerates all matching VIDs and PIDs so udev is of no help here). Load the ec_ driver (ec_e1000 in the example) for your device. Since there's already a driver loaded, it will load but not probe. Next you need to find the PCI device bus address for the device you want to use for ECAT using (e.g. eth2): # ethtool -i eth2 and note the 0000:xx:xx.x PCI bus address ('bus-info') Then, as root, you unbind the kernel driver (e1000) for this device: # echo <PCI bus address> > /sys/bus/pci/driver/<name of driver to unbind>/unbind Finally, bind the EtherCAT capable driver (ec_e1000) for this device using: # echo <PCI bus address> > sys/bus/pci/driver/<name of loaded EtherCAT capable driver>/bind Now two different drivers are loaded for the same type of device. J. 2014-02-27 22:37 GMT+01:00 Gavin Lambert <gav...@compacsort.com>: > Quoth Fredrik Viksten: > > How would I go about setting the system up so I can A) use NIC eth0 for > > normal network traffic and B) use an EtherCAT-optimized kernel driver > > for NIC eth1 when they are both using the same chipset? > > All you should need to do is to explicitly specify the MAC that you want > to use for EtherCAT in the /etc/sysconfig/ethercat file, and let it load > the EtherCAT-optimised driver as normal. > > The modified driver includes checks to see whether it's being used in > EtherCAT mode or not for each individual instance, so the EtherCAT one will > operate in optimised polling mode and the Ethernet one will operate in > regular interrupt mode. > > You may also need to edit additional config files to avoid treating it as > a standard Ethernet port (eg. DHCP, network management, etc), but that will > vary by distribution. I can't really help with that as I've only used > EtherCAT on small systems (no GUI, minimal number of installed packages). > > > _______________________________________________ > etherlab-users mailing list > etherlab-users@etherlab.org > http://lists.etherlab.org/mailman/listinfo/etherlab-users >
_______________________________________________ etherlab-users mailing list etherlab-users@etherlab.org http://lists.etherlab.org/mailman/listinfo/etherlab-users