Add info on driver

README.md

@@ -25,6 +25,18 @@ The default setup is that igb-driver will be used if possible and fallback to ge
 
 The "S10-eth-irq-prio" script will only have effect if generic driver is used. In the default case when igb-drivber is used the script might give some error messages but should not affect anything in a negative way.
 
+### Check which driver is in use:
+
+On ecmc server:
+```
+lsmod | grep ec_
+ec_generic             16384  0
+ec_igb                249856  1
+ec_master             421888  4 ec_igb,ec_generic
+```
+
+In this case igb (ec_igb) driver is in use.
+
 #  Workflow for new server
 
 See [WORKFLOW](WORKFLOW.md)