I'm using Ubuntu 16.04 and I would like to know if my system supports the trim command for my SSD. So I typed the following thing : sudo hdparm -I /dev/nvme0n1 | grep TRIMand the result is SG_IO: questionable sense data, results may be incorrectIn another forum, they said that we have to add a line to the kernel boot parameter, but in which path can I find it ? 
hdparm : SG_IO: questionable sense data, results may be incorrect
linux;disk;ssd;hdparm