On Mon, Mar 26, 2018 at 2:27 AM, Jason Yan <yanaijie@xxxxxxxxxx> wrote: > Now ata devices attached with sas controller do not have transport > class, so that we can not see any information of these ata devices in > /sys/class/ata_port(or ata_link or ata_device). > > Add transport class for the ata devices attached with sas controller. > The /sys/class directory will show the infomation of the ata devices > as follows: > > localhost:/sys/class # ls ata* > ata_device: > dev1.0 dev2.0 > > ata_link: > link1 link2 > > ata_port: > ata1 ata2 > > No functional change of the device scanning and io path. The ata > transport class was deleted when destroying the sas devices. Have you tested this with suspend / resume power management? I believe that is what stopped me from going down this path, when I first evaluated it.
