On Tue, 19 Mar 2019 at 09:25, Daniel Drake <drake@xxxxxxxxxxxx> wrote: > > On Mon, Mar 18, 2019 at 9:44 PM Ulf Hansson <ulf.hansson@xxxxxxxxxx> wrote: > > > > On ampe_stor : 12.1mb/sec > > > > On new alcor driver: 364kb/sec > > > > > > Uff... 364kb/sec is wary low. Feels like due some errors or missing capabilities the HI speed is not > > > enabled. > > > > Well, nothing have really changed in regards to this. > > > > Perhaps try a plain v5.0 and compare with v5.1 rc1 to see if this is regression? > > Not a regression in this sense. I'm trying Oleksij's driver for the > first time (now that I have hardware back in hands), and comparing it > to the vendor driver. > https://github.com/endlessm/linux/tree/archive/v4.20-endless/drivers/scsi/ampe_stor > (The vendor driver is totally different and not upstreamable in any way!) I see! Perhaps you can dump the ios settings in debugfs, that may give us some pointers. "cat debug/mmc1/ios". Kind regards Uffe