Trouble with EHCI controller and USB Flash Disk.

[Julian Elischer]

On Wed, 21 Apr 2004, Nate Lawson wrote:

> On Wed, 21 Apr 2004, Vyacheslav I. Ivanchenko wrote:
> > Hello Nate Lawson!
> >
> > I use -CURRENT from April, 20 2004.
> > # ident kernel | grep "scsi_da.c"
> > $FreeBSD: src/sys/cam/scsi/scsi_da.c,v 1.167 2004/04/19 13:38:10 mux Exp $
> >
> > I have problems with mine USB2.0 Mobile Disk III and EHCI controller.
> > (http://www.twinmos.com/flash/flash_p_usb20_mobile3.htm)
> >
> > When I try to use EHCI controller, my system finds out
> > the device /dev/da0, but does not find out the
> > device /dev/da0s1.
> >
> > With UHCI controller no problem.
> 
> Since it works with UHCI, it's likely an EHCI problem.  Unfortunately, I
> don't know much about EHCI so I'm moving this to -current.

The ehci driver has quite a few problems.
It workd in some cases but not in others.
I have not yet isolated what the defining factor is.

> 
> EHCI messages:
> kernel: umass0: TTI-TTI U20 Mobile Disk, rev 2.00/2.00, addr 2
> kernel: umass0:0:0:-1: Attached to scbus0
> kernel: (probe0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
> kernel: (probe0:umass-sim0:0:0:0): Retrying Command
> kernel: (probe0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
> kernel: (probe0:umass-sim0:0:0:0): Retrying Command
> kernel: (probe0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
> kernel: (probe0:umass-sim0:0:0:0): Retrying Command
> kernel: (probe0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
> kernel: (probe0:umass-sim0:0:0:0): Retrying Command
> kernel: (probe0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
> kernel: (probe0:umass-sim0:0:0:0): error 5
> kernel: (probe0:umass-sim0:0:0:0): Retries Exausted
> kernel: pass0 at umass-sim0 bus 0 target 0 lun 0
> kernel: pass0: <USB 2.0 Mobile Disk 2.00> Removable Direct Access SCSI-2 device
> kernel: pass0: 1.000MB/s transfers
> kernel: GEOM: new disk da0
> kernel: da0 at umass-sim0 bus 0 target 0 lun 0
> kernel: da0: <USB 2.0 Mobile Disk 2.00> Removable Direct Access SCSI-2 device
> kernel: da0: 1.000MB/s transfers
> kernel: da0: 250MB (512000 512 byte sectors: 64H 32S/T 250C)
> kernel: (da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x10, scsi
> status == 0x0
> kernel: (da0:umass-sim0:0:0:0): Request completed with CAM_REQ_CMP_ERR
> kernel: (da0:umass-sim0:0:0:0): Retrying Command
> kernel: (da0:umass-sim0:0:0:0): Synchronize cache failed, status == 0x10, scsi
> status == 0x0
> kernel: umass0: at uhub4 port 8 (addr 2) disconnected
> kernel: (pass0:umass-sim0:0:0:0): lost device
> kernel: (pass0:umass-sim0:0:0:0): removing device entry
> kernel: (da0:umass-sim0:0:0:0): lost device
> kernel: (da0:umass-sim0:0:0:0): removing device entry
> kernel: umass0: detached

I've seen this behaviour once..
the drive isn't able to be read, which means that the fdisk table (MBR)
can not be read, so geom doesn't make any subdevices.

I do  not have an answer at this time..
however it is possible that an MFC of the umass driver (which I am
partly though) might help.

> 
> UHCI messages (working):
> kernel: umass0: TTI-TTI U20 Mobile Disk, rev 2.00/2.00, addr 2
> kernel: umass0:0:0:-1: Attached to scbus0
> kernel: pass0 at umass-sim0 bus 0 target 0 lun 0
> kernel: pass0: <USB 2.0 Mobile Disk 2.00> Removable Direct Access SCSI-2 device
> kernel: pass0: Serial Number ^_
> kernel: pass0: 1.000MB/s transfers
> kernel: GEOM: new disk da0
> kernel: (da0:umass-sim0:0:0:0): Retrying Command
> kernel: da0 at umass-sim0 bus 0 target 0 lun 0
> kernel: da0: <USB 2.0 Mobile Disk 2.00> Removable Direct Access SCSI-2 device
> kernel: da0: Serial Number ^_
> kernel: da0: 1.000MB/s transfers
> kernel: da0: 250MB (512000 512 byte sectors: 64H 32S/T 250C)
> kernel: [0] f:80 typ:11 s(CHS):0/1/1 e(CHS):998/15/32 s:32 l:511456
> kernel: [1] f:00 typ:0 s(CHS):0/0/0 e(CHS):0/0/0 s:0 l:0
> kernel: [2] f:00 typ:0 s(CHS):0/0/0 e(CHS):0/0/0 s:0 l:0
> kernel: [3] f:00 typ:0 s(CHS):0/0/0 e(CHS):0/0/0 s:0 l:0
> kernel: GEOM: Configure da0s1, start 16384 length 261865472 end 261881855
> kernel: umass0: at uhub3 port 2 (addr 2) disconnected
> kernel: (da0:umass-sim0:0:0:0): lost device
> kernel: (da0:umass-sim0:0:0:0): removing device entry
> kernel: (pass0:umass-sim0:0:0:0): lost device
> kernel: (pass0:umass-sim0:0:0:0): removing device entry
> kernel: umass0: detached
> 
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