In article <20020906013225.60CFCAC@proven.weird.com>
woods@weird.com wrote:

> Please do not do that unless it's done across the board for all host
> adapters on all platforms where drives of a similar vintage might be
> used.  This is most definitely _NOT_ a sparc or esp specific issue.  The
> scsipi quirk table should be able to handle this issue for every port
> and every scsipi-enabled driver uniformly and thus no scsipi-enabled
> driver need have tagged queuing disabled by default.

If the drive which doesn't work on ESP200 also has the same problem
on other adapters it should be listed on the quirk table,
but otherwise it shouldn't.
It is not clear which of drives or esp driver have the problem.

BTW, it seems ESP200 has 40MHz clock but both esp_sbus.c and
esp_obio.c do not handle FASTSCSI stuff. (see dev/tc/asc_tcds.c)
If ESP200 on sparc has the same spec with NCR53CF9x, it might
cause problem on sync transfers and it is MD driver's problem.
(not tagged queuing related, though.)
---
Izumi Tsutsui
tsutsui@ceres.dti.ne.jp