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10 Commits

Author SHA1 Message Date
Justin T. Gibbs
07b1c6b3c9 Remove hard coded assumption that SCSI busses have 7 targets.
This change forces the controller drivers to allocate a scsibus_data struct
via a call to scsi_alloc_bus(), fill in the adapter_link field, and optionally
modify any other fields of the struct.  Scsi_alloc_bus() initializes all fields
to the default, so the changes in most drivers are very minimal.  For drivers
that support Wide controllers, the maxtarg field will have to be updated to
allow probing of all targets (for an example, look at the aic7xxx driver).

Scsi_attachdevs() now takes a scsibus_data* as its argument instead of an
sc_link*.  This allows us to expand the role of the scsibus_data struct for
other bus level configuration setings (max number of transactions, current
transaction opennings, etc for better tagged queuing support).

Reviewed by: Rodney Grimes <rgrimes>, Peter Dufault <dufault>, Julian Elischer <julian>
1995-08-23 23:03:34 +00:00
Jordan K. Hubbard
2c3c9fc440 The following patch for v1.8 (2.0.5R) of seagate.c allows it to work with
Future Domain TMC-885 controllers. These beasts were just different enough in
a number of perverse ways to be recognised but not work with the seagate
stuff. I also whacked in blind transfers for DATAIN and DATAOUT phases - this
more than doubles my throughput. If you're dubious about that, comment out the
definition of SEA_BLINDTRANSFER. Anyway if you're running an ST01 or TMC-950
controller, please give this a go, I'd like to see if anything's broken for
those beasts.

Submitted by:	Stephen Hocking <sysseh@devetir.qld.gov.au>
1995-07-13 15:01:38 +00:00
Rodney W. Grimes
9b2e535452 Remove trailing whitespace. 1995-05-30 08:16:23 +00:00
Garrett Wollman
6c0081e92b Add a class field to devconf and mst drivers.
For those where it was easy, drivers were also fixed to call
dev_attach() during probe rather than attach (in keeping with the
new design articulated in a mail message five months ago).  For
a few that were really easy, correct state tracking was added as well.
The `fd' driver was fixed to correctly fill in the description.
The CPU identify code was fixed to attach a `cpu' device.  The code
was also massively reordered to fill in cpu_model with somethingremotely
resembling what identifycpu() prints out.  A few bytes saved by using
%b to format the features list rather than lots of ifs.
1995-04-12 20:48:13 +00:00
Bruce Evans
3aa12267a5 Add and move declarations to fix all of the warnings from `gcc -Wimplicit'
(except in netccitt, netiso and netns) that I didn't notice when I fixed
"all" such warnings before.
1995-03-28 07:58:53 +00:00
Jordan K. Hubbard
ed4a82f717 Latest update from Serge Vakulenko <vak@cronyx.ru>
Submitted by:	vak
1995-01-10 11:41:28 +00:00
Jordan K. Hubbard
10bfdf2bae From: "Serge V.Vakulenko" <vak@gw.cronyx.msk.su>
This is new version of Seagate ST01/02, Future Domain TMC-885, TMC-950
SCSI driver for FreeBSD.  I started from the 2.0R version and mostly
rewrote it.  New features are:

1) New probe algorithm.  Old driver read the BIOS region of the adapter
   memory and find the copyright string.  The problem was in the BIOS itself:
   it conflicted with IDE disks.  The solution was to unplug it and
   make the probe algorithm to work without it.
2) Proper timeout handling in numerous places where the driver
   polls waiting for some event.
3) Assembler flagments added in critical places, mostly for data transfer
   to of from the target.  It was possible to make it faster,
   but at the price of decreasing reliability.
4) Target-dependent delays when waiting for REQ deassert event.
   Some devices seem to be slower (CD-ROMS, some tape drives),
   and some seem to be too fast (disks).  The driver tests the REQ
   deassert timeout for each target and then uses it for polling.
5) Device flags added for SCSI parity control and sense request
   priority control.
6) Generic cleanup, after which the driver became much more readable
   (at least by me:).
7) Target data parity error logging is limited to avoid log file overflow.
8) Manual page added.

Submitted by:	serge
1994-12-31 05:31:48 +00:00
Søren Schmidt
f809acea7c Added device registration stuff. 1994-10-27 08:03:15 +00:00
Poul-Henning Kamp
b51250ff13 Made an annoying printf #ifdef SEADEBUG 1994-10-27 05:23:09 +00:00
Søren Schmidt
3fca77cb1c Seagate st01/02 driver.
Obtained from:	FreeBSD-1.1.5.1
1994-10-24 22:14:34 +00:00