Commit Graph

83 Commits

Author SHA1 Message Date
thorpej
1cd2ca323b Remove a couple of now unneeded assignments. 1995-12-07 21:54:24 +00:00
thorpej
b6c6d46a82 In sdminphys(), add a comment about the semantics of the "length" field
in a 6-byte read/write cdb (namely, length == 0 really means 256), and
that we handle this conservatively by limiting the transfer to 255 blocks.
*sigh* One just never knows how a pre-scsi-1 device is going to behave.
1995-12-07 19:46:00 +00:00
thorpej
c9895db015 In both cd.c and sd.c:
If the read or write request can fit into a 6-byte cdb, then
	use a 6-byte cdb, otherwise use the 10-byte as before.

In sd.c:
	In sdattach(), make a note if the device is "ancient" (i.e.
	inqbuf.version & SID_ANSII == 0).

	Implement sdminphys(): if the device is "ancient", shorten the
	transfer so it will fit into a 6-byte cdb.

These changes have eliminated the rejected read/write requests on my
Sun 3/60 with 2 ESDI disks behind an Emulex MD21.
1995-12-07 19:11:32 +00:00
mycroft
92221a1399 Return EINVAL if something other than a whole number of blocks is requested. 1995-10-10 02:52:56 +00:00
pk
db0107b895 Specify SCSI_DATA_OUT in sddump() (from John Kohl; PR#1482). 1995-09-30 22:57:19 +00:00
thorpej
249cddaaa7 Don't declare Debugger(). It's handled in <sys/systm.h>.
#include <sys/systm.h> where necessary, as suggested by Jonathan Stone.
Fixes PR #1511.
1995-09-26 19:26:48 +00:00
mycroft
8887de9230 opri --> s 1995-08-12 22:58:01 +00:00
mycroft
8a9880e714 Fix oversight in previous. 1995-08-12 21:36:46 +00:00
mycroft
80d7b0695a minphys() functions really should return void. 1995-08-12 20:30:45 +00:00
mycroft
24a5e56396 Use an intermediate variable to shorten label initialization code. 1995-08-05 23:47:52 +00:00
cgd
3301cf82fd update SCSI minphys routines' definitions to match standard minphys()
definition and usage.
1995-07-24 06:55:37 +00:00
mycroft
7263209ce6 Make each disk and tape driver define its own read and write functions.
Deprecate rawread() and rawwrite() completely.  Remove d_strategy from cdevsw to
force the abstraction barrier.
1995-07-04 07:15:28 +00:00
cgd
2a8d6461a8 implement new-style block device dump routine if __BDEVSW_DUMP_OLD_TYPE
not defined, otherwise use an "not implemented" stub.
1995-06-26 05:16:55 +00:00
cgd
011aa68805 looks like some extra ')'s were left in here. 1995-05-03 21:38:57 +00:00
mycroft
1d2f0bce2a Make the byte-shifting code consistent. 1995-05-03 19:38:45 +00:00
mycroft
04e937dcbd Don't boundary check I/O to the `raw' partition. 1995-04-15 05:01:26 +00:00
mycroft
68c8c80929 kernel_pmap --> pmap_kernel() 1995-04-10 16:48:27 +00:00
mycroft
7e2dabf972 Add a missing unlock. 1995-04-01 10:29:41 +00:00
mycroft
1d568eab9a Revamp the locking mechanism slightly. 1995-03-29 23:04:39 +00:00
mycroft
b51403f60d Remove the write protect check altogether, and rely on the drive to do it. 1995-03-25 19:45:18 +00:00
mycroft
06d0a67a07 Check for read-only media in open(), not write(). 1995-03-23 12:11:07 +00:00
mycroft
4712cd33dc Rearrange DIOCWDINFO a little; closer to wd.c. 1995-03-23 11:43:09 +00:00
mycroft
02df08a47e Allow DIOCWDINFO even if label is not `writable'. 1995-03-23 11:33:18 +00:00
mycroft
e203e49ef5 Correct spelling of `fictitious'. Add patterns for optical memory devices.
From Alistair Crooks.
1995-03-07 21:46:06 +00:00
mycroft
321b00bd07 Some drives don't grok START with LoEj=1, either. 1995-01-30 11:47:56 +00:00
mycroft
0ece1143f6 Set the LoadEject bit when issuing a START. 1995-01-30 11:37:17 +00:00
mycroft
9085638020 Some devices really do require the START before the PREVENT. This makes no
sense.
1995-01-30 11:34:25 +00:00
mycroft
1611df6ae0 Update copyrights. 1995-01-26 12:05:49 +00:00
mycroft
b76a328caa Redo the `wait for spin up' code. The Mach 3 method clearly doesn't work.
Also, rearrange the first open sequences a bit; SDEV_OPEN is no longer magic.
1995-01-26 11:56:51 +00:00
mycroft
726fa4e94f Do the PREVENT before the START. 1995-01-23 18:17:22 +00:00
mycroft
a6e7fe0d2a If the disk reports a block size of 0, assume it really meant 512. 1995-01-16 21:40:17 +00:00
mycroft
7650bd97fc Always boundary check I/O. 1995-01-13 10:46:32 +00:00
mycroft
8fd135209c Numerous changes. Many bugs fixed, better autoconfig, a few new features. 1994-12-28 19:42:47 +00:00
mycroft
3e7afdbe8a Remove DIOCSBAD handling. It's not actually handled, so why recognize it? 1994-12-16 04:38:30 +00:00
mycroft
ca65f2ce5d Remove dkbad.h. 1994-12-14 15:17:22 +00:00
mycroft
cc44b4600c There's no point in bothering to unlock what we didn't lock. 1994-11-23 07:54:15 +00:00
mycroft
95edd299b0 Add still more locking. 1994-11-22 03:23:49 +00:00
mycroft
fd32202948 Replace dev_unit with device_softc in scsi_link. Change argument to foostart()
to void*.
1994-11-21 10:39:09 +00:00
mycroft
5bd4115690 Add some missing locking, and some general cleanup. 1994-11-20 22:36:43 +00:00
deraadt
38483bbbf0 Enough Chinese torture already 1994-11-15 23:00:23 +00:00
cgd
6ac2bbfc35 be more careful with types, also pull in headers where necessary. 1994-10-30 21:43:03 +00:00
mycroft
e5d974c51f First cut at making user-level SCSI commands work. This is untested.
Partly from John Brezak.
1994-10-20 20:31:23 +00:00
mycroft
b8ab5f65d1 Back out change to print geometry from label at boot; can't do this reliably. 1994-10-20 16:54:44 +00:00
mycroft
cd66683989 openpart -> openmask 1994-10-20 14:08:07 +00:00
mycroft
bb12b9c8a2 Trivial stylistic changes. 1994-10-20 14:05:08 +00:00
mycroft
b1568d887e Use the block size in the label in most cases. 1994-10-20 13:50:38 +00:00
mycroft
d5b3572f5c Various changes:
* Get rid of unused `partflags'.
* Use dk_openpart, and remove `openparts'.  Also, allow an open on both
the block and characters devices at the same time.
* If there was a label, print the geometry from the label at boot time.
* Turn `wlabel' into a flag, and *don't* set it automatically in
DIOCWLABEL; disklabel(8) does that.
Other minor changes.
1994-10-20 13:33:36 +00:00
cgd
49c34d3337 move arch dependence to archs. clean up a bit. deal with weird MAXPARTITONS. 1994-10-14 18:26:22 +00:00
mycroft
863c736e39 Normalize label handling. 1994-07-26 19:39:19 +00:00
chopps
b10a5d5fac change to support other MAXPARTITIONS vals aside from 8 1994-07-04 20:39:46 +00:00