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82 Commits

Author SHA1 Message Date
christos 0bc63f486d scsi prototypes 1996-02-14 21:46:52 +00:00
thorpej 919f6728ab Accept DIOCEJECT as a synonym for CDIOCEJECT. Implement DIOCLOCK 
separately from CDIOCALLOW and CDIOCPREVENT, even though they perform
basically the same function (with a different interface XXX).
 1996-01-30 18:28:02 +00:00
thorpej 8068d9eeb2 Handle cases like the following: 
- controller calls scsi_done() with error XS_TIMEOUT
	- scsi_done() calls sddone()
	- sddone() calls disk_unbusy()
	- scsi_done() calls controller to retry command (missing the
	  call to disk_busy())
	- controller calls scsi_done()
	- scsi_done() calls sddone()
	- sddone() calls disk_busy(), which panics because of the imbalance.
Bug noticed by Leo Weppleman, who also suggested this fix; pass an additional
boolean argument ("complete") to the device's "done" routine, with a
value of `0' passed from the previous call to "done", and add an additional
call to "done" when the xfer resources are freed.
 1996-01-12 22:43:26 +00:00
thorpej 5b39541e48 New generic disk framework. Highlights: 
- New metrics handling.  Metrics are now kept in the new
	  `struct disk'.  Busy time is now stored as a timeval, and
	  transfer count in bytes.

	- Storage for disklabels is now dynamically allocated, so that
	  the size of the disk structure is not machine-dependent.

	- Several new functions for attaching and detaching disks, and
	  handling metrics calculation.

Old-style instrumentation is still supported in drivers that did it before.
However, old-style instrumentation is being deprecated, and will go away
once the userland utilities are updated for the new framework.

For usage and architectural details, see the forthcoming disk(9) manual
page.
 1996-01-07 22:01:38 +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 fbecb8d22b Remove the gratuitous code to check for a disc at boot time. 1995-11-11 20:07:57 +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
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 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 d093e5d8b8 make dump stubs consistent 1995-06-26 05:15:33 +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 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 990077ba88 Don't bother with DIOCWLABEL. 1995-03-23 12:13:37 +00:00
mycroft 06d0a67a07 Check for read-only media in open(), not write(). 1995-03-23 12:11:07 +00:00
mycroft d21add8356 Revert cdsize() to do nothing. 1995-03-23 11:51:22 +00:00
mycroft 4712cd33dc Rearrange DIOCWDINFO a little; closer to wd.c. 1995-03-23 11:43:09 +00:00
mycroft 562ca7760b Fix typo. 1995-03-23 11:37:51 +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 7639253b70 Finish last change. 1995-01-30 11:50:23 +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 e71e917e9d Remove unused macros. 1995-01-16 21:31:34 +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
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 7d391c250d Fix minor omission. 1994-10-20 14:10:18 +00:00
mycroft cd66683989 openpart -> openmask 1994-10-20 14:08:07 +00:00
mycroft caaeda044b Similar changes to sd.c. 1994-10-20 14:03:38 +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 da79c879cd On probe or open, retry the READ CAPACITY once if the drive reports NOT READY. 1994-08-11 23:51:26 +00:00
mycroft 558c00c001 Fix spelling of `STEREO'. 1994-08-05 22:56:19 +00:00