Commit Graph

593 Commits

Author SHA1 Message Date
Søren Schmidt
43a181118f Proberly back down DMA modes on the Acer Aladdin. 2000-12-19 10:37:03 +00:00
Poul-Henning Kamp
959b7375ed Staticize some malloc M_ instances. 2000-12-08 20:09:00 +00:00
Søren Schmidt
374940a184 Fix a braino .. 2000-11-18 12:14:35 +00:00
Søren Schmidt
18434d5214 Put the probe verboseness behind bootverbose 2000-11-16 10:52:00 +00:00
Søren Schmidt
0cdc179319 Only offset raid disks > 1 on the HPT, this should solve the
boot problems..
However this demands that dangerously dedicated disks use an
offset of at least 10 from the start to not overwrite the
raid config sector on the HPT...
2000-11-12 20:45:14 +00:00
Søren Schmidt
07296bbba1 Better handling of immediate commands, mainly to solve timeouts
in the atapi-tape code...
2000-11-12 20:41:24 +00:00
Søren Schmidt
a9c1b0e23a Hopefully fix the probing problems that caused lost slaves etc.. 2000-11-12 20:40:05 +00:00
Søren Schmidt
1716750c65 Rearrange the timeouts in the reset code a bit, some ATAPI devices
are picky about this.
2000-11-08 21:25:43 +00:00
Søren Schmidt
30a777baa8 Hopefully solve the lost slave problem. 2000-11-08 19:31:39 +00:00
Søren Schmidt
4ce977b412 Fix breakage on some ATA chips that dont have busmastering set.
Tidy up the probe a bit..
2000-11-03 17:09:34 +00:00
Søren Schmidt
6cc33af8f1 Update the config gathering code for both Promise & HPT 2000-11-01 17:35:44 +00:00
Søren Schmidt
afaa0eb776 Try a bit harder to test for ATA/ATAPI HW to probe, this is to avoid
some of the false comrades some devices fakes...
2000-10-30 20:45:24 +00:00
Søren Schmidt
92be7ac569 Update the Promise RAID code, there are differences between BIOS
version unfortunately...
2000-10-30 17:11:40 +00:00
Søren Schmidt
0dbc12d8ca Fix the PCCARD ATA breakage..
This is due to a bug that has been in there since Warneer did the
PCCARD stuff, the altioaddr is not offset 8 its offset 14 from
the base address.
Also only probe the master device, no known PCCARD ATA thingies
has a slave AFAIK..
2000-10-30 09:36:40 +00:00
Poul-Henning Kamp
cf9fa8e725 Move suser() and suser_xxx() prototypes and a related #define from
<sys/proc.h> to <sys/systm.h>.

Correctly document the #includes needed in the manpage.

Add one now needed #include of <sys/systm.h>.
Remove the consequent 48 unused #includes of <sys/proc.h>.
2000-10-29 16:06:56 +00:00
Søren Schmidt
7f7e251f51 Fix the problem with DMA mode not working on Aladdin chips.
Amasing in how many ways Acer has screwed up that chip.
2000-10-24 13:50:22 +00:00
Søren Schmidt
0f4eed7d8b Clean up the raid code a bit, also allow disks on HPT controllers to
be swapped around and still be put in the correct order in a raid.
2000-10-22 12:17:57 +00:00
Søren Schmidt
7dda7872cb Fix warning in the ISA only case. 2000-10-22 12:17:38 +00:00
Søren Schmidt
8f281eed6c Get the prober error code instead of relying on scp->error to contain
the lastest greatest.
2000-10-22 12:16:51 +00:00
Søren Schmidt
d29f653d3a Up the reset pulse to 100ms in ata_reset, some drives especially
DVD drives need this to reset proberly.

Remove some verboseness..
2000-10-22 12:16:00 +00:00
John Baldwin
0cfbef3288 Quiet a silly warning.
Pointy-hat to:	ps
2000-10-19 18:52:20 +00:00
Søren Schmidt
550abec2a0 Minor changes to the ATA RAID support code, remove some verbosity
and put some under bootverbose..
2000-10-18 18:49:42 +00:00
Paul Saab
c794ceb56a Implement write combining for crashdumps. This is useful when
write caching is disabled on both SCSI and IDE disks where large
memory dumps could take up to an hour to complete.

Taking an i386 scsi based system with 512MB of ram and timing (in
seconds) how long it took to complete a dump, the following results
were obtained:

Before:				After:
	WCE           TIME		WCE           TIME
	------------------		------------------
	1	141.820972		1	 15.600111
	0	797.265072		0	 65.480465

Obtained from:	Yahoo!
Reviewed by:	peter
2000-10-17 10:05:49 +00:00
Poul-Henning Kamp
db7e3af111 Remove unneeded #include <machine/clock.h> 2000-10-15 14:19:01 +00:00
Paul Saab
16a011f973 Do not allocate a callout for all crashdumps, not just when you panic. 2000-10-13 21:49:19 +00:00
Søren Schmidt
e9cf6115e4 Add support for ATA "pseudo" RAID controllers as the Promise Fasttrak
and HighPoint HPT370 controllers.

Use by defining the RAID in the BIOS and the "ar driver will pick it up
automagically...
2000-10-13 13:04:45 +00:00
Søren Schmidt
8d8f318a08 Fix ISA only systems. 2000-10-13 12:09:23 +00:00
Søren Schmidt
2c483f9eb5 Get rid of the ivars entirely. 2000-10-13 11:21:27 +00:00
Søren Schmidt
b656ee68ec Only allow UDMA2 mode on SiS rev > 0xc1
Minor cosmetics
2000-10-13 10:54:47 +00:00
John Baldwin
1931cf940a - Heavyweight interrupt threads on the alpha for device I/O interrupts.
- Make softinterrupts (SWI's) almost completely MI, and divorce them
  completely from the x86 hardware interrupt code.
  - The ihandlers array is now gone.  Instead, there is a MI shandlers array
    that just contains SWI handlers.
  - Most of the former machine/ipl.h files have moved to a new sys/ipl.h.
- Stub out all the spl*() functions on all architectures.

Submitted by:	dfr
2000-10-05 23:09:57 +00:00
Søren Schmidt
11b944d47a Cleanup the chipset specific interrupt code a bit. 2000-10-05 08:28:06 +00:00
Søren Schmidt
9b09a33635 Fix the MASTERDEV breakage the caused the PIIX controllers to get
missed in the probe. This might break the CMD chips again, more
testing is needed on that, but we need the mainstream chips to
work again ...
2000-10-04 08:28:37 +00:00
Søren Schmidt
162080b465 Add support for ServerWorks ROSB4 ATA33 chipset.
Add support for CMD 648 ATA66 & CMD 649 ATA100 chipsets.

Fix the "resource already allocated" panic with the CMD and other
braindead controllers.

Add options ATA_ENABLE_TAGS, without this option tagged queuing will
not be attempted.
2000-10-03 13:12:36 +00:00
Doug Rabson
f6174366bf Make the alpha hacks dependant on __alpha__ instead of !__i386__. 2000-09-29 16:50:31 +00:00
Søren Schmidt
511e9e7251 Fix the breakage that snatched the ioports from the fdc device.
Fix promise support.
2000-09-24 18:19:43 +00:00
Søren Schmidt
c50cf4ac06 Remove unneeded includes
Pointed out by: phk
2000-09-20 07:00:24 +00:00
Søren Schmidt
8563f77dc9 Add support for tagged queuing on ATA drives. There is only support for
IBM's DPTA and DTLA series of drives (no other disk vendors are known
to support this) on non-Promise controllers (promise controllers lockup
when given the tagged queuing specific commands).
It gives especially master/slave comboes about 5% better performance.

Add support for the Promise ATA100 OEM chip (pdc20265)

Add support for the Cyrix 5530

Change the way status is read from the drives, use the alternate
status reg when possible.

Better support for DEVFS, the acdXtY devices are now created when needed.

Lots of little cleanups.
2000-09-19 11:08:39 +00:00
Søren Schmidt
53d07b1ebb Only read to the end of the select track. 2000-09-18 12:13:32 +00:00
John Baldwin
9a94c9c5c3 - Remove the inthand2_t type and use the equivalent driver_intr_t type from
newbus for referencing device interrupt handlers.
- Move the 'struct intrec' type which describes interrupt sources into
  sys/interrupt.h instead of making it just be a x86 structure.
- Don't create 'ithd' and 'intrec' typedefs, instead, just use 'struct ithd'
  and 'struct intrec'
- Move the code to translate new-bus interrupt flags into an interrupt thread
  priority out of the x86 nexus code and into a MI ithread_priority()
  function in sys/kern/kern_intr.c.
- Remove now-uneeded x86-specific headers from sys/dev/ata/ata-all.c and
  sys/pci/pci_compat.c.
2000-09-13 18:33:25 +00:00
Jason Evans
0384fff8c5 Major update to the way synchronization is done in the kernel. Highlights
include:

* Mutual exclusion is used instead of spl*().  See mutex(9).  (Note: The
  alpha port is still in transition and currently uses both.)

* Per-CPU idle processes.

* Interrupts are run in their own separate kernel threads and can be
  preempted (i386 only).

Partially contributed by:	BSDi (BSD/OS)
Submissions by (at least):	cp, dfr, dillon, grog, jake, jhb, sheldonh
2000-09-07 01:33:02 +00:00
Doug Rabson
21c3015a24 * Completely rewrite the alpha busspace to hide the implementation from
the drivers.
* Remove legacy inx/outx support from chipset and replace with macros
  which call busspace.
* Rework pci config accesses to route through the pcib device instead of
  calling a MD function directly.

With these changes it is possible to cleanly support machines which have
more than one independantly numbered PCI busses. As a bonus, the new
busspace implementation should be measurably faster than the old one.
2000-08-28 21:48:13 +00:00
Søren Schmidt
b0bb0aeb95 Rearrange the probe a bit, hopefully this will help to eleminate
some of the fake devices sometimes seen on single device ATA
channels.

Proberly fail on failures in ata-disk.c, retry instead of hang.

Cleanup the VIA probe/init code a bit.

Fix a couble of missing free's in atapi-cd.c in the changer code.
2000-08-16 07:09:04 +00:00
Søren Schmidt
710591b796 Fix off by one error in track# calculation. 2000-08-13 09:08:19 +00:00
Søren Schmidt
ae97e232fb Backout the tsleep on probe, it breaks in resume mode as tsleep
not always has a context to sleep on.
Back to the drawing board...
2000-08-11 10:34:22 +00:00
Søren Schmidt
071e6e581e Add support for accessing individual tracks on a CD.
This is done by misusing the device minor a bit to encode the
track no there.

So to read track #4 just use /dev/acdNt4 where N is the device #.

The driver no automatically sets the blocksize (sectorsize) to
what the track is set to in the TOC.

This has the nice effect that you can now rip audioi tracks
by simply doing:

dd if=/dev/acdNt2 of=audiotrack2.raw bs=2352

it cant be much simpler than that :)

NOTE: the original acdNa & acdNc device still work as usual,
except the blocksize is set according to track0.
2000-08-11 09:21:36 +00:00
Søren Schmidt
4466a3504d Fix the ICH2 ATA100 support, and proberly downgrade the chip setup when
going to slower DMA modes on all Intel chips.
2000-08-10 07:34:49 +00:00
Søren Schmidt
bfc0a42650 Fix braino in the tsleep call, ata_delayed_attach might be a NULL
pointer..
2000-08-08 14:57:36 +00:00
Søren Schmidt
ab418d7db3 Add experimental code for ATA100 support on:
Promise Ultra100 / Fasttrak100
HighPoint HPT370 controllers (fx Abit KA7-100 onboard ctrl, Abit HotRod 100)
Intel ICH2 (Intel 815E based motherboards)

So far I can read >90MB/s on the Promise and the HPT370.
I can write >64MB/s on the promise and >50MB/s on the HPT370 so it seems
writing is still done in ATA66 mode :(
The ICH2 support is untested as of yet...
2000-08-06 19:51:58 +00:00
Søren Schmidt
19095fd23c Use tsleep instead od DELAY in probe when not in boot.
This fixes the uptil 30s hangs on PCCARD ata device probes.
2000-08-06 19:10:05 +00:00
Søren Schmidt
0ec4d7b5b0 Remove sequence checking in the burner support.
This was really a leftover from the wormcontrol days, it is no longer
needed when using burncd.
2000-08-06 18:03:42 +00:00
Søren Schmidt
e7d1a5c2b1 Be a bit more restrictive in using multisector transfers. 2000-08-06 18:01:47 +00:00
Steve Price
bf11d3dcda Spell the word 'limited' with only one 't'. 2000-07-30 17:54:34 +00:00
Poul-Henning Kamp
77978ab8bc Previous commit changing SYSCTL_HANDLER_ARGS violated KNF.
Pointed out by:	bde
2000-07-04 11:25:35 +00:00
Poul-Henning Kamp
82d9ae4e32 Style police catches up with rev 1.26 of src/sys/sys/sysctl.h:
Sanitize SYSCTL_HANDLER_ARGS so that simplistic tools can grog our
sources:

        -sysctl_vm_zone SYSCTL_HANDLER_ARGS
        +sysctl_vm_zone (SYSCTL_HANDLER_ARGS)
2000-07-03 09:35:31 +00:00
Poul-Henning Kamp
4bd02a5609 Add disk_enumerate() for finding names of disks. Vinum and libh will
need this RSN.

Remove a pointless warning in the root device locating code.

Remove the "wd" compatibility name from the "ad" driver.

WARNING: If you have not updated to use /dev/wd* in your /etc/fstab
and modern bootblocks, it would be a very good idea to do so BEFORE
you upgrade your kernel.
2000-06-15 20:30:53 +00:00
Doug Rabson
1536418a84 Brucify the pmap_enter_temporary() changes. 2000-05-29 19:21:01 +00:00
Doug Rabson
31891bc2bd Add a new pmap entry point, pmap_enter_temporary() to be used during
dumps to create temporary page mappings. This replaces the use of CADDR1
which is fairly x86 specific.

Reviewed by: dillon
2000-05-28 15:49:55 +00:00
Søren Schmidt
724a60faf8 Cosmetics: dont say Unknown but Generic chipset in probe.. 2000-05-28 07:51:23 +00:00
Søren Schmidt
5158543d6a Fix alignment problem on the alpha reported by several parties. 2000-05-28 07:50:19 +00:00
Jake Burkholder
e39756439c Back out the previous change to the queue(3) interface.
It was not discussed and should probably not happen.

Requested by:		msmith and others
2000-05-26 02:09:24 +00:00
Jake Burkholder
740a1973a6 Change the way that the queue(3) structures are declared; don't assume that
the type argument to *_HEAD and *_ENTRY is a struct.

Suggested by:	phk
Reviewed by:	phk
Approved by:	mdodd
2000-05-23 20:41:01 +00:00
Søren Schmidt
5996ceaaa9 Fix a nasty bug in ata_intr, parens are a good thing if used right.
Make the error recovery code a little more obvious.

Inform the user if UDMA66 mode couldn't be selected due to a
non ATA66 compliant 80pin cable.

Minor cosmetics.
2000-05-23 19:05:56 +00:00
Peter Wemm
0385347c1a Implement an optimization of the VM<->pmap API. Pass vm_page_t's directly
to various pmap_*() functions instead of looking up the physical address
and passing that.  In many cases, the first thing the pmap code was doing
was going to a lot of trouble to get back the original vm_page_t, or
it's shadow pv_table entry.

Inspired by: John Dyson's 1998 patches.

Also:
Eliminate pv_table as a seperate thing and build it into a machine
dependent part of vm_page_t.  This eliminates having a seperate set of
structions that shadow each other in a 1:1 fashion that we often went to
a lot of trouble to translate from one to the other. (see above)
This happens to save 4 bytes of physical memory for each page in the
system.  (8 bytes on the Alpha).

Eliminate the use of the phys_avail[] array to determine if a page is
managed (ie: it has pv_entries etc).  Store this information in a flag.
Things like device_pager set it because they create vm_page_t's on the
fly that do not have pv_entries.  This makes it easier to "unmanage" a
page of physical memory (this will be taken advantage of in subsequent
commits).

Add a function to add a new page to the freelist.  This could be used
for reclaiming the previously wasted pages left over from preloaded
loader(8) files.

Reviewed by:	dillon
2000-05-21 12:50:18 +00:00
Poul-Henning Kamp
9626b608de Separate the struct bio related stuff out of <sys/buf.h> into
<sys/bio.h>.

<sys/bio.h> is now a prerequisite for <sys/buf.h> but it shall
not be made a nested include according to bdes teachings on the
subject of nested includes.

Diskdrivers and similar stuff below specfs::strategy() should no
longer need to include <sys/buf.> unless they need caching of data.

Still a few bogus uses of struct buf to track down.

Repocopy by:    peter
2000-05-05 09:59:14 +00:00
Søren Schmidt
af5bd99e9a Fix for the HP burners (and possibly other broken drives to)
that fails to proberly close the disk.
The problem seems to be that the HP burners sometimes return
ready when they actually are not, the solution is to not use
immediate mode on the closing commands. This is suboptimal
for real burners, in that they now hog the ATA bus for possibly
minutes, where its really not nessesary, *sigh*.
2000-05-01 07:30:28 +00:00
Poul-Henning Kamp
67f3c95cf9 Clone the {b|bio}_offset field, and make sure it is always initialized
in struct bio.  Eventually, bio_offset will probably obsolete the
bio_blkno and bio_pblkno fields.

Remove the special hack in atapi-cd.c to determine of bio_offset was valid.
2000-04-25 10:51:18 +00:00
Poul-Henning Kamp
ed6aff7387 Remove unneeded <sys/buf.h> includes.
Due to some interesting cpp tricks in lockmgr, the LINT kernel shrinks
by 924 bytes.
2000-04-18 15:15:39 +00:00
Poul-Henning Kamp
8177437d85 Complete the bio/buf divorce for all code below devfs::strategy
Exceptions:
        Vinum untouched.  This means that it cannot be compiled.
        Greg Lehey is on the case.

        CCD not converted yet, casts to struct buf (still safe)

        atapi-cd casts to struct buf to examine B_PHYS
2000-04-15 05:54:02 +00:00
Søren Schmidt
4175758a2d Add support for ATA66 on newer revisions of the VIA 82C596 2000-04-09 15:08:27 +00:00
Poul-Henning Kamp
c244d2de43 Move B_ERROR flag to b_ioflags and call it BIO_ERROR.
(Much of this done by script)

Move B_ORDERED flag to b_ioflags and call it BIO_ORDERED.

Move b_pblkno and b_iodone_chain to struct bio while we transition, they
will be obsoleted once bio structs chain/stack.

Add bio_queue field for struct bio aware disksort.

Address a lot of stylistic issues brought up by bde.
2000-04-02 15:24:56 +00:00
Søren Schmidt
eae50c69b3 Correct a mishap in phk's BIO_* changes. 2000-03-26 12:01:27 +00:00
Søren Schmidt
8c918526a5 Fix the panic occuring on non-changer devices. 2000-03-24 07:44:20 +00:00
Søren Schmidt
c481f1fa74 Make ATAPI CD changer devices work, hopefully better than before. 2000-03-21 13:26:54 +00:00
Poul-Henning Kamp
21144e3bf1 Remove B_READ, B_WRITE and B_FREEBUF and replace them with a new
field in struct buf: b_iocmd.  The b_iocmd is enforced to have
exactly one bit set.

B_WRITE was bogusly defined as zero giving rise to obvious coding
mistakes.

Also eliminate the redundant struct buf flag B_CALL, it can just
as efficiently be done by comparing b_iodone to NULL.

Should you get a panic or drop into the debugger, complaining about
"b_iocmd", don't continue.  It is likely to write on your disk
where it should have been reading.

This change is a step in the direction towards a stackable BIO capability.

A lot of this patch were machine generated (Thanks to style(9) compliance!)

Vinum users:  Greg has not had time to test this yet, be careful.
2000-03-20 10:44:49 +00:00
Søren Schmidt
2a14fd50d9 Remove the old DSC code, it doesn't work anymore. 2000-03-18 22:42:45 +00:00
Søren Schmidt
0d611a6c29 Cleanup sweep. 2000-03-13 12:27:11 +00:00
Søren Schmidt
cfb21bbb7d Enable disksort the right way both on ATA disks and ATAPI devices. 2000-03-13 12:04:58 +00:00
Søren Schmidt
8048917432 Backout the previous fix, it is _not_ that easy too fix.
Leave it as is for 4.0 the real solution comes later.
2000-03-13 09:10:25 +00:00
Søren Schmidt
4c435787ab Dont call ad_start unless the controller is idle.
This effectively nullified the usefullness of disksort().
2000-03-12 13:56:05 +00:00
Søren Schmidt
924f6734a5 Cosmetics.. 2000-03-10 22:10:34 +00:00
Søren Schmidt
643b70ec9d Dont call make_dev until we are sure the device is there, this prevents
panic'ing when the device is tried accessed later.
2000-03-10 08:09:53 +00:00
Søren Schmidt
aaa29cf209 Fix the CD driver so that the last blocks can be read even if
a blocksize != 2k is used.
Update the timeout code to try fallback to PIO if problems
arise in DMA mode.
2000-03-05 16:52:26 +00:00
Søren Schmidt
b744c0fdc6 Spell construct right. 2000-03-01 14:39:51 +00:00
Søren Schmidt
7caf73fb3c Add DVD-RAM support.
The driver constructs a fake disklabel that makes the 'a' partition
cover the entire DVD-RAM disk. This cannot be changed from the user
side. This solution was chosen because most DVD-RAM will have a
UDF (or until we have that CD9660) filesystem on it covering the
entire disk, its not really thought as a real random access device.

This might change over time, but for now this is what we have, and
it is compatible with CDROM's etc, that makes using the minidisk
subsystem less than ideal, because of !modulo BDEV_SIZE blocks.
2000-02-29 22:00:53 +00:00
Søren Schmidt
41ef40c93d Only read user data when blocksize != 2048, this "read the works"
sneaked in sometime which is not what the average user wants.
2000-02-29 16:11:18 +00:00
Søren Schmidt
cb66e8d4e3 Fix the problem that caused the boot to fail when modules were loaded.
Real braino, confuses two different softc types, I wonder how this
could ever work :(
2000-02-27 12:41:07 +00:00
Søren Schmidt
1a488af60f Add (partial) support for the Cypress ATA controller.
Call intr_teardown on detach.

Always add non masterdevice from unit 2 upwards.

Update to the pccard code, at least some cards are now working,
more testing to follow.
2000-02-25 09:48:23 +00:00
Søren Schmidt
9bd1c89ad3 Add UDMA66 support to the Intel ICH chip.
Submitted by: sakichan@lares.dti.ne.jp
2000-02-22 20:37:01 +00:00
Søren Schmidt
456b5ad253 Fix the changer code, dont wait for device ready on unload, it
wont become ready as there is no media - doh.

Update the command name reporting.
2000-02-21 18:41:05 +00:00
Søren Schmidt
47351d2774 Update the ata driver to take more advantage of newbus, this
was needed to make attach/detach of devices work, which is
needed for the PCCARD support.
(PCCARD support is still not working though, more to come on that)

Support the CMD646 chip which is used on many alphas, sadly only
in WDMA2 mode, as the silicon is broken beyond belief for UDMA modes.

Lots of cosmetic fixes here and there.

Sorry for the size of this megapatchfromhell but it was not
possible otherwise...

newbus patches based on work from: dfr (Doug Rabson)
2000-02-18 20:57:33 +00:00
Søren Schmidt
32c3d17908 That "NO DRIVER" panic fix wasn't good enough... 2000-02-11 07:37:00 +00:00
Søren Schmidt
1af69d6936 Probe cosmetics. 2000-02-08 18:38:39 +00:00
Søren Schmidt
cc8baa1136 The bde script has a bug, I used a patch from it verbatim, bad idea....
Fixed...
2000-02-08 16:39:11 +00:00
Søren Schmidt
e8359a57de Do refcounting of open devices (more) correctly.
count_dev funtion by phk.
2000-02-07 23:05:40 +00:00
Søren Schmidt
a9ec39136b Dont panic if no sub-driver is found. 2000-02-07 22:57:11 +00:00
Søren Schmidt
77145a3388 Unbreak addump, now dumping works again. 2000-02-07 22:56:32 +00:00
Søren Schmidt
96ebd6d1fc fix support for shared IRQ's.
fix support for multiple HPT & Promise controllers.

support mixed 33/66 devices on the Promise 66 controllers.

fix the refcount stuff in the atapi drivers.

misc cleanups.
2000-02-04 10:20:22 +00:00
Søren Schmidt
4de1cbfab9 cosmetic changes only. 2000-01-29 22:38:36 +00:00
Søren Schmidt
eff43d0e8a cosmetic changes only. 2000-01-29 14:10:59 +00:00
Søren Schmidt
a4fec20898 Get the MEDIA_CHANGED status right here too. 2000-01-28 22:17:29 +00:00
Søren Schmidt
211a760057 Use atapi_test_ready not atapi_wait_ready, I need more sleep :( 2000-01-28 21:30:31 +00:00
Søren Schmidt
78e0324341 Get the MEDIA_CHANGED status right. 2000-01-28 21:03:25 +00:00
Søren Schmidt
0b905b407e Fix the atapi-fd.c (afd device) so that fx MSDOS formatted ZIP
disks can be mounted. Use b_pblkno instead of b_blkno

Found by: phk

Protect (proberly) against setting modes on nonexisting devices.
2000-01-28 20:18:19 +00:00
Søren Schmidt
96478887ff Fix compilation on ISA only setups... 2000-01-28 15:57:13 +00:00
Søren Schmidt
02ce0452e1 Cleanup the ata_dmainit function a bit.
Also allow BIOS setup DMA on unknown controllers.
2000-01-28 13:35:43 +00:00
Søren Schmidt
6a7f51845b Oops, fix compile error due to the new way of storing the transfer mode. 2000-01-28 08:03:21 +00:00
Søren Schmidt
0fd4327bb6 Add sysctl oid hw.atamodes to set the transfermodes online. 2000-01-27 19:00:51 +00:00
Søren Schmidt
0817db9f98 Retry a bit more agressively on the atapi identify.
Try to support older systems reporting irq0 for the first channels.

Support sharing of the std interrupts (says peter :) )

Dont use READ_CD on normal data reads (2048 bytes), too many old drives
doesn't support this command even if the std says "shall" :(, but still
use READ_CD on all other blocksizes.

Add the geometry to the ad probe, its still usefull.
2000-01-25 20:14:51 +00:00
Søren Schmidt
fe08efdcfb General cleanup.
Dont be so verbose in the probe, only ONE line printed now, to get more
info boot verbose. Centralise most printf's in ata-all & ata-dma to use
the ata_printf function, it saves alot of codelines.

Repeat the identify command if drive fails the first.

Protect the timeout functions with splbio.

Dont update the transfer details before we are sure the transfer
succeded, this way they are proberly retried on errors.

Move the handling of next_writeable to userland.

Use the READ_CD command to read CD's. That enables us to read _anything_
via the normal read/write interface. This kindof obsoletes the READAUDIO
ioctl, but we keep that for now.
2000-01-24 20:45:24 +00:00
Søren Schmidt
6e5d660a63 Quantify the calls to ad_attach and atapi_attach so that diskless
or atapiless kernels can be built.
2000-01-19 07:25:46 +00:00
Søren Schmidt
974f34013a Rearrange the probecode, so that 80pin cables can be identified
correctly on both master and slave.
Smash together the ata_params & atapi_params structures as they
are more or less equal anyways.
Get rid of the last SYSINIT's in here.
2000-01-18 21:02:59 +00:00
Søren Schmidt
46a37dbac0 Add support for the Intel 810 chipset (ICH type of chips)
Prober support for the VIA 82C686, I finally got the right datasheet.

Get rid of atapi_wait, merge it into ata_wait.

Avoid a couple of races by using asleep instead of tsleep.

Always use 16bit transfers on ISA systems.

Clear up the atapi_read/write functions.
2000-01-17 02:04:19 +00:00
Søren Schmidt
9687efec89 Grrrr, this time it should be right, I need sleep - badly... 2000-01-07 15:51:45 +00:00
Søren Schmidt
39412a7ece This is not my lucky day :( 2000-01-07 13:15:42 +00:00
Søren Schmidt
af86437301 Guard against transfers of zero length given to *strategy. 2000-01-07 12:01:01 +00:00
Søren Schmidt
e960abaf96 Set PIO mode in all cases. 2000-01-07 08:28:41 +00:00
Søren Schmidt
14c2c6c8b1 New ATAPI burner utility API, replaces the wormio API. 2000-01-06 22:50:02 +00:00
Søren Schmidt
14fc459ef4 Fix link problem on ISA only systems.. 2000-01-03 20:01:18 +00:00
Søren Schmidt
aa966b9a64 Add support for VIA 82C596 controller
Better shared irq handeling for Promise & HPT366 controllers

Setup prober PIO mode timings on Promise & HPT366 controllers

Update Copyright headers to be Y2K compliant :)
2000-01-03 10:26:59 +00:00
Søren Schmidt
3ace5ae2c8 Yet another cleanup of the VIA code, this time it should work
on all combinations (I hope)...

Add DMA support for the AMD 756 chip (K7 chipset) this is actually the
same as the VIA 82C686 chip (the ATA part that is).

Treat the intel MX chipset PIIX as a PIIX4

Allow UDMA on all disks that say they can handle it.

Cleanup probe printf's a bit

Remove alot of the old #ifdef DEBUG crap.
1999-12-21 20:18:56 +00:00
Søren Schmidt
6be090b840 Relax the requirements for doing WDMA2, this should enable DMA
on non ATA[234] compliant disks.

Move all PCI dependent stuff under #ifdef NPCI > 0
1999-12-18 20:06:30 +00:00
Søren Schmidt
7d9451f143 Cleanup the probe messages a bit, show what the device really is, not
just "CDROM". Also cope with devices that doesn't report speed in
the old way, this should be changed into the new GET_PERFORMANCE
cmd instead..
1999-12-16 08:22:16 +00:00
Søren Schmidt
dbdfe960cb Have another go at the VIA support, this time use the PCI ID form the
main component in the southbridge chip to determine which VIA chip
we are dealing with.

Try to enable DMA on generic controllers that say they has the
capability, instead of relying on the BIOS to have set it up.
1999-12-14 10:25:28 +00:00
Søren Schmidt
54ecff8b84 Add DMA support for the SiS 5591 and old PIIX chipsets.
Add a missing DELAY(1) in ata_wait.

Change the info from ad_version, so the ATA version from the disk can
be used to quantify the DAM modes valid for this drive, ie be more
selective with turning DMA on on older disks that should not support it..

Fix the probe for BIOS enabled DMA in the generic case, master/slave
was reversed in the test.

Check the return for ata_command in all cases, and print warnings if
it fails.

Call ata_dmainit with all dmamodes off when falling back to PIO mode,
that should take care of both the Promise & HPT366 controllers not
being able to handle the fallback...

Cleanup the printf's in the drivers, use the prober device name (if
possible) instead of ataN-master/slave.
1999-12-13 10:19:39 +00:00
Søren Schmidt
fed48464cc Change the devstat priorities to the std values now in devicestats.h 1999-12-08 12:08:47 +00:00
Søren Schmidt
cb2a8dffa0 Commit the kernel part of our DVD support. Nothing much to say really,
its just a number of new ioctl's, the rest is done in userland.
1999-12-07 22:25:28 +00:00
Søren Schmidt
bd533091af Try a little harder at the VIA DMA support.
Only use UDMA66 on 82C686 and with prober cable.
1999-12-07 22:07:18 +00:00
Søren Schmidt
7420fbaac2 Fix support for disk with > 64K cyls. 1999-12-07 14:49:00 +00:00
Søren Schmidt
60c94e7628 Better error handeling:
On UDMA CRC errors retry operation as it might be a fluke, if not fall
back to PIO mode on the failing drive. If you get alot of these your
cabeling is most likely not good enough.

On HARD error using DMA, retry once using PIO, if it succeds using PIO
fall back to PIO mode on the failing drive.
1999-11-29 12:24:51 +00:00
Søren Schmidt
ad6eb979ba call ata_reinit in addump trying to make sure the dump will succed,
also check for errors underways, and make it possible to abort the
dump by hitting a key.
1999-11-27 17:06:10 +00:00
Søren Schmidt
7dfec6b427 Oops, committed the wrong file.. 1999-11-26 20:05:11 +00:00
Søren Schmidt
30f5b2a68e Fix atapi_wait_ready, it returned prematurely.
Less verbosity on non-fatal errors.
1999-11-26 19:26:04 +00:00
Søren Schmidt
a150cc4284 Tidy up the VIA support a bit, make it more generic. 1999-11-26 19:24:26 +00:00
Søren Schmidt
3082a6dc59 Add DMA support for the VIA 82C586 & 82C686 chips, also rearrange
to fall back to slower speeds if the faster ones fails to probe.

Log and retry request on UDMA CRC errors.

Fix a couple of warnings.
1999-11-24 21:40:05 +00:00
Søren Schmidt
bb8f8c633e Loose ad_sleep, its of no use anymore. 1999-11-19 08:21:15 +00:00
Søren Schmidt
5c7e184349 Dont listen to disks that say they can only do 0 sector transfers. 1999-11-10 19:37:00 +00:00
Søren Schmidt
6e82e8be6d Make the atapi device return sensible errno's back to userland.
Dont panic if a nonexistant device is opened.
1999-11-10 07:13:51 +00:00
Søren Schmidt
838b8e23b9 Unbreak ATAPI on the Aladdin chipset, only DMA access worked.
Try to use a 32bit mask on the IO addresses, this fixes the alpha
and hopefully doesn't break on any i386 machines.

Try to enable both read & write cache on disks, they should be as
default, but better be sure..
1999-11-08 21:36:00 +00:00
Søren Schmidt
3de25e2f32 Fix IRQ allocation bug on controllers using a shared interrupt.
Fix a bug which could cause panics in ad/atapi-interrupt.

Add support for UDMA66 on Promise Ultra/Fasttrak controllers.

Get rid of ATA_IGNORE_INTR, and introduce ATA_WAIT_INTR instead.

Add a delay in the dump routine in ata-disk.c, some controllers
seem to need this. Also dont use the timeout watchdog when dumping.

Disable DMA on ATAPI devices as default, add option ATA_ENABLE_ATAPI_DMA
for those that has HW that works.

Add support for some not-up-to-spec ATAPI devices that returns data
together with completition status on data moving cmd's.
1999-11-06 16:50:21 +00:00
Poul-Henning Kamp
923502ff91 useracc() the prequel:
Merge the contents (less some trivial bordering the silly comments)
of <vm/vm_prot.h> and <vm/vm_inherit.h> into <vm/vm.h>.  This puts
the #defines for the vm_inherit_t and vm_prot_t types next to their
typedefs.

This paves the road for the commit to follow shortly: change
useracc() to use VM_PROT_{READ|WRITE} rather than B_{READ|WRITE}
as argument.
1999-10-29 18:09:36 +00:00
Andrew Gallatin
ca4e37e1cf Increase the timeout to be 3*hz. This recalibrates the timeout so that
it has the same value on all platforms.  Previously it was just under
3 seconds on x86 (typically hz<=128) and just under 1/3 of a second on
alpha (typically hz>=1024).  This covers up a race between ad_interrupt()
and ad_timeout() which is being looked into.

reviewd by: sos
1999-10-18 17:55:38 +00:00
Doug Rabson
d8517c5437 Relax the check for class=storage, subclass=ide to just class=storage.
This allows ata to probe correctly for the HPT366 on Abit's BP6.
1999-10-16 09:00:49 +00:00
Doug Rabson
81f4abc9c1 Don't match non-IDE devices in probe.
Reviewed by: sos
1999-10-13 18:56:49 +00:00
Søren Schmidt
205a52de79 Fix a bug in the isa attach code which would panic isa systems. 1999-10-11 11:04:43 +00:00
Søren Schmidt
31694ea9b0 Remove unused include files.
Submitted by: phk
1999-10-10 18:08:40 +00:00
Søren Schmidt
2b0a1c086d Add support for the HPT366 chip, this is used on the Abit boards and
their HotRod controller and on SIIG PCI ultra DMA controller. These
changes also made lots of the Promise code go away, its all much more
generic this way.

Get rid of atapi_immed_cmd, instead use the queue to move atapi commands
from interrupt context if nessesary, the entire atapi layer has
gotten an overhaul.

Lots of fixes to utililize the new features in subr_disk.c etc, and
get rid of the last biots of softc arrays in the drivers, the
only one left is atadevices which cannot easily go away (yet).

Use our own malloc names, its a lot easier to track memory usage this way.

General cleanup overall.
1999-10-09 19:57:13 +00:00
Mike Smith
5c0b893d05 Be much more selective in claiming devices that might be IDE controllers.
The old algorithm was:

 if class == storage and subclass != SCSI device must be IDE

This results in claiming 'raid' and 'other' storage devices as IDE,
which is typically not the case.

Reviewed by:	sos
1999-10-07 02:17:21 +00:00
Nick Hibma
3e2c6ca3b9 Removal of sys/device.h
- Move intrhook stuff into kernel.h
- Remove all occurrences of #device <device.h>
- Add kernel.h were necessary (nowhere)
- delete device.h

This file contained the structures for cfdata (old style config) and is no
longer used. It was included by most drivers.

It confuses the remote debugger as the definition of 'struct device' in
device.h is found before the one in bus_private.h.
1999-10-05 21:19:41 +00:00
Bruce Evans
503e666658 Fixed "misspelling" of bcmp as memcmp. memcmp doesn't exist in the
kernel, but gcc provides a pessimal builtin for it.

Makefile.i386:
Added a variable (CONF_CFLAGS) for configuration-specific compiler flags.

LINT:
Use CONF_CFLAGS to inhibit use of gcc builtins.
1999-10-03 07:09:31 +00:00
Peter Wemm
fe49e6c57c Use the sys/wormio.h definitions of the CDRIOCNEXTWRITEABLEADDR and
CDRIOCBLANK ioctls rather than duplicating them.
1999-10-01 14:14:20 +00:00
Poul-Henning Kamp
d6a0e38a1b Remove five now unused fields from struct cdevsw. They should never
have been there in the first place.  A GENERIC kernel shrinks almost 1k.

Add a slightly different safetybelt under nostop for tty drivers.

Add some missing FreeBSD tags
1999-09-25 18:24:47 +00:00
Søren Schmidt
27fceb7416 Fix timeout handeling and add retry counts.
Add HPT366 probe message (but no real support yet),
Add CDR support for several diffenrent blocktypes, also close
disk as a multisession CD.
1999-09-24 12:36:10 +00:00
Søren Schmidt
fbf6ea790a Support quad & max speeds in wormcontrol.
A bit more general cleanup.
1999-09-22 12:04:51 +00:00
Søren Schmidt
0720c0ebbe I knew it, I introduced new bugs :)
The lun is not incremented in the ata-disk driver when ATA_STATIC_ID
is not defined, thanks to Kenneth Wayne Culver <culverk@wam.umd.edu>
for finding that one.

PHK pointed at the & problem in atapi-cd in devstat_end_transaction_buf.

Too little sleep I guess...
1999-09-22 07:15:46 +00:00
Søren Schmidt
3427651043 Ten'th update to the new ATA/ATAPI driver:
It been awhile since the last major update, as a benefit there
are some cool things in this one (and new bugs probably :) )...

The ATA driver has grown "real" timeout support for all devices.
This means that it should be possible to get in contact with
(especially) lost ATAPI devices. It also means that the ATA
driver is now usable on notebooks as it will DTRT on resume.

An experimental hack at utilizing the Promise66's at UDMA66 is
in there, but I cant test it. If someone feels like sending
me one, give me a ping.

The ATAPI DMA enableling scheme has been changed, also better DMA
support for the Aladdin chipset has been implemented for ATAPI
devices. Note that the Aladdin apparently only can do DMA reads
on ATAPI devices, and the Promise cant do ATAPI DMA at all.
I have seen problems on some ATAPI devices that should be able
to run in DMA mode, so if you encounter problems with hanging
atapi devices during the probe, or during access, disable DMA
in atapi-all.c, and let me know. It might be nessesary to do this
via a "white list" for known good devices...

The ATAPI CDROM driver can now use eject/close without hanging and
the bug that caused reading beyond the end of a CD has been fixed.
Media change is also handled proberly. DVD drives are identified
and are usable as CDROM devices at least, I dont have the HW to
test this further, see above :).

The ATAPI tape driver has gotten some support for using the DSC
method for not blocking the IDE channel during read/write when
the device has full buffers. It knows about the OnStream DI-30
device, support is not completed yet, but it can function as a
primitive backup medium, without filemarks, and without bad media
handeling. This is because the OnStream device doesn't handle this
(like everybody else) in HW. It also now supports getting/setting
the record position on devices that supports it.

Some rather major cleanups and rearrangements as well (cvs -b diff
is your freind). I'm closing in on declaring this for beta code,
most of the infrastruture is in place by now.

As usual USE AT YOUR OWN RISK!!, this is still alpha level code.
This driver can hose your disk real bad if anything goes wrong, but
now you have been warned :)

But please tell me how it works for you!

Enjoy!

-Søren
1999-09-21 19:50:40 +00:00
Poul-Henning Kamp
2186cd9e8d Use devstat_end_transaction_buf() rather than Use devstat_end_transaction() 1999-09-18 21:30:27 +00:00
Poul-Henning Kamp
2016e4e906 Bite the bullet and allocate the devsw entry at compile time. 1999-09-12 20:40:29 +00:00
Poul-Henning Kamp
8072a14e83 Don't register a bmajor.
Approved by:	sos
1999-09-08 18:45:52 +00:00
Poul-Henning Kamp
9e33123898 nullclose, not noclose of course. 1999-09-05 15:41:09 +00:00
Poul-Henning Kamp
9c48bdd348 Use micro "disk" layer in ata-disk
Reviewed by:	sos
1999-09-03 10:57:17 +00:00
Poul-Henning Kamp
a2f21fdc51 Set si_bsize_phys to 2048 for cdrom.
Reviewed by:	sos
1999-09-03 10:56:27 +00:00
Doug Rabson
4249382df0 This represents essentially a complete rewrite of the ISA PnP code. The
new system is integrated with the ISA bus code more cleanly and allows
the future addition of more enumerators such as PnPBIOS and ACPI.

This commit also enables the new pcm driver since it is somewhat tied to
the new PnP code.
1999-09-01 20:53:43 +00:00
Poul-Henning Kamp
10af1a2b5f We don't need to pass the diskname argument all over the diskslice/label
code, we can find the name from any convenient dev_t
1999-08-28 14:33:44 +00:00
Peter Wemm
c3aac50f28 $Id$ -> $FreeBSD$ 1999-08-28 01:08:13 +00:00
Poul-Henning Kamp
9dcbe2404a Convert DEVFS hooks in (most) drivers to make_dev().
Diskslice/label code not yet handled.

Vinum, i4b, alpha, pc98 not dealt with (left to respective Maintainers)

Add the correct hook for devfs to kern_conf.c

The net result of this excercise is that a lot less files depends on DEVFS,
and devtoname() gets more sensible output in many cases.

A few drivers had minor additional cleanups performed relating to cdevsw
registration.

A few drivers don't register a cdevsw{} anymore, but only use make_dev().
1999-08-23 20:59:21 +00:00
Poul-Henning Kamp
49ff4debd3 Spring cleaning around strategy and disklabels/slices:
Introduce BUF_STRATEGY(struct buf *, int flag) macro, and use it throughout.
please see comment in sys/conf.h about the flag argument.

Remove strategy argument from all the diskslice/label/bad144
implementations, it should be found from the dev_t.

Remove bogus and unused strategy1 routines.

Remove open/close arguments from dssize().  Pick them up from dev_t.

Remove unused and unfinished setgeom support from diskslice/label/bad144 code.
1999-08-14 11:40:51 +00:00
Søren Schmidt
f63c7e582a Support DMA on ATAPI devices (finally).
This makes my system use only ~5% CPU on reading 4.5Mbyte/sec
from a CDROM, which before was limitted to 1.8Mbyte/sec due
to 100% CPU load..
1999-08-10 21:59:58 +00:00
Søren Schmidt
2203dc0030 Add limitted support for the Promise Ultra/66 controller. Its
only supported upto UDMA33 like the old Promise, but it works
now. More when I have specs ....
1999-08-06 17:39:38 +00:00
Poul-Henning Kamp
835646d6ef slight change in the way we hi-jack the wd drivers cdevsw. 1999-07-17 17:55:53 +00:00
Søren Schmidt
c4217f94eb Nine'th update to the new ATA/ATAPI driver:
The atapi subsystem has gotten better error handeling and timeouts,
it also tries a REQUEST SENSE command when devices returns errors,
to give a little more info as to what went wrong. It might be a
little verbose for now, but I'm interested in as much feedback on
errors as possible, especially timeouts, as I'm a bit in doubt if
I've chosen resonable default values everywhere.

The disk driver has been changed a bit to prepare for tagged queing,
which is next on my list.

The disk driver has grown a dump routine, I got one implementation
from Darrell Anderson <anderson@cs.duke.edu> which also did
partial dumps (usefull on big memory machines) I left out the
partial stuff for now, and changed the rest alot to fit into the new
ad_request framework.

Some minor cleanups and rearrangements as well.

As usual USE AT YOUR OWN RISK!!, this is still pre alpha level code.
Especially the DMA support can hose your disk real bad if anything
goes wrong, again you have been warned :)
Notebook owners should be carefull that their machines dont suspend
as this might cause trouble...

But please tell me how it works for you!

Enjoy!

-Søren
1999-06-25 09:03:07 +00:00
Poul-Henning Kamp
2447bec829 Simplify cdevsw registration.
The cdevsw_add() function now finds the major number(s) in the
struct cdevsw passed to it.  cdevsw_add_generic() is no longer
needed, cdevsw_add() does the same thing.

cdevsw_add() will print an message if the d_maj field looks bogus.

Remove nblkdev and nchrdev variables.  Most places they were used
bogusly.  Instead check a dev_t for validity by seeing if devsw()
or bdevsw() returns NULL.

Move bdevsw() and devsw() functions to kern/kern_conf.c

Bump __FreeBSD_version to 400006

This commit removes:
        72 bogus makedev() calls
        26 bogus SYSINIT functions

if_xe.c bogusly accessed cdevsw[], author/maintainer please fix.

I4b and vinum not changed.  Patches emailed to authors.  LINT
probably broken until they catch up.
1999-05-31 11:29:30 +00:00
Poul-Henning Kamp
4e2f199e0c This commit should be a extensive NO-OP:
Reformat and initialize correctly all "struct cdevsw".

        Initialize the d_maj and d_bmaj fields.

        The d_reset field was not removed, although it is never used.

I used a program to do most of this, so all the files now use the
same consistent format.  Please keep it that way.

Vinum and i4b not modified, patches emailed to respective authors.
1999-05-30 16:53:49 +00:00
Andrew Gallatin
50b8d1cce4 Allow chipset drivers to specify the direct-mapped DMA window's mask in
preparation for tsunami support.  Previous chipsets' direct-mapped DMA
mask was always 1024*1024*1024.  The Tsunami chipset needs it to be
2*1024*1024*1024

These changes should not affect the i386 port

Reviewed by:	Doug Rabson <dfr@nlsystems.com>
1999-05-26 23:01:57 +00:00
Søren Schmidt
dc82ab74e3 Eigth update to the new ATA/ATAPI driver:
Fixed problems:

    LS120/ZIP drives still currupted data.
	Reworked once again, buffered I/O is just ignoring any sizehints
	it is given :(
	Now the atapifd driver splits up requests for devices that has
	limitted transfer size.

    ISA only configs fails on boot with interrupt timeouts.
	The new-bus integration introduced a bug where the softc ptr
	was lost during the probe.

Some minor cleanups and rearrangements as well.

As usual USE AT YOUR OWN RISK!!, this is still pre alpha level code.
Especially the DMA support can hose your disk real bad if anything
goes wrong, again you have been warned :)
Notebook owners should be carefull that their machines dont suspend
as this might cause trouble...

But please tell me how it works for you!

Enjoy!
1999-05-20 09:12:06 +00:00
Søren Schmidt
b5bb732345 Seventh update to the new ATA/ATAPI driver:
Fixed problems:

    LS120 drives currupted data.
	The workaround for drives not supporting upto 64K transfers
	has been reworked. It works now both on LS120 & ZIP drives.

    ISA only configs wont compile.
	Fixed.

    The ATA driver wont share interrupts.
	Fixed.

    The "unwanted interrupt" warning gave wrong controller.
	Another lun<>unit messup from the newbus integration.

Some minor cleanups and rearrangements as well.

As usual USE AT YOUR OWN RISK!!, this is still pre alpha level code.
Especially the DMA support can hose your disk real bad if anything
goes wrong, again you have been warned :)
Notebook owners should be carefull that their machines dont suspend
as this might cause trouble...

But please tell me how it works for you!

Enjoy!

-Søren
1999-05-17 15:58:47 +00:00
Poul-Henning Kamp
bfbb9ce670 Divorce "dev_t" from the "major|minor" bitmap, which is now called
udev_t in the kernel but still called dev_t in userland.

Provide functions to manipulate both types:
        major()         umajor()
        minor()         uminor()
        makedev()       umakedev()
        dev2udev()      udev2dev()

For now they're functions, they will become in-line functions
after one of the next two steps in this process.

Return major/minor/makedev to macro-hood for userland.

Register a name in cdevsw[] for the "filedescriptor" driver.

In the kernel the udev_t appears in places where we have the
major/minor number combination, (ie: a potential device: we
may not have the driver nor the device), like in inodes, vattr,
cdevsw registration and so on, whereas the dev_t appears where
we carry around a reference to a actual device.

In the future the cdevsw and the aliased-from vnode will be hung
directly from the dev_t, along with up to two softc pointers for
the device driver and a few houskeeping bits.  This will essentially
replace the current "alias" check code (same buck, bigger bang).

A little stunt has been provided to try to catch places where the
wrong type is being used (dev_t vs udev_t), if you see something
not working, #undef DEVT_FASCIST in kern/kern_conf.c and see if
it makes a difference.  If it does, please try to track it down
(many hands make light work) or at least try to reproduce it
as simply as possible, and describe how to do that.

Without DEVT_FASCIST I belive this patch is a no-op.

Stylistic/posixoid comments about the userland view of the <sys/*.h>
files welcome now, from userland they now contain the end result.

Next planned step: make all dev_t's refer to the same devsw[] which
means convert BLK's to CHR's at the perimeter of the vnodes and
other places where they enter the game (bootdev, mknod, sysctl).
1999-05-11 19:55:07 +00:00
Doug Rabson
566643e39e Move the declaration of the interrupt type from the driver structure
to the BUS_SETUP_INTR call.
1999-05-08 21:59:43 +00:00
Peter Wemm
e8b22b43e4 GC stray static prototypes for physread/physwrite which don't exist
statically and cause compile warnings.
1999-05-07 16:37:06 +00:00
Poul-Henning Kamp
c48d17750f Introduce two functions: physread() and physwrite() and use these directly
in *devsw[] rather than the 46 local copies of the same functions.

(grog will do the same for vinum when he has time)
1999-05-07 07:03:47 +00:00
Poul-Henning Kamp
f711d546d2 Suser() simplification:
1:
  s/suser/suser_xxx/

2:
  Add new function: suser(struct proc *), prototyped in <sys/proc.h>.

3:
  s/suser_xxx(\([a-zA-Z0-9_]*\)->p_ucred, \&\1->p_acflag)/suser(\1)/

The remaining suser_xxx() calls will be scrutinized and dealt with
later.

There may be some unneeded #include <sys/cred.h>, but they are left
as an exercise for Bruce.

More changes to the suser() API will come along with the "jail" code.
1999-04-27 11:18:52 +00:00
Søren Schmidt
3bbf78853f Fix the promise_intr function, it should use 'lun' not 'unit'
to get the offset into ata_devices.
1999-04-22 08:07:44 +00:00
Peter Wemm
ab64f2390c Merge a diff that Soren sent me to resolve some lun / unit problems.
While here, also fix my additions to use naming that's more consistant
with Sorens.  (ie: s/softc/scp/)
1999-04-21 10:58:07 +00:00
Peter Wemm
54a8c69347 Stage 1 of a cleanup of the i386 interrupt registration mechanism.
Interrupts under the new scheme are managed by the i386 nexus with the
awareness of the resource manager.  There is further room for optimizing
the interfaces still.  All the users of register_intr()/intr_create()
should be gone, with the exception of pcic and i386/isa/clock.c.
1999-04-21 07:26:30 +00:00
Søren Schmidt
f1cb6ca392 Update to use the new-bus framework. No functional changes.
Mostly done by Doug Rabson, minor fixes by me.
1999-04-18 20:48:15 +00:00
Peter Wemm
6182fdbda8 Bring the 'new-bus' to the i386. This extensively changes the way the
i386 platform boots, it is no longer ISA-centric, and is fully dynamic.
Most old drivers compile and run without modification via 'compatability
shims' to enable a smoother transition.  eisa, isapnp and pccard* are
not yet using the new resource manager.  Once fully converted, all drivers
will be loadable, including PCI and ISA.

(Some other changes appear to have snuck in, including a port of Soren's
 ATA driver to the Alpha.  Soren, back this out if you need to.)

This is a checkpoint of work-in-progress, but is quite functional.

The bulk of the work was done over the last few years by Doug Rabson and
Garrett Wollman.

Approved by:	core
1999-04-16 21:22:55 +00:00
Søren Schmidt
775986fc09 Sixth update to the new ATA/ATAPI driver:
Fixed problems:

    Promise controllers was not always set up correctly.
        Parantheses are a good thing, fixed.

    Some older CDROM's could hang the probe.
        Proberly wait for the drive to catch its breath after IDENTIFY.

    Some CD writers fails because they dont support rezero.
        Rearranged the code to not use rezero.

    Warnings now that we use EGCS.
        Fixed.
1999-04-10 18:53:35 +00:00
Søren Schmidt
74fa06c717 Make ISA only systems compile again.. 1999-03-30 13:09:47 +00:00
Søren Schmidt
20f20ae658 Fix bug in the Promise code that resultet in PIO always being selected. 1999-03-29 14:24:42 +00:00
Søren Schmidt
55bfaed1c0 Fourth update to the new ATA/ATAPI driver:
Well, better late than newer, but things has been hectic
around here, sorry for the long delay.

DMA support has been added to the ATA disk driver.
This only works on Intel PIIX3/4, Acer Aladdin and Promise controllers.
The promise support works without the BIOS on the board,
and timing modes are set to support up to UDMA speed. This
solves the problems with having more than one promise controller
in the same system.
There is support for "generic" DMA, that might work on other
controllers, but now you have been warned :)
More chipset specific code will come soon, I have to find testers
with the approbiate HW, more on that when I have it ready.

The system now uses its own major numbers, please run MAKEDEV
with the devices you need (ad?, acd?, afd?, ast?).
For now the disk driver will also attach to the old wd major
so one can at least boot without this step, but be warned, this
will eventually go away. The bootblocks will have to be changed
before one can boot directly from an "ad" device though.

Fixed problems:

    All known hang problems should be solved
	The probe code has been sligthly changed, this should solve
	the reports I have lying around (I hope).

    Hangs when accessing ata & atapi device on the same channel simultaniously.
	A real braino in ata_start caused this, fixed.

As usual USE AT YOUR OWN RISK!!, this is still pre alpha level code.
Especially the DMA support can hose your disk real bad if anything
goes wrong, agaiin you have been warned :)

But please tell me how it works for you!

Enjoy!

-Søren
1999-03-28 18:57:20 +00:00
Søren Schmidt
989fb3947c ZIP drives should now be working, I'm not sure about LS120 drives,
reports on those most welcome!

Fixed problems:

    Hang on probe on "fantom" devices.
	The probe now use a timeout to avoid hangs if no interrupt
	is recevied.

There has also been more general code clenaups, and some reorgs.
1999-03-07 21:49:14 +00:00
Søren Schmidt
2e526e2ac0 Now all actual probing of both ATA & ATAPI devices are done after
interrupts are enabled, this kills the last "unwanted interrupts"
(and there is no ugly hacks like in the old driver to avoid them).
COmmand interrupt devices are now supported, this applies mostly
to older CDROM's and apparently also the ZIP.

Fixed problems:

    Number of total sectors wrong on some older drives.
        Fixed by not using the LBA size unless we know its valid.

There has also been more general code clenaups, some reorgs also.
1999-03-05 09:43:30 +00:00
Søren Schmidt
b9bb98b32b Added driver to support ATAPI floppies ie LS-120 & ZIP drives.
Added "options ATA_STATIC_ID" that wires ATA disks like the old wd driver.

Fixed problems:

	Dont use more sectors/intr than the drive supports.
	Fix announce of > 8.4G disks.
	Dont call ad_interrupt/ad_transfer when no disks config'd.
	Use the right page# for CDR write mode params.
	Fix breakage when no PCI support in kernel.
	Implement DEVFS stuff.

General code clenaup.
1999-03-03 21:10:29 +00:00
Søren Schmidt
8b89ef0a2d Finally!!
The much roumored replacement for our current IDE/ATA/ATAPI is
materialising in the CVS repositories around the globe.

So what does this bring us:

A new reengineered ATA/ATAPI subsystem, that tries to overcome
most of the deficiencies with the current drivers.

It supports PCI as well as ISA devices without all the hackery
in ide_pci.c to make PCI devices look like ISA counterparts.

It doesn't have the excessive wait problem on probe, in fact you
shouldn't notice any delay when your devices are getting probed.

Probing and attaching of devices are postponed until interrupts
are enabled (well almost, not finished yet for disks), making
things alot cleaner.

Improved performance, although DMA support is still WIP and not
in this pre alpha release, worldstone is faster with the new
driver compared to the old even with DMA.

So what does it take away:

There is NO support for old MFM/RLL/ESDI disks.
There is NO support for bad144, if your disk is bad, ditch it, it has
already outgrown its internal spare sectors, and is dying.

For you to try this out, you will have to modify your kernel config
file to use the "ata" controller instead of all wdc? entries.

example:

# for a PCI only system (most modern machines)
controller 	ata0
device		atadisk0	# ATA disks
device		atapicd0	# ATAPI CDROM's
device		atapist0	# ATAPI tapes

#You should add the following on ISA systems:
controller	ata1	at isa? port "IO_WD1" bio irq 14
controller	ata2	at isa? port "IO_WD2" bio irq 15

You can leave it all in there, the system knows how to manage.

For now this driver reuses the device entries from the old system
(that will probably change later), but remember that disks are
now numbered in the sequence they are found (like the SCSI system)
not as absolute positions as the old system.

Although I have tested this on all the systems I can get my hands on,
there might very well be gremlins in there, so use AT YOU OWN RISK!!
This is still WIP, so there are lots of rough edges and unfinished
things in there, and what I have in my lab might look very different
from whats in CVS at any given time. So please have all eventual
changes go through me, or chances are they just dissapears...

I would very much like to hear from you, both good and bad news
are very welcome.

Enjoy!!

-Søren
1999-03-01 21:19:19 +00:00