Commit Graph

78 Commits

Author SHA1 Message Date
Poul-Henning Kamp
7812d86f03 (This commit touches about 15 disk device drivers in a very consistent
and predictable way, and I apologize if I have gotten it wrong anywhere,
getting prior review on a patch like this is not feasible, considering
the number of people involved and hardware availability etc.)

If struct disklabel is the messenger: kill the messenger.

Inside struct disk we had a struct disklabel which disk drivers used to
communicate certain metrics to the disklayer above (GEOM or the disk
mini-layer).  This commit changes this communication to use four
explicit fields instead.

Amongst the benefits is that the fields do not get overwritten by
wrong or bogus on-disk disklabels.

Once that is clear, <sys/disk.h> which is included in the drivers
no longer need to pull <sys/disklabel.h> and <sys/diskslice.h> in,
the few places that needs them, have gotten explicit #includes for
them.

The disklabel inside struct disk is now only for internal use in
the disk mini-layer, so instead of embedding it, we malloc it as
we need it.

This concludes (modulus any mistakes) the series of disklabel related
commits.

I belive it all amounts to a NOP for all the rest of you :-)

Sponsored by:   DARPA & NAI Labs.
2002-09-20 19:36:05 +00:00
Søren Schmidt
b3d86d9ca2 OK, dont rely on the upper layers handling iosize_max correctly,
instead rely on ATAPI devices ability to do the work instead.

MFC material.
2002-07-28 23:59:00 +00:00
Søren Schmidt
23a5f1b91a Properly change the block_size on different CD media, and use that
to calculate the max amount of data in one IO request.

Correct the max size on atapi floppies/tapes as well.
2002-07-27 12:22:39 +00:00
Søren Schmidt
aafa7ea069 Fix the max transfer size for ATAPI devices. The spec says to
transfer at most 65534 bytes, thats 126 times DEV_BSIZE not 252 :(

Pointed out by: Ian Dowse <iedowse@maths.tcd.ie>
2002-07-26 19:13:05 +00:00
Søren Schmidt
ba41a3d37e Fix the transfer size calculation. 2002-07-22 18:37:33 +00:00
Søren Schmidt
9153cecd64 Use si_iosize_max to tell the upper layers not to use more
than 32K chunks on ZIP drives instead of deblocking it in
the driver.
2002-06-19 12:41:05 +00:00
Bruce Evans
e788f79698 Fixed printf format errors which apparently crept in while -Wformat was
disabled for gcc-3.
2002-05-25 11:18:03 +00:00
Søren Schmidt
7800211b08 Make the ATA driver compile & work on the sparc64 platform.
Initial work & code by tmm.

Lots of changes and rearrangements by yours truely to make busdma
be a little less a PITA (but I still dont like it).
2002-04-05 13:13:56 +00:00
Søren Schmidt
d42c4a3ba6 Misc little cleanups. 2002-03-26 09:31:22 +00:00
Søren Schmidt
fe86c44885 Add new support for locking an ATA channel and use that throughout
the ATA/ATAPI driver. This solves the concurrency problem with
the new GEOM code, and also cuts a good deal of the patch size
in the upcoming MFC.
2002-03-11 21:04:32 +00:00
Søren Schmidt
6ddce9039b Major update of the ATA RAID code, part 1:
Overhaul of the attach/detach code and structures, there were some nasty
bugs in the old implementation. This made it possible to collapse the
ATA/ATAPI device control structures into one generic structure.

A note here, the kernel is NOT ready for detach of active devices,
it fails all over in random places, but for inactive devices it works.
However for ATA RAID this works, since the RAID abstration layer
insulates the buggy^H^H^H^H^H^Hfragile device subsystem from the
physical disks.

Proberly detect the RAID's from the BIOS, and mark critical RAID1
arrays as such, but continue if there is enough of the mirror left
to do so.

Properly fail arrays on a live system. For RAID0 that means return EIO,
and for RAID1 it means continue on the still working part of the mirror
if possible, else return EIO.
If the state changes, log this to the console.

Allow for Promise & Highpoint controllers/arrays to coexist on the
same machine. It is not possible to distribute arrays over different
makes of controllers though.

If Promise SuperSwap enclosures are used, signal disk state on the
status LED on the front.

Misc fixes that I had lying around for various minor bugs.

Sponsored by: Advanis Inc.
2002-02-04 19:23:40 +00:00
Søren Schmidt
f601b4eb7c Overhaul to minimize stack usage, in some places >2K was used
on the stack *blush*...
2001-09-20 15:25:36 +00:00
Julian Elischer
b40ce4165d KSE Milestone 2
Note ALL MODULES MUST BE RECOMPILED
make the kernel aware that there are smaller units of scheduling than the
process. (but only allow one thread per process at this time).
This is functionally equivalent to teh previousl -current except
that there is a thread associated with each process.

Sorry john! (your next MFC will be a doosie!)

Reviewed by: peter@freebsd.org, dillon@freebsd.org

X-MFC after:    ha ha ha ha
2001-09-12 08:38:13 +00:00
Poul-Henning Kamp
079f2df393 Make the disk mini-layer check for and handle zero-length transfers
instead of the underlying drivers.
2001-05-06 21:55:22 +00:00
Poul-Henning Kamp
a468031ce8 Actually biofinish(struct bio *, struct devstat *, int error) is more general
than the bioerror().

Most of this patch is generated by scripts.
2001-05-06 20:00:03 +00:00
Poul-Henning Kamp
f83880518b Send the remains (such as I have located) of "block major numbers" to
the bit-bucket.
2001-03-26 12:41:29 +00:00
Søren Schmidt
256d331f31 Set the device names as early as possible. 2001-03-21 11:49:07 +00:00
Søren Schmidt
a2dca80a1d Provide the interface to atacontrol and associated logic.
see atacontrol(8) for more.

Also the ATA_ENABLE_ATAPI_DMA, ATA_ENABLE_WC and ATA_ENABLE_TAGS
options are gone, use the tuneables listed in ata.4 instead from
the loader (this makes it possible to switch off DMA before the
driver has to touch the devices on broken hardware).
2001-03-15 15:36:25 +00:00
Søren Schmidt
8fab4242e4 Add support for the IOMEGA Clik!
IOMEGA deserves a medal for making the most nonstandard ATAPI
devices, if they are ignorant or just not smart enough I don't
know, but somebody should help them out of their misery...
2001-03-14 12:12:46 +00:00
Søren Schmidt
8ea3ce2aac Refine the detach/attach code.
Proberly fail outstanding bio requests on devices that are detached.

This makes it possible to change between disk/cdrom/dvd/whathaveyou
in a notebook, just by suspending it, changing the device in the
bay (or what you model calls it), unsuspend and the ATA driver
will figure out what disappeared and properly fail those, and attach
any new devices found.
2001-03-14 12:05:44 +00:00
Søren Schmidt
e0db7375ba Cosmetic change to the probe printf's 2001-03-06 09:42:46 +00:00
Søren Schmidt
95eaffae1b Add session argument to *close_disk, allowing to set session type on fixate.
Add support for different blank/erase types.

Update headers.
2001-01-10 19:19:47 +00:00
Søren Schmidt
6cf4911dd6 Use M_ZERO flag on malloc when approbiate. 2000-12-26 12:05:49 +00:00
Poul-Henning Kamp
959b7375ed Staticize some malloc M_ instances. 2000-12-08 20:09:00 +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
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
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
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
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
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
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
924f6734a5 Cosmetics.. 2000-03-10 22:10:34 +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
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
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
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
eff43d0e8a cosmetic changes only. 2000-01-29 14:10:59 +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
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
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
af86437301 Guard against transfers of zero length given to *strategy. 2000-01-07 12:01:01 +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