Commit Graph

57 Commits

Author SHA1 Message Date
Scott Long
fc3e87b367 Don't provide a mutex in the S/G list dma tag since it will never be defered.
Fix some nearby style.
2003-08-09 23:07:21 +00:00
Scott Long
f6b1c44d1f Mega busdma API commit.
Add two new arguments to bus_dma_tag_create(): lockfunc and lockfuncarg.
Lockfunc allows a driver to provide a function for managing its locking
semantics while using busdma.  At the moment, this is used for the
asynchronous busdma_swi and callback mechanism.  Two lockfunc implementations
are provided: busdma_lock_mutex() performs standard mutex operations on the
mutex that is specified from lockfuncarg.  dftl_lock() is a panic
implementation and is defaulted to when NULL, NULL are passed to
bus_dma_tag_create().  The only time that NULL, NULL should ever be used is
when the driver ensures that bus_dmamap_load() will not be deferred.
Drivers that do not provide their own locking can pass
busdma_lock_mutex,&Giant args in order to preserve the former behaviour.

sparc64 and powerpc do not provide real busdma_swi functions, so this is
largely a noop on those platforms.  The busdma_swi on is64 is not properly
locked yet, so warnings will be emitted on this platform when busdma
callback deferrals happen.

If anyone gets panics or warnings from dflt_lock() being called, please
let me know right away.

Reviewed by:	tmm, gibbs
2003-07-01 15:52:06 +00:00
Poul-Henning Kamp
891619a66d Use bioq_flush() to drain a bio queue with a specific error code.
Retain the mistake of not updating the devstat API for now.

Spell bioq_disksort() consistently with the remaining bioq_*().

#include <geom/geom_disk.h> where this is more appropriate.
2003-04-01 15:06:26 +00:00
Poul-Henning Kamp
60794e0478 Centralize the devstat handling for all GEOM disk device drivers
in geom_disk.c.

As a side effect this makes a lot of #include <sys/devicestat.h>
lines not needed and some biofinish() calls can be reduced to
biodone() again.
2003-03-08 08:01:31 +00:00
Poul-Henning Kamp
7ac40f5f59 Gigacommit to improve device-driver source compatibility between
branches:

Initialize struct cdevsw using C99 sparse initializtion and remove
all initializations to default values.

This patch is automatically generated and has been tested by compiling
LINT with all the fields in struct cdevsw in reverse order on alpha,
sparc64 and i386.

Approved by:    re(scottl)
2003-03-03 12:15:54 +00:00
John Baldwin
fe6301c61c Chase the musical variable names.
Pointy hat to:	jhb
Reported by:	des
2003-02-25 22:48:33 +00:00
John Baldwin
e1159d10c0 Limit the maximum I/O size to 8 pages for version 2 controllers. This
fixes problems with some mlx(4) cards in Alpha machines.

Reviewed by:	msmith (ages ago)
2003-02-25 20:47:22 +00:00
John Baldwin
464e014eb9 Fix a small fat-finger: s/mlxd/mxld/.
Reported by:	Bob Willcox <bob@immure.com>
2003-02-25 20:35:56 +00:00
Poul-Henning Kamp
b2fe65c5be NO_GEOM cleanup:
Move to "struct disk*" centric API.
Retire major #131 (mlxd)
2003-02-25 07:35:41 +00:00
Poul-Henning Kamp
b82ff75854 NO_GEOM cleanup:
Change the argument to disk_destroy() to be the same struct disk * as
disk_create() takes.

This enables drivers to ignore the (now) bogus dev_t which disk_create()
returns.
2003-02-21 15:13:26 +00:00
Warner Losh
a163d034fa Back out M_* changes, per decision of the TRB.
Approved by: trb
2003-02-19 05:47:46 +00:00
Alfred Perlstein
44956c9863 Remove M_TRYWAIT/M_WAITOK/M_WAIT. Callers should use 0.
Merge M_NOWAIT/M_DONTWAIT into a single flag M_NOWAIT.
2003-01-21 08:56:16 +00:00
Alfred Perlstein
4f492bfab5 use __packed. 2002-09-23 18:54:32 +00:00
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
Poul-Henning Kamp
f90c382c0c Make FreeBSD "struct disklabel" agnostic, step 311 of 723:
Rename diskerr() to disk_err() for naming consistency.

Drop the by now entirely useless struct disklabel argument.

Add a flag argument for new-line termination.

Fix a couple of printf-format-casts to %j instead of %l.

Correctly print the name of all bio commands.

Move the function from subr_disklabel.c to subr_disk.c,
and from <sys/disklabel.h> to <sys/disk.h>.

Use the new disk_err() throughout, #include <sys/disk.h> as needed.

Bump __FreeBSD_version for the sake of the aac disk drivers #ifdefs.

Remove unused disklabel members of softc for aac, amr and mlx, which seem
to originally have been intended for diskerr() use, but which only rotted
and got Copy&Pasted at least two times to many.

Sponsored by:   DARPA & NAI Labs.
2002-09-20 12:52:03 +00:00
Bruce Evans
07e929da1c Fixed printf format errors in previous commit. %llu is no more suitable
than %u for printing signed 64-bit types.  It fails on different machines,
and has the wrong signdness.

Fixed old printf format error on the same line.  %u is not suitable for
printing 32-bit types on all machines.

"Fixed" format printf error in previous commit.  This file is not
formatted in KNF.  Partially restore bug for bug compatibility: indent
the printf args too much, but don't format them for 160-column terminals.
2002-03-18 23:38:16 +00:00
Warner Losh
8321855307 Formats that print the block number need to be changed from %u to
%llu due to recent changes in bio_pblkno's type.
2002-03-18 20:50:04 +00:00
David E. O'Brien
6e551fb628 Update to C99, s/__FUNCTION__/__func__/,
also don't use ANSI string concatenation.
2001-12-10 08:09:49 +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
Kris Kennaway
bf61e26696 Fix some signed/unsigned integer confusion, and add bounds checking of
arguments to some functions.

Obtained from:	NetBSD
Reviewed by:	peter
MFC after:	2 weeks
2001-09-10 11:28:07 +00:00
Mike Smith
15fd5d220f Driver modifications consistent with my other drivers to facilitate
the use of a single set of sources across 4.x and 5.x branches.

No significant code changes.
2001-06-25 04:32:31 +00:00
Peter Wemm
14aa34173c Fix warning: 193: warning: label `done' defined but not used 2001-06-15 00:13:54 +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
Mark Murray
ed34d0ade2 Turn on interrupt-entropy harvesting for all/any mass storage devices
I could find. I have no doubt missed a couple.

Interrupt entropy harvesting is still conditional on the
kern.random.sys.harvest_interrupt sysctl.
2001-03-01 17:09:09 +00:00
Matthew N. Dodd
9b11c7ba44 Avoid hardcoding the 'rid' and 'type' of the MEM/IOPORT resource.
Store the 'rid' and 'type' in the softc and use them in mlx.c:mlx_free().

EISA and MCA front ends will require this.

Approved by:	 msmith
2000-11-28 06:17:32 +00:00
David Malone
ca89ee278e Further use of M_ZERO.
Submitted by:	josh@zipperup.org
Submitted by:	Robert Drehmel <robd@gmx.net>
Approved by:	msmith
2000-11-18 15:21:22 +00:00
Mike Smith
e10f2ee576 Return -10 from the PCI probe to allow room for an updated driver to
override one built into the kernel.
2000-10-28 10:46:30 +00:00
Poul-Henning Kamp
db7e3af111 Remove unneeded #include <machine/clock.h> 2000-10-15 14:19:01 +00:00
Mike Smith
786cd128a8 Add support for 2.x/3.x firmware adapters which are too old to have a
memory-mapped register window.  This closes the last known issue with
2.x vintage adapters.
2000-08-04 06:52:00 +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
Mike Smith
baff09db2c Change the way that scatter/gather list tables are allocated so that we
can use all of the s/g entries available on smaller cards.  This is
necessary if we want to be able to handle a non-page-aligned 64k transfer
on 2.x and 3.x firmware.

Fix a missing splx() that may have left us at splbio() for longer than
desired.

Reduce shadowing of controller-supplied parameters a little.
2000-05-06 08:54:33 +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
Mike Smith
5d278f5cf3 One minor bugfix:
- Free resources in all the possible attachment failure cases.

One critical bugfix:

 - Fix a race where it was possible to get out of synch with the log
   messages from the controller, if the controller hung up for any
   period of time (eg. while resetting a SCSI bus).  This would result
   in an endless string of console errors, bringing the machine to a
   halt.
2000-04-20 23:52:33 +00:00
Poul-Henning Kamp
3389ae9350 Remove ~25 unneeded #include <sys/conf.h>
Remove ~60 unneeded #include <sys/malloc.h>
2000-04-19 14:58:28 +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
Mike Smith
421f2f7d74 Add features required for basic userland management utility:
- implement user-initiated background drive rebuild
 - implement user-initiated background consistency check
 - log controller-initiated background rebuild/check operations

Try to fix the elusive "invalid log operation" bug, and panic if we do
hit this one in the hopes of getting better information.

Tidy up diagnostic messages.

Try to use disk_create/disk_destroy correctly.  This isn't working
properly yet, but it's not clear whose fault that is.
2000-04-11 02:52:46 +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
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
Mike Smith
da8bb3a3bf Update to the latest development version of the Mylex driver. Changes in
this version include:

 - Support for version 2.x firmware (2.42 or later recommended).  This
   means we are the only open-source driver supporting these adapters.
   This code has only been tested on a Digital KZPCA adapter in an Alpha
   system, but is believed to be correct.  NOTE: EISA adapters are not
   yet supported.

 - Support the BIOS/Firmware initialisation handshake protocol.  This
   allows the driver to bring the card up to operational state even if
   the BIOS can't be run (eg. if it's an x86 BIOS in an Alpha system).

 - A working command pasthrough interface.  This allows a user-space
   configuration tool (under development) to issue arbitrary commands
   to the controller or to devices in the system.
2000-03-18 02:01:37 +00:00
Mike Smith
b9256fe34e Fix the firmware build number output (again). 1999-12-25 01:45:22 +00:00
Mike Smith
1a5bb1b602 Cosmetic fix; get the firmware build code and customisation tag the
right way around.

Submitted by:	"Chris D. Faulhaber" <jedgar@fxp.org>
1999-12-24 07:04:23 +00:00
Mike Smith
9eee27f16d Updates resulting from new documentation from Mylex and some cleaning:
- Don't keep private copies of some of the data fields from the
   ENQUIRY and ENQUIRY2 commands.  Instead, standardise on the ENQUIRY2
   command for initial adapter information, and keep a copy of the entire
   structure.  Refer to it where appropriate.

 - Move all of the controller description functionality into a new
   function.  Print lots more controller data if bootverbose is set.
   Add knowledge of the DAC960 PR, PT, PTL0 and PRL controllers, rename
   the 960PTL -> PTL0 and 1100P -> 1100PVX.

 - Correctly terminate an error message.

The controller interface procedures have been reviewed against the
Mylex-supplied documentation; no changes appear necessary at this
time.
1999-12-22 01:21:28 +00:00
Peter Wemm
72c10febd0 time_t is an int on the Alpha, not long. 1999-12-12 20:59:29 +00:00
Mike Smith
5792b7fe0b Major update to the Mylex DAC960 driver adding new hardware support
and fixing some major bugs.

 - Add support for the v5 firmware interface, used by the DAC1164P
   (tested) and AcceleRAID 352 (untested but should work).  We now cover
   all of the Mylex family's protocols except for v2 (used by EISA and
   Alpha-compatible cards).

 - Fix an accounting bug which resulted in endless 'poll still busy'
   messages.  In situations of high controller load the count of poll
   commands could be incremented without actually successfully launching
   a command.  This totally removes the accounting for status poll
   commnads; it was its own worst enemy.

 - Add some simple reentry prevention locks to processing of the waiting
   and completed command queues to prevent races which could result in
   I/O being done or completed twice (both are fatal).  This highlights
   a need for simple locking primitives in both the UP and SMP kernels.

 - Streamline the handling of command completion to reduce the amount of
   redundant work being done.  Remove the code which tests for commands
   that have gone missing in action; nobody has ever seen one of these
   and it wouldn't have worked properly anyhow.

 - Handle disconnection of drives from the controller in the detach,
   not shutdown method.  This avoids problems flushing the cache in
   a panic when a drive is mounted.

 - Don't call bus_generic_detach when disconnecting drives; it doesn't
   actually do anything useful.

 - Increment the log message index regardless of whether we actually
   retrieved one or not.  If we run into a message that we can't fetch,
   we don't want to spin endlessly complaining about the fact.

 - Don't assume that interrupts will work when we're flushing the
   controller.  We may think they are enabled, but in eg. a panic
   situation the controller may not be able to deliver an interrupt.
1999-12-11 00:00:13 +00:00
Kenneth D. Merry
86b2c8466d Revamp the devstat priority system. All disks now have the same priority.
The same goes for CD drivers and tape drivers.  In systems with mixed IDE
and SCSI, devices in the same priority class will be sorted in attach
order.

Also, the 'CCD' priority is now the 'ARRAY' priority, and a number of
drivers have been modified to use that priority.

This includes the necessary changes to all drivers, except the ATA drivers.
Soren will modify those separately.

This does not include and does not require any change in the devstat
version number, since no known userland applications use the priority
enumerations.

Reviewed by:	msmith, sos, phk, jlemon, mjacob, bde
1999-12-08 04:45:23 +00:00
Matthew N. Dodd
fe0d408987 Remove the 'ivars' arguement to device_add_child() and
device_add_child_ordered().  'ivars' may now be set using the
device_set_ivars() function.

This makes it easier for us to change how arbitrary data structures are
associated with a device_t.  Eventually we won't be modifying device_t
to add additional pointers for ivars, softc data etc.

Despite my best efforts I've probably forgotten something so let me know
if this breaks anything.  I've been running with this change for months
and its been quite involved actually isolating all the changes from
the rest of the local changes in my tree.

Reviewed by:	peter, dfr
1999-12-03 08:41:24 +00:00
Mike Smith
97adfbaf83 Correctly compute the block count. In reality, it seems that the
controller will never return the command if it's not exactly a multiple
of a block in size.

Cosmetic formatting for RAID level output.
1999-11-02 03:25:24 +00:00