Commit Graph

25 Commits

Author SHA1 Message Date
marius
17e14c6132 - There's no need to overwrite the default device method with the default
one. Interestingly, these are actually the default for quite some time
  (bus_generic_driver_added(9) since r52045 and bus_generic_print_child(9)
  since r52045) but even recently added device drivers do this unnecessarily.
  Discussed with: jhb, marcel
- While at it, use DEVMETHOD_END.
  Discussed with: jhb
- Also while at it, use __FBSDID.
2011-11-22 21:28:20 +00:00
csjp
aa6ed9f702 Add missing parenthesis around error handling code upon attaching
mlx devices. This fixes an issue where mlx device drives fail to be
detected at system boot.

This is a RELENG_6 candidate.

Submitted by:	oliver
PR:		kern/84163
2005-07-30 15:53:40 +00:00
nyan
0fce92f5c4 Remove bus_{mem,p}io.h and related code for a micro-optimization on i386
and amd64.  The optimization is a trivial on recent machines.

Reviewed by:	-arch (imp, marcel, dfr)
2005-05-29 04:42:30 +00:00
phk
8be33e38e5 Don't call mlx_free() i mlx_attach() in case of failure. Doing so
in mlx_attach_pci() is much cleaner.

Inspired by:	Coverity
2005-03-26 21:58:09 +00:00
das
c1de26c2a0 If mlx_attach() returns an error, don't free sc again.
Spotted by:	Ted Unangst using the Coverity Prevent static analysis tool
Reviewed by:	scottl
2005-03-18 05:43:37 +00:00
imp
01223e02a3 Use BUS_PROBE_DEFAULT for pci probe return value 2005-03-05 18:10:49 +00:00
phk
9d102d7d5a Add missing <sys/module.h> includes 2004-05-30 20:08:47 +00:00
njl
05a1f56fc9 Convert callers to the new bus_alloc_resource_any(9) API.
Submitted by:	Mark Santcroos <marks@ripe.net>
Reviewed by:	imp, dfr, bde
2004-03-17 17:50:55 +00:00
obrien
c63dab466c Use __FBSDID().
Also some minor style cleanups.
2003-08-24 17:55:58 +00:00
imp
f13e5622e8 Prefer new location of pci include files (which have only been in the
tree for two or more years now), except in a few places where there's
code to be compatible with older versions of FreeBSD.
2003-08-22 06:42:59 +00:00
scottl
4d495abb9d 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
phk
c235e25328 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
phk
e01fc931cf 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
msmith
eb1ff0cc22 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
mdodd
67b4379f04 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
msmith
6f69682320 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
msmith
a4b7e97951 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
msmith
9cfdfa9434 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
phk
36c3965ff9 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
phk
6be1308ad1 Remove ~25 unneeded #include <sys/conf.h>
Remove ~60 unneeded #include <sys/malloc.h>
2000-04-19 14:58:28 +00:00
msmith
ef7f889e6b 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
msmith
7f4d10be2c 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
msmith
65bd95f881 Move some hardware-related items to the hardware-related header.
Shift to using the same queueing strategy that the amr driver uses.
Some simple tests indicate that we use about 2% of the CPU at around
500tps with the controller completely saturated with I/O.
1999-10-26 23:20:43 +00:00
msmith
23b1a2234e Add support for the version 4 firmware interface and the DAC960 PG and
PJ cards.  This will probably also support the AcceleRAID and
eXtremeRAID cards, but nobody has volunteered one for testing, so I
haven't enabled their PCI device IDs.

Slightly clean up communication between the disk devices and the
controller device as per new practice, and move some more register-
related items int mlxreg.h from mlxvar.h.

Remove some unnecessary read-modify-write operations to the card
control registers; they don't behave like that.

Increase the status polling interval to 10 seconds.  It's still possible
to load the card up to the point where a status poll will find the
previous poll still running, but this will reduce the incidence of
complaints.
1999-10-14 02:54:06 +00:00
msmith
685ad45645 This is a driver for the Mylex DAC960 family of integrated RAID
controllers.  It currently supports the P, PL, PD and PU variants,
with more to be supported shortly.
1999-10-07 02:20:32 +00:00