Commit Graph

54 Commits

Author SHA1 Message Date
Pedro F. Giffuni
718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00
Pedro F. Giffuni
453130d9bf sys/dev: minor spelling fixes.
Most affect comments, very few have user-visible effects.
2016-05-03 03:41:25 +00:00
John Baldwin
352176c8cb - Use the existing driver lock in cdevsw methods and remove D_NEEDGIANT.
- Use callout(9) instead of timeout(9).
- Use bus_*() instead of bus_space_*().
- Don't check for a NULL softc in attach.

Tested by:	no one
2014-11-13 22:06:57 +00:00
Scott Long
c68534f1d5 Update PCI drivers to no longer look at the MEMIO-enabled bit in the PCI
command register.  The lazy BAR allocation code in FreeBSD sometimes
disables this bit when it detects a range conflict, and will re-enable
it on demand when a driver allocates the BAR.  Thus, the bit is no longer
a reliable indication of capability, and should not be checked.  This
results in the elimination of a lot of code from drivers, and also gives
the opportunity to simplify a lot of drivers to use a helper API to set
the busmaster enable bit.

This changes fixes some recent reports of disk controllers and their
associated drives/enclosures disappearing during boot.

Submitted by:	jhb
Reviewed by:	jfv, marius, achadd, achim
MFC after:	1 day
2013-08-12 23:30:01 +00:00
Hiren Panchasara
76fe16bb78 Improving r249461 by providing a better way to handle the clang warning.
PR:		kern/177164
Reviewed by:	jhb
Approved by:	sbruno (mentor)
2013-04-17 21:21:27 +00:00
Hiren Panchasara
0fcdd1b528 Fixing a clang warning indicating uninitialized variable usage.
PR:	kern/177164
Approved by:	sbruno (mentor)
2013-04-14 02:42:40 +00:00
Scott Long
b6f97155cc Convert a number of drivers to obtaining their parent DMA tag from their
PCI device attachment.
2012-03-12 08:03:51 +00:00
Matt Jacob
ab429a9218 Fix argument order in a call to mtx_init.
MFC after:	1 week
2009-12-17 00:21:12 +00:00
Christian Brueffer
022ad82222 Check pointer for NULL before dereferencing it, not after.
PR:		138384
Submitted by:	Patroklos Argyroudis <argp@census-labs.com>
MFC after:	1 week
2009-10-21 15:04:50 +00:00
John Baldwin
a56fe095f0 Temporarily revert the new-bus locking for 8.0 release. It will be
reintroduced after HEAD is reopened for commits by re@.

Approved by:	re (kib), attilio
2009-08-20 19:17:53 +00:00
Attilio Rao
444b91868b Make the newbus subsystem Giant free by adding the new newbus sxlock.
The newbus lock is responsible for protecting newbus internIal structures,
device states and devclass flags. It is necessary to hold it when all
such datas are accessed. For the other operations, softc locking should
ensure enough protection to avoid races.

Newbus lock is automatically held when virtual operations on the device
and bus are invoked when loading the driver or when the suspend/resume
take place. For other 'spourious' operations trying to access/modify
the newbus topology, newbus lock needs to be automatically acquired and
dropped.

For the moment Giant is also acquired in some key point (modules subsystem)
in order to avoid problems before the 8.0 release as module handlers could
make assumptions about it. This Giant locking should go just after
the release happens.

Please keep in mind that the public interface can be expanded in order
to provide more support, if there are really necessities at some point
and also some bugs could arise as long as the patch needs a bit of
further testing.

Bump __FreeBSD_version in order to reflect the newbus lock introduction.

Reviewed by:    ed, hps, jhb, imp, mav, scottl
No answer by:   ariff, thompsa, yongari
Tested by:      pho,
                G. Trematerra <giovanni dot trematerra at gmail dot com>,
                Brandon Gooch <jamesbrandongooch at gmail dot com>
Sponsored by:   Yahoo! Incorporated
Approved by:	re (ksmith)
2009-08-02 14:28:40 +00:00
Paolo Pisati
ef544f6312 o break newbus api: add a new argument of type driver_filter_t to
bus_setup_intr()

o add an int return code to all fast handlers

o retire INTR_FAST/IH_FAST

For more info: http://docs.freebsd.org/cgi/getmsg.cgi?fetch=465712+0+current/freebsd-current

Reviewed by: many
Approved by: re@
2007-02-23 12:19:07 +00:00
Maxim Konovalov
bd4fb874ac o Add Adaptec ServeRAID 7x IDs. IDs taken from Linux.
PR:		kern/90012
Submitted by:	Andrey V. Elsukov
MFC after:	1 month
2006-10-05 07:28:43 +00:00
Warner Losh
1a3c917f9d while (0); -> while (0) in multi-line macros 2006-08-17 22:50:33 +00:00
Poul-Henning Kamp
c40da00ca3 Since DELAY() was moved, most <machine/clock.h> #includes have been
unnecessary.
2006-05-16 14:37:58 +00:00
Scott Long
8a436e7554 Shuffle some definitions so that this can be included from userland. 2006-01-03 23:03:39 +00:00
Scott Long
df67b5c133 Add some more data structures and definitions for communicating with the
ServeRAID firmware.
2006-01-03 23:03:15 +00:00
Scott Long
f94dfeb481 Separate the hardware definitions into ipsreg.h so they can be used by
future userland tools.
2005-11-29 09:39:41 +00:00
Gleb Smirnoff
5cd88eb04a Fix build. 2005-09-27 09:11:44 +00:00
Scott Long
722e0ae489 Report status in hex, not decimal. 2005-09-27 01:59:32 +00:00
Scott Long
2eea70515c Overhaul error handling in the IPS driver. Don't use a magic value for
driver-induced errors, instead be better about propagating error status
upwards.  Add more error definitions, courtesy of the linux driver.  Fix
a command leak in the ioctl handler.  Re-arrange some of the command handlers
to localize error handling.

MFC After: 3 days
2005-09-25 17:12:41 +00:00
Yoshihiro Takahashi
d4fcf3cba5 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
Scott Long
4ef63bad69 Remove an extra mutex unlock in the morpheus interrupt handler.
PR: 80246
Submitted by: Dean Strik
MFC After: 3 days
2005-04-26 13:38:29 +00:00
Warner Losh
b77e575e1d Use BUS_PROBE_DEFAULT for pci probe return value 2005-03-05 18:17:35 +00:00
Scott Long
7765040ebc Add crashdump support to the ips driver. It only works for the more modern
ServeRAID 4 - 7 models right now.  Support for older cards is possible, but
I don't have any hardware to experiment with.

Thanks to Jack Hammer at Adaptec for providing debugging hints.

Sponsored by: ImproWare AG, Switzerland
2005-01-30 17:45:45 +00:00
Scott Long
c11c59dc42 Remove all of the spl() markers. 2005-01-28 05:37:51 +00:00
Scott Long
03a908f2ce Lock the IPS driver and bring it out from under Giant. Also do some
significant clean up and optimizations:
- don't call bioq_disksort() on every command, the hardware will do that for
  us.
- remove all of the complicated bio deferral code.  bio's that can't be
  serviced immediately can just wait on the bioq.
- Only reserve one command object for doing control commands to the card.
  This simplifies a lot of code and significantly reduces the size of the
  command struct.
- Allocate commands out of a slab instead of embedding them into the softc.
- Call the command action method directly instead of having ips_get_free_cmd()
  call it indirectly.

MFC After: 1 week
2005-01-28 05:02:13 +00:00
Poul-Henning Kamp
89c9c53da0 Do the dreaded s/dev_t/struct cdev */
Bump __FreeBSD_version accordingly.
2004-06-16 09:47:26 +00:00
John Polstra
4717d22a7c Change the return value of sema_timedwait() so it returns 0 on
success and a proper errno value on failure.  This makes it
consistent with cv_timedwait(), and paves the way for the
introduction of functions such as sema_timedwait_sig() which can
fail in multiple ways.

Bump __FreeBSD_version and add a note to UPDATING.

Approved by:	scottl (ips driver), arch
2004-06-14 18:19:05 +00:00
Poul-Henning Kamp
fe12f24bb0 Add missing <sys/module.h> includes 2004-05-30 20:08:47 +00:00
Scott Long
dd83a01e81 Use a unique malloc type rather than M_DEVBUF. 2004-05-30 04:01:29 +00:00
Scott Long
dd851ecc32 Fix typo in the device id for the new cards. 2004-03-27 15:56:34 +00:00
Scott Long
33ad16c0f1 Add generic support for the recent Adaptec flavors of ServeRAID. 2004-03-19 17:36:47 +00:00
Nate Lawson
5f96beb9e0 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
Scott Long
b234a120c8 Switch from using mutexes to using semaphores to protect against early
completion of synchronous commands.  Also switch to a per-array bioq as it
appears to improve performance.

Submitted by:	mbr, imp.ch (bioq change)
2004-02-28 19:14:41 +00:00
Poul-Henning Kamp
dc08ffec87 Device megapatch 4/6:
Introduce d_version field in struct cdevsw, this must always be
initialized to D_VERSION.

Flip sense of D_NOGIANT flag to D_NEEDGIANT, this involves removing
four D_NOGIANT flags and adding 145 D_NEEDGIANT flags.
2004-02-21 21:10:55 +00:00
Poul-Henning Kamp
0b7ed341e1 Change the disk(9) API in order to make device removal more robust.
Previously the "struct disk" were owned by the device driver and this
gave us problems when the device disappared and the users of that device
were not immediately disappearing.

Now the struct disk is allocate with a new call, disk_alloc() and owned
by geom_disk and just abandonned by the device driver when disk_create()
is called.

Unfortunately, this results in a ton of "s/\./->/" changes to device
drivers.

Since I'm doing the sweep anyway, a couple of other API improvements
have been carried out at the same time:

The Giant awareness flag has been flipped from DISKFLAG_NOGIANT to
DISKFLAG_NEEDSGIANT

A version number have been added to disk_create() so that we can detect,
report and ignore binary drivers with old ABI in the future.

Manual page update to follow shortly.
2004-02-18 21:36:53 +00:00
Scott Long
a7c4d6e18c Remove the static major assignment for ips(4).
Submitted by:	phk, inspired by others.
2004-02-14 23:11:03 +00:00
Poul-Henning Kamp
f8f3930958 Use same style for cdevsw as the rest of our drivers. 2004-02-14 19:58:05 +00:00
Ruslan Ermilov
7287c40c0d Fixed a memory leak.
Reported by:	Stanford Metacompilation research group
Reviewed by:	scottl
2004-01-18 17:34:11 +00:00
Martin Blapp
aa8689ef95 The reset_type should not be 0x80, it should be set to zero.
0x80 can cause the command to be rejected as invalid. This bug
exists also in the Linux IPS ffdc code.

Submitted by:	David Jeffery
MFC after:	1 week
2004-01-01 10:22:10 +00:00
Martin Blapp
7633e7f1a2 ServeRaid (at least 5i) didn't initialize correctly. To get
them working (cache, automatic rebuild and hotswap) the FFDC
info (First Failure Data Capture) on the adapter must be
initialised.

Logical drives in critical/degraded states weren't added to
the drive list. FreeBSD was not able to see a degraded array
after a reboot. Degraded drives are now also added to the drivelist
and the state of the logical drive is given at boottime.

The adapter type is detected from informations in nvram page 5
and displayed at boottime.

Change IPS_OS_FREEBSD definition from 10 to 8 according to IBM
specs.

Submitted by:   <Patrick Guelat> pgfb@imp.ch
Reviewed by:    mbr, scottl
Approved by:    re
2003-11-27 08:37:36 +00:00
Poul-Henning Kamp
0eac610fd7 Eliminate reporting of bio_blkno. 2003-10-18 17:28:36 +00:00
Nate Lawson
0588717032 Add an off_t cast to prevent overflow on media size. This should
fix issues with geometry not matching drive size.

Submitted by:	Clive Lin <clive@tongi.org>
2003-09-22 04:59:07 +00:00
Paul Saab
faf13262a4 Delay most of the adapter initilization until after interrupts are
enabled.

Tested by:	Richard Puga <puga@mauibuilt.com>
2003-09-11 23:30:28 +00:00
John Baldwin
e27951b29c Use PCIR_BAR(x) instead of PCIR_MAPS.
Glanced over by:	imp, gibbs
Tested by:		i386 LINT
2003-09-02 17:30:40 +00:00
David E. O'Brien
aad970f1fe Use __FBSDID().
Also some minor style cleanups.
2003-08-24 17:55:58 +00:00
Warner Losh
77e6a3b2dd 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 06:00:27 +00:00
John Baldwin
8a9bc9c03b - Use the new resource_disabled() helper function to see if devices are
disabled.
- Change the apm driver to match the acpi driver's behavior by checking to
  see if the device is disabled in the identify routine instead of in the
  probe routine.  This way if the device is disabled it is never created.

Note that a few places (ips(4), Alpha SMP) used "disable" instead of
"disabled" for their hint names, and these hints must be changed to
"disabled".  If this is a big problem, resource_disabled() can always be
changed to honor both names.
2003-07-02 16:09:02 +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