Commit graph

20726 commits

Author SHA1 Message Date
James Bottomley
1fa44ecad2 [SCSI] add execute_in_process_context() API
We have several points in the SCSI stack (primarily for our device
functions) where we need to guarantee process context, but (given the
place where the last reference was released) we cannot guarantee this.

This API gets around the issue by executing the function directly if
the caller has process context, but scheduling a workqueue to execute
in process context if the caller doesn't have it.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 23:34:40 -06:00
Mike Christie
ba3af0aff0 [SCSI] don't call ips_eh_reset in ips_queue to avoid deadlock
When the locking was changed in the eh code ips_eh_reset was changed
so that it was a wraper around __ips_eh_reset and all ips_eh_reset
does is grab the host lock and then calls __ips_eh_reset.

In the queuecommand, ips_queue is called with the host_lock held so if
it calls ips_eh_reset we will have a problem. This patch just has
ips_queue call __ips_eh_reset.

Patch is only compile tested. I do not have the HW.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Acked-by: Hammer, Jack <Jack_Hammer@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 23:32:39 -06:00
Al Viro
6d73c8514d [SCSI] scsi_lib: fix recognition of cache type of Initio SBP-2 bridges
Regardless what mode page was asked for, Initio INIC-14x0 and
INIC-2430 always return page 6 without mode page headers.  Try to
recognise this as a special case in scsi_mode_sense and setting the
mode sense headers accordingly.

Signed-off-by: Al Viro <viro@ftp.linux.org.uk>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 23:31:07 -06:00
Matthew Wilcox
fc25307d06 [SCSI] Improve message printing code
Fix a bug where we would consume one byte too many in the message
printing code.
Add support for 256-byte long messages.
Add support for the Modify Bidirectional Data Pointer message.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 23:26:56 -06:00
Alan Stern
1bfc5d9d5e [SCSI] Recognize missing LUNs for non-standard devices
Some non-standard SCSI targets or protocols, such as USB UFI, report "no
LUN present" by setting the Peripheral Device Type to 0x1f and the
Peripheral Qualifier to 0 (not 3 as the standard requires) in the INQUIRY
response.  This patch (as650b) adds a new target flag and code to
accomodate such targets.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 23:24:09 -06:00
Christoph Hellwig
8cac814501 [SCSI] aic7xxx: semaphore to completion conversion
On Tue, Jan 31, 2006 at 06:20:18PM +0100, Christoph Hellwig wrote:
> switch eh_sem to a completion.  due to wait_for_completion_timeout this
> also nicely simplifies the code.  Unfortunately it's untested, so if
> someone with the hardware could give it a try that would be nice.  Once
> it works the same thing can be applied to aic79xx.

New version that switches to the common onstack completion and just a
pointer in the platform_data struct idiom.  This gets rid of all the
flags fiddling.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 23:08:37 -06:00
Christoph Hellwig
fe27381d16 [SCSI] aacraid: use kthread_ API
Use the kthread_ API instead of opencoding lots of hairy code for kernel
thread creation and teardown.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Salyzyn, Mark <mark_salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:14 -06:00
James Bottomley
38e14f895b [SCSI] Add EXPORT_SYMBOL for spi msg functions
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:13 -06:00
Christoph Hellwig
a012564136 [SCSI] sas: add support for enclosure and bad ID rphy attributes
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:13 -06:00
Christoph Hellwig
e3094447e0 [SCSI] mptsas: add support for enclosure and bay identifier attributes
Adds support to retrieve the enclosure and bay identifiers.  This patch
is from Eric with minor modifications from me, rewritten from a buggy
patch of mine, based on the earlier CSMI implementation from Eric..

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:12 -06:00
Ralf Baechle
ae198df377 [SCSI] jazz_esp: Fix sparse warnings.
Using plain integer as NULL pointer.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:11 -06:00
Ralf Baechle
0320503dce [SCSI] jazz_esp: Delete useless prototype
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:11 -06:00
Matthew Wilcox
e24d873d25 [SCSI] Make spi_print_msg more consistent
Almost all the output from spi_print_msg() has a trailing space.
This patch fixes up the three cases that don't.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:10 -06:00
Matthew Wilcox
6ea3c0b2da [SCSI] Add spi_populate_*_msg functions
Introduce new helpers:
 - spi_populate_width_msg()
 - spi_populate_sync_msg()
 - spi_populate_ppr_msg()

and use them in drivers which already enable the SPI transport.

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:09 -06:00
Matthew Wilcox
b0dc1db152 [SCSI] ncr53c8xx update
Delete unused NAME53C definition
Remove use of the M_* constants; use the common SCSI constants instead
Translate some remaining German
Add a missing changelog entry

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:08 -06:00
Matthew Wilcox
ea697e456a [SCSI] unused show_spi_transport_period_helper parameter
show_spi_transport_period_helper() doesn't need the class_device parameter

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:07 -06:00
Matthew Wilcox
a97a83a06b [SCSI] fix uninitialized variable error
in __scsi_add_device, sdev may be uninitialised if
scsi_host_scan_allowed() returns false.  Fix by initialising at the
top of the routine.  Also rely on the fact that
scsi_probe_and_add_lun() only actually fills in the sdev pointer if
the SCSI_SCAN_LUN_PRESENT case (so no need to check the return value).

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:07 -06:00
Andrew Morton
1acc0b0ba4 [SCSI] cciss: kfree(NULL) is legal
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:06 -06:00
Adrian Bunk
03fbcbcd57 [SCSI] drivers/message/fusion/mptfc.c: make 2 functions static
This patch makes two needlessly global functions static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:06 -06:00
Linas Vepstas
f8a88b19b9 [SCSI] PCI Error Recovery: IPR SCSI device driver
Various PCI bus errors can be signaled by newer PCI controllers.  This
patch adds the PCI error recovery callbacks to the IPR SCSI device driver.
The patch has been tested, and appears to work well.

Signed-off-by: Linas Vepstas <linas@linas.org>
Signed-off-by: Brian King <brking@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:05 -06:00
Moore, Eric
4f8d98abaf [SCSI] fusion - mptlan - remove wierd humor print
Removes wierd humor, and bad language printk in mptlan.

Signed-off-by: Eric Moore <Eric.Moore@lsil.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:04 -06:00
Greg KH
5e3c34c1e9 [SCSI] Remove devfs support from the SCSI subsystem
As devfs has been disabled from the kernel tree for a number of months
now (5 to be exact), here's a patch against 2.6.16-rc1-git1 that removes
support for it from the SCSI subsystem.

The patch also removes the scsi_disk devfs_name field as it's no longer
needed.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:04 -06:00
Matthew Wilcox
c67a848c35 [SCSI] Neaten comments in scsi_cmnd.h
Wrap these two comments at 80 columns

Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:02 -06:00
Jes Sorensen
24669f75a3 [SCSI] SCSI core kmalloc2kzalloc
Change the core SCSI code to use kzalloc rather than kmalloc+memset
where possible.

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
2006-02-27 22:55:02 -06:00
Linus Torvalds
b9a33cebac Linux v2.6.16-rc5 2006-02-26 21:09:35 -08:00
Linus Torvalds
13f939b5d3 Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6 2006-02-26 20:27:11 -08:00
Linus Torvalds
add2b6fdae Make Kprobes depend on modules
Commit 9ec4b1f356 made kprobes not compile
without module support, so just make that clear in the Kconfig file.

Also, since it's marked EXPERIMENTAL, make that dependency explicit too.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-26 20:24:40 -08:00
David S. Miller
7abea92145 [SPARC64]: Make cpu_present_map available earlier.
The change to kernel/sched.c's init code to use for_each_cpu()
requires that the cpu_possible_map be setup much earlier.

Set it up via setup_arch(), constrained to NR_CPUS, and later
constrain it to max_cpus in smp_prepare_cpus().

This fixes SMP booting on sparc64.

Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-26 19:36:00 -08:00
David S. Miller
043df59eb3 [SPARC64]: Implement futex_atomic_op_inuser().
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-02-26 19:35:58 -08:00
James Bottomley
e18f9b4be4 [PATCH] fix voyager after topology.c move
Commit 9c869edac5 broke voyager again
rather subtly because it already had its own topology exporting
functions, so now each CPU gets registered twice.

I think we can actually use the generic ones, so I don't propose
reverting it.  The attached should eliminate the voyager topology
functions in favour of the generic ones.

I also added a define to ensure voyager is never hotplug CPU (we don't
have the support in the SMP harness).

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-26 19:10:30 -08:00
Brian Magnuson
d51761233d [PATCH] fix build on x86_64 with !CONFIG_HOTPLUG_CPU
The commit e2c0388866 added
setup_additional_cpus to setup.c but this is only defined if
CONFIG_HOTPLUG_CPU is set.  This patch changes the #ifdef to reflect that.

Signed-off-by: Brian Magnuson <magnuson@rcn.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-26 19:07:42 -08:00
Andi Kleen
fc5870f662 [PATCH] x86_64: Fix ioctl compat code for /dev/rtc
RTC_IRQP_SET/RTC_EPOCH_SET don't take a pointer to an argument, but the
argument itself.  This actually simplifies the code and makes it work.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-26 09:53:31 -08:00
Andi Kleen
ab9b32ee62 [PATCH] x86_64: Better ATI timer fix
The previous experiment for using apicmaintimer on ATI systems didn't
work out very well.  In particular laptops with C2/C3 support often
don't let it tick during idle, which makes it useless.  There were also
some other bugs that made the apicmaintimer often not used at all.

I tried some other experiments - running timer over RTC and some other
things but they didn't really work well neither.

I rechecked the specs now and it turns out this simple change is
actually enough to avoid the double ticks on the ATI systems.  We just
turn off IRQ 0 in the 8254 and only route it directly using the IO-APIC.

I tested it on a few ATI systems and it worked there.  In fact it worked
on all chipsets (NVidia, Intel, AMD, ATI) I tried it on.

According to the ACPI spec routing should always work through the
IO-APIC so I think it's the correct thing to do anyways (and most of the
old gunk in check_timer should be thrown away for x86-64).

But for 2.6.16 it's best to do a fairly minimal change:
 - Use the known to be working everywhere-but-ATI IRQ0 both over 8254
   and IO-APIC setup everywhere
 - Except on ATI disable IRQ0 in the 8254
 - Remove the code to select apicmaintimer on ATI chipsets
 - Add some boot options to allow to override this (just paranoia)

In 2.6.17 I hope to switch the default over to this for everybody.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-26 09:53:31 -08:00
Andi Kleen
e8b917775b [PATCH] x86_64: Move the SMP time selection earlier
SMP time selection originally ran after all CPUs were brought up because
it needed to know the number of CPUs to decide if it needs an MP safe
timer or not.

This is not needed anymore because we know present CPUs early.

This fixes a couple of problems:
 - apicmaintimer didn't always work because it relied on state that was
   set up time_init_gtod too late.
 - The output for the used timer in early kernel log was misleading
   because time_init_gtod could actually change it later.  Now always
   print the final timer choice

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-26 09:53:31 -08:00
Andi Kleen
e2c0388866 [PATCH] x86_64: Fix the additional_cpus=.. option
It didn't set up the CPU possible map early enough, so the
option didn't actually work.

Noticed by Heiko Carstens

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-26 09:53:30 -08:00
Andi Kleen
2eb1bdbad8 [PATCH] x86_64: Disable ACPI blacklist by year for now on x86-64
ACPI is initialized very early on x86-64, before the DMI code is
initialized.  This means it would often discover a 0 year and then turn
off ACPI because it thought the BIOS was too old.  Some systems don't
boot without ACPI so this was a problem.

I have a full fix by adding new very early DMI detection, but it needs
more testing before it can be merged.  For 2.6.16 let's just turn the
check off.  It never made much sense anyways because there are no x86-64
systems older than 2002 or so and they generally all have working ACPI.

Cc: len.brown@intel.com

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-26 09:53:30 -08:00
Chris McDermott
1f99215392 [PATCH] x86_64: Fix NMI watchdog on x460
[description from AK]

Old check for the IO-APIC watchdog during the timer check was wrong -
it obviously should only drop into this if the IO-APIC watchdog is used.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-26 09:53:30 -08:00
Andi Kleen
e78256b8f3 [PATCH] x86-64/i386: Use common X86_PM_TIMER option and make it EMBEDDED
This makes x86-64 use the common X86_PM_TIMER Kconfig entry in drivers/acpi

And since PM timer is needed for correct timing on a lot of systems
now (e.g. AMD dual cores) and we often get bug reports from people
who forgot to set it make it depend on CONFIG_EMBEDDED. x86-64 had
this change before and it's a good thing.

I also fixed the description slightly to make this more clear.

Cc: len.brown@intel.com

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-26 09:53:30 -08:00
Andreas Deresch
6070f9ec6b [PATCH] i386: Handle non existing APICs without panicing
[description from AK]

This fixes booting in APIC mode on some ACER laptops. x86-64
did a similar change some time ago.

See http://bugzilla.kernel.org/show_bug.cgi?id=4700 for details

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-26 09:53:30 -08:00
Andi Kleen
13a229abc2 [PATCH] x86_64: Only do the clustered systems have unsynchronized TSC assumption on IBM systems
Big Unisys systems have multiple clusters too, but they have an
synchronized TSC.

I'm using the SMBIOS to check for vendor == IBM.

Cc: Chris McDermott <lcm@us.ibm.com>
Cc: "Protasevich, Natalie" <Natalie.Protasevich@unisys.com>

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-26 09:53:30 -08:00
Suresh Siddha
5342fba541 [PATCH] x86_64: Check for bad elf entry address.
Fixes a local DOS on Intel systems that lead to an endless
recursive fault.  AMD machines don't seem to be affected.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-26 09:53:30 -08:00
Jan Beulich
f83f2b5fba [PATCH] x86_64: fix USER_PTRS_PER_PGD
The value, while currently unused in the native kernel, was off by one.

Signed-Off-By: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-26 09:53:30 -08:00
Jon Mason
60b08c6722 [PATCH] x86_64: no_iommu removal in pci-gart.c
In previous versions of pci-gart.c, no_iommu was used to determine if IOMMU was
disabled in the GART DMA mapping functions.  This changed in 2.6.16 and now
gart_xxx() functions are only called if gart is enabled.  Therefore, uses of
no_iommu in the GART code are no longer necessary and can be removed.

Also, it removes double deceleration of no_iommu and force_iommu in pci.h and
proto.h, by removing the deceleration in pci.h.

Lastly, end_pfn off by one error.

Tested (along with patch 1/2) on dual opteron with gart enabled, iommu=soft,
and iommu=off.

Signed-off-by: Jon Mason <jdmason@us.ibm.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-26 09:53:29 -08:00
Marc Zyngier
04a3d311c0 [PATCH] Fix Specialix SI probing
As the (probably) last user of a Specialix SI board, I noticed that
recent kernels would fail to probe the sucker.  Quick investigation
indicate a few missing braces...

I left the double probing in place, as it looks like it's been here
forever.

Signed-off-by: Marc Zyngier <maz@misterjones.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-26 09:10:58 -08:00
Al Viro
4897080077 [PATCH] sd: fix memory corruption with broken mode page headers
There's a problem in sd where we blindly believe the length of the
headers and block descriptors.  Some devices return insane values for
these and cause our length to end up greater than the actual buffer
size, so check to make sure.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

Also removed the buffer size magic number (512) and added DPOFUA of
zero to the defaults

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-26 09:09:49 -08:00
Dave Jones
a0124d780d [PATCH] x86-64: react to new topology.c location
Commit 9c869edac5 moved the i386 topology.c
file. That change broke x86-64 compiles, as it uses the same file.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-25 11:12:15 -08:00
Linus Torvalds
5c1ca65c93 Merge master.kernel.org:/home/rmk/linux-2.6-serial 2006-02-24 16:01:07 -08:00
Linus Torvalds
c946160e60 Merge master.kernel.org:/home/rmk/linux-2.6-arm 2006-02-24 16:00:36 -08:00
Linus Torvalds
2cb5b6beef Merge git://git.kernel.org/pub/scm/linux/kernel/git/aia21/ntfs-2.6 2006-02-24 14:36:42 -08:00
Kumar Gala
329dda083e [PATCH] powerpc: Fix mem= cmdline handling on arch/powerpc for !MULTIPLATFORM
mem= command line option was being ignored in arch/powerpc if we were not
a CONFIG_MULTIPLATFORM (which is handled via prom_init stub). The initial
command line extraction and parsing needed to be moved earlier in the boot
process and have code to actual parse mem= and do something about it.

Also, fixed a compile warning in the file.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-24 14:34:50 -08:00