Commit Graph

98 Commits

Author SHA1 Message Date
Corey Minyard
a51f4a81e7 [PATCH] IPMI: allow user to override the kernel IPMI daemon enable
After the previous patch to disable the kernel IPMI daemon if interrupts
were available, the issue of broken hardware was raised, and a reasonable
request to add an override was mode.  So here it is.

Allow the user to force the kernel ipmi daemon on or off.  This way,
hardware with broken interrupts or users that are not concerned with
performance can turn it on or off to their liking.

[akpm@osdl.org: save 4 bytes in vmlinux]
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03 08:03:42 -07:00
Jeff Garzik
397f4ebf4f [PATCH] ipmi: fix uninitialized data bug
gcc issues the following warning:

drivers/char/ipmi/ipmi_si_intf.c: In function ‘init_ipmi_si’:
drivers/char/ipmi/ipmi_si_intf.c:1729: warning: ‘data.irq’ may be used uninitialized in this function

This is indeed a bug.  data.irq is completely uninitialized in some code
paths.  Worse than that, data from a previous decode_dmi() run can easily
leak through successive calls.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
Acked-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-03 08:03:41 -07:00
Corey Minyard
df3fe8defe [PATCH] ipmi: don't start kipmid if the IPMI driver can use interrupts
If the driver has interrupts available to it, there is really no reason to
have a kernel daemon push the IPMI state machine.

Note that I have experienced machines where the interrupts do not work
correctly.  This was a long time ago and hopefully things are better now.
If some machines still have broken interrupts, a blacklist will need to be
added.

Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01 00:39:26 -07:00
Corey Minyard
c69c31270c [PATCH] IPMI: per-channel command registration
This patch adds the ability to register for a command per-channel in the
IPMI driver.

If your BMC supports multiple channels, incoming messages can be useful to
have the ability to register to receive commands on a specific channel
instead the current behaviour of all channels.

Signed-off-by: David Barksdale <amatus@ocgnet.org>
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-01 00:39:23 -07:00
Corey Minyard
4064d5ef26 [PATCH] IPMI: fix handling of OEM flags
If one of the OEM flags becomes set in the flags from the hardware, the
driver could hang if no OEM handler was set.  Fix the code to handle this.
This was tested by setting the flags by hand after they were fetched.

Signed-off-by: Corey Minyard <minyard@acm.org>
Ackde-by: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-16 12:54:31 -07:00
Arnaud Patard
55ebcc38a5 [PATCH] IPMI: Fix oops on ipmi_msghandler removal for non ipmi systems
When the ipmi_si module is loaded on a system without any ipmi device, it
fails with nodev.  It would be fine if all resources were freed.  A call to
device_unregister() is missing, resulting to a oops when you remove the
ipmi_msghandler.

Signed-off-by: Arnaud Patard <apatard@mandriva.com>
Acked-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-16 12:54:30 -07:00
Corey Minyard
a9eec55623 [PATCH] IPMI: fix occasional oops on module unload
Olaf Kirch of SuSE tracked down a problem where module unloads of the IPMI
driver would occasionally result in Oopses.  He tracked that down to a
variable that wasn't always initialized properly in some situations.  This
patch initializes that variable.  Olaf sent a patch that kzalloc-ed the
data, but this structure is large enough that I would perfer to not do
that.  Thanks Olaf!

Signed-off-by: Corey Minyard <minyard@acm.org>
Cc: Olaf Kirch <okir@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-01 11:39:09 -07:00
Arjan van de Ven
62322d2554 [PATCH] make more file_operation structs static
Mark the static struct file_operations in drivers/char as const.  Making
them const prevents accidental bugs, and moves them to the .rodata section
so that they no longer do any false sharing; in addition with the proper
debug option they are then protected against corruption..

[akpm@osdl.org: build fix]
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-03 15:26:59 -07:00
Thomas Gleixner
0f2ed4c6ba [PATCH] irq-flags: drivers/char: Use the new IRQF_ constants
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-02 13:58:49 -07:00
Jörn Engel
6ab3d5624e Remove obsolete #include <linux/config.h>
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-30 19:25:36 +02:00
Linus Torvalds
602cada851 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6: (22 commits)
  [PATCH] devfs: Remove it from the feature_removal.txt file
  [PATCH] devfs: Last little devfs cleanups throughout the kernel tree.
  [PATCH] devfs: Rename TTY_DRIVER_NO_DEVFS to TTY_DRIVER_DYNAMIC_DEV
  [PATCH] devfs: Remove the tty_driver devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the line_driver devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the videodevice devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the gendisk devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the miscdevice devfs_name field as it's no longer needed
  [PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree
  [PATCH] devfs: Remove devfs_remove() function from the kernel tree
  [PATCH] devfs: Remove devfs_mk_cdev() function from the kernel tree
  [PATCH] devfs: Remove devfs_mk_bdev() function from the kernel tree
  [PATCH] devfs: Remove devfs_mk_symlink() function from the kernel tree
  [PATCH] devfs: Remove devfs_mk_dir() function from the kernel tree
  [PATCH] devfs: Remove devfs_*_tape() functions from the kernel tree
  [PATCH] devfs: Remove devfs support from the sound subsystem
  [PATCH] devfs: Remove devfs support from the ide subsystem.
  [PATCH] devfs: Remove devfs support from the serial subsystem
  [PATCH] devfs: Remove devfs from the init code
  [PATCH] devfs: Remove devfs from the partition code
  ...
2006-06-29 14:19:21 -07:00
Corey Minyard
96febe9fb7 [PATCH] IPMI: watchdog handle panic properly
Modify the watchdog timeout in IPMI to only do things at panic/reboot time if
the watchdog timer was already running.  Some BIOSes do not disable the
watchdog timer at startup, and this led to a reboot a while later if the new
OS running didn't start monitoring the watchdog, even if the watchdog was not
running before.

Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28 14:59:06 -07:00
Corey Minyard
1a245866f8 [PATCH] IPMI: remove high res timer code
There was some old high-res-timer code in the IPMI driver that is dead.
Remove it.

Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28 14:59:05 -07:00
Corey Minyard
409035e088 [PATCH] IPMI: tidy msghandler timer
Tidy up the timer usage in the IPMI driver.

Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28 14:59:05 -07:00
Adrian Bunk
456229a91d [PATCH] drivers/char/ipmi/ipmi_msghandler.c: make proc_ipmi_root static
Make struct proc_ipmi_root static.

Besides this, tremove removes an unused #ifdef CONFIG_PROC_FS from
include/linux/ipmi.h.

Acked-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:48 -07:00
akpm@osdl.org
33979734cd [PATCH] IPMI: use schedule in kthread
Corey Minyard <minyard@acm.org>

The kthread used to speed up polling for IPMI was using udelay in its
busy-wait polling loop when the lower-level state machine told it to do a
short delay.  This just used CPU and didn't help scheduling, thus causing
bad problems with other tasks.  Call schedule() instead.

Signed-off-by: Corey Minyard <minyard@acm.org>
Acked-by: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-27 17:32:40 -07:00
Linus Torvalds
da206c9e68 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial
* git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial:
  typo fixes
  Clean up 'inline is not at beginning' warnings for usb storage
  Storage class should be first
  i386: Trivial typo fixes
  ixj: make ixj_set_tone_off() static
  spelling fixes
  fix paniced->panicked typos
  Spelling fixes for Documentation/atomic_ops.txt
  move acknowledgment for Mark Adler to CREDITS
  remove the bouncing email address of David Campbell
2006-06-26 13:33:14 -07:00
Greg Kroah-Hartman
ff23eca3e8 [PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree
Also fixes up all files that #include it.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26 12:25:08 -07:00
Greg Kroah-Hartman
8ab5e4c15b [PATCH] devfs: Remove devfs_remove() function from the kernel tree
Removes the devfs_remove() function and all callers of it.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26 12:25:07 -07:00
Greg Kroah-Hartman
7c69ef7974 [PATCH] devfs: Remove devfs_mk_cdev() function from the kernel tree
Removes the devfs_mk_cdev() function and all callers of it.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26 12:25:07 -07:00
Greg Kroah-Hartman
95dc112a57 [PATCH] devfs: Remove devfs_mk_dir() function from the kernel tree
Removes the devfs_mk_dir() function and all callers of it.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26 12:25:06 -07:00
Akinobu Mita
179e09172a [PATCH] drivers: use list_move()
This patch converts the combination of list_del(A) and list_add(A, B) to
list_move(A, B) under drivers/.

Acked-by: Corey Minyard <minyard@mvista.com>
Cc: Ben Collins <bcollins@debian.org>
Acked-by: Roland Dreier <rolandd@cisco.com>
Cc: Alasdair Kergon <dm-devel@redhat.com>
Cc: Gerd Knorr <kraxel@bytesex.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Frank Pavlic <fpavlic@de.ibm.com>
Acked-by: Matthew Wilcox <matthew@wil.cx>
Cc: Andrew Vasquez <linux-driver@qlogic.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-26 09:58:18 -07:00
Lee Revell
f18190bd34 fix paniced->panicked typos
In a testament to the utter simplicity and logic of the English
language ;-), I found a single correct use - in kernel/panic.c - and
10-15 incorrect ones.

Signed-Off-By: Lee Revell <rlrevell@joe-job.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-26 18:30:00 +02:00
Pekka Enberg
66f969d064 [PATCH] ipmi: strstrip conversion
Switch an open-coded strstrip() to use the new API.

Acked-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-23 07:43:06 -07:00
Corey Minyard
d61a3ead26 [PATCH] IPMI: reserve I/O ports separately
From: Corey Minyard <minyard@acm.org>

This patch is pretty important to get in for IPMI, new systems have been
changing the way ACPI and IPMI interact, and this works around the problems
for now.  This is a temporary fix until we get proper ACPI handling in
IPMI.

Fixed releasing already-allocated regions when a later request fails, and
forward-ported it to HEAD.

Some BIOSes reserve disjoint I/O regions in their ACPI tables for the IPMI
controller.  This causes problems when trying to register the entire I/O
region.  Therefore we must register each I/O port separately.

Signed-off-by: Jordan Hargrave <Jordan_Hargrave@dell.com>
Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-05-31 16:27:10 -07:00
Heikki Orsila
3fb0cb5d0f [PATCH] Open IPMI BT overflow
I was looking into random driver code and found a suspicious looking
memcpy() in drivers/char/ipmi/ipmi_bt_sm.c on 2.6.17-rc1:

	if ((size < 2) || (size > IPMI_MAX_MSG_LENGTH))
		return -1;
	...
	memcpy(bt->write_data + 3, data + 1, size - 1);

where sizeof bt->write_data is IPMI_MAX_MSG_LENGTH.  It looks like the
memcpy would overflow by 2 bytes if size == IPMI_MAX_MSG_LENGTH.  A patch
attached to limit size to (IPMI_MAX_LENGTH - 2).

Cc: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19 09:13:52 -07:00
Randy Dunlap
7420884c03 [PATCH] IPMI: fix devinit placement
gcc complains about __devinit in the wrong location:
drivers/char/ipmi/ipmi_si_intf.c:2205: warning: '__section__' attribute does not apply to types

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-19 09:13:52 -07:00
Corey Minyard
4791c03d2c [PATCH] ipmi: fix event queue limit
The event handler mechanism in the IPMI driver had a limit on the number of
received events, but the counts were not being updated.  Update the counts
to impose a limit.  This is not a critical fix, as this function (the
sending of the events) has to be turned on by the user, anyway.  This
avoids problems if they forget to turn it back off.

Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-04-11 06:18:45 -07:00
Corey Minyard
d6dfd1310d [PATCH] IPMI: convert from semaphores to mutexes
Convert the remaining semaphores to mutexes in the IPMI driver.  The
watchdog was using a semaphore as a real semaphore (for IPC), so the
conversion there required adding a completion.

Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-31 12:18:54 -08:00
Corey Minyard
8a3628d53f [PATCH] IPMI: tidy up various things
Tidy up various coding standard things, mostly removing the space after !,
but also break some long lines and fix a few other spacing inconsistencies.
Also fixes some bad error reporting when deleting an IPMI user.

Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-31 12:18:54 -08:00
Corey Minyard
453823ba08 [PATCH] IPMI: fix startup race condition
Matt Domsch noticed a startup race with the IPMI kernel thread, it was
possible (though extraordinarly unlikely) that a message could come in
before the upper layer was ready to handle it.  This patch splits the
startup processing of an IPMI interface into two parts, one to get ready
and one to actually start the processes to receive messages from the
interface.

[akpm@osdl.org: cleanups]
Signed-off-by: Corey Minyard <minyard@acm.org>
Cc: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-31 12:18:54 -08:00
Alan Stern
e041c68341 [PATCH] Notifier chain update: API changes
The kernel's implementation of notifier chains is unsafe.  There is no
protection against entries being added to or removed from a chain while the
chain is in use.  The issues were discussed in this thread:

    http://marc.theaimsgroup.com/?l=linux-kernel&m=113018709002036&w=2

We noticed that notifier chains in the kernel fall into two basic usage
classes:

	"Blocking" chains are always called from a process context
	and the callout routines are allowed to sleep;

	"Atomic" chains can be called from an atomic context and
	the callout routines are not allowed to sleep.

We decided to codify this distinction and make it part of the API.  Therefore
this set of patches introduces three new, parallel APIs: one for blocking
notifiers, one for atomic notifiers, and one for "raw" notifiers (which is
really just the old API under a new name).  New kinds of data structures are
used for the heads of the chains, and new routines are defined for
registration, unregistration, and calling a chain.  The three APIs are
explained in include/linux/notifier.h and their implementation is in
kernel/sys.c.

With atomic and blocking chains, the implementation guarantees that the chain
links will not be corrupted and that chain callers will not get messed up by
entries being added or removed.  For raw chains the implementation provides no
guarantees at all; users of this API must provide their own protections.  (The
idea was that situations may come up where the assumptions of the atomic and
blocking APIs are not appropriate, so it should be possible for users to
handle these things in their own way.)

There are some limitations, which should not be too hard to live with.  For
atomic/blocking chains, registration and unregistration must always be done in
a process context since the chain is protected by a mutex/rwsem.  Also, a
callout routine for a non-raw chain must not try to register or unregister
entries on its own chain.  (This did happen in a couple of places and the code
had to be changed to avoid it.)

Since atomic chains may be called from within an NMI handler, they cannot use
spinlocks for synchronization.  Instead we use RCU.  The overhead falls almost
entirely in the unregister routine, which is okay since unregistration is much
less frequent that calling a chain.

Here is the list of chains that we adjusted and their classifications.  None
of them use the raw API, so for the moment it is only a placeholder.

  ATOMIC CHAINS
  -------------
arch/i386/kernel/traps.c:		i386die_chain
arch/ia64/kernel/traps.c:		ia64die_chain
arch/powerpc/kernel/traps.c:		powerpc_die_chain
arch/sparc64/kernel/traps.c:		sparc64die_chain
arch/x86_64/kernel/traps.c:		die_chain
drivers/char/ipmi/ipmi_si_intf.c:	xaction_notifier_list
kernel/panic.c:				panic_notifier_list
kernel/profile.c:			task_free_notifier
net/bluetooth/hci_core.c:		hci_notifier
net/ipv4/netfilter/ip_conntrack_core.c:	ip_conntrack_chain
net/ipv4/netfilter/ip_conntrack_core.c:	ip_conntrack_expect_chain
net/ipv6/addrconf.c:			inet6addr_chain
net/netfilter/nf_conntrack_core.c:	nf_conntrack_chain
net/netfilter/nf_conntrack_core.c:	nf_conntrack_expect_chain
net/netlink/af_netlink.c:		netlink_chain

  BLOCKING CHAINS
  ---------------
arch/powerpc/platforms/pseries/reconfig.c:	pSeries_reconfig_chain
arch/s390/kernel/process.c:		idle_chain
arch/x86_64/kernel/process.c		idle_notifier
drivers/base/memory.c:			memory_chain
drivers/cpufreq/cpufreq.c		cpufreq_policy_notifier_list
drivers/cpufreq/cpufreq.c		cpufreq_transition_notifier_list
drivers/macintosh/adb.c:		adb_client_list
drivers/macintosh/via-pmu.c		sleep_notifier_list
drivers/macintosh/via-pmu68k.c		sleep_notifier_list
drivers/macintosh/windfarm_core.c	wf_client_list
drivers/usb/core/notify.c		usb_notifier_list
drivers/video/fbmem.c			fb_notifier_list
kernel/cpu.c				cpu_chain
kernel/module.c				module_notify_list
kernel/profile.c			munmap_notifier
kernel/profile.c			task_exit_notifier
kernel/sys.c				reboot_notifier_list
net/core/dev.c				netdev_chain
net/decnet/dn_dev.c:			dnaddr_chain
net/ipv4/devinet.c:			inetaddr_chain

It's possible that some of these classifications are wrong.  If they are,
please let us know or submit a patch to fix them.  Note that any chain that
gets called very frequently should be atomic, because the rwsem read-locking
used for blocking chains is very likely to incur cache misses on SMP systems.
(However, if the chain's callout routines may sleep then the chain cannot be
atomic.)

The patch set was written by Alan Stern and Chandra Seetharaman, incorporating
material written by Keith Owens and suggestions from Paul McKenney and Andrew
Morton.

[jes@sgi.com: restructure the notifier chain initialization macros]
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com>
Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-27 08:44:50 -08:00
Corey Minyard
a23f9a3cfe [PATCH] ipmi: Increment driver version to v39.0
Need to increment the version number because of the new PCI and sysfs
capabilities of the driver.  People maintaining things for distros have
asked that I do this after interface or major functional changes.

Signed-off-by: Corey Minyard <minyard@acm.org>
Acked-by: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26 08:56:56 -08:00
Corey Minyard
50c812b2b9 [PATCH] ipmi: add full sysfs support
Add full driver model support for the IPMI driver.  It links in the proper
bus and device support.

It adds an "ipmi" driver interface that has each BMC discovered by the
driver (as a device).  These BMCs appear in the devices/platform directory.
 If there are multiple interfaces to the same BMC, the driver should
discover this and will only have one BMC entry.  The BMC entry will have
pointers to each interface device that connects to it.

The device information (statistics and config information) has not yet been
ported over to the driver model from proc, that will come later.

This work was based on work by Yani Ioannou.  I basically rewrote it using
that code as a guide, but he still deserves credit :).

[bunk@stusta.de: make ipmi_find_bmc_guid() static]
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Yani Ioannou <yani.ioannou@gmail.com>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26 08:56:56 -08:00
Corey Minyard
b0defcdbd2 [PATCH] ipmi: add generic PCI handling
Modify the PCI hanling code for the IPMI driver to use the new method of
tables and registering, and adds more generic PCI handling for IPMI.
Unfortunately, this required a rather large rework of the way the driver
did detection so it would be more event-driven.

[bunk@stusta.de: make a struct static]
Signed-off-by: Corey Minyard <minyard@acm.org>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-26 08:56:56 -08:00
Adrian Bunk
5c98d29ae4 [PATCH] drivers/char/ipmi/ipmi_msghandler.c: fix a memory leak
The Coverity checker found this memory leak.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:57 -08:00
Olaf Hering
e933b6d651 [PATCH] remove ipmi pm_power_off redefinition
Use the global define of pm_power_off

Signed-off-by: Olaf Hering <olh@suse.de>
Cc: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-24 07:33:24 -08:00
Jayachandran C
12fc1d7b4b [PATCH] IPMI: fix issues reported by Coverity in ipmi_msghandler.c
While looking to the report by Coverity in ipmi, I came across the
following issue:

The IPMI message handler relies on two defines which are the same -one in
include/linux/ipmi.h
#define IPMI_NUM_CHANNELS 0x10
and one in drivers/char/ipmi/ipmi_msghandler.
#define IPMI_MAX_CHANNELS       16
These are used interchangeably in ipmi_msghandler.c, but since the array
addr->channels[] is of size IPMI_MAX_CHANNELS, I have made a patch that
uses IPMI_MAX_CHANNELS for all the checks for the array index.

NOTE: You could probably remove the line that defines IPMI_NUM_CHANNELS
from ipmi.h, or move IPMI_MAX_CHANNELS to ipmi.h

Signed-off-by: Jayachandran C. <c.jayachandran@gmail.com>
Cc: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-03 08:32:11 -08:00
Alexey Dobriyan
546cfdf47f [PATCH] ipmi: mem_{in,out}[bwl] => intf_mem_{in,out}[bwl]
On mips:

drivers/char/ipmi/ipmi_si_intf.c:1274: error: conflicting types for 'mem_inb'
include/asm/io.h:436: error: previous definition of 'mem_inb' was here

Don't look at line 436 unless you really know what you're doing.

Move those static functions out of more or less generic namespace.

Signed-off-by: Alexey "## should be banned" Dobriyan <adobriyan@gmail.com>
Acked-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-03 08:32:09 -08:00
Rocky Craig
94f91def99 [PATCH] IPMI: remove invalid acpi register spacing check
At the 2.6.12 timeframe ipmi_si_intf.c was patched to provide default
register spacings in try_init_acpi() if the register spacing was set to
zero, similar to code in other routines.

Unfortunately, another patch was simultaneously added that exits early from
try_init_acpi() if the register spacings are set to zero, circumventing the
new defaults.  This patch removes the early exit code and some incorrect
comments that aren't present in other common code snippets.

Signed-off-by: Rocky Craig <rocky.craig@hp.com>
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-02-01 08:53:11 -08:00
Matt Domsch
a9fad4cc39 [PATCH] ipmi: use CONFIG_DMI instead of CONFIG_X86
With Andi Kleen's x86_64 patch to use DMI, and my ia64 to use DMI, there is
now a new CONFIG_DMI option which takes the place of CONFIG_X86 to denote
the availability of the DMI functions.  Make the IPMI driver use CONFIG_DMI
instead.

Tested on ia64 2.6.15 kernel plus the previous patch, on a Dell PowerEdge
7250 Itanium2 server, and it now autodetects the IPMI KCS driver as
expected.

Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Acked-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-11 18:42:13 -08:00
Adrian Bunk
be4f1bb262 [PATCH] ipmi: fix compile errors with PROC_FS=n
...
  CC [M]  drivers/char/ipmi/ipmi_msghandler.o
drivers/char/ipmi/ipmi_msghandler.c:3301: `proc_ipmi_root' undeclared here (not in a function)
drivers/char/ipmi/ipmi_msghandler.c:3301: initializer element is not constant
drivers/char/ipmi/ipmi_msghandler.c:3301: (near initialization for `__ksymtab_proc_ipmi_root.value')
drivers/char/ipmi/ipmi_msghandler.c:1535: warning: `ipmb_file_read_proc' defined but not used
drivers/char/ipmi/ipmi_msghandler.c:1551: warning: `version_file_read_proc' defined but not used
drivers/char/ipmi/ipmi_msghandler.c:1561: warning: `stat_file_read_proc' defined but not used
...
  CC [M]  drivers/char/ipmi/ipmi_poweroff.o
drivers/char/ipmi/ipmi_poweroff.c: In function `ipmi_poweroff_init':
drivers/char/ipmi/ipmi_poweroff.c:616: warning: implicit declaration of function `unregister_sysctl_table'
drivers/char/ipmi/ipmi_poweroff.c:616: `ipmi_table_header' undeclared (first use in this function)
drivers/char/ipmi/ipmi_poweroff.c:616: (Each undeclared identifier is reported only once
drivers/char/ipmi/ipmi_poweroff.c:616: for each function it appears in.)

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Cc: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:25 -08:00
Paul E. McKenney
066bb8d03b [PATCH] fix remaining list_for_each_safe_rcu in -mm (take 2)
I missed a use of list_for_each_rcu_safe() in -mm tree.  Here is an updated
patch to fix it.  This time tested on a machine that actually uses IPMI...
(Thanks to Serge Hallyn for spotting this.)

Signed-off-by: "Paul E. McKenney" <paulmck@us.ibm.com>
Cc: Corey Minyard <minyard@acm.org>
Cc: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:58 -08:00
Paolo Galtieri
7767e126ca [PATCH] IPMI oops fix
While doing some testing I discovered that if the BIOS on a board does not
properly setup the DMI information it leads to a panic in the IPMI code.

The panic is due to dereferencing a pointer which is not initialized.  The
pointer is initialized in port_setup() and/or mem_setup() and used in
init_one_smi() and cleanup_one_si(), however if either port_setup() or
mem_setup() return ENODEV the pointer does not get initialized.

Signed-off-by: Paolo Galtieri <pgaltieri@mvista.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-15 14:22:45 -08:00
Matt Domsch
cda315aba3 [PATCH] ipmi: fix panic generator ID
The IPMI specifcation says the generator ID is 0x20, but that is for bits
7-1.  Bit 0 is set to specify it is a software event.  The correct value is
0x41.  Without this fix, panic events written into the System Event Log
appear to come from an "unknown" generator, rather than from the kernel.

Signed-off-by: Jordan Hargrave <Jordan_Hargrave@dell.com>
Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Acked-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12 08:57:45 -08:00
Matt Domsch
44f080c46e [PATCH] ipmi: missing NULL test for kthread
On IPMI systems with BT interfaces, we don't start the kernel thread, so
smi_info->thread is NULL.  Test for NULL when stopping the thread, because
kthread_stop() doesn't, and an oops ensues otherwise.

Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Acked-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-18 07:49:45 -08:00
Corey Minyard
3225e1d3d1 [PATCH] ipmi: bump-driver-version
Lots of good changes to the driver lately that userspace will care about
the version of the driver.  Bump the version from 36.0 to 38.0 to be higher
than 37 that the 2.4 driver came out with a few weeks ago which doesn't
have all the same changes.

Signed-off-by: Matt Domsch <Matt_Domsch@dell.com>
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-15 08:59:19 -08:00
Hironobu Ishii
177294d191 [PATCH] ipmi: fix inconsistent spinlock usage
Part of a patch was accidentally reverted, this corrects an
inconsistent spinlock use in the IPMI message handler.

Signed-off-by: Hironobu Ishii <hishii@soft.fujitsu.com>
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-11 09:23:31 -08:00
Corey Minyard
b385676b35 [PATCH] ipmi: fix watchdog timeout panic handling
If a panic came from the IPMI watchdog pretimeout and that was reported via
an NMI, it would also be reported via the standard IPMI flags, which would
get picked up when reporting panic events and cause another panic.  This
adds an atomic to avoid calling panic twice.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07 07:53:45 -08:00
Corey Minyard
e61fb5b651 [PATCH] ipmi: use rcu lock for using command receivers
Use rcu_read_lock for the cmd_rcvrs list, since that was what what
intended, anyway.  This means that all the users of the cmd_rcvrs_lock are
tasks, so the irq disables are no longer required for that lock and it can
become a semaphore.

Signed-off-by: Corey Minyard <minyard@acm.org>
Acked-by: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-07 07:53:45 -08:00