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path: root/drivers/char/ipmi
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2010-03-12ipmi: fix slave_addrs setting to actually workBela Lubkin
Actually use the slave_addrs module parameter if it is specified, and make things consistent about passing zero in for the slave address for the default. Signed-off-by: Bela Lubkin <blubkin@vmware.com> Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-12ipmi: add parameter to limit CPU usage in kipmidMartin Wilck
In some cases kipmid can use a lot of CPU. This adds a way to tune the CPU used by kipmid to help in those cases. By setting kipmid_max_busy_us to a value between 100 and 500, it is possible to bring down kipmid CPU load to practically 0 without loosing too much ipmi throughput performance. Not setting the value, or setting the value to zero, operation is unaffected. Signed-off-by: Martin Wilck <martin.wilck@ts.fujitsu.com> Signed-off-by: Corey Minyard <cminyard@mvista.com> Cc: Jean Delvare <jdelvare@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-30ACPI: fix ACPI=n allmodconfig buildIngo Molnar
Today's -tip failed to build because commit 9e368fa011d4e0aa050db348d69514900520e40b ("ipmi: add PNP discovery (ACPI namespace via PNPACPI)") from today's upstream kernel causes the following build failure on x86, for CONFIG_ACPI=n && CONFIG_IPMI_SI=y: drivers/char/ipmi/ipmi_si_intf.c:3208: error: 'ipmi_pnp_driver' undeclared (first use in this function) drivers/char/ipmi/ipmi_si_intf.c:3208: error: (Each undeclared identifier is reported only once drivers/char/ipmi/ipmi_si_intf.c:3208: error: for each function it appears in.) drivers/char/ipmi/ipmi_si_intf.c:3334: error: 'ipmi_pnp_driver' undeclared (first use in this function) The reason is that the ipmi_pnp_driver depends on ACPI facilities and is only made available under ACPI - while the registration and unregistration is made dependent on CONFIG_PNP: #ifdef CONFIG_PNP pnp_register_driver(&ipmi_pnp_driver); #endif The solution is to only register this driver under ACPI. (Also, the CONFIG_PNP dependency is not needed because pnp_register_driver() is stubbed out in the !CONFIG_PNP case.) Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Myron Stowe <myron.stowe@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-16Merge branch 'release' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (117 commits) ACPI processor: Fix section mismatch for processor_add() ACPI: Add platform-wide _OSC support. ACPI: cleanup pci_root _OSC code. ACPI: Add a generic API for _OSC -v2 msi-wmi: depend on backlight and fix corner-cases problems msi-wmi: switch to using input sparse keymap library msi-wmi: replace one-condition switch-case with if statement msi-wmi: remove unused field 'instance' in key_entry structure msi-wmi: remove custom runtime debug implementation msi-wmi: rework init msi-wmi: remove useless includes X86 drivers: Introduce msi-wmi driver Toshiba Bluetooth Enabling driver (RFKill handler v3) ACPI: fix for lapic_timer_propagate_broadcast() acpi_pad: squish warning ACPI: dock: minor whitespace and style cleanups ACPI: dock: add struct dock_station * directly to platform device data ACPI: dock: dock_add - hoist up platform_device_register_simple() ACPI: dock: remove global 'dock_device_name' ACPI: dock: combine add|alloc_dock_dependent_device (v2) ...
2009-12-16drivers/char/ipmi: Use KCS_IDLE_STATEJulia Lawall
KCS_IDLE and KCS_IDLE state have the same value, but in this function the constants ending in _STATE are compared to the state variable. Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: Core Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-12-16Merge branch 'ipmi' into releaseLen Brown
2009-12-15ipmi: add PNP discovery (ACPI namespace via PNPACPI)Bjorn Helgaas
This allows ipmi_si_intf.c to claim IPMI devices described in the ACPI namespace. Using PNP makes it simpler to parse the IRQ/IO/memory resources of the device. We look at any SPMI tables before looking for devices in the namespace. This is based on ipmi_pci_probe(). Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Myron Stowe <myron.stowe@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-15ipmi: refer to table as "SPMI", not "ACPI"Bjorn Helgaas
This discovery method uses the SPMI table, not the ACPI namespace. In the future, we will look in the namespace, so let's refer to the table as "SPMI" and save "ACPI" for the namespace. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-12-15ipmi: remove unused PCI probe codeBjorn Helgaas
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Len Brown <len.brown@intel.com>
2009-11-18sysctl: Drop & in front of every proc_handler.Eric W. Biederman
For consistency drop & in front of every proc_handler. Explicity taking the address is unnecessary and it prevents optimizations like stubbing the proc_handlers to NULL. Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Joe Perches <joe@perches.com> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2009-11-12sysctl drivers: Remove dead binary sysctl supportEric W. Biederman
Now that sys_sysctl is a wrapper around /proc/sys all of the binary sysctl support elsewhere in the tree is dead code. Cc: Jens Axboe <axboe@kernel.dk> Cc: Corey Minyard <minyard@acm.org> Cc: Greg Kroah-Hartman <gregkh@suse.de> Cc: Matt Mackall <mpm@selenic.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Neil Brown <neilb@suse.de> Cc: "James E.J. Bottomley" <James.Bottomley@suse.de> Acked-by: Clemens Ladisch <clemens@ladisch.de> for drivers/char/hpet.c Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2009-10-04headers: remove sched.h from poll.hAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-09-21trivial: add __init macro/ fix of __exit macro location in ipmi_poweroff.cPeter Huewe
Trivial patch which adds the __init to the module_init function of drivers/char/ipmi/ipmy_poweroff.c and corrects the location of __exit for the cleanup function. Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Acked-by: Corey Minyard <minyard@acm.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-06-15ipmi: remove driver_data direct access of struct deviceGreg Kroah-Hartman
In the near future, the driver core is going to not allow direct access to the driver_data pointer in struct device. Instead, the functions dev_get_drvdata() and dev_set_drvdata() should be used. These functions have been around since the beginning, so are backwards compatible with all older kernel versions. Cc: openipmi-developer@lists.sourceforge.net Acked-by: Corey Minyard <minyard@acm.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-05-22ipmi: fix ipmi_si modprobe hangCorey Minyard
Instead of queuing IPMB messages before channel initialization, just throw them away. Nobody will be listening for them at this point, anyway, and they will clog up the queue and nothing will be delivered if we queue them. Also set the current channel to the number of channels, as this value is used to tell if the channel information has been initialized. Signed-off-by: Corey Minyard <cminyard@mvista.com> Cc: Ferenc Wagner <wferi@niif.hu> Cc: Dan Frazier <dannf@hp.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-21ipmi: add oem message handlingdann frazier
Enable userspace to receive messages that a BMC transmits using an OEM medium. This is used by the HP iLO2. Based on code originally written by Patrick Schoeller. Signed-off-by: dann frazier <dannf@hp.com> Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-21ipmi: fix statistics counting issuesCorey Minyard
Bela Lubkin noticed that the statistics for send IPMB and LAN commands in the IPMI driver could be incremented even if an error occurred. Move the increments to the proper place to avoid this. Also add some statistics for retransmissions that failed, and some little helper functions to neaten up the code a little. Signed-off-by: Corey Minyard <cminyard@mvista.com> Cc: Bela Lubkin <blubkin@vmware.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-21ipmi: test for event buffer before usingCorey Minyard
The IPMI driver would attempt to use the event buffer even if that didn't exist on the BMC. This patch modified the IPMI driver to check for the event buffer's existence before trying to use it. Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-21ipmi: fix platform return checkCorey Minyard
The wrong return value is being tested when allocating a platform device in the IPMI SI code. Check the right value. Signed-off-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-03-31proc 2/2: remove struct proc_dir_entry::ownerAlexey Dobriyan
Setting ->owner as done currently (pde->owner = THIS_MODULE) is racy as correctly noted at bug #12454. Someone can lookup entry with NULL ->owner, thus not pinning enything, and release it later resulting in module refcount underflow. We can keep ->owner and supply it at registration time like ->proc_fops and ->data. But this leaves ->owner as easy-manipulative field (just one C assignment) and somebody will forget to unpin previous/pin current module when switching ->owner. ->proc_fops is declared as "const" which should give some thoughts. ->read_proc/->write_proc were just fixed to not require ->owner for protection. rmmod'ed directories will be empty and return "." and ".." -- no harm. And directories with tricky enough readdir and lookup shouldn't be modular. We definitely don't want such modular code. Removing ->owner will also make PDE smaller. So, let's nuke it. Kudos to Jeff Layton for reminding about this, let's say, oversight. http://bugzilla.kernel.org/show_bug.cgi?id=12454 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2008-11-12Fix platform drivers that crash on suspend/resumeDarrick J. Wong
It turns out that if one registers a struct platform_device, the platform device code expects that platform_device.device->driver points to a struct driver inside a struct platform_driver. This is not the case with the ipmi-si, ipmi-msghandler and ibmaem drivers, which causes the suspend/resume hook functions to jump off into nowhere, causing a crash. Make this assumption hold true for these three drivers. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Acked-by: Corey Minyard <cminyard@mvista.com> Cc: Jean Delvare <khali@linux-fr.org> Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Greg KH <greg@kroah.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-11-01saner FASYNC handling on file closeAl Viro
As it is, all instances of ->release() for files that have ->fasync() need to remember to evict file from fasync lists; forgetting that creates a hole and we actually have a bunch that *does* forget. So let's keep our lives simple - let __fput() check FASYNC in file->f_flags and call ->fasync() there if it's been set. And lose that crap in ->release() instances - leaving it there is still valid, but we don't have to bother anymore. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-30ipmi: add MODULE_ALIAS to load ipmi_devintf with ipmi_siScott James Remnant
The ipmi_devintf module contains the userspace interface for IPMI devices, yet will not be loaded automatically with a system interface handler driver. Add a MODULE_ALIAS for the "platform:ipmi_si" MODALIAS exported by the ipmi_si driver, so that userspace knows of the recommendation. Signed-off-by: Scott James Remnant <scott@ubuntu.com> Cc: Tim Gardner <tcanonical@tpi.com> Cc: Corey Minyard <minyard@acm.org> Cc: <stable@kernel.org> [2.6.27.x, maybe earlier?] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16device create: char: convert device_create_drvdata to device_createGreg Kroah-Hartman
Now that device_create() has been audited, rename things back to the original call to be sane. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-09-23powerpc: convert CONFIG_PPC_MERGE to CONFIG_PPC for legacy io checksKumar Gala
Now that arch/ppc is dead CONFIG_PPC_MERGE is always defined for all powerpc platforms and we want to get rid of CONFIG_PPC_MERGE use CONFIG_PPC instead. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-08-20drivers/char/ipmi/ipmi_si_intf.c:default_find_bmc(): fix leakAndrew Morton
If check_legacy_ioport() returns true, we leak *info. Addresses http://bugzilla.kernel.org/show_bug.cgi?id=11362 Reported-by: Daniel Marjamki <danielm77@spray.se> Cc: Christian Krafft <krafft@de.ibm.com> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: Corey Minyard <minyard@acm.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-30ipmi/powerpc: Use linux/of_{device,platform}.h instead of asmStephen Rothwell
Drivers should not include the asm variants anymore Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-07-21device create: char: convert device_create to device_create_drvdataGreg Kroah-Hartman
device_create() is race-prone, so use the race-free device_create_drvdata() instead as device_create() is going away. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-14Merge commit 'v2.6.26' into bkl-removalJonathan Corbet
2008-07-11[PATCH] IPMI: return correct value from ipmi_writeMark Rustad
This patch corrects the handling of write operations to the IPMI watchdog to work as intended by returning the number of characters actually processed. Without this patch, an "echo V >/dev/watchdog" enables the watchdog if IPMI is providing the watchdog function. Signed-off-by: Mark Rustad <MRustad@gmail.com> Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2008-07-02ipmi: fasync BKL pushdownJonathan Corbet
This driver really needs it to avoid races against open() Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-06-20ipmi-watchdog: BKL pushdownArnd Bergmann
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2008-06-20ipmi: cdev lock_kernel() pushdownJonathan Corbet
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-05-14ipmi: support I/O resources in OF driverNate Case
The current OF probing assumes that the resource is IORESOURCE_MEM. This checks for the IORESOURCE_IO flag and behaves appropriately. An I/O resource can exist with an ipmi device node on a legacy ISA bus. Signed-off-by: Nate Case <ncase@xes-inc.com> Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29ipmi: fix return from atca_oem_poweroff_hookAdrian Bunk
A void returning function returned the return value of another void returning function... Spotted by sparse. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29ipmi: make alloc_recv_msg staticAdrian Bunk
Make the needlessly global ipmi_alloc_recv_msg() static. Signed-off-by: Adrian Bunk <bunk@kernel.org> Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29ipmi: remove ->write_proc codeAlexey Dobriyan
IPMI code theoretically allows ->write_proc users, but nobody uses this thus far. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Acked-by: Corey Minyard <minyard@acm.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29ipmi: remove unused target and action in MakefileDenis Cheng
Kbuild system handles this automatically. Signed-off-by: Denis Cheng <crquan@gmail.com> Cc: Corey Minyard <minyard@acm.org> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29IPMI: Style fixes in the misc codeCorey Minyard
Lots of style fixes for the miscellaneous IPMI files. No functional changes. Basically fixes everything reported by checkpatch and fixes the comment style. Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29IPMI: Style fixes in the system interface codeCorey Minyard
Lots of style fixes for the IPMI system interface driver. No functional changes. Basically fixes everything reported by checkpatch and fixes the comment style. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Corey Minyard <cminyard@mvista.com> Cc: Rocky Craig <rocky.craig@hp.com> Cc: Hannes Schulz <schulz@schwaar.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29ipmi: style fixes in the base codeCorey Minyard
Lots of style fixes for the base IPMI driver. No functional changes. Basically fixes everything reported by checkpatch and fixes the comment style. Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29IPMI: Convert system interface defines to an enumCorey Minyard
Convert the #defines for statistics into an enum in the IPMI system interface and remove the unused timeout_restart statistic. And comment what these statistics mean. Signed-off-by: Corey Minyard <cminyard@mvista.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29ipmi: convert locked counters to atomics in the system interfaceCorey Minyard
Atomics are faster and neater than locked counters. Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29IPMI: convert message handler defines to an enumCorey Minyard
Convert the #defines for statistics into an enum in the IPMI message handler. Signed-off-by: Corey Minyard <cminyard@mvista.com> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29ipmi: convert locked counters to atomicsKonstantin Baydarov
Atomics are a lot more efficient and neat than using a lock. Signed-off-by: Konstantin Baydarov <kbaidarov@ru.mvista.com> Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29ipmi: update driver versionCorey Minyard
Enough bug fixes and changes that we need a new driver version. Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29ipmi: don't print event queue full on every eventCorey Minyard
Don't print out that the event queue is full on every event, only print something out when it becomes full or becomes not full. Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29ipmi: don't grab locks in run-to-completion modeKonstantin Baydarov
This patch prevents deadlocks in IPMI panic handler caused by msg_lock in smi_info structure and waiting_msgs_lock in ipmi_smi structure. [cminyard@mvista.com: remove unnecessary memory barriers] Signed-off-by: Konstantin Baydarov <kbaidarov@ru.mvista.com> Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29ipmi: run to completion fixesCorey Minyard
The "run_to_completion" mode was somewhat broken. Locks need to be avoided in run_to_completion mode, and it shouldn't be used by normal users, just internally for panic situations. This patch removes locks in run_to_completion mode and removes the user call for setting the mode. The only user was the poweroff code, but it was easily converted to use the polling interface. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Corey Minyard <cminyard@mvista.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-29ipmi: hold ATTN until upper layer readyCorey Minyard
Hold handling of ATTN until the upper layer has reported that it is ready. Signed-off-by: Corey Minyard <cminyard@mvista.com> Cc: Patrick Schoeller <Patrick.Schoeller@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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