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* dm mpath: rdacChandra Seetharaman2007-07-123-0/+708
| | | | | | | | | | | | | | | | | This patch supports LSI/Engenio devices in RDAC mode. Like dm-emc it requires userspace support. In your multipath.conf file you must have: path_checker rdac hardware_handler "1 rdac" prio_callout "/sbin/mpath_prio_tpc /dev/%n" And you also then must have a updated multipath tools release which has rdac support. Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dm raid1: handle log failureJonathan Brassow2007-07-121-4/+8
| | | | | | | | | | | | | | | | | | | | When writing to a mirror, the log must be updated first. Failure to update the log could result in the log not properly reflecting the state of the mirror if the machine should crash. We change the return type of the rh_flush function to give us the ability to check if a log write was successful. If the log write was unsuccessful, we fail the writes to avoid the case where the log does not properly reflect the state of the mirror. A follow-up patch - which is dependent on the ability to requeue I/O's to core device-mapper - will requeue the I/O's for retry (allowing the mirror to be reconfigured.) Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dm raid1: handle resync failuresJonathan Brassow2007-07-121-3/+41
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Device-mapper mirroring currently takes a best effort approach to recovery - failures during mirror synchronization are completely ignored. This means that regions are marked 'in-sync' and 'clean' and removed from the hash list. Future reads and writes that query the region will incorrectly interpret the region as in-sync. This patch handles failures during the recovery process. If a failure occurs, the region is marked as 'not-in-sync' (aka RH_NOSYNC) and added to a new list 'failed_recovered_regions'. Regions on the 'failed_recovered_regions' list are not marked as 'clean' upon removal from the list. Furthermore, if the DM_RAID1_HANDLE_ERRORS flag is set, the region is marked as 'not-in-sync'. This action prevents any future read-balancing from choosing an invalid device because of the 'not-in-sync' status. If "handle_errors" is not specified when creating a mirror (leaving the DM_RAID1_HANDLE_ERRORS flag unset), failures will be ignored exactly as they would be without this patch. This is to preserve backwards compatibility with user-space tools, such as 'pvmove'. However, since future read-balancing policies will rely on the correct sync status of a region, a user must choose "handle_errors" when using read-balancing. Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dm: add ratelimit logging macrosJonathan Brassow2007-07-121-4/+36
| | | | | | | | Add ratelimit extension to dm logging macros. Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dm: disable barriersStefan Bader2007-07-124-12/+9
| | | | | | | | | | | | | This patch causes device-mapper to reject any barrier requests. This is done since most of the targets won't handle this correctly anyway. So until the situation improves it is better to reject these requests at the first place. Since barrier requests won't get to the targets, the checks there can be removed. Cc: stable@kernel.org Signed-off-by: Stefan Bader <shbader@de.ibm.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dm raid1: clear region outside spinlockJonathan Brassow2007-07-121-6/+6
| | | | | | | | | | | | | | | | | | | | | | A clear_region function is permitted to block (in practice, rare) but gets called in rh_update_states() with a spinlock held. The bits being marked and cleared by the above functions are used to update the on-disk log, but are never read directly. We can perform these operations outside the spinlock since the bits are only changed within one thread viz. - mark_region in rh_inc() - clear_region in rh_update_states(). So, we grab the clean_regions list items via list_splice() within the spinlock and defer clear_region() until we iterate over the list for deletion - similar to how the recovered_regions list is already handled. We then move the flush() call down to ensure it encapsulates the changes which are done by the later calls to clear_region(). Signed-off-by: Jonathan Brassow <jbrassow@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dm snapshot: permit invalid activationMilan Broz2007-07-122-6/+10
| | | | | | | | | | | | | Allow invalid snapshots to be activated instead of failing. This allows userspace to reinstate any given snapshot state - for example after an unscheduled reboot - and clean up the invalid snapshot at its leisure. Cc: stable@kernel.org Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dm snapshot: fix invalidation deadlockMilan Broz2007-07-121-5/+43
| | | | | | | | | | | | | | Process persistent exception store metadata IOs in a separate thread. A snapshot may become invalid while inside generic_make_request(). A synchronous write is then needed to update the metadata while still inside that function. Since the introduction of md-dm-reduce-stack-usage-with-stacked-block-devices.patch this has to be performed by a separate thread to avoid deadlock. Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dm io: fix panic on large requestJun'ichi Nomura2007-07-121-1/+4
| | | | | | | | | | bio_alloc_bioset() will return NULL if 'num_vecs' is too large. Use bio_get_nr_vecs() to get estimation of maximum number. Cc: stable@kernel.org Signed-off-by: "Jun'ichi Nomura" <j-nomura@ce.jp.nec.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dm raid1: fix statusMilan Broz2007-07-121-2/+2
| | | | | | | | | | | | Fix mirror status line broken in dm-log-report-fault-status.patch: - space missing between two words - placeholder ("0") required for compatibility with a subsequent patch - incorrect offset parameter Cc: stable@kernel.org Signed-off-by: Milan Broz <mbroz@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dm: remove duplicate module name from error msgsAlasdair G Kergon2007-07-123-9/+6
| | | | | | | | Remove explicit module name from messages as the macro now includes it automatically. Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dm delay: cleanupAlasdair G Kergon2007-07-121-7/+5
| | | | | | | | Use setup_timer(). Replace semaphore with mutex. Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dm: use kmem_cache macroAlasdair G Kergon2007-07-128-121/+106
| | | | | | | | | | Use new KMEM_CACHE() macro and make the newly-exposed structure names more meaningful. Also remove some superfluous casts and inlines (let a modern compiler be the judge). Acked-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dm: bio_list prefetch removalAlasdair G Kergon2007-07-121-3/+1
| | | | | | | | Remove dubious prefetch from bio_list_for_each() macro. Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2007-07-121-22/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (50 commits) [ARM] sa1100: remove boot time RTC initialisation [ARM] sa1100: stop doing our own rtc management over suspend [ARM] 4474/1: Do not check the PSR_F_BIT in valid_user_regs [ARM] 4473/2: Take the HWCAP definitions out of the elf.h file [ARM] pxa: move platform devices to separate header file [ARM] pxa: move device registration into CPU-specific file [ARM] pxa: remove boot time RTC initialisation [ARM] pxa: stop doing our own rtc management over suspend [ARM] 4451/1: pxa: make dma.c generic and remove cpu specific dma code [ARM] 4450/1: pxa: add pxa25x_init_irq() and pxa27x_init_irq() [ARM] 4440/1: PXA: enable the checking of ICIP2 for IRQs [ARM] 4438/1: PXA: remove #ifdef .. #endif from pxa_gpio_demux_handler() [ARM] 4437/1: PXA: move the GPIO IRQ initialization code to pxa_init_irq_gpio() [ARM] 4436/1: PXA: move low IRQ initialization code to pxa_init_irq_low() [ARM] 4435/1: PXA: remove PXA_INTERNAL_IRQS [ARM] 4434/1: PXA: remove PXA_IRQ_SKIP [ARM] pxa: Fix PXA27x suspend type validation, remove pxa_pm_prepare() [ARM] pxa: move pm_ops structure into CPU specific files [ARM] pxa: introduce cpu_is_pxaXXX macros [ARM] pxa: remove MMC register defines from pxa-regs.h ...
| * [ARM] pxa: remove MMC register defines from pxa-regs.hRussell King2007-07-121-22/+0
| | | | | | | | | | | | | | pxamci.h redefines the MMC registers differently so they can be used with ioremap. Remove the incompatible definitions from pxa-regs.h. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreqLinus Torvalds2007-07-123-17/+54
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Fix sysfs_create_file return value handling [CPUFREQ] ondemand: fix tickless accounting and software coordination bug [CPUFREQ] ondemand: add a check to avoid negative load calculation [CPUFREQ] Keep userspace governor quiet when it is not being used [CPUFREQ] Longhaul - Proper register access [CPUFREQ] Kconfig powernow-k8 driver should depend on ACPI P-States driver [CPUFREQ] Longhaul - Replace ACPI functions with direct I/O [CPUFREQ] Longhaul - Remove duplicate multipliers [CPUFREQ] Longhaul - Embedded "conservative" [CPUFREQ] acpi-cpufreq: Proper ReadModifyWrite of PERF_CTL MSR [CPUFREQ] check return value of sysfs_create_file [CPUFREQ] Longhaul - Check ACPI "BM DMA in progress" bit [CPUFREQ] Longhaul - Move old_ratio to correct place [CPUFREQ] Longhaul - VT8237 support [CPUFREQ] Longhaul - Use all kinds of support [CPUFREQ] powernow-k8: clarify number of cores.
| * | [CPUFREQ] Fix sysfs_create_file return value handlingTobias Klauser2007-06-211-3/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 0a4b2ccc555fa2ca6873d60219047104e4805d45 in cpufreq.git eliminates the build warnings but does not pass on the error code of sysfs_create_file to the function calling cpufreq_add_dev. Instead some previous value of ret would be returned. Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] ondemand: fix tickless accounting and software coordination bugVenki Pallipadi2007-06-211-7/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With tickless kernel and software coordination os P-states, ondemand can look at wrong idle statistics. This can happen when ondemand sampling is happening on CPU 0 and due to software coordination sampling also looks at utilization of CPU 1. If CPU 1 is in tickless state at that moment, its idle statistics will not be uptodate and CPU 0 thinks CPU 1 is idle for less amount of time than it actually is. This can be resolved by looking at all the busy times of CPUs, which is accurate, even with tickless, and use that to determine idle time in a round about way (total time - busy time). Thanks to Arjan for originally reporting the ondemand bug on Lenovo T61. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] ondemand: add a check to avoid negative load calculationVenki Pallipadi2007-06-211-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | Due to rounding and inexact jiffy accounting, idle_ticks can sometimes be higher than total_ticks. Make sure those cases are handled as zero load case. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] Keep userspace governor quiet when it is not being usedVenki Pallipadi2007-06-211-3/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | Userspace governor registers a frequency change notifier at init time, even when no CPU is set to userspace governor. Make it register only when atleast one CPU is using userspace. Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Signed-off-by: Dave Jones <davej@redhat.com>
| * | [CPUFREQ] check return value of sysfs_create_fileThomas Renninger2007-05-291-5/+10
| | | | | | | | | | | | | | | | | | | | | Eliminate build warning (sysfs_create_file return value must be checked) Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Dave Jones <davej@redhat.com>
* | | Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgartLinus Torvalds2007-07-121-1/+1
|\ \ \ | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davej/agpgart: [AGPGART] Hand off AGP maintainence.
| * | | [AGPGART] Hand off AGP maintainence.Dave Jones2007-07-091-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Most of the AGP changes recently have been done in lock-step with DRM updates, so it's probably easier to have airlied pushing AGP changes at the same time he does DRM updates. [Also remove my name from the boot messages. Cautionary tale to others: Never do this, when computers don't boot, people assume you're responsible even if 15 other subsystems initialised after yours. :-) ] Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Dave Airlie <airlied@linux.ie>
* | | | Merge branch 'release' of ↵Linus Torvalds2007-07-121-29/+44
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6 * 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6: [IA64] Support multiple CPUs going through OS_MCA [IA64] silence GCC ia64 unused variable warnings [IA64] prevent MCA when performing MMIO mmap to PCI config space [IA64] add sn_register_pmi_handler oemcall [IA64] Stop bit for brl instruction [IA64] SN: Correct ROM resource length for BIOS copy [IA64] Don't set psr.ic and psr.i simultaneously
| * | | | [IA64] SN: Correct ROM resource length for BIOS copyJohn Keller2007-07-091-29/+44
| | |_|/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On SN systems, when setting the IORESOURCE_ROM_BIOS_COPY resource flag, the resource length should be set to the actual size of the ROM image so that a call to pci_map_rom() returns the correct size. Signed-off-by: John Keller <jpk@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Tony Luck <tony.luck@intel.com>
* | | | Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6Linus Torvalds2007-07-12107-661/+652
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/gregkh/pci-2.6: (34 commits) PCI: Only build PCI syscalls on architectures that want them PCI: limit pci_get_bus_and_slot to domain 0 PCI: hotplug: acpiphp: avoid acpiphp "cannot get bridge info" PCI hotplug failure PCI: hotplug: acpiphp: remove hot plug parameter write to PCI host bridge PCI: hotplug: acpiphp: fix slot poweroff problem on systems without _PS3 PCI: hotplug: pciehp: wait for 1 second after power off slot PCI: pci_set_power_state(): check for PM capabilities earlier PCI: cpci_hotplug: Convert to use the kthread API PCI: add pci_try_set_mwi PCI: pcie: remove SPIN_LOCK_UNLOCKED PCI: ROUND_UP macro cleanup in drivers/pci PCI: remove pci_dac_dma_... APIs PCI: pci-x-pci-express-read-control-interfaces cleanups PCI: Fix typo in include/linux/pci.h PCI: pci_ids, remove double or more empty lines PCI: pci_ids, add atheros and 3com_2 vendors PCI: pci_ids, reorder some entries PCI: i386: traps, change VENDOR to DEVICE PCI: ATM: lanai, change VENDOR to DEVICE PCI: Change all drivers to use pci_device->revision ...
| * | | | PCI: Only build PCI syscalls on architectures that want themMatthew Wilcox2007-07-111-3/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PCI syscalls are built on every architecture except X86, but only a few have ever hooked them up. Use a new Kconfig symbol to save a couple of kB on the architectures that have never used the syscalls. Tested on x86 and ia64 only. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: limit pci_get_bus_and_slot to domain 0Randy Dunlap2007-07-111-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Limit pci_get_bus_and_slot() to domain (segment) 0 since domain is not specified in the function call and defaulting to domain 0 is the only reasonable thing to do (rather than returning a device from some other unknown domain). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: H. Peter Anvin <hpa@zytor.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: hotplug: acpiphp: avoid acpiphp "cannot get bridge info" PCI hotplug ↵Gary Hade2007-07-111-2/+46
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | failure On some systems, the ACPI bus check event can reference a bridge that is higher in the ACPI hierarchy than the bridge immediately above the hotplug PCI slot into which an adapter was just inserted. The current 'acpiphp' code expects the bus check event to reference the bridge immediately above the slot that received the adapter so the hotplug operation can fail on these systems with the message "acpiphp_glue: cannot get bridge info". This change fixes the problem by re-enumerating all slots that lie below the bridge referenced by the bus check event, including those slots that may be located under lower level PCI-to-PCI bridge(s). Signed-off-by: Gary Hade <garyhade@us.ibm.com> Cc: <lcm@us.ibm.com> Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: hotplug: acpiphp: remove hot plug parameter write to PCI host bridgeGary Hade2007-07-111-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | acpiphp is writing hot plug parameters to the PCI host bridge PCI config space. This patch removes the incorrect operation. Signed-off-by: Gary Hade <garyhade@us.ibm.com> Cc: <lcm@us.ibm.com> Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: hotplug: acpiphp: fix slot poweroff problem on systems without _PS3Gary Hade2007-07-113-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On systems where the optional _PS3 ACPI object is not implemented acpiphp fails to power off the slot. This is happening because the current code does not attempt to remove power using the _EJ0 ACPI object. This patch restores the _EJ0 evaluation attempt which was apparently inadvertently removed from the power-off sequence when the _EJ0 evaluation code was relocated from power_off_slot() to acpiphp_eject_slot(). Signed-off-by: Gary Hade <garyhade@us.ibm.com> Cc: <lcm@us.ibm.com> Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: hotplug: pciehp: wait for 1 second after power off slotKenji Kaneshige2007-07-111-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | According to the specification, we must wait for at least 1 second after turning power off before taking any action that relies on power having been removed from the slot/adapter. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: pci_set_power_state(): check for PM capabilities earlierAndrew Lunn2007-07-111-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Check for PCI_CAP_ID_PM before checking the device state. Apparently fixes some log spam via the 3c59x driver. Signed-off-by: Andrew Lunn <andrew.lunn@ascom.ch> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: cpci_hotplug: Convert to use the kthread APIScott Murray2007-07-111-45/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Scott Murray <scottm@somanetworks.com> Acked-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: add pci_try_set_mwiRandy Dunlap2007-07-119-17/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As suggested by Andrew, add pci_try_set_mwi(), which does not require return-value checking. - add pci_try_set_mwi() without __must_check - make it return 0 on success, errno if the "try" failed or error - review callers Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: pcie: remove SPIN_LOCK_UNLOCKEDMilind Arun Choudhary2007-07-111-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: ROUND_UP macro cleanup in drivers/pciMilind Arun Choudhary2007-07-112-7/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ROUND_UP macro cleanup, use ALIGN where ever appropriate Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com> Acked-by: Scott Murray <scottm@somanetworks.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: pci-x-pci-express-read-control-interfaces cleanupsAndrew Morton2007-07-112-6/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - remove unneeded local - 80-col fix Cc: Peter Oruba <peter.oruba@amd.com> Cc: Roland Dreier <rolandd@cisco.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: ATM: lanai, change VENDOR to DEVICEJiri Slaby2007-07-111-10/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | lanai, change VENDOR to DEVICE There were 2 bad named macros in pci_ids (LANAI 2 and IHB). Rename it to DEVICE, because it's device id. Also make some cleanpu in pci_device_id table (use PCI_VDEVICE). Cc: Mitchell Blank Jr <mitch@sfgoth.com> Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: Change all drivers to use pci_device->revisionAuke Kok2007-07-1174-393/+160
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of all drivers reading pci config space to get the revision ID, they can now use the pci_device->revision member. This exposes some issues where drivers where reading a word or a dword for the revision number, and adding useless error-handling around the read. Some drivers even just read it for no purpose of all. In devices where the revision ID is being copied over and used in what appears to be the equivalent of hotpath, I have left the copy code and the cached copy as not to influence the driver's performance. Compile tested with make all{yes,mod}config on x86_64 and i386. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Acked-by: Dave Jones <davej@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: read revision ID by defaultAuke Kok2007-07-111-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently there are 97 occurrences where drivers need the pci revision ID. We can do this once for all devices. Even the pci subsystem needs the revision several times for quirks. The extra u8 member pads out nicely in the pci_dev struct. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: remove useless pci driver methodDavid Brownell2007-07-115-23/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove pointless and never-called enable_wake() hook from pci_driver and from documentation. Evidently this was introduced in the 2.4.6 kernel, but there's no evidence it was ever called; and it was rarely implemented. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: unexport pci_proc_attach_deviceAdrian Bunk2007-07-111-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On Mon, Apr 02, 2007 at 10:47:45PM -0700, Andrew Morton wrote: >... > Changes since 2.6.21-rc5-mm3: >... > +fix-82875-pci-setup.patch >... > Misc >... pci_proc_attach_device() no longer has any modular user. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI aer: add pci_cleanup_aer_correct_aer_statusStephen Hemminger2007-07-111-0/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Function to clear bogus correctable errors. Analog to pci_aer_uncorrect_are_status. The Marvell chips seem to start out with a bogus value that needs to be cleared. Yanmin ported it to 2.6.22-rc4 by fixing a fuzz patch applying info. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Acked-by: Zhang Yanmin <yanmin.zhang@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: fix AER driver error informationZhang, Yanmin2007-07-116-47/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Below patch fixes aer driver error information and enables aer driver although CONFIG_ACPI=n. As a matter of fact, the new patch is created from below 2 patches plus a minor patch apply fuzz fixing. Because the second patch fixed a compilation error introduced by the first patch, I merge them to facilitate bisect. 1) http://marc.info/?l=linux-kernel&m=117783233918191&w=2; 2) http://marc.info/?l=linux-mm-commits&m=118046936720790&w=2 Signed-off-by: Zhang Yanmin <yanmin.zhang@intel.com> Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: hotplug: pciehp: Fix possible race condition in writing slotKenji Kaneshige2007-07-112-90/+102
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The slot control register is modified as follows: (1) Read the register value (2) Change the value (3) Write the value to the register Those must be done atomically, otherwise writing to control register would cause an unexpected result. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: Make pcibios_add_platform_entries() return errorsMichael Ellerman2007-07-111-3/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently pcibios_add_platform_entries() returns void, but could fail, so instead have it return an int and propagate errors up to pci_create_sysfs_dev_files(). Fixes: arch/powerpc/kernel/pci_64.c: In function 'pcibios_add_platform_entries': arch/powerpc/kernel/pci_64.c:878: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result arch/powerpc/kernel/pci_32.c: In function 'pcibios_add_platform_entries': arch/powerpc/kernel/pci_32.c:1043: warning: ignoring return value of 'device_create_file', declared with attribute warn_unused_result Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: Use a weak symbol for the empty version of pcibios_add_platform_entries()Michael Ellerman2007-07-111-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I'm not sure if this is going to fly, weak symbols work on the compilers I'm using, but whether they work for all of the affected architectures I can't say. I've cc'ed as many arch maintainers/lists as I could find. But assuming they do, we can use a weak empty definition of pcibios_add_platform_entries() to avoid having an empty definition on every arch. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | | PCI: add PCI-X/PCI-Express read control interfacesPeter Oruba2007-07-112-0/+176
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch introduces an interface to read and write PCI-X / PCI-Express maximum read byte count values from PCI config space. There is a second function that returns the maximum _designed_ read byte count, which marks the maximum value for a device, since some drivers try to set MMRBC to the highest allowed value and rely on such a function. Based on patch set by Stephen Hemminger <shemminger@linux-foundation.org> Cc: Stephen Hemminger <shemminger@linux-foundation.org> Signed-off-by: Peter Oruba <peter.oruba@amd.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
generated by cgit v1.1 at 2025-01-11 07:58:46 +0000