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path: root/drivers/pci/quirks.c
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2009-04-06PCI: don't corrupt enable_cnt when doing manual resource alignmentYuji Shimada
This patch fixes breakage of of enable_cnt in quirk_resource_alignment. Currently, quirk_resource_alignment calls pci_disable_device. pci_disable_device decrements enable_cnt, so that enable_cnt becomes -1. The patch disables memory decoding, writing command register directly. So enable_cnt is not broken. Signed-off-by: Yuji Shimada <shimada-yxb@necst.nec.co.jp> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-04-06PCI: SR-IOV quirk for Intel 82576 NICYu Zhao
If BIOS doesn't allocate resources for the SR-IOV BARs, zero the Flash BAR and program the SR-IOV BARs to use the old Flash Memory Space. Please refer to Intel 82576 Gigabit Ethernet Controller Datasheet section 7.9.2.14.2 for details. http://download.intel.com/design/network/datashts/82576_Datasheet.pdf Signed-off-by: Yu Zhao <yu.zhao@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-03-30PCI: fix HT MSI mapping fixYinghai Lu
Impact: fix bug This patch reworks the nv_msi_ht_cap_quirk() and will only try to avoid to enable ht_msi on device following that root dev, and don't touch that root dev, but only do that trick with end_device on the chain. Reported-by: Prakash Punnoor <prakash@punnoor.de> Tested-by: Prakash Punnoor <prakash@punnoor.de> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-03-26PCI: don't enable too much HT MSI mappingYinghai Lu
Impact: fix bug Prakash reported that his c51-mcp51 system ondie sound card doesn't work MSI but if he hack out the HT-MSI on mcp51, the MSI will work well with sound card. This patch reworks nv_msi_ht_cap_quirk() and will only avoid enabling ht_msi on devices following that root device. Reported-by: Prakash Punnoor <prakash@punnoor.de> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-03-20PCI: Compaq Evo D510 SMBus quirk using USB instead of VGADavid O'Shea
On the Compaq Evo D510 SFF/CMT, a PCI quirk activated the SMBus device based on detection of the on-board VGA controller, but the on-board VGA is disabled if an AGP card is inserted, so look for one of the USB controllers instead. Signed-off-by: David O'Shea <dcoshea@hotmail.com> Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-03-20PCI: allow assignment of memory resources with a specified alignmentYuji Shimada
This patch allows memory resources to be assigned with a specified alignment at boot-time or run-time. The patch is useful when we use PCI pass-through, because page-aligned memory resources are required to securely share PCI resources with guest drivers. If you want to assign the resource at boot time, please set "pci=resource_alignment=" boot parameter. This is format of "pci=resource_alignment=" boot parameter: [<order of align>@][<domain>:]<bus>:<slot>.<func>[; ...] Specifies alignment and device to reassign aligned memory resources. If <order of align> is not specified, PAGE_SIZE is used as alignment. PCI-PCI bridge can be specified, if resource windows need to be expanded. This is example: pci=resource_alignment=20@07:00.0;18@0f:00.0;00:1d.7 If you want to assign the resource at run-time, please set "/sys/bus/pci/resource_alignment" file, and hot-remove the device and hot-add the device. For this purpose, fakephp or PCI hotplug interfaces can be used. The format of "/sys/bus/pci/resource_alignment" file is the same with boot parameter. You can use "," instead of ";". For example: # cd /sys/bus/pci # echo -n 20@12:00.0 > resource_alignment # echo 1 > devices/0000:12:00.0/remove # echo 1 > rescan Reviewed-by: Alex Chiang <achiang@hp.com> Reviewed-by: Yu Zhao <yu.zhao@intel.com> Signed-off-by: Yuji Shimada <shimada-yxb@necst.nec.co.jp> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-03-19PCI quirk: don't mark one netmos as class otherJiri Slaby
Let it stay as serial, since it doesn't have subdevice in the form of 0x00PS. Signed-off-by: Jiri Slaby <jirislaby@gmail.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-03-12pci: Fix typo in message while disabling HT MSI mappingPrakash Punnoor
"Enabling" should read "Disabling" Signed-off-by: Prakash Punnoor <prakash@punnoor.de> Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
2009-03-12pci: don't disable too many HT MSI mappingPrakash Punnoor
Prakash's system needs MSI disabled on some bridges, but not all. This seems to be the minimal fix for 2.6.29, but should be replaced during 2.6.30. Signed-off-by: Prakash Punnoor <prakash@punnoor.de> Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
2009-03-12PCI: Add PCI quirk to disable L0s ASPM state for 82575 and 82598Alexander Duyck
This patch is intended to disable L0s ASPM link state for 82598 (ixgbe) parts due to the fact that it is possible to corrupt TX data when coming back out of L0s on some systems. The workaround had been added for 82575 (igb) previously, but did not use the ASPM api. This quirk uses the ASPM api to prevent the ASPM subsystem from re-enabling the L0s state. Instead of adding the fix in igb to the ixgbe driver as well it was decided to move it into a pci quirk. It is necessary to move the fix out of the driver and into a pci quirk in order to prevent the issue from occuring prior to driver load to handle the possibility of the device being passed to a VM via direct assignment. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> CC: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
2009-02-26PCI: AMD 813x B2 devices do not need boot interrupt quirkStefan Assmann
Turns out that the new AMD 813x devices do not need the quirk_disable_amd_813x_boot_interrupt quirk to be run on them. If it is, no interrupts are seen on the PCI-X adapter. From: Stefan Assmann <sassmann@novell.com> Reported-by: Jamie Wellnitz <Jamie.Wellnitz@emulex.com> Tested-by: Jamie Wellnitz <Jamie.Wellnitz@emulex.com> Cc: stable <stable@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Jesse Barnes <jbarnes@hobbes.lan>
2009-02-24PCI: don't enable too many HT MSI mappingsYinghai Lu
Prakash reported that his c51-mcp51 ondie sound card doesn't work with MSI. But if he hacks out the HT-MSI quirk, MSI works fine. So this patch reworks the nv_msi_ht_cap_quirk(). It will now only enable ht_msi on own its root device, avoiding enabling it on devices following that root dev. Reported-by: Prakash Punnoor <prakash@punnoor.de> Tested-by: Prakash Punnoor <prakash@punnoor.de> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@hobbes.lan>
2009-02-18PCI quirk: enable MSI on 8132Yinghai Lu
David reported that LSI SAS doesn't work with MSI. It turns out that his BIOS doesn't enable it, but the HT MSI 8132 does support HT MSI. Add quirk to enable it Cc: stable@kernel.org Reported-by: David Lang <david@lang.hm> Signed-off-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-01-07PCI quirks: piix3: warn softer about enabling passive releaseAdam Jackson
All the other quirks are dev_info() not dev_err(), this one isn't special. This makes 'quiet' boot in qemu really quiet. Signed-off-by: Adam Jackson <ajax@redhat.com> Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Cc: Jeff Garzik <jeff@garzik.org> Cc: Tejun Heo <htejun@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-01-07PCI: extend on the ICH motherboard IO decode quirk listLinus Torvalds
This adds more LPC controller IO range decode quirks for the Intel ICH family of chipsets. They differ a bit between the older ICH6 chipset and the more modern layout of the ICH7-ICH10 chipsets. This patch just prints out the IO decode information found by the quirks, but eventually we may want to add them to the resource tree, in order to know to avoid allocating things over them. That's especially true if it turns out that any firmware ends up putting the magic motherboard resources in an address range that we use for dynamic allocations (ie above PCIBIOS_MIN_IO, which is 0x1000 on x86). Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Rafael J. Wysocki <rjw@sisk.pl> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Greg KH <greg@kroah.com> Cc: Frans Pop <elendil@planet.nl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-01-07PCI: fixup whitespace in quirks.cJesse Barnes
Had a space before tab in do_fixups, prototype wasn't wrapped properly either. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-12-23Merge branches 'x86/apic', 'x86/cleanups', 'x86/cpufeature', ↵Ingo Molnar
'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/detect-hyper', 'x86/doc', 'x86/dumpstack', 'x86/early-printk', 'x86/fpu', 'x86/idle', 'x86/io', 'x86/memory-corruption-check', 'x86/microcode', 'x86/mm', 'x86/mtrr', 'x86/nmi-watchdog', 'x86/pat2', 'x86/pci-ioapic-boot-irq-quirks', 'x86/ptrace', 'x86/quirks', 'x86/reboot', 'x86/setup-memory', 'x86/signal', 'x86/sparse-fixes', 'x86/time', 'x86/uv' and 'x86/xen' into x86/core
2008-11-20pci: Added quirk to disable msi for MCP55 NIC on Asus P5N32-SLI PremiumAndreas Petlund
Signed-off-by: Andreas Petlund <andreas@petlund.no> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-11-03PCI: fix VPD limit quirk for Broadcom 5708SYu Zhao
VPD quirks need to be called after the VPD capability is initialized. Since VPD initialization now runs after pci_fixup_header (due to the capabilities consolidation), VPD quirks should be done at pci_fixup_final stage correspondingly. Tested-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Yu Zhao <yu.zhao@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-10-28Merge commit 'v2.6.28-rc2' into x86/pci-ioapic-boot-irq-quirksIngo Molnar
2008-10-24x86/PCI: build failure at x86/kernel/pci-dma.c with !CONFIG_PCIFenghua Yu
On Thu, Oct 23, 2008 at 04:09:52PM -0700, Alexander Beregalov wrote: > arch/x86/kernel/built-in.o: In function `iommu_setup': > pci-dma.c:(.init.text+0x36ad): undefined reference to `forbid_dac' > pci-dma.c:(.init.text+0x36cc): undefined reference to `forbid_dac' > pci-dma.c:(.init.text+0x3711): undefined reference to `forbid_dac This patch partially reverts a patch to add IOMMU support to ia64. The forbid_dac variable was incorrectly moved to quirks.c, which isn't built when PCI is disabled. Tested-by: "Alexander Beregalov" <a.beregalov@gmail.com> Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-10-21Merge branch 'master' of ↵David Woodhouse
master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: drivers/pci/dmar.c
2008-10-20PCI: remove #ifdef DEBUG around dev_dbg callJesse Barnes
No longer needed since we don't use the function symbol stuff anymore. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-10-20PCI: use %pF instead of print_fn_descriptor_symbol() in quirks.cYinghai Lu
Use %pF instead of print_fn_descriptor_symbol() in quirks.c to get the name of the hook we're calling. Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-10-20PCI: allow quirks to be compiled outThomas Petazzoni
This patch adds the CONFIG_PCI_QUIRKS option which allows to remove all the PCI quirks, which are not necessarily used on embedded systems when PCI is working properly. As this is a size-reduction option, it depends on CONFIG_EMBEDDED. It allows to save almost 12 kilobytes of kernel code: text data bss dec hex filename 1287806 123596 212992 1624394 18c94a vmlinux.old 1275854 123596 212992 1612442 189a9a vmlinux -11952 0 0 -11952 -2EB0 +/- This patch has originally been written by Zwane Mwaikambo <zwane@arm.linux.org.uk> and is part of the Linux Tiny project. Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-10-18intel-iommu: IA64 supportFenghua Yu
The current Intel IOMMU code assumes that both host page size and Intel IOMMU page size are 4KiB. The first patch supports variable page size. This provides support for IA64 which has multiple page sizes. This patch also adds some other code hooks for IA64 platform including DMAR_OPERATION_TIMEOUT definition. [dwmw2: some cleanup] Signed-off-by: Fenghua Yu <fenghua.yu@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-10-16{pci,pnp} quirks.c: don't use deprecated print_fn_descriptor_symbol()Linus Torvalds
I dunno how this missed Bjorn and his quest to use %pF in commit c80cfb0406c01bb5da91bfe30f5cb1fd96831138 ("vsprintf: use new vsprintf symbolic function pointer format"), but it did. So use %pF in the two remaining places that still tried to print out function pointers by hand. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-07PCI: Limit VPD length for Broadcom 5708SDean Hildebrand
BCM5706S wont work correctly unless VPD length truncated to 128 Signed-off-by: Dean Hildebrand <dhildeb@us.ibm.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-08-07PCI: add Broadcom 5708S to VPD length quirkEric Dumazet
BCM5708S wont work correctly unless VPD length truncated to 128 Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-07-28PCI: add D3 power state avoidance quirkAlan Cox
Libata has some hacks to deal with certain controllers going silly in D3 state. The right way to handle this is to keep a PCI device flag for such devices. That can then be generalised for no ATA devices with power problems. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-07-18x86, pci: introduce config option for pci reroute quirks (was: [PATCH 0/3] ↵Stefan Assmann
Boot IRQ quirks for Broadcom and AMD/ATI) This is against linux-2.6-tip, branch pci-ioapic-boot-irq-quirks. From: Stefan Assmann <sassmann@suse.de> Subject: Introduce config option for pci reroute quirks The config option X86_REROUTE_FOR_BROKEN_BOOT_IRQS is introduced to enable (or disable) the redirection of the interrupt handler to the boot interrupt line by default. Depending on the existence of interrupt masking / threaded interrupt handling in the kernel (vanilla, rt, ...) and the maturity of the rerouting patch, users can enable or disable the redirection by default. This means that the reroute quirk can be applied to any kernel without changing it. Interrupt sharing could be increased if this option is enabled. However this option is vital for threaded interrupt handling, as done by the RT kernel. It should simplify the consolidation with the RT kernel. The option can be overridden by either pci=ioapicreroute or pci=noioapicreroute. Signed-off-by: Stefan Assmann <sassmann@suse.de> Signed-off-by: Olaf Dabrunz <od@suse.de> Cc: Jesse Barnes <jbarnes@virtuousgeek.org> Cc: Jon Masters <jonathan@jonmasters.org> Cc: Ihno Krumreich <ihno@suse.de> Cc: Sven Dietrich <sdietrich@suse.de> Cc: Daniel Gollub <dgollub@suse.de> Cc: Felix Foerster <ffoerster@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-18Merge branch 'linus' into x86/pci-ioapic-boot-irq-quirksIngo Molnar
Conflicts: drivers/pci/quirks.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-16Merge branch 'linux-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (72 commits) Revert "x86/PCI: ACPI based PCI gap calculation" PCI: remove unnecessary volatile in PCIe hotplug struct controller x86/PCI: ACPI based PCI gap calculation PCI: include linux/pm_wakeup.h for device_set_wakeup_capable PCI PM: Fix pci_prepare_to_sleep x86/PCI: Fix PCI config space for domains > 0 Fix acpi_pm_device_sleep_wake() by providing a stub for CONFIG_PM_SLEEP=n PCI: Simplify PCI device PM code PCI PM: Introduce pci_prepare_to_sleep and pci_back_from_sleep PCI ACPI: Rework PCI handling of wake-up ACPI: Introduce new device wakeup flag 'prepared' ACPI: Introduce acpi_device_sleep_wake function PCI: rework pci_set_power_state function to call platform first PCI: Introduce platform_pci_power_manageable function ACPI: Introduce acpi_bus_power_manageable function PCI: make pci_name use dev_name PCI: handle pci_name() being const PCI: add stub for pci_set_consistent_dma_mask() PCI: remove unused arch pcibios_update_resource() functions PCI: fix pci_setup_device()'s sprinting into a const buffer ... Fixed up conflicts in various files (arch/x86/kernel/setup_64.c, arch/x86/pci/irq.c, arch/x86/pci/pci.h, drivers/acpi/sleep/main.c, drivers/pci/pci.c, drivers/pci/pci.h, include/acpi/acpi_bus.h) from x86 and ACPI updates manually.
2008-07-13PCI quirks: call boot IRQ quirks at end of device init and during resumeOlaf Dabrunz
It is not necessary to call boot IRQ quirks before the BARs of the bridges are probed. The normal case is to use DECLARE_PCI_FIXUP_FINAL, so we use this instead now. After a resume, we need to call the quirks again. Signed-off-by: Olaf Dabrunz <od@suse.de> Signed-off-by: Stefan Assmann <sassmann@suse.de> Cc: Jon Masters <jonathan@jonmasters.org> Cc: Olaf Dabrunz <od@suse.de> Cc: Stefan Assmann <sassmann@suse.de> Cc: Ihno Krumreich <ihno@suse.de> Cc: Sven Dietrich <sdietrich@suse.de> Cc: Daniel Gollub <dgollub@suse.de> Cc: Felix Foerster <ffoerster@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-13PCI quirks: disable AMD/ATI legacy boot interrupt generationOlaf Dabrunz
Add quirks for several AMD/ATI chipsets to prevent generation of legacy boot interrupts. Integrates a separate older quirk to make IO-APIC mode work on AMD 8131 rev. A0 and B0, which was due to an AMD erratum. Signed-off-by: Olaf Dabrunz <od@suse.de> Signed-off-by: Stefan Assmann <sassmann@suse.de> Cc: Jon Masters <jonathan@jonmasters.org> Cc: Olaf Dabrunz <od@suse.de> Cc: Stefan Assmann <sassmann@suse.de> Cc: Ihno Krumreich <ihno@suse.de> Cc: Sven Dietrich <sdietrich@suse.de> Cc: Daniel Gollub <dgollub@suse.de> Cc: Felix Foerster <ffoerster@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-13PCI quirks: add quirk to disable boot interrupt generation on broadcom HT1000Olaf Dabrunz
Signed-off-by: Olaf Dabrunz <od@suse.de> Signed-off-by: Stefan Assmann <sassmann@suse.de> Cc: Jon Masters <jonathan@jonmasters.org> Cc: Olaf Dabrunz <od@suse.de> Cc: Stefan Assmann <sassmann@suse.de> Cc: Ihno Krumreich <ihno@suse.de> Cc: Sven Dietrich <sdietrich@suse.de> Cc: Daniel Gollub <dgollub@suse.de> Cc: Felix Foerster <ffoerster@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08pci, acpi: reroute PCI interrupt to legacy boot interrupt equivalent, ↵Bernhard Walle
warning fix This patch just fixes the compiler warning: drivers/pci/quirks.c: In function ‘quirk_reroute_to_boot_interrupts_intel’: drivers/pci/quirks.c:1375: warning: unused variable ‘i’ Signed-off-by: Bernhard Walle <bwalle@suse.de> Cc: sassmann@suse.de Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08pci, acpi: reroute PCI interrupt to legacy boot interrupt equivalentStefan Assmann
Some chipsets (e.g. intel 6700PXH) generate a legacy INTx when the IRQ entry in the chipset's IO-APIC is masked (as, e.g. the RT kernel does during interrupt handling). On chipsets where this INTx generation cannot be disabled, we reroute the valid interrupts to their legacy equivalent to get rid of spurious interrupts that might otherwise bring down (vital) interrupt lines through spurious interrupt detection in note_interrupt(). This patch benefited from discussions with Alexander Graf, Torsten Duwe, Ihno Krumreich, Daniel Gollub, Hannes Reinecke. The conclusions we drew and the patch itself are the authors' responsibility alone. Signed-off-by: Stefan Assmann <sassmann@suse.de> Signed-off-by: Olaf Dabrunz <od@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-08pci: add quirk to disable boot interrupt generation on intel 6300ESBStefan Assmann
Add a quirk to disable legacy boot interrupt generation on intel devices that support disabling it. This patch benefited from discussions with Alexander Graf, Torsten Duwe, Ihno Krumreich, Daniel Gollub, Hannes Reinecke. The conclusions we drew and the patch itself are the authors' responsibility alone. Signed-off-by: Stefan Assmann <sassmann@suse.de> Signed-off-by: Olaf Dabrunz <od@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-07-04pci: VT3336 can't do MSI eitherTejun Heo
It seems VT3336 can't do msi either as with its bro 3351. Disable it. Reported in the following SUSE bug. https://bugzilla.novell.com/show_bug.cgi?id=300001 Signed-off-by: Tejun Heo <tj@kernel.org> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-02PCI: Limit VPD read/write lengths for Broadcom 5706, 5708, 5709 rev.Benjamin Li
For Broadcom 5706, 5708, 5709 rev. A nics, any read beyond the VPD end tag will hang the device. This problem was initially observed when a vpd entry was created in sysfs ('/sys/bus/pci/devices/<id>/vpd'). A read to this sysfs entry will dump 32k of data. Reading a full 32k will cause an access beyond the VPD end tag causing the device to hang. Once the device is hung, the bnx2 driver will not be able to reset the device. We believe that it is legal to read beyond the end tag and therefore the solution is to limit the read/write length. A majority of this patch is from Matthew Wilcox who gave code for reworking the PCI vpd size information. A PCI quirk added for the Broadcom NIC's to limit the read/write's. Signed-off-by: Benjamin Li <benli@broadcom.com> Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-06-10PCI: unhide the SMBus on the Compaq Deskpro ENKrzysztof Helt
This patch unhides the SMBus on Compaq Deskpro EN SFF P667 with the Intel 815E chipset. Unhiding it reveals a THMC51 hardware monitoring chip. Jean Delvare has checked that this machine has no ACPI magic touching the SMBus nor the hardware monitoring chip, so this should be safe. The patch was tested on Fedora Core 9 with 2.6.25.4 kernel. Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl> Tested-by: Rafał Haładuda <rh1985@wp.pl> CC: Jean Delvare <khali@linux-fr.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-06-10PCI: Unhide the SMBus on the Compaq Evo D510Jean Delvare
One more machine with a hidden Intel SMBus. Unhiding it reveals a SMSC EMC6D100 hardware monitoring chip. I have checked that this machine has no ACPI magic touching the SMBus nor the hardware monitoring chip, so this should be safe. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-06-10Suspend/Resume bug in PCI layer wrt quirksRafael J. Wysocki
Some quirks should be called with interrupt disabled, we can't directly call them in .resume_early. Also the patch introduces pci_fixup_resume_early and pci_fixup_suspend, which matches current device core callbacks (.suspend/.resume_early). TBD: Somebody knows why we need quirk resume should double check if a quirk should be called in resume or resume_early. I changed some per my understanding, but can't make sure I fixed all. Signed-off-by: Shaohua Li <shaohua.li@intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-05-15Clean up 'print_fn_descriptor_symbol()' typesLinus Torvalds
Everybody wants to pass it a function pointer, and in fact, that is what you _must_ pass it for it to make sense (since it knows that ia64 and ppc64 use descriptors for function pointers and fetches the actual address from there). So don't make the argument be a 'unsigned long' and force everybody to add a cast. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-05-13PCI: enable nv_msi_ht_cap_quirk for ALi bridgesBjörn Krombholz
This applies the NVidia MSI enabled flag for HT capable devices quirk to ALi bridges as well. As described in more detail in http://bugzilla.kernel.org/show_bug.cgi?id=10667 this is required for my board which is using an nForce 3 250Gb chipset with an ALi M1695 northbridge. It fixes a regression introduced in 2.6.24 that made the internal NIC of the board unusable (MSI initialisation of the NIC but disabled MSI on the northbridge devices. Signed-off-by: Björn Krombholz <fox.box@gmail.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-04-20PCI: Update VIA CX700 quirkTim Yamin
This follows up 53a9bf4267b8b1f958dbeb7c8c1ef21c82229b71. Some newer CX700 BIOSes from our vendor have PCI Bus Parking disabled but PCI Master read caching enabled. This creates problems such as system freezing when both the network controller and the USB controller are active and one of them is pretty busy (e.g. heavy network traffic). This patch separates the checks and both the bus parking and the read caching are disabled independently if either is enabled by the BIOS. Signed-off-by: Tim Yamin <tim.yamin@zonbu.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-04-20PCI: simplify quirk debug outputBjorn Helgaas
print_fn_descriptor_symbol() prints the address if we don't have a symbol, so no need to print both. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-03-28pci: revert SMBus unhide on HP Compaq nx6110Jean Delvare
This reverts commit 3c0a654e390d00fef9d8faed758f5e1e8078adb5 and fixes kernel bug #10245: http://bugzilla.kernel.org/show_bug.cgi?id=10245 The HP Compaq nc6120 has the same PCI sub-device ID as the nx6110, and the SMBus is used by ACPI for thermal management on the nc6120, so Linux should not attach a native driver to it. This means that this quirk is unsafe and has to be removed. I also added a comment to help developers realize that adding new IDs to this SMBus unhiding quirk table should be done only with great care, and in particular only after checking that ACPI is not making use of the SMBus. Signed-off-by: Jean Delvare <khali@linux-fr.org> Cc: Tomasz Koprowski <tomek@koprowski.org> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-03-04PCI: consolidate duplicated MSI enable functionsBjorn Helgaas
Two recent patches added basically the same code to turn on HT MSI mapping: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=6bae1d96c6d7dde078994f6cb98235fd46f8736b http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=9dc625e72309e1c919ea3e7f51d0ffca96123787 There's no need to have both, so this patch removes one copy. Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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