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* [PATCH] SAA9730: Driver overhaulRalf Baechle2005-11-11
| | | | | | | | | | | | | | | | o Try to work around some of the undocumented "features" of the SAA9730 o Use netdev_priv() instead of the previous broken mechanism to allocate the private data structure. o Try to make sure we don't leak resources on exit. o No more need to call SET_MODULE_OWNER in 2.6. o Use pci_free_consistent instead of homegrown architecture-specific allocation. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> drivers/net/saa9730.c | 531 +++++++++++++++++++++++--------------------------- 1 files changed, 249 insertions(+), 282 deletions(-) Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [PATCH] SAA9730: Whitespace cleanup.Ralf Baechle2005-11-11
| | | | | | | | | | Kill trailing whitespace, replace leading whitespace with tabs. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> drivers/net/saa9730.c | 98 +++++++++++++++++++++++++------------------------- 1 files changed, 49 insertions(+), 49 deletions(-) Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [netdrvr forcedeth] phy address scan rangeAyaz Abdulla2005-11-11
| | | | | | Added phy address 0 to the phy scan. Signed-off-by: Ayaz Abdulla <aabdulla@nvidia.com>
* [netdrvr forcedeth] support for irq mitigationAyaz Abdulla2005-11-11
| | | | | | | | | This patch contains support for different modes of interrupt mitigation of forcedeth. It includes changes based on Jeff's comments. Currently, the modes are changed through module parameters since ethtool does not support something similar. Signed-off-by: Ayaz Abdulla <aabdulla@nvidia.com>
* [netdrvr forcedeth] remove superfluous rx engine stop/startAyaz Abdulla2005-11-11
| | | | Signed-off-by: Ayaz Abdulla <aabdulla@nvidia.com>
* [PATCH] gianfar mii needs to zero out the mii_bus structureKumar Gala2005-11-11
| | | | | | | | | | | To ensure that phy_mask and any future elements of the mii_bus structure are initialized use kzalloc() instead of kmalloc(). This fixes an issue in which phy_mask was not being initialized and we would skip random phy addresses when scanning. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [PATCH] s390: mail address changedFrank Pavlic2005-11-11
| | | | | | | | | | | | | | | | | | | [patch 7/7] s390: mail address changed From: Frank Pavlic <fpavlic@de.ibm.com> - mail address changed to fpavlic@de.ibm.com Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com> diffstat: lcs.c | 4 ++-- qeth_main.c | 4 ++-- qeth_mpc.c | 2 +- qeth_mpc.h | 2 +- qeth_sys.c | 2 +- qeth_tso.h | 2 +- 6 files changed, 8 insertions(+), 8 deletions(-) Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [PATCH] s390: introduce guestLan sniffer support in qethFrank Pavlic2005-11-11
| | | | | | | | | | | | | | | | | | | | [patch 6/7] s390: introduce guestLan sniffer support in qeth From: Peter Tiedemann <ptiedem@de.ibm.com> - introduce guestLan sniffer support in qeth feature allows a linux in a virtual machine guest to become a network LAN sniffer, monitoring and recording the networking traffic within an entire guestLan. Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com> diffstat: qeth.h | 2 + qeth_main.c | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ qeth_mpc.h | 11 ++++--- 3 files changed, 102 insertions(+), 4 deletions(-) Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [PATCH] s390: fix recovery failure of non-guestLAN devicesFrank Pavlic2005-11-11
| | | | | | | | | | | | | | | | | | | [patch 5/7] s390: fix recovery failure of non-guestLAN devices From: Frank Pavlic <fpavlic@de.ibm.com> - Recovery of non-guestLAN Layer 2 device failed due to trying to register the real MAC address we got from the READ_MAC adapter parameters command. We have to keep the "old" MAC address when we process the reply of a READ_MAC. Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com> diffstat: qeth.h | 12 ++++++------ qeth_main.c | 27 ++++++++++++++++----------- 2 files changed, 22 insertions(+), 17 deletions(-) Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [PATCH] s390: some more qeth fixesFrank Pavlic2005-11-11
| | | | | | | | | | | | | | | | | [patch 4/7] s390: some more qeth fixes From: Frank Pavlic <fpavlic@de.ibm.com> From: Peter Tiedemann <ptiedem@de.ibm.com> - possible race on list fixed by reset list processing after every operation - traffic hang fixed Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com> diffstat: qeth_main.c | 11 +++++++---- 1 files changed, 7 insertions(+), 4 deletions(-) Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [PATCH] s390: qeth multicast address registration fixedFrank Pavlic2005-11-11
| | | | | | | | | | | | | | | | | [patch 3/7] s390: qeth multicast address registration fixed From: Klaus Dieter Wacker <kdwacker@de.ibm.com> - when running in Layer2 mode we don't have to register the multicast IP address but only group mac address. Therefore for Layer 2 devices it is enough to go through dev->mc_list list and register these entries. Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com> diffstat: qeth_main.c | 106 +++++++++++++++++++++++++++++++++++++++++++++--------------- 1 files changed, 80 insertions(+), 26 deletions(-) Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [PATCH] s390: minor modification in qeth layer2 codeFrank Pavlic2005-11-11
| | | | | | | | | | | | | | | | | [patch 2/7] s390: minor modification in qeth layer2 code From: Frank Pavlic <fpavlic@de.ibm.com> - use qeth_layer2_send_setdelvlan_cb to check return code of a SET/DELVLAN IP Assist command. It fits better in qeth's design and mechanism of IP Assist command handling. Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com> diffstat: qeth_main.c | 40 ++++++++++++++++++++++++++-------------- 1 files changed, 26 insertions(+), 14 deletions(-) Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* [PATCH] s390: synthax checking for VIPA addresses fixedFrank Pavlic2005-11-11
| | | | | | | | | | | | | | | [patch 1/7] s390: synthax checking for VIPA addresses fixed From: Peter Tiedemann <ptiedem@de.ibm.com> - synthax checking for VIPA addresses fixed Signed-off-by: Frank Pavlic <fpavlic@de.ibm.com> diffstat: qeth.h | 65 ++++++++++++++++++++++++++++++++++++++++++++++++------------- qeth_sys.c | 6 ++--- 2 files changed, 55 insertions(+), 16 deletions(-) Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* Merge branch 'atmel'Jeff Garzik2005-11-11
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| * [PATCH] Atmel wireless updatesimon@thekelleys.org.uk2005-11-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | * Merge PCMCIA card table with new Brodowski PCMCIA id table. * Add missing entries to PCMCIA id table. * Other tweaks to conform with Documentation/driver-changes.txt (types, call request_region, etc) * Fix size of requested IO region. * Reduce printk verbosity. * Remove EXPERIMENTAL * tweak to association code - don't force shared key authentication when wep in use. Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* | [PATCH] disable DEBUG in ibmvethAnton Blanchard2005-11-11
| | | | | | | | | | | | | | | | At the moment ibmveth has DEBUG enabled which is rather verbose. Disable it. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds2005-11-11
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| * | [CIFS] Fix spaces in cifs kconfig entrySteve French2005-11-10
| | | | | | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] Reduce sparse endian warningsSteve French2005-11-10
| | | | | | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.gitSteve French2005-11-10
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| * | | [CIFS] Update CIFS change logSteve French2005-11-10
| | | | | | | | | | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | | Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.gitSteve French2005-11-10
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| * | | | [CIFS] Reserve upcall IDX value for CIFS with connector header and addSteve French2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kconfig option for CIFS upcall. Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | | | (no commit message)Steve French2005-11-09
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| * | | | Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.gitSteve French2005-11-09
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| * | | | | [CIFS] Update kconfig for cifsSteve French2005-11-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add cifs extended stats configure option and reduce experimental code. Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | | | | [CIFS] Make CONFIG_CIFS_EXPERIMENTAL depend on CONFIG_EXPERIMENTALSteve French2005-11-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It seems logical. Note that CONFIG_EXPERIMENTAL itself doesn't enable any code. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
* | | | | | [PATCH] lpfc build fixJeff Garzik2005-11-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current upstream 'allmodconfig' build is broken. This is the obvious patch... Signed-off-by: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | | | Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds2005-11-11
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| * | | | | | [TCP]: speed up SACK processingStephen Hemminger2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use "hints" to speed up the SACK processing. Various forms of this have been used by TCP developers (Web100, STCP, BIC) to avoid the 2x linear search of outstanding segments. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | [TCP]: spelling fixesStephen Hemminger2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Minor spelling fixes for TCP code. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | [TCP]: receive buffer growth limiting with mixed MTUJohn Heffner2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a patch for discussion addressing some receive buffer growing issues. This is partially related to the thread "Possible BUG in IPv4 TCP window handling..." last week. Specifically it addresses the problem of an interaction between rcvbuf moderation (receiver autotuning) and rcv_ssthresh. The problem occurs when sending small packets to a receiver with a larger MTU. (A very common case I have is a host with a 1500 byte MTU sending to a host with a 9k MTU.) In such a case, the rcv_ssthresh code is targeting a window size corresponding to filling up the current rcvbuf, not taking into account that the new rcvbuf moderation may increase the rcvbuf size. One hunk makes rcv_ssthresh use tcp_rmem[2] as the size target rather than rcvbuf. The other changes the behavior when it overflows its memory bounds with in-order data so that it tries to grow rcvbuf (the same as with out-of-order data). These changes should help my problem of mixed MTUs, and should also help the case from last week's thread I think. (In both cases though you still need tcp_rmem[2] to be set much larger than the TCP window.) One question is if this is too aggressive at trying to increase rcvbuf if it's under memory stress. Orignally-from: John Heffner <jheffner@psc.edu> Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | [TCP]: Appropriate Byte Count supportStephen Hemminger2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is an updated version of the RFC3465 ABC patch originally for Linux 2.6.11-rc4 by Yee-Ting Li. ABC is a way of counting bytes ack'd rather than packets when updating congestion control. The orignal ABC described in the RFC applied to a Reno style algorithm. For advanced congestion control there is little change after leaving slow start. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | [TCP]: add tcp_slow_start helperStephen Hemminger2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move all the code that does linear TCP slowstart to one inline function to ease later patch to add ABC support. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | [TCP]: simplify microsecond rtt samplingStephen Hemminger2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Simplify the code that comuputes microsecond rtt estimate used by TCP Vegas. Move the callback out of the RTT sampler and into the end of the ack cleanup. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
| * | | | | | [TCP]: fix congestion window update when using TSO deferalStephen Hemminger2005-11-10
| | |_|_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | TCP peformance with TSO over networks with delay is awful. On a 100Mbit link with 150ms delay, we get 4Mbits/sec with TSO and 50Mbits/sec without TSO. The problem is with TSO, we intentionally do not keep the maximum number of packets in flight to fill the window, we hold out to until we can send a MSS chunk. But, we also don't update the congestion window unless we have filled, as per RFC2861. This patch replaces the check for the congestion window being full with something smarter that accounts for TSO. Signed-off-by: Stephen Hemminger <shemminger@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* / | | | | [SPARC]: display7seg build fixAndrew Morton2005-11-11
|/ / / / / | | | | | | | | | | | | | | | | | | | | Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | | | | [PATCH] PCI: fix for Toshiba ohci1394 quirkJesse Barnes2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | After much testing and agony, I've discovered that my previous ohci1394 quirk for Toshiba laptops is not 100% reliable. It apparently fails to do the interrupt line change either correctly or in time, since in about 2 out of 5 boots, the kernel's irqdebug code will *still* disable irq 11 when the ohci1394 driver is loaded (at pci_enable_device time I think). This patch switches things around a little in the workaround. First, it removes the mdelay. I didn't see a need for it and my testing has shown that it's not necessary for the quirk to work. Secondly, instead of trying to change the interrupt line to what ACPI tells us it should be, this patch makes the quirk use the value in the PCI_INTERRUPT_LINE register. On this laptop at least, that seems to be the right thing to do, though additional testing on other laptops and/or with actual firewire devices would be appreciated. Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | [PATCH] PCI: fix namespace clashesRajesh Shah2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Rajesh Shah <rajesh.shah@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | [PATCH] PCI: Change MSI to use physical delivery mode alwaysAshok Raj2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MSI hardcoded delivery mode to use logical delivery mode. Recently x86_64 moved to use physical mode addressing to support physflat mode. With this mode enabled noticed that my eth with MSI werent working. msi_address_init() was hardcoded to use logical mode for i386 and x86_64. So when we switch to use physical mode, things stopped working. Since anyway we dont use lowest priority delivery with MSI, its always directed to just a single CPU. Its safe and simpler to use physical mode always, even when we use logical delivery mode for IPI's or other ioapic RTE's. Signed-off-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | [PATCH] PCI: drivers/pci/: small cleanupsAdrian Bunk2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch contains the following cleanups: - access.c should #include "pci.h" for getting the prototypes of it's global functions - hotplug/shpchp_pci.c: make the needlessly global function program_fw_provided_values() static Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | [PATCH] pci_ids cleanup: fix two additional IDs in bt87xGrant Coady2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pci_ids cleanup: fixup bt87x.c: two macro defined IDs missed in prior cleanup. Caught by Chun-Chung Chen <cjj@u.washington.edu>: "In the patch for bt87x.c, you seemed have missed the two occurrences of BT_DEVICE on line 897 and line 898." Signed-off-by: Grant Coady <gcoady@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | [PATCH] dlpar regression for ppc64 - probe changeJohn Rose2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch contains the driver bits for enabling DLPAR and PCI Hotplug for the new OF-based PCI probe. This functionality was regressed when the new PCI approach was introduced. Please apply if appropriate. Signed-off-by: John Rose <johnrose@austin.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | [PATCH] PCI: removed unneeded .owner field from struct pci_driverGreg Kroah-Hartman2005-11-10
| | | | | | | | | | | | | | | | | | | | Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | [PATCH] PCI: automatically set device_driver.ownerLaurent riffard2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A nice feature of sysfs is that it can create the symlink from the driver to the module that is contained in it. It requires that the device_driver.owner is set, what is not the case for many PCI drivers. This patch allows pci_register_driver to set automatically the device_driver.owner for any PCI driver. Credits to Al Viro who suggested the method. Signed-off-by: Laurent Riffard <laurent.riffard@free.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> -- drivers/ide/setup-pci.c | 12 +++++++----- drivers/pci/pci-driver.c | 9 +++++---- include/linux/ide.h | 3 ++- include/linux/pci.h | 10 ++++++++-- 4 files changed, 22 insertions(+), 12 deletions(-)
* | | | | [PATCH] pci-driver: store_new_id() not inlineRandy Dunlap2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | store_new_id() should not be (and cannot be) inline; the function pointer is stored in a device_attribute table. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | [PATCH] PCI: NCR 53c810 quirkIvan Kokshaysky2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the PPC fixup for old NCR 810 controllers to generic quirks - it's needed for Alpha, x86 and other architectures that use setup-bus.c. Thanks to Jay Estabrook for pointing out the issue. Signed-off-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | [PATCH] PCI: Fix VIA 686 PCI quirk namesMeelis Roos2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The quirk names for VIA 686 are mistyped in 2.6.14 (686 vs 868). S3 868 influence? :) Here is a patch to correct them. Signed-off-by: Meelis Roos <mroos@linux.ee> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | [PATCH] pciehp: fix handling of power faults during hotplugrajesh.shah@intel.com2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current pciehp implementation reports a power-fail error even if the condition has cleared by the time the corresponding interrupt handling code gets a chance to run. This patch fixes this problem. Signed-off-by: Rajesh Shah <rajesh.shah@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | | | [PATCH] pciehp: clean-up how we request control of hotplug hardwarerajesh.shah@intel.com2005-11-10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch further tweaks how we request control of hotplug controller hardware from BIOS. We first search the ACPI namespace corresponding to a specific hotplug controller looking for an _OSC or OSHP method. On failure, we successively move to the ACPI parent object, till we hit the highest level host bridge in the hierarchy. This allows for different types of BIOS's which place the _OSC/OSHP methods at various places in the acpi namespace, while still not encroaching on the namespace of some other root level host bridge. This patch also introduces a new load time option (pciehp_force) that allows us to bypass all _OSC/OSHP checking. Not supporting these methods seems to be be the most common ACPI firmware problem we've run into. This will still _not_ allow the pciehp driver to work correctly if the BIOS really doesn't support pciehp (i.e. if it doesn't generate a hotplug interrupt). Use this option with caution. Some BIOS's may deliberately not build any _OSC/OSHP methods to make sure it retains control the hotplug hardware. Using the pciehp_force parameter for such systems can lead to two separate entities trying to control the same hardware. Signed-off-by: Rajesh Shah <rajesh.shah@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
generated by cgit v1.2.2 (git 2.25.0) at 2025-09-01 06:31:39 -0400