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* Add support for VT6415 PCIE PATA IDE Host ControllerZlatko Calusic2009-02-181-1/+3
| | | | | Signed-off-by: Zlatko Calusic <zlatko.calusic@iskon.hr> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* sata_nv: give up hardreset on nf2Tejun Heo2009-02-171-6/+8
| | | | | | | | | | Kernel bz#12176 reports that nf2 hardreset simply doesn't work. Give up. Argh... Signed-off-by: Tejun Heo <tj@kernel.org> Cc: Robert Hancock <hancockr@shaw.ca> Reported-by: Saro <saro_v@hotmail.it> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata-sff: fix 32-bit PIO ATAPI regressionSergei Shtylyov2009-02-171-7/+21
| | | | | | | | | | | | | | | | | Commit 871af1210f13966ab911ed2166e4ab2ce775b99d (libata: Add 32bit PIO support) has caused all kinds of errors on the ATAPI devices, so it has been empirically proven that one shouldn't try to read/write an extra data word when a device is not expecting it already. "Don't do it then"; however, still use a chance to do 32-bit read/write one last time when there are exactly 3 trailing bytes. Oh, and stop pointlessly swapping the bytes to and fro on big-endian machines by using io*_rep() accessors which shouldn't byte-swap. This patch should fix the kernel.org bug #12609. Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* Fix my email address in qd65xx.[ch]/pata_qdi.cSamuel Thibault2009-02-041-1/+1
| | | | | | | | The @fnac.net will be shut down within a couple of months, so fix my email address. Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* libata: implement HORKAGE_1_5_GBPS and apply it to WD My BookTejun Heo2009-02-031-0/+41
| | | | | | | | | | | | | | | | | | | | | 3Gbps is often much more prone to transmission failures. It's usually okay to let EH handle speed down after transmission failures but some WD My Book drives completely shutdown after certain transmission failures and after it only power cycling can revive them. Combined with the fact that external drives often end up with cable assembly which is longer than usual and more likely to have intervening gender, this makes these drives very likely to shutdown under certain configurations virtually rendering them unusable. This patch implements HOARKGE_1_5_GBPS and applies it to WD My Book such that 1.5Gbps is forced once the device is identified. Please take a look at the following bz for related reports. http://bugzilla.kernel.org/show_bug.cgi?id=9913 Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: add no penalty retry request for EH device handling routinesTejun Heo2009-02-031-1/+5
| | | | | | | | | | | | Let -EAGAIN from EH device handling routines trigger EH retry without consuming its tries count. This will be used to implement link SPD horkage which requires hardreset to adjust SPD without affecting other EH decisions. As it bypasses the forward progress guarantee provided by the tries count, the requester is responsible for ensuring forward progress. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: improve probe failure handlingTejun Heo2009-02-031-0/+38
| | | | | | | | | | | | | | | | | | | | When link is flaky at high speed, it isn't uncommon for a device to repeatedly fail probing sequence early after successfully negotiating high link speed. This often leads to consecutive hotplug events without successful probing. This patch improves libata EH such that it remembers probing trials and if there have been more than two unsuccessful trials in the past 60 seconds, slows down link speed to 1.5Gbps. As link speed negotiation is the duty of the PHY layer proper, the goal of this fallback mechanism is to provide the last resort when everything else fails, which unfortunately happens not too infrequently, so no fancy 6->3->1.5 speeding down or highest successful transmission speed seen kind of logics (yet). Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: add @spd_limit to sata_down_spd_limit()Tejun Heo2009-02-034-12/+27
| | | | | | | | | Add @spd_limit to sata_down_spd_limit() so that the caller can specify the SPD limit it wants. This parameter doesn't get in the way even when it's too low. The closest possible limit is applied. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: clear dev->ering in smarter wayTejun Heo2009-02-032-2/+9
| | | | | | | | | | | | | | | | | | | | | dev->ering used to be cleared together with the rest of ata_device in ata_dev_init() which is called whenever a probing event occurs. dev->ering is about to be used to track probing failures so it needs to remain persistent over multiple porbing events. This patch achieves this by doing the following. * Instead of CLEAR_OFFSET, define CLEAR_BEGIN and CLEAR_END and only clear between BEGIN and END. ering is moved after END. The split of persistent area is to allow hotter items remain at the head. * ering is explicitly cleared on ata_dev_disable() and when device attach succeeds. So, ering is persistent throug a device's life time (unless explicitly cleared of course) and also through periods inbetween disablement of an attached device and successful detection of the next one. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: check onlineness before using SPD in sata_down_spd_limit()Tejun Heo2009-02-031-3/+8
| | | | | | | | | sata_down_spd_limit() should check whether the link is online before using the SPD value to determine how to limit the link speed. Factor out onlineness test and test it from sata_down_spd_limit(). Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: move ata_dev_disable() to libata-eh.cTejun Heo2009-02-033-13/+22
| | | | | | | | ata_dev_disable() is about to be more tightly integrated into EH logic. Move it to libata-eh.c. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: fix EH device failure handlingTejun Heo2009-02-031-2/+3
| | | | | | | | | | | | | | | The dev->pio_mode > XFER_PIO_0 test is there to avoid unnecessary speed down warning messages but it accidentally disabled SATA link spd down during configuration phase after reset where PIO mode is always zero. This patch fixes the problem by moving the test where it belongs. This makes libata probing sequence behave better when the connection is flaky at higher link speeds which isn't too uncommon for eSATA devices. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sata_nv: ck804 has borked hardreset tooTejun Heo2009-02-031-1/+6
| | | | | | | | | | While playing with nvraid, I found out that rmmoding and insmoding often trigger hardreset failure on the first port (the second one was always okay). Seriously, how diverse can you get with hardreset behaviors? Anyways, make ck804 use noclassify variant too. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: fix kernel-doc warningsRandy Dunlap2009-02-032-2/+2
| | | | | | | | | | Fix libata kernel-doc warnings: Warning(linux-next-20090120//drivers/ata/libata-core.c:4720): Excess function parameter 'dev' description in 'ata_qc_new' Warning(linux-next-20090120//drivers/ata/libata-scsi.c:428): No description found for parameter 'ap' Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* ahci: add a module parameter to ignore the SSS flags for async scanningArjan van de Ven2009-02-031-1/+8
| | | | | | | | | | | | The SSS flag, which directs the OS to spin up one disk at a time to not have the PSU blow out, sometimes gets set even when not needed. The effect of this is a longer-than-needed boot time. This patch adds a module parameter that makes the driver ignore SSS at least as far as the parallel scan during boot is concerned... Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sata_mv: Fix chip type for Hightpoint RocketRaid 1740/1742Mark Lord2009-02-031-2/+2
| | | | | | | | | | | Fix chip type for the Highpoint RocketRAID 1740 and 1742 PCI cards. These really do have Marvell 6042 chips on them, rather than the 5081 chip. Confirmed by multiple (two) users (for the 1740), and by examining the product photographs from Highpoint's web site. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* [libata] sata_sil: Fix compilation error with libata debugging enabledPasi Kärkkäinen2009-02-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | I tried compiling 2.6.29-rc1 and 2.6.29-rc3 with libata debugging enabled and got the following error: CC [M] drivers/ata/sata_sil.o drivers/ata/sata_sil.c: In function 'sil_fill_sg': drivers/ata/sata_sil.c:327: error: 'pi' undeclared (first use in this function) drivers/ata/sata_sil.c:327: error: (Each undeclared identifier is reported only once drivers/ata/sata_sil.c:327: error: for each function it appears in.) make[2]: *** [drivers/ata/sata_sil.o] Error 1 make[1]: *** [drivers/ata] Error 2 make: *** [drivers] Error 2 include/linux/libata.h has the following enabled: #define ATA_DEBUG #define ATA_VERBOSE_DEBUG #define ATA_IRQ_TRAP This fixes the compilation. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sata_sil: Fix build breakageAlexander Beregalov2009-01-301-0/+1
| | | | | | | | | | | | | | Commit e57db7b (SATA Sil: Blacklist system that spins off disks during ACPI power off) breaks build like the following, in both cases when CONFIG_DMI set or not. drivers/ata/sata_sil.c: In function 'sil_broken_system_poweroff': drivers/ata/sata_sil.c:713: error: implicit declaration of function 'dmi_first_match' drivers/ata/sata_sil.c:713: warning: initialization makes pointer from integer without a cast sata_sil.c should include dmi.h Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'hibern_fixes' of ↵Linus Torvalds2009-01-274-4/+118
|\ | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev * 'hibern_fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: SATA PIIX: Blacklist system that spins off disks during ACPI power off SATA Sil: Blacklist system that spins off disks during ACPI power off SATA AHCI: Blacklist system that spins off disks during ACPI power off SATA: Blacklisting of systems that spin off disks during ACPI power off DMI: Introduce dmi_first_match to make the interface more flexible Hibernation: Introduce system_entering_hibernation
| * SATA PIIX: Blacklist system that spins off disks during ACPI power offRafael J. Wysocki2009-01-271-0/+34
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some notebooks from HP have the problem that their BIOSes attempt to spin down hard drives before entering ACPI system states S4 and S5. This leads to a yo-yo effect during system power-off shutdown and the last phase of hibernation when the disk is first spun down by the kernel and then almost immediately turned on and off by the BIOS. This, in turn, may result in shortening the disk's life times. To prevent this from happening we can blacklist the affected systems using DMI information. Blacklist HP 2510p that uses the ata_piix driver. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * SATA Sil: Blacklist system that spins off disks during ACPI power offRafael J. Wysocki2009-01-271-1/+35
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some notebooks from HP have the problem that their BIOSes attempt to spin down hard drives before entering ACPI system states S4 and S5. This leads to a yo-yo effect during system power-off shutdown and the last phase of hibernation when the disk is first spun down by the kernel and then almost immediately turned on and off by the BIOS. This, in turn, may result in shortening the disk's life times. To prevent this from happening we can blacklist the affected systems using DMI information. Blacklist HP nx6325 that uses the sata_sil driver. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * SATA AHCI: Blacklist system that spins off disks during ACPI power offRafael J. Wysocki2009-01-271-0/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some notebooks from HP have the problem that their BIOSes attempt to spin down hard drives before entering ACPI system states S4 and S5. This leads to a yo-yo effect during system power-off shutdown and the last phase of hibernation when the disk is first spun down by the kernel and then almost immediately turned on and off by the BIOS. This, in turn, may result in shortening the disk's life times. To prevent this from happening we can blacklist the affected systems using DMI information. Blacklist HP nx6310 that uses the AHCI driver. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
| * SATA: Blacklisting of systems that spin off disks during ACPI power offRafael J. Wysocki2009-01-271-3/+17
| | | | | | | | | | | | | | | | | | | | | | | | Introduce new libata flags ATA_FLAG_NO_POWEROFF_SPINDOWN and ATA_FLAG_NO_HIBERNATE_SPINDOWN that, if set, will prevent disks from being spun off during system power off and hibernation, respectively (to handle the hibernation case we need the new system state SYSTEM_HIBERNATE_ENTER that can be checked against by libata, in analogy with SYSTEM_POWER_OFF). Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | pata-rb532-cf: remove set_irq_type from finish_ioPhil Sutter2009-01-271-2/+0Star
| | | | | | | | | | | | | | | | The driver has been tested without the call to set_irq_type at this point and occurs to work fine, so it should be safe to remove it. Signed-off-by: Phil Sutter <n0-1@freewrt.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | [libata] pata_via: support VX855, future chips whose IDE controller use 0x0571JosephChan@via.com.tw2009-01-261-5/+17
| | | | | | | | | | | | | | | | It supports VX855 and future chips whose IDE controller uses PCI ID 0x0571. Signed-off-by: Joseph Chan <josephchan@via.com.tw> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | sata_mv: no longer experimental (v2)Mark Lord2009-01-261-3/+3
| | | | | | | | | | | | | | | | Update Kconfig for sata_mv with full list of chips supported, and (finally!) remove the "EXPERIMENTAL" designations. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | sata_mv: msi masking fix (v2)Mark Lord2009-01-261-6/+15
| | | | | | | | | | | | | | | | | | | | | | | | Enable reliable use of Message-Signaled Interrupts (MSI) in sata_mv by masking further chip interrupts within the main interrupt handler. Based upon a suggestion by Grant Grundler. MSI is working reliably in all of my test systems here now. Signed-off-by: Mark Lord <mlord@pobox.com> Reviewed-by: Grant Grundler <grundler@google.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | sata_mv: Properly initialize main irq maskThomas Reitmayr2009-01-261-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I noticed that during initialization sata_mv.c assumes that the main interrupt mask has its default value of 0. The function mv_platform_probe(..) initializes a shadow irq mask with 0 assuming that's the value of the controller's register. Now mv_set_main_irq_mask(..) only writes the controller's register if the new value differs from the "shadowed" value. This is fatal when trying to disable all interrupts in mv_init_host(..), i.e. the following function call does not write anything to the main irq mask register: mv_set_main_irq_mask(host, ~0, 0); The effect I see on my machine (QNAP TS-109 II) with booting via kexec (with Linux as a 2nd-stage boot loader) is that if the sata_mv module was still loaded when performing kexec, then the new kernel's sata_mv module starts up with interrupts enabled. This results in an unhandled IRQ and breaks the boot process. The unhandled interrupt itself might also be fixed by Lennert's patch proposed at http://markmail.org/message/kwvzxstnlsa3s26w which I did not try yet. However I still propose to additionally initialize the shadow variable with the current contents of the main irq mask register to get both in sync and allow proper disabling the main irq mask. This fixes the unhandled irq on my machine. Signed-off-by: Thomas Reitmayr <treitmayr@devbase.at> Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | sata_mv: remove bogus nsect restrictionMark Lord2009-01-261-11/+2Star
| | | | | | | | | | | | | | | | Remove unneeded nsect restriction from GenII NCQ path, and improve comments to explain why this is not a problem. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | sata_mv: don't read hc_irq_causeMark Lord2009-01-261-12/+5Star
| | | | | | | | | | | | | | | | | | | | Remove silly read-modify-write sequences when clearing interrupts in hc_irq_cause. This gets rid of unneeded MMIO reads, resulting in a slight performance boost when switching between EDMA and non-EDMA modes (eg. for cache flushes). Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | sata_mv: fix 8-port timeouts on 508x/6081 chipsMark Lord2009-01-261-1/+1
| | | | | | | | | | | | | | | | | | | | Fix a longstanding bug for the 8-port Marvell Sata controllers (508x/6081), where accesses to the upper 4 ports would cause lost-interrupts / timeouts for the lower 4-ports. With this patch, the 6081 boards should finally be reliable enough for mainstream use with Linux. Signed-off-by: Mark Lord <mlord@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | sata_nv: fix MCP5x resetTejun Heo2009-01-261-13/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | MCP5x family of controllers seem to share much more with nf2's as far as reset protocol is concerned. It requires heardreset to get the PHY going and classfication code report after hardreset is unreliable. Create a new board type MCP5x and use noclassify hardreset. SWNCQ is modified to inherit from this new type. This fixes hotplug regression reported in kernel bz#12351. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | sata_nv: rename nv_nf2_hardreset()Tejun Heo2009-01-261-14/+14
| | | | | | | | | | | | | | | | nv_nf2_hardreset() will be used by other flavors too. Rename it to nv_noclassify_hardreset(). Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | libata: set NODEV_HINT for 0x7f statusTejun Heo2009-01-261-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Asus Pundit-R with atiixp controller has the second port missing and, very unusually, its status is stuck at 0x7f and all others at 0. This meanst that it fails TF access test but gets detected as a disk due to classification code check and then evades polling IDENTIFY presence detection thanks to the missing BSY in the status value causing excessive delays during boot. This patch makes libata-sff HSM set NODEV_HINT if the status is 0x7f to make polling IDENTIFY presence detection work for these machines. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* | libata-sff: fix incorrect EH messageTejun Heo2009-01-261-1/+1
|/ | | | | | | | The EH message for NODEV_HINT path was describing the opposite condition. Fix it. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sata_fsl: Return non-zero on error in probe()Michal Sojka2009-01-161-1/+1
| | | | | | | | | while I was looking over kernel sources I've found this small bug. Formerly, zero was returned even if an error happened. Signed-off-by: Michal Sojka <sojkam1@fel.cvut.cz> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* drivers/ata/pata_ali.c: s/isa_bridge/ali_isa_bridge/ to fix alpha buildAndrew Morton2009-01-161-14/+14
| | | | | | | | | | drivers/ata/pata_ali.c:44: error: static declaration of 'isa_bridge' follows non-static declaration arch/alpha/include/asm/pci.h:274: error: previous declaration of 'isa_bridge' was here Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Jeff Garzik <jeff@garzik.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: New driver for OCTEON SOC Compact Flash interface (v7).David Daney2009-01-163-0/+975
| | | | | | | | | | | | Cavium OCTEON processor support was recently merged, so now we have this CF driver for your consideration. Most OCTEON variants have *no* DMA or interrupt support on the CF interface so for these, only PIO is supported. Although if DMA is available, we do take advantage of it. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: Add another column to the ata_timing table.David Daney2009-01-161-35/+37
| | | | | | | | | | The forthcoming OCTEON SOC Compact Flash driver needs an additional timing value that was not available in the ata_timing table. I add a new column for dmack_hold time. The values were obtained from the Compact Flash specification Rev 4.1. Signed-off-by: David Daney <ddaney@caviumnetworks.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* sata_via: Add VT8261 supportJosephChan@via.com.tw2009-01-161-0/+2
| | | | | Signed-off-by: Joseph Chan <josephchan@via.com.tw> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* pata_atiixp: update port enabledness test handlingTejun Heo2009-01-161-19/+13Star
| | | | | | | | | | Port enabledness test fits much better into init_one() instead of pre_reset(). The reason why these tests are in pre_reset() is purely historical at this point. Move it to init_one(). This will help further changes. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* [libata] get-identity ioctl: Fix use of invalid memory pointerJeff Garzik2009-01-162-5/+13
| | | | | | | | | | | | for SAS drivers. Caught by Ke Wei (and team?) at Marvell. Also, move the ata_scsi_ioctl export to libata-scsi.c, as that seems to be the general trend. Acked-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* pata_it821x: Update RDC UDMA handlingAlan Cox2009-01-131-4/+13
| | | | | | | | The UDMA affliction is apparently specific to revision 0x11. Keeps us in sync with drivers/ide current. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* ata: fix wrong WARN_ON_ONCEChristian Borntraeger2009-01-131-3/+6
| | | | | | | | | | This patch fixes a wrong WARN_ON that was triggered by 32bit PIO support: WARNING: at drivers/ata/libata-sff.c:1017 ata_sff_hsm_move+0x45e/0x750() __atapi_pio_bytes simply doesnt know enough to decide if there is a bug. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* libata: only ports >= 0 need to synchronizeArjan van de Ven2009-01-111-1/+3
| | | | | | | | | | In a discussio with Jeff Garzik, he mentioned that the serialization for the libata port probes only needs to be within the domain of a host. This means that for the first port of each host (with ID 0), we don't need to wait, so we can relax our serialization a little. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* libata: Add a per-host flag to opt-in into parallel port probesArjan van de Ven2009-01-112-0/+12
| | | | | | | | | | | This patch adds a per host flag that allows drivers to opt in into having its busses scanned in parallel. Drivers that do not set this flag get their ports scanned in the "original" sequence. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'release' of ↵Linus Torvalds2009-01-092-12/+0Star
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: (94 commits) ACPICA: hide private headers ACPICA: create acpica/ directory ACPI: fix build warning ACPI : Use RSDT instead of XSDT by adding boot option of "acpi=rsdt" ACPI: Avoid array address overflow when _CST MWAIT hint bits are set fujitsu-laptop: Simplify SBLL/SBL2 backlight handling fujitsu-laptop: Add BL power, LED control and radio state information ACPICA: delete utcache.c ACPICA: delete acdisasm.h ACPICA: Update version to 20081204. ACPICA: FADT: Update error msgs for consistency ACPICA: FADT: set acpi_gbl_use_default_register_widths to TRUE by default ACPICA: FADT parsing changes and fixes ACPICA: Add ACPI_MUTEX_TYPE configuration option ACPICA: Fixes for various ACPI data tables ACPICA: Restructure includes into public/private ACPI: remove private acpica headers from driver files ACPI: reboot.c: use new acpi_reset interface ACPICA: New: acpi_reset interface - write to reset register ACPICA: Move all public H/W interfaces to new hwxface ...
| * Merge branch 'linus' into releaseLen Brown2009-01-0932-580/+1254
| |\
| * | ACPI: remove private acpica headers from driver filesLin Ming2008-12-312-12/+0Star
| | | | | | | | | | | | | | | | | | | | | External driver files should not include any private acpica headers. Signed-off-by: Lin Ming <ming.m.lin@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
* | | libata: use WARN_ON_ONCE on hot pathsTejun Heo2009-01-092-20/+20
| |/ |/| | | | | | | | | | | | | | | Convert WARN_ON() on command issue/completion paths to WARN_ON_ONCE() so that libata doesn't spam the machine even when one of those conditions triggers repeatedly. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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