On certain implementations, _GTF evaluation depends on preceding _STM
and both can be pretty picky about the configuration. Using _GTM
result cached during controller initialization satisfies the most
neurotic _STM implementation. However, libata evaluates _GTF after
reset during device configuration and the hardware state can be
different from what _GTF expects and can cause evaluation failure.
This patch adds dev->gtf_cache and updates ata_dev_get_GTF() such that
it uses the cached value if available. Cache is cleared with a call
to ata_acpi_clear_gtf().
Because for SATA ACPI nodes _GTF must be evaluated after _SDD which
can't be done till IDENTIFY is complete, _GTF caching from
ata_acpi_on_resume() is used only for IDE ACPI nodes.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
_GTM fetches currently configured transfer mode while _STM configures
controller according to _GTM parameter and prepares transfer mode
configuration TFs for _GTF. In many cases _GTM and _STM
implementations are quite brittle and can't cope with configuration
changed by libata.
libata does not depend on ATA ACPI to configure devices. The only
reason libata performs _GTM and _STM are to make _GTF evaluation
succeed and libata also doesn't care about how _GTF TFs configure
transfer mode. It overrides that configuration anyway, so from
libata's POV, it doesn't matter what value is feeded to _STM as long
as evaluation succeeds for _STM and following _GTF.
This patch adds dev->__acpi_init_gtm and store initial _GTM values on
host initialization before modified by reset and mode configuration.
If the field is valid, ata_acpi_init_gtm() returns pointer to the
saved _GTM structure; otherwise, NULL.
This saved value is used for _STM during resume and peek at
BIOS/firmware programmed initial timing for later use. The accessor
is there to make building w/o ACPI easy as dev->__acpi_init doesn't
exist if ACPI is not enabled.
On driver detach, the initial BIOS configuration is restored by
executing _STM with the initial _GTM values such that the next driver
can also use the initial BIOS configured values.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add two hooks - ata_acpi_dissociate() which is called during driver
detach after the whole host is shutdown and ata_acpi_on_disable()
which is called when a device is disabled.
Signed-off-by: Tejun heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
ata_port_detach() calls ata_dev_disable() with host lock held but
ata_dev_disable() should be called from EH context. ata_port_detach()
steals EH context by setting ATA_PFLAG_UNLOADAING and flushing EH.
Drop locking around ata_dev_disable() and note that ata_port_detach()
owns EH context at that point.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Add constants for DEVICE CONFIGURATION OVERLAY and SET_MAX to
include/linux/ata.h.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Make prink helpers format @lv together rather than prepending to the
format string as constant.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
* No internal function uses const ata_port. Drop const from @ap.
* Make ata_acpi_stm() copy @stm before using it and change @stm to
const.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Improve the existing boot/load time warnings from sata_mv
for Highpoint RocketRAID 23xx cards, based on new knowledge
about where the BIOS likes to overwrite sectors with metadata.
Harmless to us, but very useful for end users.
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Like ST380817AS / 3.42, ST3160023AS / 3.42 times out commands if NCQ
is used. Blacklist it. This is reported by Matheus Izvekov in the
following thread.
http://thread.gmane.org/gmane.linux.ide/24202
Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Matheus Izvekov <mizvekov@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
link->eh_info.serror is used to cache SError for controllers which
need it cleared from interrupt handler to clear IRQ. It also should
be cleared after reset just like SError itself.
Make ata_std_postreset() clear link->eh_info.serror too and update
sata_sil such that it doesn't care about bookkeeping the value.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Interestingly, sata_sil raises spurious interrupts if it's coupled
with Sil SATA_PATA bridge. Currently, sata_sil interrupt handler is
strict about spurious interrupts and freezes the port when it occurs.
This patch makes it more forgiving.
* On SATA PHY event interrupt, serror value is checked to see whether
it really is PHYRDY CHG event. If not, SATA PHY event interrupt is
ignored.
* If ATA interrupt occurs while no command is in progress, it's
cleared and ignored.
This fixes bugzilla bug 9505.
http://bugzilla.kernel.org/show_bug.cgi?id=9505
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
* git://git.linux-nfs.org/pub/linux/nfs-2.6:
MAINTAINERS: update the NFS CLIENT entry
NFS: Fix an Oops in NFS unmount
Revert "NFS: Ensure we return zero if applications attempt to write zero bytes"
SUNRPC xprtrdma: fix XDR tail buf marshalling for all ops
NFSv2/v3: Fix a memory leak when using -onolock
NFS: Fix NFS mountpoint crossing...
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2:
ocfs2: Re-journal buffers after transaction extend
ocfs2: Allow for debugging of transaction extends
ocfs2: Don't panic when truncating an empty extent
ocfs2: fix exit-while-locked bug in ocfs2_queue_orphans()
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6:
HOWTO: update misspelling and word incorrected
add stable_api_nonsense.txt in korean
HOWTO: change addresses of maintainer and lxr url for Korean HOWTO
Add Documentation for FAIR_USER_SCHED sysfs files
HOWTO: Change man-page maintainer address for Japanese HOWTO
tipar: remove obsolete module
kobject: fix the documentation of how kobject_set_name works
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6:
USB: revert portions of "UNUSUAL_DEV: Sync up some reported devices from Ubuntu"
usb: Remove broken optimisation in OHCI IRQ handler
USB: at91_udc: correct hanging while disconnecting usb cable
USB: use IRQF_DISABLED for HCD interrupt handlers
USB: fix locking loop by avoiding flush_scheduled_work
usb.h: fix kernel-doc warning
USB: option: Bind to the correct interface of the Huawei E220
USB: cp2101: new device id
usb-storage: Fix devices that cannot handle 32k transfers
USB: sierra: fix product id
ocfs2_extend_trans() might call journal_restart() which will commit dirty
buffers and then restart the transaction. This means that any buffers which
still need changes should be passed to journal_access() again. Some paths
during extend weren't doing this right.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
The nastiest cases of transaction extends are also the rarest. We can expose
them more quickly at the expense of performance by going straight to the
journal_restart() in ocfs2_extend_trans(). Wrap things in OCFS2_DEBUG_FS so
that we only do this when "expensive debugging" is turned on.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
We're holding the cluster lock when a failure might happen in
ocfs2_dir_foreach() so it needs to be released.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
This reverts one change from 67fa10627e
that prevented userspace from seing the "driver disk" lun in a san disk
device. The kernel shouldn't do this, it's up to userspace to handle
this properly, if it somehow wants to filter this away.
Cc: Ben Collins <bcollins@ubuntu.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Phil Dibowitz <phil@ipom.com>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Cc: Hans de Goede <j.w.r.degoede@hhs.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
The OHCI IRQ handler has an optimisation that avoids reading some
chip registers when the controller reports that the interrupt was
triggered *only* because completed requests were written into the
controller's "done list" and handed to the host.
This mechanism can't be used on some controllers. Among others, it
fails for the SA1111 and the AMCC 440EP PowerPC processor.
This patch removes the optimisation and makes the code clearer.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Correct hanging while disconnecting the USB device cable. Prevent a race
between vbus and UDP interrupts. This bug was tracked on at91sam9260ek
boards.
A usb resume interrupt was firing after the vbus interrupt : the IP was
then already stoped and not able to deal with it (no more clock). A simple
interrupt disabling is ok as the "end of bus reset" irq is non maskable and
ok to resume the USB device IP.
Signed-off-by: Nicolas Ferre <nicolas.ferre@rfo.atmel.com>
Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Host controller IRQs are supposed to be serviced with interrupts
disabled. This patch (as1026) adds an IRQF_DISABLED flag to all the
controller drivers that lack it. It also replaces the
spin_lock_irqsave() and spin_unlock_irqrestore() calls in uhci_irq()
with simple spin_lock() and spin_unlock().
This fixes Bugzilla #9335.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch (as1027) replaces a call to flush_scheduled_work() -- a
dangerous routine to invoke, especially while holding any sort of lock
-- with calls to cancel_work_sync() and cancel_delayed_work_sync().
This fixes Bugzilla #9532.
Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
CC: David Brownell <david-b@pacbell.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Fix kernel-doc warning in usb.h:
Warning(linux-2.6.24-rc3-git7//include/linux/usb.h:166): No description found for parameter 'sysfs_files_created'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes a bunch of problems we are having with the Huawei devices...
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Jaime Velasco Juan <jsagarribay@gmail.com>
Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This adds a device ID for the Aerocomm Radio Modem, which uses the
cp2102. I'm sure changing num_bulk_in/num_bulk_out to NUM_DONT_CARE
is the wrong fix, but this is the only device I have with a cp2102,
so I have no idea what a good global value would be, if there is one.
Zero didn't work with this device.
From: Jeff Long <JeffLong@mitre.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
When a device cannot handle the smallest previously limited transfer
size (64 blocks) without stalling, limit the device to the amount of
packets that fit in a platform native page.
The lowest possible limit is PAGE_CACHE_SIZE, so if the device is ever
used on a platform that has larger than 8K pages, you lose unless you
can convince the device firmware folks to fix the issue.
Cc: Mathew Dharm <mdharm-scsi@one-eyed-alien.net>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Doug Maxey <dwm@austin.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Attached is a patch to fix the addition of the new product ids I sent.
It is against 2.6.24-rc4, as Linus included the broken version of the
patch I sent you in that tree. :(
Not sure if this is the right method to go about this, but hopefully I got
it right this time.
Signed-off-by: Andrew Gilmore <agilmore@wirelessbeehive.com>
CC: Kevin Lloyd <klloyd@sierrawireless.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Restore PCI expansion ROM P2P prefetch window creation.
This patch reverts previous "Avoid creating P2P prefetch
window for expansion ROMs" change due to regressions that
were spotted on some systems.
Signed-off-by: Gary Hade <garyhade@us.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
So sorry. again My mail is set with EUC-kR.
I'll resend with UTF-8.
Signed-off-by: barrios <minchan.kim@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Below is a patch to change email address of man-page maintainer for
Japanese HOWTO document (Documentation/ja_JP/HOWTO).
This is for sync to Documentation/HOWTO that Michael Kerrisk mentioned
to me.
From: Tsugikazu Shibata <tshibata@ab.jp.nec.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
tipar: remove obsolete module
The tipar character driver was used to implement bit-banging access
to Texas Instruments parallel link cable. A user-land method now
exists thru PPDEV & PARPORT.
Signed-off-by: Romain Liévin <roms@lpg.ticalc.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Thanks to Dave Young <hidave.darkstar@gmail.com> for pointing out that I
forgot to update the comment when I rewrote kobject_set_name.
Cc: Dave Young <hidave.darkstar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
[WATCHDOG] add Nano 7240 driver
[WATCHDOG] ipmi: add the standard watchdog timeout ioctls
[WATCHDOG] IT8212F watchdog driver
[WATCHDOG] Sbus: cpwatchdog, remove SPIN_LOCK_UNLOCKED
[WATCHDOG] bfin_wdt, remove SPIN_LOCK_UNLOCKED
[WATCHDOG] Stop looking for device as soon as one is found
[WATCHDOG] at32ap700x_wdt: add support for boot status and add fix for silicon errata
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/ehca: Fix lock flag variable location, bump version number
IB/ehca: Serialize HCA-related hCalls if necessary
IB/ehca: Return correct number of SGEs for SRQ
Add proper support for CLOCK_EVT_MODE_RESUME and in the process fix
CLOCK_EVT_MODE_SHUTDOWN so that only the enable bits are toggled for both.
Signed-off-by: Kevin Hilman <khilman@mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
According to ARM7TDMI Technical Reference Manual (ARM DDI 0210C) writing
to the DCC data write register coproc dest registers are 1 and 0, not 0
and 1.
ARM920T TRM (ARM DDI 0151C) agrees on that.
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
[IRDA]: irda parameters warning fixes.
[IRDA]: stir4200 fixes.
[IRDA]: irlmp_unregister_link() needs to free lsaps.
[IRDA]: mcs7780 needs to free allocated rx buffer.
[IRDA]: Race between open and disconnect in irda-usb.
[SCTP]: Flush fragment queue when exiting partial delivery.
[AX25]: Locking dependencies fix in ax25_disconnect().
[IPV4]: Make tcp_input_metrics() get minimum RTO via tcp_rto_min()
[IPV6]: Fix the return value of ipv6_getsockopt
[BRIDGE]: Assign random address.
[IPV4]: Updates to nfsroot documentation
[ATM]: Fix compiler warning noise with FORE200E driver
[NETFILTER]: bridge: fix missing link layer headers on outgoing routed packets
[SYNCPPP]: Endianness and 64bit fixes.
[TIPC]: Fix semaphore handling.
[NETFILTER]: xt_hashlimit should use time_after_eq()
[XFRM]: Display the audited SPI value in host byte order.
[NETFILTER]: ip_tables: fix compat copy race
[NETFILTER]: ctnetlink: set expected bit for related conntracks
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
[POWERPC] Make PS3_SYS_MANAGER default y, not m
[POWERPC] Fix rounding bug in emulation for double float operating
[POWERPC] iSeries: don't printk with HV spinlock held
[POWERPC] 82xx: mpc8272ads, pq2fads: Update defconfig with CONFIG_FS_ENET_MDIO_FCC
[POWRPC] CPM2: Eliminate section mismatch warning in cpm2_reset().
[POWERPC] Kill non-existent symbols from ksyms and commproc.h
[POWERPC] Fix typo #ifdef -> #ifndef
Tejun Heo