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Commit Graph

30257 Commits

Author SHA1 Message Date
Alan Stern
bdd016ba64 USB: add ep->enable
This patch (as944) adds an explicit "enabled" field to the
usb_host_endpoint structure and uses it in place of the current
mechanism.  This is merely a time-space tradeoff; it makes checking
whether URBs may be submitted to an endpoint simpler.  The existing
mechanism is efficient when converting urb->pipe to an endpoint
pointer, but it's not so efficient when urb->ep is used instead.

As a side effect, the procedure for enabling an endpoint is now a
little more complicated.  The ad-hoc inline code in usb.c and hub.c
for enabling ep0 is now replaced with calls to usb_enable_endpoint,
which is no longer static.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:55:00 -07:00
Alan Stern
5b653c79c0 USB: add urb->ep
This patch (as943) prepares the way for eliminating urb->pipe by
introducing an endpoint pointer into struct urb.  For now urb->ep
is set by usb_submit_urb() from the pipe value; eventually drivers
will set it themselves and we will remove urb->pipe completely.

The patch also adds new inline routines to retrieve an endpoint
descriptor's number and transfer type, essentially as replacements for
usb_pipeendpoint and usb_pipetype.

usb_submit_urb(), usb_hcd_submit_urb(), and usb_hcd_unlink_urb() are
converted to use the new field and new routines.  Other parts of
usbcore will be converted in later patches.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:55:00 -07:00
Adrian Bunk
a96173af52 USB: Storage: usbat_check_status(): fix check-after-use
The Coverity checker spotted that we have already oops'ed if "us"
was NULL.

Since "us" can't be NULL in the only caller this patch removes the
NULL check.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Matthew Dharm <mdharm-usb@one-eyed-alien.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:54:59 -07:00
Robert P. J. Day
9f705bde6e USB: Remove dead references to "SAFE_SERIAL" CONFIG variables.
Remove the references to CONFIG_USBD_SAFE_SERIAL_{VENDOR,PRODUCT},
which aren't defined in any Kconfig file.

Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:54:59 -07:00
Mike Nuss
89a0fd18a9 USB: OHCI handles more ZFMicro quirks
The ZF Micro OHCI controller exhibits unexpected behavior that seems to be
related to high load.  Under certain conditions, the controller will
complete a TD, remove it from the endpoint's queue, and fail to add it to
the donelist. This causes the endpoint to appear to stop responding. Worse,
if the device is removed while in that state, OHCI will hang while waiting
for the orphaned TD to complete.  The situation is not recoverable without
rebooting.

This fix enhances the scope of the existing OHCI_QUIRK_ZFMICRO flag:

 1. A watchdog routine periodically scans the OHCI structures to check
    for orphaned TDs. In these cases the TD is taken back from the
    controller and completed normally.

 2. If a device is removed while the endpoint is hung but before the
    watchdog catches the situation, any outstanding TDs are taken back
    from the controller in the 'sanitize' phase.

The ohci-hcd driver used to print "INTR_SF lossage" in this situation;
this changes it to the universally accurate "ED unlink timeout".  Other
instances of this message presumably have different root causes.

Both this Compaq quirk and a NEC quirk are now properly compiled out for
non-PCI builds of this driver.

Signed-off-by: Mike Nuss <mike@terascala.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:54:59 -07:00
Pete Zaitcev
e8fa0ce65c usblp: Make use of URB_FREE_BUFFER
Employ the new API URB_FREE_BUFFER that we've got. There was talk of a combined
constructor for this case, but apparently it's not happening, so just set the
flag explicitly for now.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:54:58 -07:00
Pete Zaitcev
7f477358e2 usblp: Implement the ENOSPC convention
This patch implements a mode when a printer returns ENOSPC when it runs
out of paper. The default remains the same as before. An application which
wishes to use this function has to enable it explicitly with an ioctl
LPABORT.

This is done on a request by our (Fedora) CUPS guy, Tim Waugh. The API is
similar enough to the lp0's one that CUPS works with both (but see below),
but it's has some differences.

Most importantly, the abort mode is persistent in case of lp0: once tunelp
was run your cat fill blow up until you reboot or run tunelp again. For
usblp, I made it so the abort mode is only in effect as long as device
is open. This way you can mix and match CUPS and cat(1) freely and nothing
bad happens even if you run out of paper. It is also safer in the face
of any unexpected crashes.

It has to be noted that mixing LPABORT and O_NONBLOCK is not advised.
It probably does not do what you want: instead of returning -ENOSPC
it will always return -EAGAIN (because it would otherwise block while
waiting for the paper). Applications which use O_NONBLOCK should continue
to use LPGETSTATUS like before.

Finally, CUPS actually requires patching to take full advantage of this.
It has several components; those which invoke LPABORT work, but some of
them need the ioctl added. This is completely compatible, you can mix
old CUPS and new kernels or vice versa.

Signed-off-by: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:54:58 -07:00
Jesper Juhl
ca337db6f9 USB: Clean up duplicate includes in drivers/usb/
This patch cleans up duplicate includes in
	drivers/usb/

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:54:58 -07:00
Micah Gruber
011db81523 USB: Remove unneeded pointer intf from speedtch_upload_firmware()
This trivial patch removes the unneeded pointer intf returned from
usb_ifnum_to_if(), which is never used. The check for NULL can be simply done
by if (!usb_ifnum_to_if(usb_dev, 2)).

Signed-off-by: Micah Gruber <micah.gruber@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:54:58 -07:00
Alan Stern
cd59abfcc4 PM: merge device power-management source files
This patch (as993) merges the suspend.c and resume.c files in
drivers/base/power into main.c, making some public symbols private.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Acked-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:12 -07:00
Greg Kroah-Hartman
e89a4116ef Driver core: rename ktype_edd and ktype_efivar
This makes it a bit more sane when trying to figure out how to clean up
the ktype mess.

Based on a larger patch from Kay Sievers

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:12 -07:00
Greg Kroah-Hartman
a1148fb03f Driver core: rename ktype_driver
This makes it a bit more sane when trying to figure out how to clean up
the ktype mess.

Based on a larger patch from Kay Sievers

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:12 -07:00
Greg Kroah-Hartman
8f4afc410b Driver core: rename ktype_device
This makes it a bit more sane when trying to figure out how to clean up
the ktype mess.

Based on a larger patch from Kay Sievers

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:12 -07:00
Greg Kroah-Hartman
adc56808f3 Driver core: rename ktype_class
This makes it a bit more sane when trying to figure out how to clean up
the ktype mess.

Based on a larger patch from Kay Sievers

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:11 -07:00
Greg Kroah-Hartman
e4bc16621d driver core: remove subsystem_init()
There is only one user of it, and it is only a wrapper for kset_init().

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:11 -07:00
Tejun Heo
5a7ad7f044 sysfs: kill sysfs_update_file()
sysfs_update_file() depends on inode->i_mtime but sysfs iondes are now
reclaimable making the reported modification time unreliable.  There's
only one user (pci hotplug) of this notification mechanism and it
reportedly isn't utilized from userland.

Kill sysfs_update_file().

Signed-off-by: Tejun Heo <htejun@gmail.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:09 -07:00
Kay Sievers
dc8c85871c PTY: add kernel parameter to overwrite legacy pty count
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:09 -07:00
Jean Delvare
1359555eb7 Driver core: Make platform_device.id an int
While platform_device.id is a u32, platform_device_add() handles "-1"
as a special id value. This has potential for confusion and bugs.
Making it an int instead should prevent problems from happening in
the future.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:07 -07:00
Akinobu Mita
44b760a825 sysdev: remove global sysdev drivers list
No one uses sysdev_drivers. Because no one calls sysdev_driver_register
with NULL class.

And it is difficult to imagine that someone want to implement a global
sysdev driver which is called with all sys_device on any kind of
sysdev_class.

So this patch removes global sysdev_drivers list and update comments
for this change.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Tejun Heo <htejun@gmail.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:07 -07:00
Adrian Bunk
b4d1eb2cce drivers/base/power/: make 2 functions static
suspend_device() and resume_device() can now become static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:06 -07:00
Markus Rechberger
109f0e93b6 Fix Firmware class name collision
following patch fixes the i2c name collision with i2c-dev.

http://mcentral.de/wiki/index.php/Bugtracker#i2c_core_problem

This issue has been experienced with em28xx and saa7133 based devices.
I discussed that problem with Jean Delvare a while ago and he proposed 
to add a prefix to the class name.

Signed-off-by: Markus Rechberger <markus.rechberger@amd.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:06 -07:00
Kay Sievers
7ac1cf4a87 Driver core: add uevent file for bus and driver
This has been in the SuSE kernels for some time now.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:06 -07:00
Kay Sievers
5c5daf657c Driver core: exclude kobject_uevent.c for !CONFIG_HOTPLUG
Move uevent specific logic from the core into kobject_uevent.c, which
does no longer require to link the unused string array if hotplug
is not compiled in.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:06 -07:00
tonyj@suse.de
07c015e765 Convert from class_device to device in drivers/char
Convert from class_device to device in drivers/char.

Signed-off-by: Tony Jones <tonyj@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:04 -07:00
tonyj@suse.de
60043428a5 Convert from class_device to device for drivers/video
Convert from class_device to device for drivers/video.

Signed-off-by: Tony Jones <tonyj@suse.de>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:04 -07:00
Jean Delvare
34b51f39e2 dmi-id: Possible cleanup
The DEFINE_DMI_ATTR macro has a single user left so we can expand it
for slightly shorter/simpler code.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Lennart Poettering <mzxreary@0pointer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:04 -07:00
Jean Delvare
6374475661 dmi-id: Use dynamic sysfs attributes
We can use sysfs attributes with an extra parameter for dmi id
attributes. This makes it possible to use the same callback function
for all attributes, reducing the binary size significantly (-18% on
x86_64.)

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Lennart Poettering <mzxreary@0pointer.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:04 -07:00
Greg Kroah-Hartman
34980ca8fa Drivers: clean up direct setting of the name of a kset
A kset should not have its name set directly, so dynamically set the
name at runtime.

This is needed to remove the static array in the kobject structure which
will be changed in a future patch.

Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:02 -07:00
Greg Kroah-Hartman
7e7654a92a cdev: remove unneeded setting of cdev names
struct cdev does not need the kobject name to be set, as it is never
used.  This patch fixes up the few places it is set.


Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2007-10-12 14:51:02 -07:00
Greg Kroah-Hartman
19c38de88a kobjects: fix up improper use of the kobject name field
A number of different drivers incorrect access the kobject name field
directly.  This is not correct as the name might not be in the array.
Use the proper accessor function instead.
2007-10-12 14:51:02 -07:00
Greg Kroah-Hartman
5901d0145c Driver core: remove get_bus()
get_bus() should not be globally visable as it is not used by anything
other than drivers/base/bus.c.  This patch removes the visability of it,
and renames it to match all of the other *_get() functions in the
kernel.


Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:02 -07:00
Greg Kroah-Hartman
fc1ede5888 Driver core: remove put_bus()
put_bus() should not be globally visable as it is not used by anything
other than drivers/base/bus.c.  This patch removes the visability of it,
and renames it to match all of the other *_put() functions in the
kernel.


Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:02 -07:00
Greg Kroah-Hartman
1ef4cfac01 Driver core: remove subsys_get()
There are no more subsystems, it's a kset now so remove the function and
the only two users, which are in the driver core.


Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:01 -07:00
Greg Kroah-Hartman
6e9d930d16 Driver core: remove subsys_put()
There are no more subsystems, it's a kset now so remove the function and
the only two users, which are in the driver core.


Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:01 -07:00
Greg Kroah-Hartman
27f20e5e4e Driver core: remove kset_set_kset_s
This macro is only used by the driver core and is held over from when we
had subsystems.  It is not needed anymore.


Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:01 -07:00
Greg Kroah-Hartman
d6b05b84ed Driver core: remove subsys_set_kset
This macro is only used by the driver core and is held over from when we
had subsystems.  It is not needed anymore.


Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:01 -07:00
Kay Sievers
6a8d8abb6e Driver core: add CONFIG_UEVENT_HELPER_PATH
The kernel creates a process for every event that is send, even when
there is no binary it could execute.  We are needlessly creating around
200-300 failing processes during early bootup, until we have the chance
to disable it from userspace.

This change allows us to disable /sbin/hotplug entirely, if you want to,
by setting UEVENT_HELPER_PATH="" in the kernel config.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:01 -07:00
Kay Sievers
7eff2e7a8b Driver core: change add_uevent_var to use a struct
This changes the uevent buffer functions to use a struct instead of a
long list of parameters. It does no longer require the caller to do the
proper buffer termination and size accounting, which is currently wrong
in some places. It fixes a known bug where parts of the uevent
environment are overwritten because of wrong index calculations.

Many thanks to Mathieu Desnoyers for finding bugs and improving the
error handling.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:51:01 -07:00
Kay Sievers
8380770c84 Driver core: make sysfs uevent-attributes static
Attributes do not have an owner(module) anymore, so there is no need
to carry the attributes in every single bus instance.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Acked-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:50:59 -07:00
Kay Sievers
43cc71eed1 platform: prefix MODALIAS with "platform:"
Prefix platform modalias strings with "platform:", which
modprobe config to blacklist alias resolving if userspace
configures it.

Send uevents for all platform devices.

Add MODULE_ALIAS's to: pxa2xx_pcmcia, ds1742 and pcspkr to trigger
module autoloading by userspace.

  $ modinfo pcspkr
  alias:          platform:pcspkr
  license:        GPL
  description:    PC Speaker beeper driver
  ...

  $ modprobe -n -v platform:pcspkr
  insmod /lib/modules/2.6.23-rc3-g28e8351a-dirty/kernel/drivers/input/misc/pcspkr.ko

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: David Brownell <david-b@pacbell.net>
Cc: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12 14:50:59 -07:00
Thomas Gleixner
43ca7ec96f ACPI: remove the now unused ifdef code
The conversion of x86-64 to clock events makes the
 #ifdef CONFIG_GENERIC_CLOCKEVENTS
 n the timer broadcast functions useless. Remove it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: john stultz <johnstul@us.ibm.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
2007-10-12 23:04:23 +02:00
Thomas Gleixner
5d5a2989b7 x86: kill 8253pit.h
Useless header file with 32 bit and 64 bit variants. Move the
single useful line to the place where it is used.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
2007-10-12 23:04:23 +02:00
Pierre Ossman
77f1fd6ecd mmc: use correct unregister function for led trigger
We register a simple trigger so make sure we use the corresponding
unregister function.

(Also means we get a dummy function when triggers aren't compiled in)

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-10-12 22:48:46 +02:00
Jeff Garzik
2855568b1e [libata] struct pci_dev related cleanups
* remove pointless pci_dev_to_dev() wrapper.  Just directly reference
  the embedded struct device like everyone else does.

* pata_cs5520: delete cs5520_remove_one(), it was a duplicate of
  ata_pci_remove_one()

* linux/libata.h: don't bother including linux/pci.h, we don't need it.
  Simply declare 'struct pci_dev' and assume interested parties will
  include the header, as they should be doing anyway.

* linux/libata.h: consolidate all CONFIG_PCI declarations into a
  single location in the header.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-12 14:55:47 -04:00
Tejun Heo
b06ce3e51e libata: use ata_exec_internal() for PMP register access
PMP registers used to be accessed with dedicated accessors ->pmp_read
and ->pmp_write.  During reset, those callbacks are called with the
port frozen so they should be able to run without depending on
interrupt delivery.  To achieve this, they were implemented polling.

However, as resetting the host port makes the PMP to isolate fan-out
ports until SError.X is cleared, resetting fan-out ports while port is
frozen doesn't buy much additional safety.

This patch updates libata PMP support such that PMP registers are
accessed using regular ata_exec_internal() mechanism and kills
->pmp_read/write() callbacks.  The following changes are made.

* PMP access helpers - sata_pmp_read_init_tf(), sata_pmp_read_val(),
  sata_pmp_write_init_tf() are folded into sata_pmp_read/write() which
  are now standalone PMP register access functions.

* sata_pmp_read/write() returns err_mask instead of rc.  This is
  consistent with other functions which issue internal commands and
  allows more detailed error reporting.

* ahci interrupt handler is modified to ignore BAD_PMP and
  spurious/illegal completion IRQs while reset is in progress.  These
  conditions are expected during reset.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:47 -04:00
Tejun Heo
afaa5c373d libata: implement ATA_PFLAG_RESETTING
Implement ATA_PFLAG_RESETTING.  This flag is set while reset is in
progress.  It's set before prereset is called and cleared after reset
fails or postreset is finished.

This flag itself doesn't have any function.  It will be used by LLDs
to tell whether reset is in progress if it needs to behave differently
during reset.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:47 -04:00
Tejun Heo
2b789108fc libata: add @timeout to ata_exec_internal[_sg]()
Add @timeout argument to ata_exec_internal[_sg]().  If 0, default
timeout ata_probe_timeout is used.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:47 -04:00
Tejun Heo
5f226c6bf7 ahci: fix notification handling
Asynchronous notification on ICH9 didn't work because it didn't write
AN FIS into the RX area - it only updates SNotification.  Also,
snooping SDB_FIS RX area is racy against further SDB FIS receptions.
Let sata_async_notification() determine using SNTF if it's available
and snoop RX area iff SNTF isn't available

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:47 -04:00
Tejun Heo
1c954a4d9a ahci: clean up PORT_IRQ_BAD_PMP enabling
Now that we have pp->intr_mask, move PORT_IRQ_BAD_PMP enabling to
ahci_pmp_attach/detach() where it belongs.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:47 -04:00
Tejun Heo
75da6d2b8f ahci: kill leftover from enabling NCQ over PMP
ahci had problems with NCQ over PMP and NCQ used to be disabled while
PMP was attached.  After fixing the problem, the temporary NCQ
disabling code wasn't removed completely.  Kill the remaining piece.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:46 -04:00
Tejun Heo
9073868376 libata: wrap schedule_timeout_uninterruptible() in loop
Tasks in uninterruptible sleep might be woken up by unrelated events
and should check whether the condition it was waiting for has actually
triggered.  Wrap schedule_timeout_uninterruptible() in loop to achieve
it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:46 -04:00
Tejun Heo
94ff3d5408 libata: skip suppress reporting if ATA_EHI_QUIET
ATA_EHI_NO_AUTOPSY and ATA_EHI_QUIET are used during initial probing
to skip exception analysis and reporting.  Usually, there's nothing to
report but on some allowed but rare corner cases (e.g. phy status
changed interrupt when IRQ is enabled on frozen port - this happens if
IRQ pending status isn't cleared in the IRQ router or controller)
exception messages get printed.

Skip reporting if ATA_EHI_QUIET is set.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:46 -04:00
Tejun Heo
abf6e8ed07 libata: clear ehi description after initial host report
ehi description field is used to carry LLD specific controller
description.  Sometimes, it's used without clearing before and LLD
description gets printed with exception information one more time.
Clear after printing.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:46 -04:00
Tejun Heo
a01f48b8e7 pata_jmicron: match vendor and class code only
PATA part of all current JMB controllers behave the same way and
JMicron confirms that all future ones will stay compatible.  Drop
device matching and match only vendor and class.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Ethan Hsiao <ethanhsiao@jmicron.com>
Cc: Justin Tsai <justin@jmicron.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:46 -04:00
Tejun Heo
954bb005c9 libata: add ST9160821AS / 3.ALD to NCQ blacklist
ST9160821AS / 3.ALD also does spurious NCQ completions.  Disable NCQ.

Signed-off-by: Tejun Heo <teheo@suse.de>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:46 -04:00
Alan Cox
025621f9a7 pata_acpi: ACPI driver support
On a cable there may be
	eighty wires or perhaps forty
	and we learn about its type
	In the world of ACPI

	So we call the GTM
	And we find the the timing rate
	And we look through it to see
	If eighty wire it must be

	Timing lives in ACPI routines
	ACPI routines, ACPI routines
	Timing lives in ACPI routines
	ACPI routes ACPI routines

	And the drivers last you see
	Picking up unknown pci ids
	and the code begins to work

	Timing lives in ACPI routines
	ACPI routines, ACPI routines
	Timing lives in ACPI routines
	ACPI routes ACPI routines

	[Full speed ahead, Mr Hacker, full speed ahead]
	 Full speed over here sir!
	 Checking Cable, checking cable
	 Aye aye, 80 wire,
	 Heaven heaven]

	If we use ACPI (ACPI)
	Every box (every box) has all we need (has all we need)
	Cable type (cable type) and mode timing (mode timing)
	In our ATA (in our ATA) subroutines (subroutines, ha ha)

	Timing lives in ACPI routines
	ACPI routines, ACPI routines
	Timing lives in ACPI routines
	ACPI routes ACPI routines
	Timing lives in ACPI routines
	ACPI routines, ACPI routines
	Timing lives in ACPI routines
	ACPI routes ACPI routines

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:46 -04:00
Alan Cox
badff03df7 libata-core: Expose gtm methods for driver use
Talk to the dark side our driver has to, yes. Much misleading is the
data. Store it in a structure we do so that it may be parsed.

Signed-off-by: Alan Cox <alan@redhat.com>
--
Whats small, old and shouts phrases out of order across mountains ?
Yodla..
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:46 -04:00
Tejun Heo
70edb185db libata: add HDT722516DLA380 to NCQ blacklist
HDT722516DLA380 does spurious completion of NCQ commands.  Blacklist
it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Frans Pop <elendil@planet.nl>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:46 -04:00
Paolo Ornati
da6f0ec2d5 libata: blacklist NCQ on Seagate Barracuda ST380817AS
Seagate Barracuda ST380817AS has troubles with NCQ. For example,
unpacking a tarball on an XFS filesystem gives this:

ata1.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x2 frozen
ata1.00: cmd 61/40:00:29:a3:98/00:00:00:00:00/40 tag 0 cdb 0x0 data 32768 out
         res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)

More info here:
http://lkml.org/lkml/2007/1/21/76

Blacklist it!

Signed-off-by: Paolo Ornati <ornati@fastwebnet.it>
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:45 -04:00
Jeff Garzik
6ebe9d8667 [libata] Turn on ACPI by default
Let's see what explodes.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-12 14:55:45 -04:00
Alan Cox
2db78dd302 libata_scsi: Fix ATAPI transfer lengths
Some controller variants snoop the ATAPI length value for Packet
transfers to do state machine and FIFO management. Thus we want to
set it properly, even for cases where it is otherwise meaningless.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:45 -04:00
Alan Cox
681c80b5d9 libata: correct handling of SRST reset sequences
Correct handling of SRST reset sequences.  After an SRST it is undefined
whether the drive has gone back to PIO0.  In order to talk safely we should
talk slowly and carefully until we know.

Thus when we do the reset if the controller has a pio setup method we call it
to flip back to PIO 0 and a known state.  After the reset completes the
identify will then be done at the safe speed and the drive/controller will
pick suitable faster modes and reconfigure the controller to these timings.

As a side effect it means we force the controller to PIO 0 as we bring it up
which fixes funnies on a few systems where the BIOS firmware leaves us in an
interesting choice of modes, or embedded boxes with no firmware which come up
in random states.

For smart controllers there is nothing to do - they know about this
internally.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:45 -04:00
Matthew Garrett
237d8440cb libata: Integrate ACPI-based PATA/SATA hotplug - version 5
Modern laptops with hotswap bays still tend to utilise a PATA interface
on a SATA bridge, generally with the host controller in some legacy
emulation mode rather than AHCI. This means that the existing hotplug
code in libata is unable to work. The ACPI specification states that
these devices can send notifications when hotswapped, which avoids the
need to obtain notification from the controller. This patch uses the
existing libata-acpi code and simply registers a notification in order
to trigger a rescan whenever the firmware signals an event.

Signed-off-by: Matthew Garrett <mjg59@srcf.ucam.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:45 -04:00
Alan Cox
b3a706014e libata: Add a drivers/ide style DMA disable
This is useful when debugging, handling problem systems, or for
distributions just to get the system installed so it can be sorted
out later.

This is a bit smarter than the old IDE one and lets you do

libata.dma=0	Disable all PATA DMA like old IDE
libata.dma=1	Disk DMA only
libata.dma=2	ATAPI DMA only
libata.dma=4	CF DMA only

(or combinations thereof - 0,1,3 being the useful ones I suspect)

(I've split CF as it seems to be a seperate case of pain and suffering
different to the others and caused by assorted PIO wired adapters etc)

Signed-off-by: Alan Cox <alan@redhat.com>

[edited to work on SATA too, changing name from 'pata_dma' to 'dma']
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-12 14:55:45 -04:00
Peer Chen
7100819f5f ahci: Add MCP79 support to AHCI driver
Signed-off-by: Peer Chen <peerchen@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:45 -04:00
Robert Hancock
1333e19434 libata: add human-readable error value decoding
This adds human-readable decoding of the ATA status and error registers
(similar to what drivers/ide does) as well as the SATA Serror register
to libata error handling output.  This prevents the need to pore
through standards documents to figure out the meaning of the bits
in these registers when looking at error reports.  Some bits that
drivers/ide decoded are not decoded here, since the bits are either
command-dependent or obsolete, and properly parsing them would add
too much complexity.

Signed-off-by: Robert Hancock <hancockr@shaw.ca>

[edited slightly to make output a bit more symmetric]
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:45 -04:00
Tejun Heo
6949b9148d ahci: implement AHCI_HFLAG_NO_PMP
Of course some controllers lie about PMP support.  Black list them.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:44 -04:00
Tejun Heo
417a1a6d3d ahci: move host flags over to pi.private_data
Private pi.flags area is full and we need more private flags.  Move
host private flags over to pi.private_data.  During initialization,
these flags are copied to hpriv->flags.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:44 -04:00
Tejun Heo
7d50b60b5e ahci: implement PMP support
Implement AHCI PMP support.  ahci only supports command based
switching.  Also, for some reason, NCQ over PMP doesn't work now.
Other than that, everything works.

Tested on ICH9R, JMB360/363 + SIMG3726, 4726 and 5744.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Forrest Zhao <forrest.zhao@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:44 -04:00
Tejun Heo
238180343e sata_sil24: implement PORT_RST
As DEV_RST (hardreset) sometimes fail to recover the controller
(especially after PMP DMA CS errata).  In such cases, perform PORT_RST
prior to DEV_RST.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:44 -04:00
Tejun Heo
3454dc6922 sata_sil24: implement PMP support
Implement PMP support.  sil24 supports full FIS-switching.  However,
it has a PMP DMA CS errata which requires port-wide resetting if
commands are outstanding to three or more devices when an error occurs
on one of them.

ATAPI commands often result in CHECK SENSE and it's crucial to not
reset them before fetching sense data.  Unfortunately, ATAPI CHECK
SENSE causes a lot of problem if command is outstanding to any other
device usually resulting in port-wide reset.  So, sata_sil24
implements sil24_qc_defer() which guarantees ATAPI command is run by
itself.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:44 -04:00
Tejun Heo
31f8838444 libata-pmp: implement qc_defer for command switching PMP support
Implement sata_pmp_qc_defer_cmd_switch() - standard qc_defer for
command switching PMP support.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:44 -04:00
Tejun Heo
d0df8b5d0f libata-pmp: extend ACPI support to cover PMP
Extend ata_acpi_associate_sata_port() such that it can handle PMP and
call it when PMP is attached and detached.

Build breakage when !CONFIG_ATA_ACPI was spotted and fixed by Petr
Vandrovec.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Petr Vandrovec <petr@vandrovec.name>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:44 -04:00
Tejun Heo
633273a3ed libata-pmp: hook PMP support and enable it
Hook PMP support into libata and enable it.  Connect SCR and probing
functions, and update ata_dev_classify() to detect PMP.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:44 -04:00
Tejun Heo
3af9a77af9 libata-pmp: implement Port Multiplier support
Implement Port Multiplier support.  To support PMP, a LLDD has to
supply ops->pmp_read() and pmp_write().  If non-null, ->pmp_attach and
->pmp_detach are called on PMP attach and detach, respectively.

->pmp_read/write() can be called while the port is frozen, so they
must be implemented by polling.  This patch supplies several helpers
to ease ->pmp_read/write() implementation.

Also, irq_handler and error_handler must be PMP aware.  Most of PMP
aware EH can be done by calling ata_pmp_do_eh() with appropriate
methods.  PMP EH uses separate set of reset methods and this patch
implements standard prereset, hardreset and postreset methods.

This patch only implements PMP support.  The next patch will integrate
PMP into the reset of libata and thus enable PMP support.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:44 -04:00
Tejun Heo
3495de7336 libata-pmp: update ata_eh_reset() for PMP
PMP always requires SRST to be enabled.  Also, hardreset reports
classification code from the first device when PMP is attached, not
from the PMP.  Update ata_eh_reset() such that followup softreset is
performed if the controller is PMP capable and the host link is being
reset.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:43 -04:00
Alan Cox
93328e1145 [PATCH] libata: Fix HPA handling regression
Restore the support for handling drives that report one sector too many
(ie SCSI not ATA style). This worked before the HPA update but was
removed in that process.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:43 -04:00
Jeff Garzik
54174db300 [libata] ata_piix: add HP compaq laptop to short cable list
Reported by Andreas Messer.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:43 -04:00
Alan Cox
c4b5b7b6c4 pata_ns87415: Initial cut at 87415/87560 IDE support
Signed-off-by: Alan Cox <alan@redhat.com>
[plus SuperIO fixes by Kyle McMartin]
[plus a cleanup from me]
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:43 -04:00
David Milburn
0b0a43e04e libata-core: blacklist HITACHI HDS drives using wildcard blacklist matching
Blacklist HITACHI HDS7250SASUN500G and HITACHI HDS7225SBSUN250G
drives using wildcard matching.

Signed-off-by David Milburn <dmilburn@redhat.com>

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:43 -04:00
Tejun Heo
7f567620ed libata: update spurious NCQ completion blacklist
* The firmware version of ST3160812AS is "3.ADJ" no "3.AD".
* Add several entries from various sources.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:43 -04:00
Alan Cox
06b74dd28f pata_pdc202xx_old MWDMA fixes, and notes
I've been doing an audit of this driver to try and find out why we have
problems with some Clevo boxes that use it. Didn't get anywhere other
than to discover all the bug reporters I have use vmware, which may or
may not be chance.

In the process however I did find out our MWDMA2 performance was a bit
low and code review showed the MWDMA0/2 timings are reversed due to a
thinko in the table ordering

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:42 -04:00
Alan Cox
21d2c925d3 pata_atiixp: Audit notes on locking
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:42 -04:00
Jeff Garzik
3cc3eb1148 [libata] AHCI: enable AHCI mode, before using AHCI reset
AHCI spec says host-reset bit may only be set when the ahci-enable bit
is also set.

Noticed by Peer Chen <peerchen@gmail.com>

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:42 -04:00
Satyam Sharma
b90fe23bd5 libata: Fix build failure on ppc64 drivers/ata/pata_scc.c
Little fixlets, that the build started erroring / warning about:

drivers/ata/pata_scc.c: In function 'scc_bmdma_status':
drivers/ata/pata_scc.c:734: error: structure has no member named 'active_tag'
drivers/ata/pata_scc.c: In function 'scc_pata_prereset':
drivers/ata/pata_scc.c:866: warning: passing arg 1 of 'ata_std_prereset' from incompatible pointer type
drivers/ata/pata_scc.c: In function 'scc_error_handler':
drivers/ata/pata_scc.c:908: warning: passing arg 2 of 'ata_bmdma_drive_eh' from incompatible pointer type
drivers/ata/pata_scc.c:908: warning: passing arg 3 of 'ata_bmdma_drive_eh' from incompatible pointer type
drivers/ata/pata_scc.c:908: warning: passing arg 5 of 'ata_bmdma_drive_eh' from incompatible pointer type
make[2]: *** [drivers/ata/pata_scc.o] Error 1

Signed-off-by: Satyam Sharma <satyam@infradead.org>
Cc: Alan Cox <alan@redhat.com>
Cc: Mel Gorman <mel@skynet.ie>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:42 -04:00
Tejun Heo
b6d6c74628 sata_via: kill SATA_PATA_SHARING register handling
The SATA_PATA_SHARING register doesn't have anything to do with the
SATA part of the controller.  It indicates whether an extern SATA PHY
is attached to the PATA part of the controller and if so how it is
wired.  As the PATA part is driven by pata_via, sata_via has no reason
to care about that.  Also, pata_via should work fine under all
configurations.

This patch removes unnecessary attach failures.  It seems recent via
chipsets are defaulting to different values or are actually connected
to SATA PHY triggering this more often.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:42 -04:00
Tejun Heo
1e582ba4ef libata: fix ata_set_max_sectors()
In ata_set_max_sectors(), the highest nibble in LBA28 mode was
missing.  This made drives sized between 8G and 128G with HPA turned
on to be resized to under 8G.  Fix it.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:42 -04:00
Tejun Heo
7d77b24708 libata-pmp-prep: implement sata_async_notification()
AN serves multiple purposes.  For ATAPI, it's used for media change
notification.  For PMP, for downstream PHY status change notification.
Implement sata_async_notification() which demultiplexes AN.

To avoid unnecessary port events, ATAPI AN is not enabled if PMP is
attached but SNTF is not available.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Kriten Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:42 -04:00
Tejun Heo
e31e8531d6 libata-pmp-prep: implement ATA_HORKAGE_SKIP_PM
Some pseudo devices fail PM commands unnecessarily aborting system
suspend.  Implement ATA_HORKAGE_SKIP_PM which makes libata skip PM
commands for these devices.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:41 -04:00
Tejun Heo
668108d73b libata-pmp-prep: implement EH fast-fail path
If PMP itself becomes inaccessible while trying to link a downstream
link, spending time to recover the downstream link doesn't make any
sense.  Make EH skip retry and fail fast if -ERESTART is received.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:41 -04:00
Tejun Heo
f9df58cb27 libata-pmp-prep: implement ATA_LFLAG_DISABLED
Implement ATA_LFLAG_DISABLED.  The flag indicates the link is disabled
due to EH recovery failure.  While a link is disabled, no EH action is
taken on the link and suspend/resume become noop too.

This will be used by PMP links to manage failed links.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:41 -04:00
Tejun Heo
fd995f7039 libata-pmp-prep: implement ATA_LFLAG_NO_RETRY
Some PMP links are connected to internal pseudo devices which may come
and go depending on situation.  There's no reason to try hard to
recover them.  ATA_LFLAG_NO_RETRY tells EH to not retry if the device
attached to the link fails.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:41 -04:00
Tejun Heo
ae791c0569 libata-pmp-prep: implement ATA_LFLAG_NO_SRST, ASSUME_ATA and ASSUME_SEMB
Some links on some PMPs locks up on SRST and/or report incorrect
device signature.  Implement ATA_LFLAG_NO_SRST, ASSUME_ATA and
ASSUME_SEMB to handle these quirky links.  NO_SRST makes EH avoid
SRST.  ASSUME_ATA and SEMB forces class code to ATA and SEMB_UNSUP
respectively.  Note that SEMB isn't currently supported yet so the
_UNSUP variant is used.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:41 -04:00
Tejun Heo
da917d69d0 libata-pmp-prep: implement qc_defer helpers
Implement ap->nr_active_links (the number of links with active qcs),
ap->excl_link (pointer to link which can be used by ->qc_defer and is
cleared when a qc with ATA_QCFLAG_CLEAR_EXCL completes), and
ata_link_active().

These can be used by ->qc_defer() to implement proper command
exclusion.  This set of helpers seem enough for both sil24 (ATAPI
exclusion needed) and cmd-switching PMP.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:41 -04:00
Tejun Heo
31cc23b349 libata-pmp-prep: implement ops->qc_defer()
Controllers which support PMP have various restrictions on which
combinations of commands are allowed to what number of devices
concurrently.  This patch implements ops->qc_defer() which determines
whether a qc can be issued at the moment or should be deferred.

If the function returns ATA_DEFER_LINK, the qc will be deferred until
a qc completes on the link.  If ATA_DEFER_PORT, until a qc completes
on any link.  The defer conditions are advisory and in general
ATA_DEFER_LINK can be considered as lower priority deferring than
ATA_DEFER_PORT.

ops->qc_defer() replaces fixed ata_scmd_need_defer().  For standard
NCQ/non-NCQ exclusion, ata_std_qc_defer() is implemented.  ahci and
sata_sil24 are converted to use ata_std_qc_defer().

ops->qc_defer() is heavier than the original mechanism because full qc
is prepped before determining to defer it, but various information is
needed to determine defer conditinos and fully translating a qc is the
only way to supply such information in generic manner.

IMHO, this shouldn't cause any noticeable performance issues as

* for most cases deferring occurs rarely (except for NCQ-aware
  cmd-switching PMP)
* translation itself isn't that expensive
* once deferred the command won't be repeated until another command
  completes which usually is a very long time cpu-wise.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:41 -04:00
Tejun Heo
fb7fd61454 libata-pmp-prep: make a number of functions global to libata
Make a number of functions from libata-core.c and libata-eh.c global
to libata (drivers/ata/libata.h).  These will be used by PMP.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:41 -04:00
Tejun Heo
422c9daa8b libata-pmp-prep: add @new_class to ata_dev_revalidate()
Consider newly found class code while revalidating.  PMP resetting
always results in valid class code and issuing PMP commands to
ATA/ATAPI device isn't very attractive.  Add @new_class to
ata_dev_revalidate() and check class code for revalidation.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:40 -04:00
Tejun Heo
854c73a2f1 libata: misc updates for AN
Update AN support in preparation of PMP support.

* s/ata_id_has_AN/ata_id_has_atapi_AN/
* add AN enabled reporting during configuration
* add err_mask to AN configuration failure reporting
* update LOCKING comment for ata_scsi_media_change_notify()
* check whether ATA dev is attached to SCSI dev ata_scsi_media_change_notify()
* set ATA_FLAG_AN in ahci and sata_sil24

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Kriten Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:40 -04:00
Jeff Garzik
c78968bb0f [libata] SCSI: simulator version, not device version, belongs in VPD
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:40 -04:00
Jeff Garzik
24f7568666 [libata] SCSI: clean up R/W recovery mode page
Clear ARRE, we don't do auto-reallocation on reads, just on writes.

Also, hardcode the size of the array using RW_RECOVERY_MPAGE_LEN,
following the style of the surrounding code.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:40 -04:00
Jeff Garzik
00bd02027f [libata] SCSI: improve FORMAT UNIT; minor code cleanups
* SAT specifies that FORMAT UNIT should be translated into a series
  of READ and WRITE commands that zero the ATA device.  That is far too
  cumbersome to bother with.

  Since we don't actually format the device, the old behavior of
  always returning success was inaccurate.  Change FORMAT UNIT from
  returning success immediately (old behavior) to always returning
  an error (new behavior).

* Add some comments around SYNCHRONIZE CACHE

* Shuffle scsi command code around a bit, so that things are close
  to alphabetic order.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-12 14:55:40 -04:00
Jeff Garzik
4539414552 [libata] Slightly improved no-op REQUEST SENSE, SEND DIAGNOSTIC
A few pedantic apps care about missing or lame "mandatory" SCSI
commands, so

REQUEST SENSE -- as we autosense, R.S. just returns zeroes

SEND DIAGNOSTIC -- our default (no-op) self-test succeeds, all
		   other requests for testing fail.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:40 -04:00
Jeff Garzik
ad355b4628 [libata] SCSI: support INQUIRY page 89h (ATA info page)
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:40 -04:00
Jason Gaston
d4155e6f13 ahci: RAID mode SATA patch for Intel Tolapai
Signed-off-by: Jason Gaston <jason.d.gaston@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:39 -04:00
Tejun Heo
d7fbee0507 libata: assume ATA_DEV_ATA on diagnostic failure
Certain device which reports diagnostic failure also reports invalid
device signature.  Assume ATA_DEV_ATA on diagnostic failure if reset
indicates device presence.

This is fix for bugzilla bug 8784.

  http://bugzilla.kernel.org/show_bug.cgi?id=8784

Signed-off-by: Tejun Heo <htejun@gmail.com>
Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Edward Amsden <amsden_linux@earthlink.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:39 -04:00
Tejun Heo
3f19859ee9 libata: update ata_dev_try_classify() arguments
Make ata_dev_try_classify() take a pointer to ata_device instead of
ata_port/port_number combination for consistency and add @present
argument.  @present indicates whether the device seems present during
reset.  It's the result of TF access during softreset and link
onlineness during hardreset.  @present will be used to improve
diagnostic failure handling.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:39 -04:00
Tejun Heo
7a234aff3d ahci: reimplement port_map handling
Reimplement port_map handling such that

1. Non-zero PORTS_IMPL value is always examined and used if consistent
   with cap.n_ports.

2. When PI and cat.n_ports are inconsistent, honor cap.n_ports and
   force port_map to be ((1 << cap.n_ports) - 1).

3. There were two separate places dealing with port_map.  Unify them
   to one.

As all newer ahci chips seem to get PI correct and older ones usually
have zero PI.  Controllers with holes in PI are very unlikely to screw
up PI, so #2 makes more sense than following inconsistent PI.

Without this change, not setting ATA_FLAG_HONOR_PI when it's needed
results in weird detection failure.  This changed logic should be able
to handle all known cases correctly automatically.

Verified on ICH6 (reports 0 PI), ICH8 (with holes in port_map), ICH9,
JMB360 and JMB363.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:39 -04:00
Tejun Heo
05027adccc libata: remiplement ata_hpa_resize()
This patch reimplement ata_hpa_resize() such that...

* All HPA related decisions are made inside ata_hpa_resize() proper.
  ata_hpa_resize() returns 0 if configuration can proceed, -errno if
  device needs to be reset and reconfigured.

* All errors are handled properly.  If HPA unlocking isn't requested,
  HPA handling is disabled automatically to avoid unnecessary device
  detection failure.

* Messages are trimmed.  HPA detection message is printed only during
  initial configuration.  HPA unlocked message is printed only during
  initial configuration or unlocking results in different size.

* Instead of using sectors returned in TF of SET_MAX, re-read IDENTIFY
  data as that's the value the device is going to use.

* It's called early during ata_dev_configure() as IDENTIFY data might
  change after resizing.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:39 -04:00
Tejun Heo
c728a9149f libata: clean up read/set native_max address functions
Merge ata_read_native_max_addres_ext() into ata_read_native_max_address()
and combine ata_set_native_max_address_ext() and
ata_set_native_max_address() into ata_set_max_sectors().

* reduce duplicate code
* return 0 or -errno depending on error conditions
* report if command fails
* use ATA_LBA instead of 0x40

This is in preparation of ata_hpa_resize() update.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:39 -04:00
Tejun Heo
db6f8759d0 libata: move ata_id_n_sectors() upward
Move ata_id_n_sectors() upward right below ata_id_c_string().  This is
to accomodate later changes.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:39 -04:00
Jason Gaston
e2d352af6d ata_piix: replace spaces with tabs
This patch removes some incorrect formatting spaces and replaces them with tabs.

Signed-off-by: Jason Gaston <jason.d.gaston@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:39 -04:00
Boaz Harrosh
7120165cf3 libata-scsi: convert to use the data buffer accessors
simple search-and-replace of direct scsi_cmnd access to
  use the data buffer accessors.

Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:38 -04:00
Boaz Harrosh
e10b8c3f5f libata-scsi: Remove !use_sg code paths
This is a minimal patch needed to remove use of !use_sg
     but it is not a complete clean up of the !use_sg paths.
     Libata-core still has the qc->flags & ATA_QCFLAG_SG
     and !qc->n_elem code paths. Perhaps an ata maintainer
     would have a go at it.

     - TODO: further cleanup of qc->flags & ATA_QCFLAG_SG
       and !qc->n_elem code paths in libata-core
     - TODO: Use scsi_dma_{map,unmap} where applicable.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:38 -04:00
Alan Cox
d2a84f4789 pdc2027x: Switch properly to ioread/iowrite
Some iomap functions were still using readl/writel and friends which
happens to work on most platforms but is not correct.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:38 -04:00
Alan Cox
c645fd3425 libata: Update experimental tags to reflect reality better
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:38 -04:00
Jeff Garzik
539cc7c70c [libata] blacklist Maxtor*BANC* using new wildcard blacklist matching
Support the use of '*' in model_num and model_rev entries
in ata_device_blacklist[].

Based largely on David Milburn's "libata-core: support wildcard matching
in ata_blacklist_entry" patch.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:38 -04:00
Jeff Garzik
ec300d99ef [libata] ata_piix: Use more-robust form of array initialization
Use a form of array init that is less fragile, less sensitive to trivial
typos and ordering mismatches.

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:38 -04:00
Kristoffer Nyborg Gregertsen
7c9ef8e418 AVR32 PATA driver
Updated and simplified driver. Use only register transfer timing for both
data and register transfers. This gives poorer performance in PIO1 and 2,
but should not be a problem in PIO3 and 4, correct me if I'm wrong :)

The driver works very we'll but I still wonder about the interrupts. I have
an interrupt line, that works nicely when POLLING flag is not set. The
problem is the number of interrupts that eat away my CPU cycles.

When using the POLLING flag there seem to be some interrupts that dosen't get
cleared. Furthermore the device dosen't drive INTRQ high, it stays at 2.5 volts
and generates a lot of interrupts due to ripple / noise. What to do?

Signed-off-by: Kristoffer Nyborg Gregertsen <kngregertsen@norway.atmel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:37 -04:00
Sonic Zhang
d830d1731f libata driver for bf548 on chip ATAPI controller.
Fix all issues pointed out in Jeff's email.

Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:37 -04:00
Tejun Heo
a1e10f7e68 libata: move EH repeat reporting into ata_eh_report()
EH is sometimes repeated without any error or action.  For example,
this happens when probing IDENTIFY fails because of a phantom device.
In these cases, all the repeated EH does is making sure there is no
unhandled error or pending action and return.  This repeation is
necessary to avoid losing any event which occurred while EH was in
progress.

Unfortunately, this dry run causes annonying "EH pending after
completion" message.  This patch moves the repeat reporting into
ata_eh_report() such that it's more compact and skipped on dry runs.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Mikael Pettersson <mikep@it.uu.se>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:37 -04:00
Tejun Heo
cbcdd87593 libata: implement and use ata_port_desc() to report port configuration
Currently, port configuration reporting has the following problems.

* iomapped address is reported instead of raw address
* report contains irrelevant fields or lacks necessary fields for
  non-SFF controllers.
* host->irq/irq2 are there just for reporting and hacky.

This patch implements and uses ata_port_desc() and
ata_port_pbar_desc().  ata_port_desc() is almost identical to
ata_ehi_push_desc() except that it takes @ap instead of @ehi, has no
locking requirement, can only be used during host initialization and "
" is used as separator instead of ", ".  ata_port_pbar_desc() is a
helper to ease reporting of a PCI BAR or an offsetted address into it.

LLD pushes whatever description it wants using the above two
functions.  The accumulated description is printed on host
registration after "[S/P]ATA max MAX_XFERMODE ".

SFF init helpers and ata_host_activate() automatically add
descriptions for addresses and irq respectively, so only LLDs which
isn't standard SFF need to add custom descriptions.  In many cases,
such controllers need to report different things anyway.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:37 -04:00
Albert Lee
e923090ddd libata: pata_pdc2027x PLL detection minor cleanup
Minor cleanup to remove the unneeded rmb()s per Jeff's advice. Also removed the
pll_clock < 0 check since pll_clock now guaranteed to be >= 0 after Mikael's patch.

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:37 -04:00
Alan Cox
614fe29bd9 libata: Spot bridge chips
If we have a PATA cable with a SATA drive on it then we've found a
bridge and we can flip the cable type. This fixes some cable detect
problems with SATA bridges on chipsets and misdetected cable types.

In theory cable detection and mode limiting is needed if you put a
SATA/PATA bridge on a 40 wire cable, but I see no way to deal with
that other than to point out its not a good idea anyway.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:37 -04:00
Alan Cox
81ad1837b5 libata: Switch most of the remaining SFF drivers to ata_sff_port_start
This avoids allocating DMA buffers if not needed but at the moment is
mostly just a neatness item.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:36 -04:00
Jeff Garzik
ac8869d56d [libata] Remove ->port_disable() hook
It was always set to ata_port_disable().  Removed the hook, and replaced
the very few ap->ops->port_disable() callsites with direct calls to
ata_port_disable().

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:35 -04:00
Alan Cox
7d73a363de libata pata_via: ACPI checks for 80wire cable
Testing this on the VIA boards fixes several problems with otherwise
undetectable SATA bridge chips

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:34 -04:00
Alan Cox
e708eb9bc0 libata pata_amd: ACPI checks for 80wire cable
We can make use of this on the pata_amd driver as many Nvidia devices
don't have reliable cable detect.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:34 -04:00
Alan Cox
e1ddb4b6a2 [libata] add ACPI cable detect API
Combined from two Alan Cox patches:

1) libata: ACPI checks for 80wire cable

We can use the ACPI mode information with several drivers as a hint to
cable type. If the ACPI mode set by the BIOS is faster than UDMA33 then
we know the BIOS thinks there are 80wire cables. If it doesn't set such a
mode or it has no ACPI method then we get no further information and can
rely on existing approaches

Introduce the function headers needed. Null it out for non ACPI boxes

Signed-off-by: Alan Cox <alan@redhat.com>

2) libata: ACPI checks for 80wire cable

Provide actual methods for checking if the ACPI support thinks the cable
is 80wire, or doesn't know

Signed-off-by: Alan Cox <alan@redhat.com>

Combined into a single changeset and
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:34 -04:00
Jeff Garzik
6d32d30f55 [libata] Remove ->irq_ack() hook, and ata_dummy_irq_on()
* ->irq_ack() is redundant to what the irq handler already
  performs... chk-status + irq-clear.  Furthermore, it is only
  called in one place, when screaming-irq-debugging is enabled,
  so we don't want to bother with a hook just for that.

* ata_dummy_irq_on() is only ever used in drivers that have
  no callpath reaching ->irq_on().  Remove .irq_on hook from
  those drivers, and the now-unused ata_dummy_irq_on()

Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:34 -04:00
Andrew Morton
b8773531cc libata-add-irq_flags-to-struct-pata_platform_info-fix
Remove unneeded, undesirable cast of void*.

Cc: Jeff Garzik <jeff@garzik.org>
Cc: Sonic Zhang <sonic.adi@gmail.com>
Cc: Tejun Heo <htejun@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:33 -04:00
Christian Lamparter
2eb829e934 ata_piix: disallow UDMA 133 on ICH5 & ICH7
There is another outstanding issue with ata_piix.c.  Intel has never
officially supported anything faster than PATA 100MB/s.

But, the ata_piix.c driver "define" the ICH5 & ICH7 as UDMA6 (aka 133MB/s)
capable.  [ Well, no one has probably noticed it before, because there is bug
in do_pata_set_dmamode...  Just look at
libata_atapiix_enable_real_udma133.patch and you'll see what wrong with it.  ]

Here are Intel's datasheets for the affected chipsets: ICH5 Datasheet:
http://www.intel.com/design/chipsets/datashts/252516.htm (See note on page
183: "...  the ICH5 supports reads at the maximum rate of 100MB/s.")

ICH7 Datasheet: http://www.intel.com/design/chipsets/datashts/307013.htm (See
first note on page 190: "...  the ICH7 supports reads at the maximum rate of
100MB/s.")

They are two different ways to deal with it:

- Either -

1. replace all ich_pata_133 with ich_pata_100.
   (libata_atapiix_disable_udma6.diff - diff from 2.6.22 )

- Or -

2. keep all ich_pata_133 and fix the bug in "do_pata_set_dmamode".
   (libata_atapiix_enable_real_udma133.patch - diff from 2.6.22) If there are
   any concerns about the safety of the patch patch:
   http://lkml.org/lkml/2007/7/6/292 (It was already tested by an Intel
   employee, but I guess a bit more user input is necessary here...  )

This patch implements 1.

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Tejun Heo <htejun@gmail.com>
Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:33 -04:00
Kristen Carlson Accardi
a738492501 ahci: Store interrupt value
Use a stored value for which interrupts to enable.  Changing this allows
us to selectively turn off certain interrupts later and have them
stay off.

Signed-off-by:  Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:33 -04:00
Kristen Carlson Accardi
2f2949680a [libata] ahci: send event when AN received
When we get an SDB FIS with the 'N' bit set, we should send
an event to user space to indicate that there has been a
media change.  This will be done via the scsi device.

Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:33 -04:00
Kristen Carlson Accardi
9f45cbd3f0 [libata] check for SATA async notify support
Check to see if an ATAPI device supports Asynchronous Notification.
If so, enable it, if the host controller supports AN.

Signed-off-by: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:33 -04:00
Alan Cox
05d1efffdc pata_cmd64x: Set up MWDMA modes properly
Set the MWDMA timing by updating the correct registers.  Split the PIO path as
this is mostly shared code.  Wants testing.

Signed-off-by: Alan Cox <alan@redhat.com>
Tested-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:33 -04:00
Alan Cox
4f34337b1f libata: Note that our cache flush code needs fixing up
Remembered this while doing auditing and code review versus the specs

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:32 -04:00
Alan Cox
50a9901878 libata-core: Document some limits/assumptions about ID_ATA
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:32 -04:00
Mark Lord
baf4fdfaaf libata: add support for ATA_16 on ATAPI
Add support for issuing ATA_16 passthru commands to ATAPI devices
managed by libata.  It requires the previous CDB length fix patch.

A boot/module parameter, "atapi_passthru16=0" can be used to globally
disable this feature, if ever desired.

tj: restructured __ata_scsi_queuecmd() according to Jeff's suggestion.

Signed-off-by: Mark Lord <liml@rtr.ca>
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:32 -04:00
Albert Lee
4cc980b34b libata: move ata_altstatus() to pio data xfer functions
Move ata_altstatus() out from ata_hsm_move() to the pio data xfer
functions like ata_pio_sectors() and atapi_pio_bytes() where it makes
more sense.

Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:32 -04:00
Alan Cox
0bc2a79a20 libata: Correct IORDY handling
Debugging a report of a problem with an ancient solid state disk showed
up some problems in the IORDY handling

1.	We check the wrong bit to see if the device has IORDY
2.	Even then some ancient creaking piles of crap don't support
	SETXFER at all.

The cases it fixes are obscure and the risk of side effects is slight
but possible. This also moves us slightly closer to supporting original
MFM/RLL disks with libata.

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:32 -04:00
Tejun Heo
e3667ebf85 libata-link: update Power Management to handle PMP links
Update Power Management to consider PMP links.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:32 -04:00
Tejun Heo
41bda9c980 libata-link: update hotplug to handle PMP links
Update hotplug to handle PMP links.  When PMP is attached, the PMP
number corresponds to C of SCSI H:C:I:L.  While at it, change argument
to ata_find_dev() to @devno from @id to avoid confusion with SCSI
device ID.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:32 -04:00
Tejun Heo
9b1e2658fa libata-link: update EH to deal with PMP links
Update ata_eh_autopsy(), ata_eh_report(),
ata_eh_revalidate_and_attach() and ata_eh_recover() to deal with PMP
links.  ata_eh_autopsy() and ata_eh_report() updates are
straightforward.  They just repeat the same operation over all
configured links.  The only change to ata_eh_revalidate_and_attach()
is avoiding calling ->cable_select() on non-host ports.

ata_eh_recover() update is more complex as it first processes all
resets and then performs the rest.  This is necessary as thawing with
some links in unknown state can be dangerous.  ehi->action is cleared
on successful recovery of a link to avoid repeating recovery due to
failures in other links.

ata_eh_recover() iterates over only PMP links if PMP is attached, and,
on failure, the failing link is returned in @failed_link instead of
disabling devices directly.  These are to integrate ata_eh_recover()
into PMP EH later.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:32 -04:00
Tejun Heo
cf1b86c8ab libata-link: update ata_scsi_error() to handle PMP links
Update ata_scsi_error() to handle PMP links.  As error conditions can
occur on both host and PMP links, __ata_port_for_each_link() is used.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:32 -04:00
Tejun Heo
8989805d6d libata-link: add PMP links
Add link->pmp, ap->nr_pmp_links, ap->pmp_link[], and implement/update
link helpers.

printk helpers are updated such that port and link are identifed as
'ataP:' if no PMP is attached, while device is identified as
'ataP.DD:'.  If PMP is attached, they become 'ataP:', 'ataP.LL:' and
'ataP.LL' - ie. link and device are identified their PMP number.

If PPM is attached (ap->nr_pmp_links != 0), ata_for_each_link()
iterates over PMP links, while __ata_for_each_link() iterates over the
host link + PMP links.  If PMP is not attached (ap->nr_pmp_links ==
0), both iterate over only the host link.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:31 -04:00
Tejun Heo
dbd826168d libata-link: implement ata_link_abort()
Implement ata_link_abort().

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:31 -04:00
Tejun Heo
4fb37a25b9 libata-link: separate out link initialization functions
Separate out link initialization into ata_link_init() and
ata_link_init_sata_spd().

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:31 -04:00
Tejun Heo
0c88758b5a libata-link: make two port flags HRST_TO_RESUME and SKIP_D2H_BSY link flags
HRST_TO_RESUME and SKIP_D2H_BSY are link attributes.  Move them to
ata_link->flags.  This will allow host and PMP links to have different
attributes.  ata_port_info->link_flags is added and used by LLDs to
specify these flags during initialization.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:31 -04:00
Tejun Heo
0260731f01 libata-link: linkify config/EH related functions
Make the following functions deal with ata_link instead of ata_port.

* ata_set_mode()
* ata_eh_autopsy() and related functions
* ata_eh_report() and related functions
* suspend/resume related functions
* ata_eh_recover() and related functions

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:31 -04:00
Tejun Heo
cc0680a580 libata-link: linkify reset
Make reset methods and related functions deal with ata_link instead of
ata_port.

* ata_do_reset()
* ata_eh_reset()
* all prereset/reset/postreset methods and related functions

This patch introduces no behavior change.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:31 -04:00
Tejun Heo
955e57dfde libata-link: linkify EH action helpers
Make ata_eh_about_to_do() and ata_eh_done() deal with ata_link instead
of ata_port.

This patch introduces no behavior change.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:30 -04:00
Tejun Heo
936fd73286 libata-link: linkify PHY-related functions
Make the following PHY-related functions to deal with ata_link instead
of ata_port.

* sata_print_link_status()
* sata_down_spd_limit()
* ata_set_sata_spd_limit() and friends
* sata_link_debounce/resume()
* sata_scr_valid/read/write/write_flush()
* ata_link_on/offline()

This patch introduces no behavior change.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:30 -04:00
Tejun Heo
f58229f806 libata-link: implement and use link/device iterators
Multiple links and different number of devices per link should be
considered to iterate over links and devices.  This patch implements
and uses link and device iterators - ata_port_for_each_link() and
ata_link_for_each_dev() - and ata_link_max_devices().

This change makes a lot of functions iterate over only possible
devices instead of from dev 0 to dev ATA_MAX_DEVICES.  All such
changes have been examined and nothing should be broken.

While at it, add a separating comment before device helpers to
distinguish them better from link helpers and others.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:30 -04:00
Tejun Heo
9af5c9c97d libata-link: introduce ata_link
Introduce ata_link.  It abstracts PHY and sits between ata_port and
ata_device.  This new level of abstraction is necessary to support
SATA Port Multiplier, which basically adds a bunch of links (PHYs) to
a ATA host port.  Fields related to command execution, spd_limit and
EH are per-link and thus moved to ata_link.

This patch only defines the host link.  Multiple link handling will be
added later.  Also, a lot of ap->link derefences are added but many of
them will be removed as each part is converted to deal directly with
ata_link instead of ata_port.

This patch introduces no behavior change.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: James Bottomley <James.Bottomley@SteelEye.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:30 -04:00
Jeff Garzik
640fdb5049 [libata] pdc_adma: convert to new exception handling (EH) framework
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 14:55:30 -04:00
Linus Torvalds
000233e4d1 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6:
  [BNX2]: Refine napi poll loop.
  [TG3]: Refine napi poll loop.
2007-10-12 09:17:22 -07:00
Martin Schwidefsky
1462222b76 [S390] xpram: fix bio_end{_,}io typo
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:11 +02:00
Cornelia Huck
a2e5380197 [S390] 3215: Handle special console device.
The early console device is special as it already has all needed data
set and raw3215[0] allocated from con3215_init(). Therefore, it needs
special treatment in the probe function so it can be matched with the
3215 driver which is already owning it.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:11 +02:00
Heiko Carstens
2b12f996c9 [S390] vmwatchdog: fix broken inline assembly.
Constraint for err is wrong since it is preinitialized and the code
relies on it in case of an exception.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:10 +02:00
Michael Holzheu
1b9fd76e30 [S390] tape: Fix medium state handling
Currently there are situations, where the tape medium state (loaded, unloaded,
unknown) is not set correctly. The reason is that the medium association
field is used to determine the medium state. This not always leads to
correct results. To fix that we use another field of the medium sense
data instead.

Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:10 +02:00
Michael Holzheu
53a0868cb4 [S390] zcore: fix inline assembly in memcpy_real()
memcpy_real uses the mvcle instruction. This instruction alters all used
registers (source, destination and 2 x count). Therefore we have to flag
those registers as input/output registers (+d). In addition to that, we
have to specify, that we read from memory designated by "src" and write to
memory designated by "dest".

Signed-off-by: Michael Holzheu <holzheu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:09 +02:00
Robert P. J. Day
cebe0fe70f [S390] Remove obsolete recommendation for 8M ramdisk size.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:09 +02:00
Ursula Braun
c622498e5c [S390] qdio: change QDIO performance_stats error message priority
Signed-off-by: Ursula Braun <braunu@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2007-10-12 16:13:08 +02:00
vignesh babu
e108cebb21 [S390] is_power_of_2 in drivers/s390/block/dasd_int.h
Replacing n & (n - 1) for power of 2 check by is_power_of_2(n)

Signed-off-by: vignesh babu <vignesh.babu@wipro.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2007-10-12 16:13:07 +02:00
Heiko Carstens
b18a2db416 [S390] qdio: dont cast function pointers and use them to call functions.
According to C99 6.3.2.3 it's undefined what happens if a converted
pointer is used to call a function whose type is not compatible with
the pointed-to type.
That's what the qdio code is doing, so fix it.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:07 +02:00
Heiko Carstens
364c85584e [S390] Get rid of a bunch of sparse warnings again.
Also removes a bunch of ^L in drivers/s390/cio/cmf.c

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:06 +02:00
Ralph Wuerthner
2af48080e1 [S390] zcrypt: fix PCIXCC/CEX2C error recovery
Symptom:     zcrypt fails by setting all PCIXCC/CEX2C cards offline for a
             certain type of invalid keys.
Problem:     zcrypt does not handle rc=12/rs=769 request responses correctly
Solution:    modify convert_type86_ica() to handle these error codes correctly

Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:05 +02:00
Ralph Wuerthner
39aa7cf612 [S390] zcrypt: fix ap_reset_domain()
Resetting of a all queues within a domain requires that a domain must
be selected first.

Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:05 +02:00
Ralph Wuerthner
16db63fda0 [S390] zcrypt: remove duplicated struct CPRBX definition
Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com>
2007-10-12 16:13:04 +02:00
Heiko Carstens
731475c92e [S390] zcrypt: make init/exit functions static.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:03 +02:00
Cornelia Huck
3f4cf6e72f [S390] cio: Avoid machine check vs. not operational races.
There was the possibilty that an action like ccw_device_set_offline()
triggered by a device gone machine check might trigger a not oper
event. Unfortunately, this could lead to the situation that we tried
to unregister a subchannel twice: Once from the slow path evaluation,
and once via the not oper event.

Fix this by always using the same mechanism (css_schedule_eval()) for
triggering the unregister. This makes sure that unregistration will
only be done once. As an added bonus, it also simplyfies the code.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:02 +02:00
Cornelia Huck
e103178658 [S390] cio: Fix device attributes for early devices.
Don't forget to set dev->groups for early ccw devices like the
console device so the default attributes are created.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:01 +02:00
Cornelia Huck
1842f2b184 [S390] cio: Disable channel measurements (cmf) on shutdown/reboot.
Disable channel measurements for all ccw devices via the ccw bus's
shutdown method. Clear residual cmf related information that may be
in the schib when setting up a new subchannel.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:01 +02:00
Cornelia Huck
958974fb59 [S390] cio: Introduce ccw_bus_type.shutdown.
Introduce a shutdown method for the ccw bus that calls the driver
specific shutdown method in struct ccw_driver.
Switch zfcp to the new ccw_driver shutdown method.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:01 +02:00
Cornelia Huck
a55360df40 [S390] cio: Disable channel path measurements on shutdown/reboot.
Make sure channel path measurements are disabled via a reboot notifier
since we cannot rely on userspace to disable it again after enabling
it. This is 1. clean and 2. makes sure that channel path measurements
do not stay enabled after a reboot not involving a subsystem reset
(which would lead to the channel subsystem scribbling onto random
memory).

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:00 +02:00
Cornelia Huck
a0ea22c3d9 [S390] cio: Minor style fixes.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-10-12 16:13:00 +02:00
Cornelia Huck
b2ffd8e9a7 [S390] cio: Add docbook comments.
Comment a bunch of function in docbook style and convert existing
comments on structures to docbook.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2007-10-12 16:12:59 +02:00
Cornelia Huck
c02087162a [S390] cio: Kerneldoc comments for cmf.
- Fix existing kerneldoc-style comments.
- Move descriptions of functions from cmb.h to cmf.c.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2007-10-12 16:12:59 +02:00
Cornelia Huck
fc5019c5c7 [S390] cio: Fix some coding style issues in cmf.
Fix some formatting and correct a comment.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2007-10-12 16:12:59 +02:00
Cornelia Huck
fbf9772b8e [S390] cio: remove subchannel_add_files()
subchannel_add_files() no longer exists, remove from header.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2007-10-12 16:12:59 +02:00
Cornelia Huck
7c9f4e3aaa [S390] cio: rename css to channel_subsystems
Rename css[] to channel_subsystems[] to avoid name clashes.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2007-10-12 16:12:58 +02:00
Jeff Garzik
4b5a9b3d8e [ISDN] HiSax diva: split setup into three smaller functions
Just code movement, and the glue to call the new functions.

Preparation for hotplug APIs.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-12 09:16:49 -04:00
Jeff Garzik
7da0d9801b [ISDN] HiSax sedlbauer: move ISAPNP and PCI code into functions of their own
Prep for hotplug API conversion.  Just code movement (+glue).

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-12 09:16:49 -04:00
Jeff Garzik
1e5d82e18b [ISDN] HiSax elsa: split huge setup function into four smaller functions
Prep for hotplug API conversion.  Just code movement (+glue).

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-12 09:16:48 -04:00
Jeff Garzik
2fbde4c092 [ISDN] HiSax avm_pci: split setup into three smaller functions
Preparation for new ISA/PNP/PCI APIs.

Just code movement, and the glue to call the new functions.

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-12 09:16:48 -04:00
Jeff Garzik
bfc7c89f06 [ISDN] Remove CONFIG_PCI ifdefs from 100% PCI source code
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 09:16:48 -04:00
Jeff Garzik
60cc5147ae [ISDN] hysdn: convert to PCI hotplug API
Signed-off-by: Jeff Garzik <jeff@garzik.org>
2007-10-12 09:14:49 -04:00
Michael Chan
6dee642158 [BNX2]: Refine napi poll loop.
Need to read and store sblk->status_idx before checking for more work.
The status idx is later written back to the hardware when enabling
interrupts to acknowledge how much work has been processed.  If the
order is reversed, we can end up acknowledging work we haven't
processed.

When completing bnx2_poll(), we should always break out of the while
loop and return work_done instead of returning 0.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-12 02:01:21 -07:00
Michael Chan
4fd7ab5949 [TG3]: Refine napi poll loop.
Need to read and store sblk->status_tag before checking for more work.
The status tag is later written back to the hardware when enabling
interrupts to acknowledge how much work has been processed.  If the
order is reversed, we can end up acknowledging work we haven't
processed.

When we detect tx error, it is more correct to return the rx
work_done so far instead of 0.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-12 02:01:20 -07:00
Matt Carlson
9ce768ead8 [TG3]: Fix APE induced regression
This patch fixes a bug caused by the recent APE support added for 5761
devices.

Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11 22:17:20 -07:00
Stephen Hemminger
a7b850eaa1 [SKY2]: version 1.19
Update version to keep track of new changes.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11 22:17:19 -07:00
Stephen Hemminger
7138a0f591 [SKY2]: use netdevice stats struct
Use builtin statistics structure from net device.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11 22:17:19 -07:00
Stephen Hemminger
df3fe1f318 [SKY2]: fiber advertise bits initialization (trivial)
Put initialization in sequential order (same as other constants).

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11 22:17:18 -07:00
Stephen Hemminger
ff35164e72 [SKY2]: fix power settings on Yukon XL
Make sure PCI register for PHY power gets set correctly.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11 22:17:18 -07:00
Stephen Hemminger
295b54c490 [SKY2]: ethtool register reserved area blackout
Make sure and not dump reserved areas of device space.
Touching some of these causes machine check exceptions on boards
like D-Link DGE-550SX.

Coding note, used a complex switch statement rather than bitmap
because it is easier to relate the block values to the documentation
rather than looking at a encoded bitmask.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11 22:17:17 -07:00
Linus Torvalds
e86908614f Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (408 commits)
  [POWERPC] Add memchr() to the bootwrapper
  [POWERPC] Implement logging of unhandled signals
  [POWERPC] Add legacy serial support for OPB with flattened device tree
  [POWERPC] Use 1TB segments
  [POWERPC] XilinxFB: Allow fixed framebuffer base address
  [POWERPC] XilinxFB: Add support for custom screen resolution
  [POWERPC] XilinxFB: Use pdata to pass around framebuffer parameters
  [POWERPC] PCI: Add 64-bit physical address support to setup_indirect_pci
  [POWERPC] 4xx: Kilauea defconfig file
  [POWERPC] 4xx: Kilauea DTS
  [POWERPC] 4xx: Add AMCC Kilauea eval board support to platforms/40x
  [POWERPC] 4xx: Add AMCC 405EX support to cputable.c
  [POWERPC] Adjust TASK_SIZE on ppc32 systems to 3GB that are capable
  [POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers
  [POWERPC] 85xx: Enable FP emulation in MPC8560 ADS defconfig
  [POWERPC] 85xx: Killed <asm/mpc85xx.h>
  [POWERPC] 85xx: Add cpm nodes for 8541/8555 CDS
  [POWERPC] 85xx: Convert mpc8560ads to the new CPM binding.
  [POWERPC] mpc8272ads: Remove muram from the CPM reg property.
  [POWERPC] Make clockevents work on PPC601 processors
  ...

Fixed up conflict in Documentation/powerpc/booting-without-of.txt manually.
2007-10-11 21:55:47 -07:00
Linus Torvalds
5473074209 Merge branch 'upstream-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
* 'upstream-fixes' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  [libata] sata_mv: more S/G fixes
2007-10-11 21:47:20 -07:00
Jeff Garzik
6c08772e49 [libata] sata_mv: more S/G fixes
* corruption fix: we only want the lower 16 bits of length (0 == 64kb)

* ditto: the upper layer sets max-phys-segments to LIBATA_MAX_PRD,
  so we must reset it to own hw-specific length.

* delete unused mv_fill_sg() return value

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2007-10-12 00:16:23 -04:00
Grant Likely
287e5d6fcc [POWERPC] XilinxFB: Allow fixed framebuffer base address
Allow a fixed framebuffer address to be assigned to the framebuffer device
instead of allocating the framebuffer from the consistent memory pool.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-12 14:05:17 +10:00
Grant Likely
b4d6a7268f [POWERPC] XilinxFB: Add support for custom screen resolution
Some custom implementations of the xilinx fb can use resolutions other
than 640x480.  This patch allows the resolution to be specified in the
device tree or the xilinx_platform_data structure.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-12 14:05:17 +10:00
Grant Likely
01ba1e9d26 [POWERPC] XilinxFB: Use pdata to pass around framebuffer parameters
The call to xilinxfb_assign is getting unwieldy when adding features
to the Xilinx framebuffer driver.  Change xilinxfb_assign() to accept
a pointer to a xilinxfb_platform_data structure to prepare for adding
additition configuration options.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-12 14:05:17 +10:00
Linus Torvalds
ce9d3c9a6a Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (87 commits)
  mlx4_core: Fix section mismatches
  IPoIB: Allow setting policy to ignore multicast groups
  IB/mthca: Mark error paths as unlikely() in post_srq_recv functions
  IB/ipath: Minor fix to ordering of freeing and zeroing of tid pages.
  IB/ipath: Remove redundant link state checks
  IB/ipath: Fix IB_EVENT_PORT_ERR event
  IB/ipath: Better handling of unexpected GPIO interrupts
  IB/ipath: Maintain active time on all chips
  IB/ipath: Fix QHT7040 serial number check
  IB/ipath: Indicate a couple of chip bugs to userspace
  IB/ipath: iba6110 rev4 no longer needs recv header overrun workaround
  IB/ipath: Use counters in ipath_poll and cleanup interrupts in ipath_close
  IB/ipath: Remove duplicate copy of LMC
  IB/ipath: Add ability to set the LMC via the sysfs debugging interface
  IB/ipath: Optimize completion queue entry insertion and polling
  IB/ipath: Implement IB_EVENT_QP_LAST_WQE_REACHED
  IB/ipath: Generate flush CQE when QP is in error state
  IB/ipath: Remove redundant code
  IB/ipath: Future proof eeprom checksum code (contents reading)
  IB/ipath: UC RDMA WRITE with IMMEDIATE doesn't send the immediate
  ...
2007-10-11 19:43:13 -07:00
Linus Torvalds
038a5008b2 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (867 commits)
  [SKY2]: status polling loop (post merge)
  [NET]: Fix NAPI completion handling in some drivers.
  [TCP]: Limit processing lost_retrans loop to work-to-do cases
  [TCP]: Fix lost_retrans loop vs fastpath problems
  [TCP]: No need to re-count fackets_out/sacked_out at RTO
  [TCP]: Extract tcp_match_queue_to_sack from sacktag code
  [TCP]: Kill almost unused variable pcount from sacktag
  [TCP]: Fix mark_head_lost to ignore R-bit when trying to mark L
  [TCP]: Add bytes_acked (ABC) clearing to FRTO too
  [IPv6]: Update setsockopt(IPV6_MULTICAST_IF) to support RFC 3493, try2
  [NETFILTER]: x_tables: add missing ip6t_modulename aliases
  [NETFILTER]: nf_conntrack_tcp: fix connection reopening
  [QETH]: fix qeth_main.c
  [NETLINK]: fib_frontend build fixes
  [IPv6]: Export userland ND options through netlink (RDNSS support)
  [9P]: build fix with !CONFIG_SYSCTL
  [NET]: Fix dev_put() and dev_hold() comments
  [NET]: make netlink user -> kernel interface synchronious
  [NET]: unify netlink kernel socket recognition
  [NET]: cleanup 3rd argument in netlink_sendskb
  ...

Fix up conflicts manually in Documentation/feature-removal-schedule.txt
and my new least favourite crap, the "mod_devicetable" support in the
files include/linux/mod_devicetable.h and scripts/mod/file2alias.c.

(The latter files seem to be explicitly _designed_ to get conflicts when
different subsystems work with them - that have an absolutely horrid
lack of subsystem separation!)

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-11 19:40:14 -07:00
Linus Torvalds
19f71153b9 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/bart/ide-2.6: (24 commits)
  ide: use only ->set_pio_mode method for programming PIO modes (take 2)
  sis5513: don't change UDMA settings when programming PIO
  it8213/piix/slc90e66: don't change DMA settings when programming PIO
  alim15x3: PIO mode setup fixes
  siimage: fix ->set_pio_mode method to select PIO data transfer
  cs5520: don't enable VDMA in ->speedproc
  sc1200: remove redundant warning message from sc1200_tune_chipset()
  ide-pmac: PIO mode setup fixes (take 3)
  icside: fix ->speedproc to return on unsupported modes (take 5)
  sgiioc4: use ide_tune_dma()
  amd74xx/via82cxxx: use ide_tune_dma()
  ide: add ide_set{_max}_pio() (take 4)
  ide: Kconfig face-lift
  ide: move ide_rate_filter() calls to the upper layer (take 2)
  sis5513: add ->udma_filter method for chipset_family >= ATA_133
  ide: mode limiting fixes for user requested speed changes
  ide: add missing ide_rate_filter() calls to ->speedproc()-s
  ide: call udma_filter() before resorting to the UltraDMA mask
  ide: make jmicron match vendor and device class
  pdc202xx_new: switch to using pci_get_slot() (take 2)
  ...
2007-10-11 19:20:44 -07:00
Linus Torvalds
e6005a85ac Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds:
  leds: Update Cobalt Qube series front LED support
  leds: Add Cobalt Raq series LEDs support
  leds: Rename leds-cobalt driver
2007-10-11 19:20:16 -07:00
Linus Torvalds
6f35308c3f Merge branch 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight
* 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight:
  backlight: Convert corgi backlight driver into a more generic driver
  backlight: Add Samsung LTV350QV LCD driver
  backlight: Fix cr_bllcd allocations and error paths
  backlight/leds: Make two structs static
2007-10-11 19:19:50 -07:00
Linus Torvalds
19ad7ae47e Merge branch 'dmi-const' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6
* 'dmi-const' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/misc-2.6:
  drivers/firmware: const-ify DMI API and internals
2007-10-11 19:18:45 -07:00
Linus Torvalds
1ce4890428 Merge branch 'block-2.6.24' of git://git.kernel.dk/data/git/linux-2.6-block
* 'block-2.6.24' of git://git.kernel.dk/data/git/linux-2.6-block: (37 commits)
  [BLOCK] Fix failing compile with BLK_DEV_IO_TRACE=n
  compat_ioctl: move floppy handlers to block/compat_ioctl.c
  compat_ioctl: move cdrom handlers to block/compat_ioctl.c
  compat_ioctl: move BLKPG handling to block/compat_ioctl.c
  compat_ioctl: move hdio calls to block/compat_ioctl.c
  compat_ioctl: handle blk_trace ioctls
  compat_ioctl: add compat_blkdev_driver_ioctl()
  compat_ioctl: move common block ioctls to compat_blkdev_ioctl
  Sysace: Don't enable IRQ until after interrupt handler is registered
  Sysace: sparse fixes
  Sysace: Minor coding convention fixup
  drivers/block/umem: use DRIVER_NAME where appropriate
  drivers/block/umem: trim trailing whitespace
  drivers/block/umem: minor cleanups
  drivers/block/umem: use dev_printk()
  drivers/block/umem: move private include away from include/linux
  Sysace: Labels in C code should not be indented.
  Sysace: Add of_platform_bus binding
  Sysace: Move IRQ handler registration to occur after FSM is initialized
  Sysace: minor rework and cleanup changes
  ...
2007-10-11 19:14:22 -07:00
Linus Torvalds
1ef3e36251 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (74 commits)
  Blackfin serial driver: pending a unique anomaly id, tie the break flood issue to ANOMALY_05000230
  blackfin enable arbitary speed serial setting
  Blackfin arch: Remove cruft - CONFIG_DEBUG_SERIAL_EARLY_INIT and DEBUG_KERNEL_START
  Blackfin arch: fix typo in register name
  Blackfin arch: trim the Blackfin arch MAINTAINERS list
  Blackfin arch: fix bug libstdc++ calling writev with an iovec containing { NULL, 0 } fails on Blackfin
  Blackfin arch: Export strcpy - occasionally get module link failures otherwise
  Blackfin arch: the load address is not safe to point to as a workaround for ANOMALY 05000281
  Blackfin arch: show_mem can not be marked as init, since it is called during OOM condition
  Blackfin arch: flush/inv the correct range when using write back cache and fix bugs find by dmacopy
  Blackfin arch: update kgdb patch
  Blackfin arch: Comply with revised Anomaly Workarounds for BF533 05000311 and BF561 05000323
  Blackfin arch: Print out debug info, as early as possible
  Blackfin arch: Enable earlyprintk earlier - so any error after our interrupt tables are set up will print out
  Blackfin arch: fix endless loop bug when a double fault happens
  Blackfin arch: Initial patch to add earlyprintk support
  Blackfin arch: add TWIx_REGBASE and SPIx_REGBASE to specific CPU header files, use the new REGBASE for board platform resources
  Blackfin arch: modify the insX/outsX and dma_insX/dma_outsX to be compatible with other archs
  Blackfin arch: add more common defines for output sections
  Blackfin arch: cleanup IO and DMA_IO API function definitions according to other arches
  ...
2007-10-11 19:11:51 -07:00
Linus Torvalds
c634920aba Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb: (310 commits)
  V4L/DVB (6316): Change list_for_each+list_entry to list_for_each_entry
  V4L/DVB (6315): pvrusb2: Change list_for_each+list_entry to list_for_each_entry
  V4L/DVB (6314): saa7134: Replace list_for_each+list_entry with list_for_each_entry
  V4L/DVB (6313): ivtv: Replace list_for_each+list_entry with list_for_each_entry
  V4L/DVB (6312): cx88: Replace list_for_each+list_entry with list_for_each_entry
  V4L/DVB (6311): dvb: Replace list_for_each+list_entry with list_for_each_entry
  V4L/DVB (6308): V4L: zc0301, remove bad usage of ERESTARTSYS
  V4L/DVB (6307): V4L: w9968cf, remove bad usage of ERESTARTSYS
  V4L/DVB (6306): Few clenups for saa7134 resume code
  V4L/DVB (6305): V4L: videobuf-core.c avoid NULL dereferences in videobuf-core
  V4L/DVB (6301): pvrusb: Update DEBUGIFC sysfs to kernel 2.6.13+
  V4L/DVB (6300): CodingStyle cleanup
  V4L/DVB (6299): dvb: Add dependencies for VIDEOBUF_DVB
  V4L/DVB (6297): cx23885: remove wrong Kconfig selection of VIDEOBUF
  V4L/DVB (6296): dib0700: add support for AverMedia DVB-T Express card
  V4L/DVB (6295): saa7134: add autodetection for KWorld ATSC-115
  V4L/DVB (6293): V4L: convert struct class_device to struct device
  V4L/DVB (6292): videobuf_core init always require callback implementation
  V4L/DVB (6291): Fix: avoid oops on some SMP machines
  V4L/DVB (6290): remove videobuf_set_pci_ops
  ...
2007-10-11 19:09:32 -07:00
Linus Torvalds
6abd2c860e Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/drzeus/mmc: (67 commits)
  mmc: don't use weight32()
  pxamci: support arbitrary block size
  sdio: make the IRQ thread more resilient in the presence of bad states
  sdio: fix IRQ diagnostic message
  sdhci: remove old dma module params
  sdhci: add SDHCI_QUIRK_BROKEN_DMA quirk
  sdhci: remove DMA capability check from controller's PCI Class reg
  sdhci: fix a typo
  mmc: Disabler for Ricoh MMC controller
  sdio: adaptive interrupt polling
  mmc: pxamci: add SDIO card interrupt reporting capability
  mmc: pxamci: set proper buswidth capabilities according to PXA flavor
  mmc: pxamci: set proper block capabilities according to PXA flavor
  mmc: pxamci: better pending IRQ determination
  arm: i.MX/MX1 SDHC implements SD cards read-only switch read-back
  mmc: add led trigger
  mmc_spi host driver
  MMC core learns about SPI
  MMC/SD card driver learns SPI
  MMC headers learn about SPI
  ...
2007-10-11 18:57:31 -07:00
Stephen Hemminger
2669183032 [SKY2]: status polling loop (post merge)
Handle the corner case where budget is exhausted correctly.
And save unnecessary read of index register.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11 18:31:13 -07:00
David S. Miller
6f53576316 [NET]: Fix NAPI completion handling in some drivers.
In order for the list handling in net_rx_action() to be
correct, drivers must follow certain rules as stated by
this comment in net_rx_action():

		/* Drivers must not modify the NAPI state if they
		 * consume the entire weight.  In such cases this code
		 * still "owns" the NAPI instance and therefore can
		 * move the instance around on the list at-will.
		 */

A few drivers do not do this because they mix the budget checks
with reading hardware state, resulting in crashes like the one
reported by takano@axe-inc.co.jp.

BNX2 and TG3 are taken care of here, SKY2 fix is from Stephen
Hemminger.

Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-11 18:08:29 -07:00
Bartlomiej Zolnierkiewicz
8f4dd2e426 ide: use only ->set_pio_mode method for programming PIO modes (take 2)
Use ->set_pio_mode method to program PIO modes in ide_set_xfer_rate()
(the only place which used ->speedproc to program PIO modes) and remove
handling of PIO modes from all ->speedproc implementations.

v2:
* Fix pmac_ide_tune_chipset() comment.

There should be no functionality changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:54:02 +02:00
Bartlomiej Zolnierkiewicz
0d3be723cb sis5513: don't change UDMA settings when programming PIO
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:54:01 +02:00
Bartlomiej Zolnierkiewicz
90986028c9 it8213/piix/slc90e66: don't change DMA settings when programming PIO
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:54:01 +02:00
Bartlomiej Zolnierkiewicz
a6fe837ed6 alim15x3: PIO mode setup fixes
* Return failure in ->speedproc method for unsupported/invalid transfer
  modes passed from user-space (fixes theoretical OOPS in ali_tune_pio()
  and/or setting random PIO timings on host controller + disabling UDMA
  bit + setting unsupported/invalid transfer mode on the device).

* Don't disable UDMA bit when programming PIO modes.

* Add FIXME about DMA timings never being set.

* Bump driver version.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:54:01 +02:00
Bartlomiej Zolnierkiewicz
ffe5415c3d siimage: fix ->set_pio_mode method to select PIO data transfer
* Remember to select PIO data transfer (with IORDY monitored) in sil_tune_pio()
  (->set_pio_mode method) so the controller is always programmed correctly for
  PIO transfers (this is important if DMA is not going to be used).

* Don't set DMA/UDMA timings for PIO modes in siimage_tune_chipset().

* Bump driver version.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:54:01 +02:00
Bartlomiej Zolnierkiewicz
326d72f437 cs5520: don't enable VDMA in ->speedproc
There is no need to do it in cs5520_tune_chipset() (->speedproc method)
since it is correctly handled by cs5520_dma_on() (->ide_dma_on method).

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:54:01 +02:00
Bartlomiej Zolnierkiewicz
fabe151056 sc1200: remove redundant warning message from sc1200_tune_chipset()
ide_config_drive_speed() called by sc1200_set_xfer_mode() already gives
a meaningful warning message in case of failure.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:54:01 +02:00
Bartlomiej Zolnierkiewicz
c15d5d43e6 ide-pmac: PIO mode setup fixes (take 3)
* Add { 0, 0 } entry to {kauai,shasta}_pio_timings[] so kauai_lookup_timing()
  always returns a valid PIO timing (fixes PIO timing not being set for devices
  with minimum PIO cycle <= 120ns).

* Add setting transfer mode on the device to pmac_ide_set_pio_mode().

* Fix pmac_ide_set_pio() to always program chipset for given PIO timing instead
  of only when the device we want to program PIO timing for is the currently
  selected one.

* Now that pmac_ide_set_pio() is fixed there is no need to set transfer mode
  on the device and program chipset for PIO in pmac_ide_tune_chipset()
  (returning 0 == success is not entirely correct but is OK for now since
  the upper layers are only checking ->speedproc return value for DMA modes).

v2:
* s/speed/XFER_PIO_0 + pio/ in pmac_ide_set_pio_mode() so it actually compiles.

* Removal of kauai_lookup_timing() return value checking went to separate patch.

v3:
* Use XFER_PIO_0 not XFER_PIO. (Noticed by Ben)

Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:54:01 +02:00
Bartlomiej Zolnierkiewicz
f44ae58a27 icside: fix ->speedproc to return on unsupported modes (take 5)
* All other implementations of ->speedproc return zero on success
  and non-zero on failure.  Currently it doesn't matter for icside host
  driver and isn't a bug per se since:

  - ide_set_xfer_rate() return value is ignored by all IDE core users

  - icside doesn't (yet!) use ide_tune_dma() in icside_dma_check()

  but sooner or later we will need to fix anyway - so lets do it now.

* icside_set_speed() happily accepts unsupported transfer modes which
  results in drive->drive_data being set to the maximum value (480)
  and drive->current_speed being set to the unsupported transfer mode.

  Fix it.

v2:
* The initial version of the patch was broken because it didn't take into
  the account (the different from usual) return values of icside_set_speed()
  (Noticed by Russell).

v3:
* Remove no longer needed initialization/checking of cycle_time
  (Noticed by Sergei).

* No need to set drive->drive_data if DMA is not going to be used
  (Noticed by Sergei).

* Remove incorrect setting of drive->current_speed
  (Noticed by Sergei).

* Move ide_config_drive_speed() at the end of icside_set_speed().

v4:
* If DMA mode is not found in icside_dma_check() then just return "-1" and
  don't call icside_set_speed() (v3 got it wrong and "1" was returned instead).

v5:
* Return "-1"/"0" in icside_set_speed() instead of icside_dma_check() return
  value (just like it was before this patch).

Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:54:00 +02:00
Bartlomiej Zolnierkiewicz
ca1997c1f3 sgiioc4: use ide_tune_dma()
* Add DRV_NAME define and use it instead of sgiioc4_chipset.name.

* Remove no longer needed sgiioc4_chipset.

* Remove needless clearing of ->atapi_dma from ide_dma_sgiioc4().

* Fix ide_dma_sgiioc4() to return success/failure.  Check return value in
  sgiioc4_ide_setup_pci_device() and set hwif->autodma accordingly.  Also add
  missing setting of drive->autodma.

* Add sgiioc4_speedproc() (implementation of ->speedproc method).

* Fix ->mwdma_mask (MWDMA2 mask is 0x04 not 0x02) and remove incorrect
  ->swdma_mask.  Also remove needless initialization of ->ultra_mask.

* Use ide_tune_dma() in sgiioc4_ide_dma_check(), this fixes following bugs:
  - DMA capability bit not being checked on the device
  - DMA blacklist not being checked
  - MWDMA2 mode support by device not being checked

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeremy Higdon <jeremy@sgi.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:54:00 +02:00
Bartlomiej Zolnierkiewicz
55f17e8da1 amd74xx/via82cxxx: use ide_tune_dma()
* Use ide_tune_dma() in amd74xx/via82cxxx driver, this fixes following bugs:
  - DMA capability bit not being checked on the device
  - DMA blacklist not being checked
  - DMA mode being programmed even if drive->autodma == 0
    (thus possibly destroying PIO timings)

* Bump driver version.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:54:00 +02:00
Bartlomiej Zolnierkiewicz
26bcb879c0 ide: add ide_set{_max}_pio() (take 4)
* Add IDE_HFLAG_ABUSE_{PREFETCH,FAST_DEVSEL,DMA_MODES} flags
  and set them in ht6560, cmd640, cmd64x and sc1200 host drivers.

* Add set_pio_mode_abuse() for checking if host driver has a non-standard
  ->tuneproc() implementation and use it in do_special().

* Add ide_set_pio() for setting PIO mode (it uses hwif->pio_mask to find
  the maximum PIO mode supported by the host), also add ide_set_max_pio()
  wrapper for ide_set_pio() to use for auto-tuning.  Convert users of
  ->tuneproc to use ide_set{_max}_pio() where possible.  This leaves only
  do_special(), set_using_pio(), ide_hwif_restore() and ide_set_pio() as
  a direct users of ->tuneproc.

* Remove no longer needed ide_get_best_pio_mode() calls and printk-s
  reporting PIO mode selected from ->tuneproc implementations.

* Rename ->tuneproc hook to ->set_pio_mode and make 'pio' argument const.

* Remove stale comment from ide_config_drive_speed().

v2:
* Fix "ata_" prefix (Noticed by Jeff).

v3:
* Minor cleanups/fixups per Sergei's suggestions.

v4:
* Fix compile problem in drivers/ide/pci/cmd640.c
  (Noticed by Andrew Morton).

* Improve some ->set_pio_mode comments.

Reviewed-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:54:00 +02:00
Bartlomiej Zolnierkiewicz
842c19ad6f ide: Kconfig face-lift
* Convert config options for PCI host drivers to select BLK_DEV_IDEPCI.

* Same for BLK_DEV_IDEDMA_PCI and PCI DMA host drivers, also make this
  config option select BLK_DEV_IDEPCI.

* Remove no longer needed help for BLK_DEV_IDEPCI and BLK_DEV_IDEDMA_PCI.

* Remove redundant IDE_CHIPSETS config option.

As a result of this patch users have now three less config options
to worry about and can just select host drivers that they need
(IDE config menu is "flatter").

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:54:00 +02:00
Bartlomiej Zolnierkiewicz
f212ff28f0 ide: move ide_rate_filter() calls to the upper layer (take 2)
* Move ide_rate_filter() calls from host drivers to IDE core.

* Make ide_rate_filter() static.

* Make 'speed' argument of ->speedproc const.

v2:
* Fix it8213_tune_chipset() comment.

There should be no functionality changes caused by this patch.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:53:59 +02:00
Bartlomiej Zolnierkiewicz
3160d5416f sis5513: add ->udma_filter method for chipset_family >= ATA_133
* Add sis5513_ata133_udma_filter() for chipset_family >= ATA_133,
  use it to filter UDMA6 mode if ATA133 bit is disabled.

* Remove no longer needed UDMA6 limiting logic from sis5513_tune_chipset().

* Bump driver version.

There should be no functionality changes caused by this patch.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:53:59 +02:00
Bartlomiej Zolnierkiewicz
7670df73fb ide: mode limiting fixes for user requested speed changes
* Add an extra argument to ide_max_dma_mode() for passing requested transfer
  mode.  Use it as an upper limit when finding the best DMA for device/host.

* Rename ide_max_dma_mode() to ide_find_dma_mode() and at the same time add
  ide_max_dma_mode() wrapper which passes XFER_UDMA_6 as a requested mode to
  ide_find_dma_mode().  Also add inline ide_find_dma_mode() version for
  CONFIG_BLK_DEV_IDEDMA=n case.

* Pass requested transfer mode from ide_find_dma_mode() to ide_get_mode_mask()
  to avoid false warning from eighty_ninty_three().

* Use ide_find_dma_mode() to limit the user requested transfer mode in
  ide_rate_filter().  Also limit the requested mode by host max PIO mode.


Above changes make ide_rate_filter() to:

* Clip desired transfer mode down if it is invalid (values 0x0F, 0x13-0x19
  and 0x25-0x39, values > 0x46 were already clipped down, same for values
  0x25-0x39 but iff UDMA was not supported by the host).

* Clip desired transfer mode down if it is currently unsupported by IDE core
  (PIO6 and MWDMA3-4, the latter were already clipped down but iff UDMA was
  not supported by the host).

* Clip desired transfer mode down according to the host capabilities
  (UDMA modes were already clipped down but MWDMA/SWDMA/PIO weren't,
  also ->atapi_dma flag was not respected).

* Clip desired transfer mode down according to the device capabilities
  (except PIO modes for now which require mode work) - shouldn't be a
  problem since ide_set_xfer_rate() is called _after_ device has accepted
  given transfer mode.

and also result in a number of host driver specific bugfixes:

* icside
  - clip unsupported PIO5 mode down
  - fix unsupported/invalid modes being set in drive->current_speed

* ide-cris
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - clip DMA modes down for ATAPI devices
  - fix BUG() on unsupported/invalid modes

* au1xxx-ide
  - clip unsupported PIO5, SWDMA0-2 and MWDMA0-2
    (if BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA=n) modes down

* aec62xx
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - clip DMA modes down for ATAPI devices
  - fix 0x00 being programmed as PIO timing for unsupported/invalid modes
  - fix unsupported/invalid modes being set on the device

* alim15x3
  - clip DMA modes down for ATAPI devices (chipset revision == 0x20 only)
  - fix theoretical OOPS for 0x0F mode
  - fix unsupported/invalid modes being set on the device

* amd74xx
  - clip unsupported SWDMA0-2 (on COBRA_7401 revs <= 7) modes down
  - fix random PIO timings being set for unsupported/invalid modes
  - fix unsupported/invalid modes being set on the device

* atiixp
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - fix cached MWDMA mode being cleared for unsupported/invalid modes
  - fix PIO{0,2} timings being programmed for unsupported/invalid modes
  - fix theoretical OOPS for PIO5-6 and 0x0F modes
  - fix unsupported/invalid modes being set on the device

* cmd64x
  - clip unsupported SWDMA0-2 modes down

* cs5530
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - fix unsupported/invalid modes being set on the device
  - fix BUG() on unsupported/invalid modes
    (which happened if the device accepted the setting)

* cs5535
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - fix unsupported/invalid modes being set on the device
  - fix theoretical OOPS for PIO5-6 and 0x0F modes

* hpt34x
  - clip DMA modes down for ATAPI devices
  - fix invalid timings being programmed for unsupported/invalid modes
  - fix unsupported/invalid modes being set on the device

* hpt366
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - fix PIO0 timings being programmed for unsupported/invalid modes
  - fix DMA timings being cleared for MWDMA3-4 and 0x25-0x39 modes
  - fix unsupported/invalid modes being set on the device

* it8213
  - clip unsupported PIO5, SWDMA0-1 and MWDMA0 modes down

* it821x
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - clip DMA modes down for ATAPI devices
    (chipset in smart mode and revision 0x10 in pass-through mode)

* jmicron
  - clip unsupported SWDMA0-2 modes down
  - fix unsupported/invalid modes being set on the device

* pdc202xx_new
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - fix unsupported/invalid modes being set on the device

* pdc202xx_old
  - clip unsupported PIO5 mode down
  - fix incorrect timings being set for unsupported/invalid modes
  - fix unsupported/invalid modes being set on the device

* piix
  - clip unsupported PIO5, SWDMA0-1 and MWDMA0 modes down

* sc1200
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - fix unsupported/invalid modes being set on the device
  - fix BUG() on unsupported/invalid modes
    (which happened if the device accepted the setting)

* scc_pata
  - clip unsupported PIO5, SWDMA0-2 and MWDMA0-2 modes down

* serverworks
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - fix DMA/UDMA timings/settings being cleared for unsupported/invalid modes
  - fix unsupported/invalid modes being set on the device

* siimage
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - clip DMA modes down for ATAPI devices (SATA chipsets)

* sis5513
  - clip unsupported PIO5 mode down
  - fix BUG() on unsupported/invalid modes

* sl82c105
  - clip unsupported SWDMA0-2 modes down

* slc90e66
  - clip unsupported PIO5, SWDMA0-1 and MWDMA0 modes down

* tc86c001
  - clip unsupported PIO5 and SWDMA0-2 modes down
  - fix PIO0 timings being programmed for PIO5/0x0F/SWDMA0-2/0x13-0x19 modes
  - fix invalid 0x00 DMA timing being programmed for MWDMA3-4/0x25-0x39 modes
  - fix unsupported/invalid modes being set on the device

* triflex
  - clip unsupported PIO5 mode down

* via82cxxx
  - fix random PIO timings being set for unsupported/invalid modes
  - fix unsupported/invalid modes being set on the device

* pmac
  - clip unsupported PIO5 and SWDMA0-2 modes down

* cmd640/ht6560b
  - clip DMA modes down (if CONFIG_BLK_DEV_IDEDMA=y)
  - fix PIO5 being clipped to PIO4 (if CONFIG_BLK_DEV_IDEDMA=n)

* opti621
  - clip DMA modes down (if CONFIG_BLK_DEV_IDEDMA=y)
  - clip unsupported PIO4 to PIO3 (if CONFIG_BLK_DEV_IDEDMA=n)


While at it:

* Use ide_rate_filter() in cs5520.c::cs5520_tune_chipset().

* Remove no longer needed checks from hpt366.c::hpt3{6,7}x_tune_chipset().

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:53:59 +02:00
Bartlomiej Zolnierkiewicz
a8028fcb48 ide: add missing ide_rate_filter() calls to ->speedproc()-s
* Fix icside, cris-ide, au1xxx-ide, amd74xx, via82cxxx and pmac host drivers
  to use ide_rate_filter().

  This results in the following modes (from user requests) being clipped down:
  - invalid modes (values 0x46-0xFF)  [ for all hosts ]
  - unsupported by a host UDMA modes  [ for hosts which support UDMA]
  - all UDMA modes and MWDMA3-4 modes [ for hosts which don't support UDMA ]
  - invalid modes (values 0x25-0x39)  [ for hosts which don't support UDMA ]

* Host driver specific changes in behavior:

  icside:
    - no change

  cris-ide
    - clip unsupported UDMA3-6 modes down
    - fix BUG() on trying to set unsupported UDMA3-6 modes

  au1xxx-ide/pmac
    - clip unsupported UDMA modes down

  amd74xx/via82cxxx
    - clip unsupported UDMA modes down
    - fix random PIO timings being set for unsupported/invalid modes
    - fix unsupported/invalid modes being set on the device

* While at it remove no longer needed checks from pmac.c driver.

Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:53:59 +02:00
Sergei Shtylyov
851dd33bcf ide: call udma_filter() before resorting to the UltraDMA mask
Give the udma_filter() method call precedence over using the mode masks.

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:53:59 +02:00
Tejun Heo
bda7970c27 ide: make jmicron match vendor and device class
PATA part of all current JMB controllers behave the same way and
JMicron confirms that all future ones will stay compatible.  Matching
vendor and device class is enough.

For backward compatibility, jmicron still needs to match 361,3,5,6,8
DIDs regardless of device class if libata is not configured but won't
need further DID update from this point.

Bart: cosmetic fixes to jmicron_chipset

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: Ethan Hsiao <ethanhsiao@jmicron.com>
Cc: Justin Tsai <justin@jmicron.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:53:59 +02:00
Sergei Shtylyov
0704793579 pdc202xx_new: switch to using pci_get_slot() (take 2)
Switch to using pci_get_slot() in init_setup_pdc20270() to get to the mate chip
behind DC21150 bridge as there's no need for the driver itself to walk the list
of the PCI devices (and the driver didn't check the bus # of the found device).
While at it, make it emit warning about IRQ # being fixed up (just like hpt366.c
does) and "beautify" this whole function as well as init_setup_pdc20276()...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:53:58 +02:00
Shaohua Li
5e32132bef ide: hook ACPI _PSx method to IDE power on/off
ACPI spec defines the sequence of IDE power on/off:
Powering down:
	Call _GTM.
	Power down drive (calls _PS3 method and turns off power planes).
Powering up:
	Power up drive (calls _PS0 method if present and turns on power planes).
	Call _STM passing info from _GTM (possibly modified), with ID data from
	each drive.
	Initialize the channel.
	May modify the results of _GTF.
	For each drive:
		Call _GTF.
		Execute task file (possibly modified).
This patch adds the missed _PS0/_PS3 methods call.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Acked-by: Len Brown <len.brown@intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:53:58 +02:00
Anton Vorontsov
8cb1f567f4 ide: Platform IDE driver
This is now very similar to pata_platform.c, they both use
same platform data structure and same resources.

To achieve that, byte_lanes_swapping platform data variable
and platform specified iops removed from that driver. It's fine,
since those were never used anyway.

pata_platform and ide_platform are carrying same driver names,
to easily switch between these drivers, without need to touch
platform code.

Bart:
- build fix from Andrew Morton <akpm@linux-foundation.org>

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:53:58 +02:00
Sergei Shtylyov
b4e44369a3 hpt366: MWDMA filter for SATA cards (take 2)
The Marvell bridge chips used on HighPoint SATA cards do not seem to support
the MWDMA modes (at least that could be seen in their so-called drivers :-),
so the driver needs to account for this -- to achieve this:

- add mdma_filter() method from the original patch by Bartlomiej Zolnierkiewicz
  with his consent;

- install the method for all chips to only return empty mask if a SATA drive
  is detected on HPT372{AN]/374 chips...

Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:53:58 +02:00
Shane Huang
7cfa7168f7 atiixp: SB700 contains more than one IDE channel
SB700 supports one physical IDE channel, but SB700 SATA controller
supports combined mode.  When the SATA combined mode is enabled,
two SATA ports (port4 and port5) share one IDE channel from IDE
controller, and PATA will share the other IDE channel.

Our previous patch adding SB700 IDE device ID only supports one
IDE channel, which contains bug.  The attached patch fixes the bug.

Signed-off-by: "Shane Huang" <Shane.Huang@amd.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2007-10-11 23:53:58 +02:00
Richard Purdie
c3f8f65046 backlight: Convert corgi backlight driver into a more generic driver
Convert the corgi backlight driver to a more generic version
so it can be reused by other code rather than being Zaurus/PXA
specific.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
2007-10-11 22:24:13 +01:00
Haavard Skinnemoen
18f65c793a backlight: Add Samsung LTV350QV LCD driver
This patch adds support for powering on and off the Samsung LTV350QV LCD
panel via SPI.  The driver responds to framebuffer power management, it
powers off the panel on reboot/halt/poweroff.  It can also be controlled
through sysfs.  The panel is powered up when the module is loaded, and off
when the module is unloaded.  Verified on AVR32 STK1000.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
2007-10-11 22:24:12 +01:00
Jesper Juhl
0b75f2dfa2 backlight: Fix cr_bllcd allocations and error paths
After fixing the too small memory allocation in cr_backlight_probe()
from drivers/video/backlight/cr_bllcd.c
(commit e3bbb3f053) I noticed that the
Coverity checker also thought there were a few memory leaks in there.
I took a closer look and confirmed that there were indeed several
leaks.

At the start of the function we allocate storage for a
'struct cr_panel' and store the pointer in a variable named 'crp'.

Then we call pci_get_device() and pci_read_config_byte() and if
either of them fail we return without freeing the memory allocated
for the 'struct cr_panel'. These two leaks are easy to fix since we
don't even use 'crp' for anything up to this point, so I simply
moved the allocation further down in the function so it only happens
just before we actually need it.

A bit further down we call backlight_device_register() and store the
result in 'crp->cr_backlight_device'. In case of error we return
'crp->cr_backlight_device' from the function, thus leaking 'crp'
itself. The same thing happens with the call to lcd_device_register().
To fix these two leaks I declare two new pointers to hold the return
values, so that in case of error we can return the pointer (as before)
but without leaking 'crp'.

This version of the patch also adds missing
backlight_device_unregister() / lcd_device_unregister() / pci_dev_put()
calls to error paths.
  Thanks to Richard Purdie <rpurdie@rpsys.net> for noticing.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
2007-10-11 22:24:12 +01:00
Adrian Bunk
0ad90efde2 backlight/leds: Make two structs static
This patch makes two needlessly global structs static.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
2007-10-11 22:24:12 +01:00
Yoichi Yuasa
4276fd7349 leds: Update Cobalt Qube series front LED support
Update Cobalt Qube series front LED support.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
2007-10-11 22:24:00 +01:00
Yoichi Yuasa
97da7aaf46 leds: Add Cobalt Raq series LEDs support
Add Cobalt Raq series LEDs support.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
2007-10-11 22:24:00 +01:00
Yoichi Yuasa
f3b6b6cd00 leds: Rename leds-cobalt driver
The leds-cobalt driver only supports the Coable Qube series
(not included in Cobalt Raq series).
Rename the driver and update Kconfig/Makefile.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Acked-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
2007-10-11 22:24:00 +01:00
Nicolas Pitre
019a5f56ec mmc: don't use weight32()
Using weight32() to determine if a value is a power of 2 is a rather
heavi weight solution.  The classic idiom is (x & (x - 1)) == 0, but
the kernel already provide a is_power_of_2 function for it.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
2007-10-11 19:09:08 +02:00
Josh Boyer
0a2cdd88f0 Merge branch 'virtex-for-2.6.24' of git://git.secretlab.ca/git/linux-2.6-virtex into for-2.6.24-4xx 2007-10-11 07:45:20 -05:00
Stephen Rothwell
8251b4c481 [POWERPC] iSeries: Move viodasd probing
This way we only have entries in the device tree for disks that actually
exist.  A slight complication is that disks may be attached to LPARs
at runtime.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11 20:40:48 +10:00
Stephen Rothwell
7465ce0db3 [POWERPC] iSeries: Move detection of virtual tapes
Now we will only have entries in the device tree for the actual existing
devices (including their OS/400 properties).  This way viotape.c gets
all the information about the devices from the device tree.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11 20:40:47 +10:00
Stephen Rothwell
b833b481c1 [POWERPC] iSeries: Move detection of virtual cdroms
Now we will only have entries in the device tree for the actual existing
devices (including their OS/400 properties).  This way viocd.c gets all
the information about the devices from the device tree.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11 20:40:47 +10:00
Stephen Rothwell
1670b2b271 [POWERPC] Remove iSeries_vio_dev
It was only being used to carry around dma_iommu_ops and vio_iommu_table
which we can use directly instead.  This also means that vio_bus_device
doesn't need to refer to them either.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11 20:40:45 +10:00