| Commit message (Collapse) | Author | Age | Files | Lines |
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The pre-parsed addrs/n_addrs fields in struct device_node are finally
gone. Remove the dodgy heuristics that did that parsing at boot and
remove the fields themselves since we now have a good replacement with
the new OF parsing code. This patch also fixes a bunch of drivers to use
the new code instead, so that at least pmac32, pseries, iseries and g5
defconfigs build.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Manual fixup for merge with Jens' "Suspend support for libata", commit
ID 9b847548663ef1039dd49f0eb4463d001e596bc3.
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Signed-off-by: Jens Axboe <axboe@suse.de>
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Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jens Axboe <axboe@suse.de>
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Reflect changes in SCSI midlayer and updated to use new
ordered request implementation
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jens Axboe <axboe@suse.de>
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Add FUA support for barriers to SCSI disk.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jens Axboe <axboe@suse.de>
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All ordered request related stuff delegated to HLD. Midlayer
now doens't deal with ordered setting or prepare_flush
callback. sd.c updated to deal with blk_queue_ordered
setting. Currently, ordered tag isn't used as SCSI midlayer
cannot guarantee request ordering.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jens Axboe <axboe@suse.de>
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add @uptodate argument to end_that_request_last() and @error
to rq_end_io_fn(). there's no generic way to pass error code
to request completion function, making generic error handling
of non-fs request difficult (rq->errors is driver-specific and
each driver uses it differently). this patch adds @uptodate
to end_that_request_last() and @error to rq_end_io_fn().
for fs requests, this doesn't really matter, so just using the
same uptodate argument used in the last call to
end_that_request_first() should suffice. imho, this can also
help the generic command-carrying request jens is working on.
Signed-off-by: tejun heo <htejun@gmail.com>
Signed-Off-By: Jens Axboe <axboe@suse.de>
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This patch adds suspend patch to libata, and ata_piix in particular. For
most low level drivers, they should just need to add the 4 hooks to
work. As I can only test ata_piix, I didn't enable it for more
though.
Suspend support is the single most important feature on a notebook, and
most new notebooks have sata drives. It's quite embarrassing that we
_still_ do not support this. Right now, it's perfectly possible to
suspend the drive in mid-transfer.
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Make drivers that use directly PC parport HW depend on PARPORT_PC rather than
HW independent PARPORT.
Signed-off-by: Marko Kohtala <marko.kohtala@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Sanitize some s390 Kconfig options. We have ARCH_S390, ARCH_S390X,
ARCH_S390_31, 64BIT, S390_SUPPORT and COMPAT. Replace these 6 options by
S390, 64BIT and COMPAT.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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callback
Unify the EVENT_CARD_INSERTION and "attach" callbacks to one unified
probe() callback. As all in-kernel drivers are changed to this new
callback, there will be no temporary backwards-compatibility. Inside a
probe() function, each driver _must_ set struct pcmcia_device
*p_dev->instance and instance->handle correctly.
With these patches, the basic driver interface for 16-bit PCMCIA drivers
now has the classic four callbacks known also from other buses:
int (*probe) (struct pcmcia_device *dev);
void (*remove) (struct pcmcia_device *dev);
int (*suspend) (struct pcmcia_device *dev);
int (*resume) (struct pcmcia_device *dev);
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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The linked list of devices managed by each PCMCIA driver is, in very most
cases, unused. Therefore, remove it from many drivers.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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Unify the "detach" and REMOVAL_EVENT handlers to one "remove" function.
Old functionality is preserved, for the moment.
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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Move the suspend and resume methods out of the event handler, and into
special functions. Also use these functions for pre- and post-reset, as
almost all drivers already do, and the remaining ones can easily be
converted.
Bugfix to include/pcmcia/ds.c
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
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Trivial manual merge fixup for usb_find_interface clashes.
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Leave the overloaded "hotplug" word to susbsystems which are handling
real devices. The driver core does not "plug" anything, it just exports
the state to userspace and generates events.
Signed-off-by: Kay Sievers <kay.sievers@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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The distinction between hotplug and uevent does not make sense these
days, netlink events are the default.
udev depends entirely on netlink uevents. Only during early boot and
in initramfs, /sbin/hotplug is needed. So merge the two functions and
provide only one interface without all the options.
The netlink layer got a nice generic interface with named slots
recently, which is probably a better facility to plug events for
subsystem specific events.
Also the new poll() interface to /proc/mounts is a nicer way to
notify about changes than sending events through the core.
The uevents should only be used for driver core related requests to
userspace now.
Signed-off-by: Kay Sievers <kay.sievers@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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Ignore all files generated from *_shipped files, plus a few others.
Signed-off-by: Brian Gerst <bgerst@didntduck.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
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master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev
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There is no user of qc->waiting left after ata_exec_internal()
changes. Kill the field.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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There is no user of ata_qc_wait_err() and ata_qc_complete_noop() after
ata_exec_internal() changes. Remove unused functions.
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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This patch converts all users of libata internal commands to use
ata_exec_internal().
Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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This patch implements ata_exec_internal() function which performs
libata internal command execution. Previously, this was done by each
user by manually initializing a qc, issueing it, waiting for its
completion and handling errors. In addition to obvious code
factoring, using ata_exec_internal() fixes the following bugs.
* qc not freed on issue failure
* ap->qactive clearing could race with the next internal command
* race between timeout handling and irq
* ignoring error condition not represented in tf->status
Also, qc & hardware are not accessed anymore once it's completed,
making internal commands more conformant with general semantics.
ata_exec_internal() also makes it easy to issue internal commands from
multiple threads if that becomes necessary.
This patch only implements ata_exec_internal(). A following patch
will convert all users.
Signed-off-by: Tejun Heo <htejun@gmail.com>
--
Jeff, all patches have been regenerated against upstream branch as of
today. (575ab52a218e4ff0667a6cbd972c3af443ee8713)
Also, I took out a debug printk from ata_exec_internal (don't know how
that one got left there). Other than that, all patches are identical
to the previous posting.
Thanks. :-)
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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Ok lets start with the 'easy' stuff. This includes my research and
summary of chip errata into the new driver so that people can refer to
it when updating ata_piix.
No code changes
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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1. ata_pio_complete():
It seems unnecessary to wait for the clearing of the DRQ bit.
(Waiting for BSY=0 should be enough.
ata_ok() also checks the correctness of the status bits later.)
2. ata_pio_block():
- added error checking, before transfering data.
- minor comments fix
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
============
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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- set qc->err_mask directly when we found the error
- remove the code to determine err_mask from device status
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
============
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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- move "qc->err_mask |= AC_ERR_ATA_BUS" to where the error is found
- add "assert(qc->err_mask)" to ata_pio_error() to make sure qc->err_mask was available when we enter the error state
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
============
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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- remove err_mask from the parameter list of the complete functions
- move err_mask to ata_queued_cmd
- initialize qc->err_mask when needed
- for each function call to ata_qc_complete(), replace the err_mask parameter with qc->err_mask.
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
===============
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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- add qc to ata_pio_poll()
- reorder the initialization of qc in ata_pio_complete()
Signed-off-by: Albert Lee <albertcc@tw.ibm.com>
===================
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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Hi,
the patch below marks several libata (and libata-driver) structures
const so that they end up in the .rodata segment and don't false-share
cachelines with things that get dirtied often.
Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
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Make the SATA phy probe messages a bit more informative.
Note this only applies to drivers that use __sata_phy_reset(),
which excludes some drivers.
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Fix compile warnings with current scsi-misc git tree
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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