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* Make ->io_buffers method return number of bytes transferred.
* Use ide_end_request() instead of idefloppy_end_request()
in ide_floppy_io_buffers() and then move the call out to
ide_pc_intr().
* Add ide_io_buffers() helper and convert ide-{floppy,scsi}.c
to use it instead of ide*_io_buffers().
There should be no functional changes caused by this patch.
Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Preparation for ide_{floppy,scsi}_io_buffers() unification.
Acked-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Only MODE_SENSE_CURRENT (0x00) is ever used so just remove
these defines and then drop no longer needed 'type' argument
from idefloppy_create_mode_sense_cmd().
Cc: Borislav Petkov <petkovbb@gmail.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add 'struct ide_atapi_pc queued_pc' to struct ide_{floppy,tape}_obj
and switch ide*_do_request() to use it (there can be only one active
request for a given device).
* Add 'struct ide_atapi_pc request_sense_pc' to struct ide_*_obj
and switch ide*_retry_pc() to use it.
* Remove needless {floppy,tape}->pc assignment from ide*_setup().
* Remove no longer needed ide*_next_pc_storage(), pc_stack[],
rq_stack_index, IDE*_PC_STACK and DBG_PC_STACK.
There should be no functional changes caused by this patch.
Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add 'struct request request_sense_rq' to struct ide_{floppy,tape}_obj
and switch ide*_retry_pc() to use it (there can be only one REQUEST SENSE
request active for a given device).
* Remove no longer needed ide*_next_rq_storage(), rq_stack[]
and rq_stack_index.
* DBG_PCRQ_STACK -> DBG_PC_STACK
* Update comments for IDE*_PC_STACK and idetape_queue_pc_{head,tail}().
There should be no functional changes caused by this patch.
Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Avoid probing the io-ports in case an IDE PCI controller is present and it
uses the legacy iobases. If we still want to enforce the probing, we do
ide_generic.probe_mask=0x3f
on the kernel command line. The iobase checking code is
adapted from drivers/ata/pata_legacy.c after converting hex
pci ids into their corresponding macros in <linux/pci_ids.h>.
Also, check only BAR0/2 resources since those are guaranteed
by the workaround in drivers/pci/probe.c:pci_setup_device().
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
[bart: trivial printk() fixups]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Use hwif->sg_table for pio transfers instead of fumbling
with block layer internals in the driver. Also, make debug
statements more informative in .._do_request() while at it.
Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
[bart: fixup pc->b_count in idefloppy_blockpc_cmd()]
[bart: add missing include (noticed by Stephen Rothwell)]
[bart: map hwif->sg_{table,nents} on pc->{sg,sg_cnt} (multi-IRQs-per-sg fix)]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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idetape_init_rq() is only used in idetape_queue_pc_head()
so inline it there.
Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Factor out IDEFLOPPY_IOCTL_FORMAT_* ioctls handling from
idefloppy_ioctl() to ide_floppy_format_ioctl().
While at it:
* Pass 'drive' instead of 'floppy' to ide_floppy_format_unit().
* idefloppy_get_format_progress() -> ide_floppy_get_format_progress()
There should be no functional changes caused by this patch.
Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add ide_check_atapi_device() to ide-atapi.c and convert
ide-{floppy,tape}.c to use it instead of ide*_identify_device().
While at it:
* Add DRV_NAME defines to ide-{floppy,tape}.c.
Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Move ioctls handling to ide-ioctls.c
(except HDIO_DRIVE_TASKFILE for now).
* Make ide_{cmd,task}() static.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Fix intendation for the main 'switch ()'.
* 'switch ()' -> 'if ()' for HDIO_DRIVE_TASKFILE case.
* Move HDIO_SET_NICE case under HDIO_GET_NICE one.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add struct ide_ioctl_devset representing ioctl device setting.
* Add ide_setting_ioctl() helper for matching given ioctl
and its parameters against table of ioctl device settings.
* Convert ide_setting_ioctl() and idedisk_ioctl() to use
ide_setting_ioctl().
* Un-export ide_setting_mtx.
While at it:
* {get,set}_lba_addressing() -> {get,set}_addressing()
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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It is always set to BUSSTATE_ON.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Keep pointer to ->init_chipset method also in
struct ide_host and set it in ide_host_alloc_all().
* Add ide_pci_suspend() and ide_pci_resume() helpers
(default ->suspend and ->resume implementations).
* ->init_chipset can no longer be marked __devinit.
* Add proper PCI PM support to IDE PCI host drivers
(rz1000.c and tc86c001.c are skipped for now since
they need to be converted from using ->init_hwif
to use ->init_chipset instead).
v2:
* Cleanup CONFIG_PM #ifdef-s per akpm's suggestion.
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Factor out disabling of "fast interrupt" prediction from
init_hwif_hpt366() to hpt3xx_disable_fast_irq() helper.
* Use hpt3xx_disable_fast_irq() in ->init_chipset instead of
->init_hwif method.
This is a preparation for adding proper PCI PM support.
While at it:
* Cache chip type in chip_type variable in hpt3xx_disable_fast_irq().
There should be no functional changes caused by this patch.
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Rename lba_capacity_is_ok() to ata_id_is_lba_capacity_ok()
and move it to <linux/ata.h> (remove needless parens while at it).
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Rename ide_id_to_hd_driveid() to ata_id_to_hd_driveid()
and move it to <linux/ata.h>.
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Use ata_id_is_cfa() in do_identify() instead of open-coding
check for CompactFlash devices (the inline helper also takes
care of detecting CFs advertising themselves as ATA disks).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add ata_id_flush_ext_enabled() inline helper to <linux/ata.h>.
* ide_id_has_flush_cache_ext() -> ata_id_flush_ext_enabled()
The latter one also checks if the command is marked as
supported in word 83 and validity of words 83 & 86.
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add ata_id_flush_enabled() inline helper to <linux/ata.h>.
* ide_id_has_flush_cache() -> ata_id_flush_enabled()
The latter one also checks if the command is marked as
supported in word 83 and validity of words 83 & 86.
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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All devices supporting CACHE FLUSH EXT command should also support
CACHE FLUSH command so it is sufficient to check only for CACHE FLUSH
in ide_id_has_flush_cache().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add ata_id_lba48_enabled() inline helper to <linux/ata.h>.
* idedisk_supports_lba48() -> ata_id_lba48_enabled()
The latter one also checks validity of words 83 & 86.
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Use optimized ATA version check from Sergei in ata_id_is_sata().
* ide_dev_is_sata() -> ata_id_is_sata()
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Remove (id[ATA_ID_FIELD_VALID] & 2) check from ide_dev_has_iordy()
(it is for validity of words 64-70, IORDY is in word 49).
* ide_dev_has_iordy() -> ata_id_has_iordy()
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Factor out HDIO_{GET,SET}_NICE ioctl handling from
generic_ide_ioctl() to ide_{get,set}_nice_ioctl().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Use drive->media and drive->scsi to check if ->dsc_overlap
can be set by HDIO_SET_NICE ioctl in generic_ide_ioctl().
* Remove unused ->supports_dsc_overlap field from ide_driver_t.
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Factor out the common code from check_prefetch()
and set_prefetch_mode() to __set_prefetch_mode().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Just use SECTOR_SIZE instead.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Add struct ide_devset, S_* flags, *DEVSET() & ide*_devset_*() macros.
* Add 'const struct ide_devset **settings' to ide_driver_t.
* Use 'const struct ide_devset **settings' in ide_drive_t instead of
'struct ide_settings_s *settings'. Then convert core code and device
drivers to use struct ide_devset and co.:
- device settings are no longer allocated dynamically for each device
but instead there is an unique struct ide_devset instance per setting
- device driver keeps the pointer to the table of pointers to its
settings in ide_driver_t.settings
- generic settings are kept in ide_generic_setting[]
- ide_proc_[un]register_driver(), ide_find_setting_by_name(),
ide_{read,write}_setting() and proc_ide_{read,write}_settings()
are updated accordingly
- ide*_add_settings() are removed
* Remove no longer used __ide_add_setting(), ide_add_setting(),
__ide_remove_setting() and auto_remove_settings().
* Remove no longer used TYPE_*, SETTING_*, ide_procset_t
and ide_settings_t.
* ->keep_settings, ->using_dma, ->unmask, ->noflush, ->dsc_overlap,
->nice1, ->addressing, ->wcache and ->nowerr ide_drive_t fields
can now be bitfield flags.
While at it:
* Rename ide_find_setting_by_name() to ide_find_setting().
* Rename write_wcache() to set_wcache().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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After rework settings will be no longer created dynamically
for each device so we need to make some fixups first.
* Use set_[ksettings,unmaskirq]() as a set function for
["keepsettings","unmaskirq"] setting.
* Allow writes to ["io_32bit","unmaskirq"] settings also when
drive->no_[io_32bit,unmask] is set (this is checked later inside
set_[io_32bit,unmaskirq]() anywyay and keeps consistency with
the corresponding HDIO_SET_[32BIT,UNMASKINTR] ioctls).
* Use max possible multi sectors value (16) as an allowed max for
"multcount" setting. set_multcount() set function checks against
device's max possbile value anyway and it makes the proc setting
consistent with the corresponding HDIO_SET_MULTCOUNT ioctl.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Call ide_proc_register_driver() in ide*_setup() (just before
ide*_add_settings() call) instead of in ->probe method.
Despite being basically a preparation for /proc/ide/hd*/settings
rework this is a nice cleanup in itself.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Include <linux/ata.h> directly in <linux/ide.h>
instead of through <linux/hdreg.h>.
* Include <linux/hdreg.h> only when needed.
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Use multi PIO by default when available and remove no longer
needed CONFIG_IDEDISK_MULTI_MODE (it should be safe nowadays,
despite to what help entry has been saying).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Change ide_get_paired_drive() to return NULL if peer device
is not present and update all users accordingly.
While at it:
* ide_get_paired_drive() -> ide_get_pair_dev()
* Use ide_get_pair_dev() in cs5530.c, sc1200.c and via82cxxx.c.
There should be no functional changes caused by this patch.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Remove needless drive->present checks from ->probe methods
(device model takes care of that).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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They just obfuscate the code.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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init_irq() is now called only during initial host registration
so these BUG_ON()-s are no loner needed (+ the last one was done
too late anyway).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Make ide_busy_sleep() take timeout value as a parameter
and also allow use of AltStatus Register if requested with
altstatus parameter. Update existing users accordingly.
* Convert ide_driveid_update() and actual_try_to_identify()
to use ide_busy_sleep().
There should be no functional changes caused by this patch.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Fix EXABYTENEST handling in probe_for_drive() (so drive->present
is checked for "nested" device) and cleanup enable_nest().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Borislav Petkov <petkovbb@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Tejun Heo <htejun@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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On Friday 25 July 2008, Linus Torvalds wrote:
>
> On Fri, 25 Jul 2008, Ben Dooks wrote:
> >
> > personally, i would much prefer to see the loop being less evil
> > like:
> >
> > for (p = s; p < end; p += 2)
> > be16_to_cpus((u16 *)p);
>
> Well, in this case, the code actually depends on 'p' being back at the
> start of the buffer by the end of it all, so it would need some more
> changes than that.
>
> But yes, I applied David's patch, but I _also_ suspect that we would be
> better off without code that does horrid things like casts and assignments
> inside the function arguments.
>
> So it would be nice to re-code that loop to be more readable. But due to
> the reliance of 'p' being 's' after the loop, the minimal patch would be
> something like the appended.
>
> Bartlomiej - take this or not, I'm not going to commit it - I haven't
> tested it, nor do I even have any machines that would trigger it. So this
> is more a "maybe something like this" than anything else.
From: Linus Torvalds <torvalds@linux-foundation.org>
CC: Ben Dooks <ben-linux@fluff.org>
Cc: David Miller <davem@davemloft.net>
Cc: harvey.harrison@gmail.com
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Remove ->remap_0_to_1 and ->sect0 (they are always zero now).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* ERR_STAT -> ATA_ERR
* INDEX_STAT -> ATA_IDX
* ECC_STAT -> ATA_CORR
* DRQ_STAT -> ATA_DRQ
* SEEK_STAT -> ATA_DSC
* WRERR_STAT -> ATA_DF
* READY_STAT -> ATA_DRDY
* BUSY_STAT -> ATA_BUSY
* MARK_ERR -> ATA_AMNF
* TRK0_ERR -> ATA_TRK0NF
* ABRT_ERR -> ATA_ABORTED
* MCR_ERR -> ATA_MCR
* ID_ERR -> ATA_IDNF
* MC_ERR -> ATA_MC
* ECC_ERR -> ATA_UNC
* ICRC_ERR -> ATA_ICRC
* BBD_ERR -> ATA_BBK
Also:
* ILI_ERR -> ATAPI_ILI
* EOM_ERR -> ATAPI_EOM
* LFS_ERR -> ATAPI_LFS
* CD -> ATAPI_COD
* IO -> ATAPI_IO
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Use ATA_CMD_* defines instead of WIN_* ones.
* Include <linux/ata.h> directly instead of through <linux/hdreg.h>.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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* Use ATA_CMD_* defines instead of WIN_* ones.
While at it:
* EXABYTE_ENABLE_NEXT -> ATA_EXABYTE_ENABLE_NEST
* SETFEATURES_{EN,DIS}_WCACHE -> SETFEATURES_WC_{ON,OFF}
* SETFEATURES_{EN,DIS}_AAM -> SETFEATURES_AAM_{ON,OFF}
* SMART_* -> ATA_SMART_*
* Remove stale comment from ide-proc.c.
Partially based on earlier work by Chris Wedgwood.
Acked-by: Chris Wedgwood <cw@f00f.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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