Commit Graph

172 Commits

Author SHA1 Message Date
Borislav Petkov
801bd32e20 ide-tape: fix vendor strings
Remove superfluous two bytes from each string buffer and add proper length
format specifiers.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Tested-by: Mark de Wever <koraq@xs4all.nl>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-09-27 19:32:17 +02:00
Bartlomiej Zolnierkiewicz
d3e33ff59f ide: fix regression caused by ide_device_{get,put}() addition (take 2)
On Monday 28 July 2008, Benjamin Herrenschmidt wrote:

[...]

> Vector: 300 (Data Access) at [c58b7b80]
>     pc: c014f264: elv_may_queue+0x10/0x44
>     lr: c0152750: get_request+0x2c/0x2c0
>     sp: c58b7c30
>    msr: 1032
>    dar: c
>  dsisr: 40000000
>   current = 0xc58aaae0
>     pid   = 854, comm = media-bay
> enter ? for help
> mon> t
> [c58b7c40] c0152750 get_request+0x2c/0x2c0
> [c58b7c70] c0152a08 get_request_wait+0x24/0xec
> [c58b7cc0] c0225674 ide_cd_queue_pc+0x58/0x1a0
> [c58b7d40] c022672c ide_cdrom_packet+0x9c/0xdc
> [c58b7d70] c0261810 cdrom_get_disc_info+0x60/0xd0
> [c58b7dc0] c026208c cdrom_mrw_exit+0x1c/0x11c
> [c58b7e30] c0260f7c unregister_cdrom+0x84/0xe8
> [c58b7e50] c022395c ide_cd_release+0x80/0x84
> [c58b7e70] c0163650 kref_put+0x54/0x6c
> [c58b7e80] c0223884 ide_cd_put+0x40/0x5c
> [c58b7ea0] c0211100 generic_ide_remove+0x28/0x3c
> [c58b7eb0] c01e9d34 __device_release_driver+0x78/0xb4
> [c58b7ec0] c01e9e44 device_release_driver+0x28/0x44
> [c58b7ee0] c01e8f7c bus_remove_device+0xac/0xd8
> [c58b7f00] c01e7424 device_del+0x104/0x198
> [c58b7f20] c01e74d0 device_unregister+0x18/0x30
> [c58b7f40] c02121c4 __ide_port_unregister_devices+0x6c/0x88
> [c58b7f60] c0212398 ide_port_unregister_devices+0x38/0x80
> [c58b7f80] c0208ca4 media_bay_step+0x1cc/0x5c0
> [c58b7fb0] c0209124 media_bay_task+0x8c/0xcc
> [c58b7fd0] c00485c0 kthread+0x48/0x84
> [c58b7ff0] c0011b20 kernel_thread+0x44/0x60

The guilty commit turned out to be 08da591e14
("ide: add ide_device_{get,put}() helpers").  ide_device_put() is called
before kref_put() in ide_cd_put() so IDE device is already gone by the time
ide_cd_release() is reached.

Fix it by calling ide_device_get() before kref_get() and ide_device_put()
after kref_put() in all affected device drivers.

v2:
Brown paper bag time.  In v1 cd->drive was referenced after dropping last
reference on cd object (which could result in OOPS in ide_device_put() as
reported/debugged by Mariusz Kozlowski).  Fix it by caching cd->drive in
the local variable (fix other device drivers too).

Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reported-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Borislav Petkov <petkovbb@gmail.com>
Tested-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Tested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-08-05 18:16:59 +02:00
Harvey Harrison
cd740ab0f6 ide: ide-tape.c sparse annotations and unaligned access removal
If this is actually unaligned the access of speed/max_speed above
is already broken and needs a get_unaligned.  Otherwise it is
aligned and they can be removed.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Borislav Petkov <petkovbb@googlemail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-24 22:53:33 +02:00
Bartlomiej Zolnierkiewicz
08da591e14 ide: add ide_device_{get,put}() helpers
* Add 'struct ide_host *host' field to ide_hwif_t and set it
  in ide_host_alloc_all().

* Add ide_device_{get,put}() helpers loosely based on SCSI's
  scsi_device_{get,put}() ones.

* Convert IDE device drivers to use ide_device_{get,put}().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-24 22:53:15 +02:00
Borislav Petkov
f2e3ab52af ide-tape: convert to using the new atapi_flags
There should be no functionality change resulting from this patch.

[bart: IDE_FLAG_* -> IDE_AFLAG_*, dev_flags -> atapi_flags]

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-23 19:56:01 +02:00
Borislav Petkov
0014c75be3 ide-tape: pass packet command in rq->cmd
Make a redundant copy of the packet command bits into rq->cmd. Later, after
all drivers have been converted, it'll be switched to use that in the
common code instead of pc->c. While at it, simplify ide_tape_create_rw_cmd.

There should be no functionality change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-23 19:56:00 +02:00
Borislav Petkov
83dd573513 ide-tape: make room for packet command ids in rq->cmd
ide-tape uses rq->cmd for special commands from the chrdev interface so move
those to byte 13 (BLK_MAX_CDB = 16) since a packet cmd is max 12 bytes.

There should be no functionality change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-23 19:56:00 +02:00
Borislav Petkov
776bb0270e ide-tape: use drive->pc_callback instead of pc->callback
The if-else block in the IRQ handler is only temporary so that bisect searches
don't break and it'll be removed after converting the remainder of the drivers.

There should be no functionality change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-23 19:55:59 +02:00
Darren Jenkins
4b50750500 drivers/ide/ide-tape.c: remove double kfree
Coverity CID: 2336 USE_AFTER_FREE

drivers/ide/ide-tape.c ide_tape_kfree_buffer() double free's a pointer
(hint freed by an alias in first outer loop).

This patch simply removes the superfluous kfree().

Signed-off-by: Darren Jenkins <darrenrjenkins@gmailcom>
Acked-by: Borislav Petkov <petkovbb@gmail.com>
Cc: gadio@netvision.net.il
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-23 19:55:59 +02:00
Bartlomiej Zolnierkiewicz
374e042c3e ide: add struct ide_tp_ops (take 2)
* Add struct ide_tp_ops for transport methods.

* Add 'const struct ide_tp_ops *tp_ops' to struct ide_port_info
  and ide_hwif_t.

* Set the default hwif->tp_ops in ide_init_port_data().

* Set host driver specific hwif->tp_ops in ide_init_port().

* Export ide_exec_command(), ide_read_status(), ide_read_altstatus(),
  ide_read_sff_dma_status(), ide_set_irq(), ide_tf_{load,read}()
  and ata_{in,out}put_data().

* Convert host drivers and core code to use struct ide_tp_ops.

* Remove no longer needed default_hwif_transport().

* Cleanup ide_hwif_t from methods that are now in struct ide_tp_ops.

While at it:

* Use struct ide_port_info in falconide.c and q40ide.c.

* Rename ata_{in,out}put_data() to ide_{in,out}put_data().

v2:

* Fix missing convertion in ns87415.c.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-23 19:55:56 +02:00
Bartlomiej Zolnierkiewicz
b73c7ee25d ide: add ->read_status method
* Remove ide_read_status() inline helper.

* Add ->read_status method for reading ATA Status register
  and use it instead of ->INB.

While at it:

* Don't use HWGROUP() macro.

There should be no functional changes caused by this patch.

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-23 19:55:52 +02:00
Greg Kroah-Hartman
6ecaaf94b8 device create: ide: convert device_create to device_create_drvdata
device_create() is race-prone, so use the race-free
device_create_drvdata() instead as device_create() is going away.

Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-07-21 21:54:42 -07:00
Elias Oltmanns
3ef5eb424e IDE: Remove unused code
Remove some code which has been made obsolete and hasn't worked properly
before anyway.  Part of the infrastructure may be reintroduced in a
follow up patch to implement a working command aborting facility.

Signed-off-by: Elias Oltmanns <eo@nebensachen.de>
Cc: "Alan Cox" <alan@lxorguk.ukuu.org.uk>
Cc: "Randy Dunlap" <randy.dunlap@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-16 20:33:48 +02:00
Linus Torvalds
98339cbd36 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: (80 commits)
  ide-floppy: fix unfortunate function naming
  ide-tape: unify idetape_create_read/write_cmd
  ide: add ide_pc_intr() helper
  ide-{floppy,scsi}: read Status Register before stopping DMA engine
  ide-scsi: add more debugging to idescsi_pc_intr()
  ide-scsi: use pc->callback
  ide-floppy: add more debugging to idefloppy_pc_intr()
  ide-tape: always log debug info in idetape_pc_intr() if debugging is enabled
  ide-tape: add ide_tape_io_buffers() helper
  ide-tape: factor out DSC handling from idetape_pc_intr()
  ide-{floppy,tape}: move checking of ->failed_pc to ->callback
  ide: add ide_issue_pc() helper
  ide: add PC_FLAG_DRQ_INTERRUPT pc flag
  ide-scsi: move idescsi_map_sg() call out from idescsi_issue_pc()
  ide: add ide_transfer_pc() helper
  ide-scsi: set drive->scsi flag for devices handled by the driver
  ide-{cd,floppy,tape}: remove checking for drive->scsi
  ide: add PC_FLAG_ZIP_DRIVE pc flag
  ide-tape: factor out waiting for good ireason from idetape_transfer_pc()
  ide-tape: set PC_FLAG_DMA_IN_PROGRESS flag in idetape_transfer_pc()
  ...
2008-07-15 11:15:36 -07:00
Borislav Petkov
cd2abbfec8 ide-tape: unify idetape_create_read/write_cmd
A straightforward one. There should be no functional change resulting from this
change.

[bart: minor fixups]

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:22:03 +02:00
Bartlomiej Zolnierkiewicz
646c0cb6c4 ide: add ide_pc_intr() helper
* ide-tape.c: add 'drive' argument to idetape_update_buffers().

* Add generic ide_pc_intr() helper to ide-atapi.c and then
  convert ide-{floppy,tape,scsi} device drivers to use it.

* ide-tape.c: remove no longer needed DBG_PC_INTR.

There should be no functional changes caused by this patch
(unless the debugging is explicitely compiled in).

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:22:03 +02:00
Bartlomiej Zolnierkiewicz
3e421d324c ide-tape: always log debug info in idetape_pc_intr() if debugging is enabled
Add DBG_PC_INTR debug level and use it to always log debug info
in idetape_pc_intr() if debugging is enabled.

While at it:

* Use drive->name instead of tape->name.

* Log device name with "DMA finished" message.

This is a preparation for adding generic ide_pc_intr() helper.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:22:01 +02:00
Bartlomiej Zolnierkiewicz
08424ac24a ide-tape: add ide_tape_io_buffers() helper
* Add ide_tape_io_buffers() helper which is a wrapper for
  idetape_{in,out}put_buffers() and convert idetape_pc_intr()
  to use it.

* Remove no longer used idetape_io_buf typedef.

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>---
2008-07-15 21:22:01 +02:00
Bartlomiej Zolnierkiewicz
74e63e74ea ide-tape: factor out DSC handling from idetape_pc_intr()
Factor out DSC handling from idetape_pc_intr() to ide_tape_handle_dsc()
helper as a preparation for adding generic ide_pc_intr() helper.

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:22:01 +02:00
Bartlomiej Zolnierkiewicz
dd2e9a032b ide-{floppy,tape}: move checking of ->failed_pc to ->callback
Move checking/resetting of ->failed_pc from ide*_pc_intr() to ->callback
as a preparation for adding generic ide_pc_intr() helper.

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>---
2008-07-15 21:22:01 +02:00
Bartlomiej Zolnierkiewicz
6bf1641ca1 ide: add ide_issue_pc() helper
Add generic ide_issue_pc() helper to ide-atapi.c and then
convert ide-{floppy,tape,scsi} device drivers to use it.

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:22:00 +02:00
Bartlomiej Zolnierkiewicz
28c7214bd8 ide: add PC_FLAG_DRQ_INTERRUPT pc flag
Add PC_FLAG_DRQ_INTERRUPT pc flag, set it in ide*_do_request()
and check for it (instead of checking for IDE*_FLAG_DRQ_INTERRUPT)
in ide*_issue_pc().  This is a preparation for adding generic
ide_issue_pc() helper.

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:59 +02:00
Bartlomiej Zolnierkiewicz
594c16d8dd ide: add ide_transfer_pc() helper
* Add ide-atapi.c file for generic ATAPI support together with
  CONFIG_IDE_ATAPI config option.

* Add generic ide_transfer_pc() helper to ide-atapi.c and then
  convert ide-{floppy,tape,scsi} device drivers to use it.

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:58 +02:00
Bartlomiej Zolnierkiewicz
794cc6804b ide-{cd,floppy,tape}: remove checking for drive->scsi
Remove checking for drive->scsi which is no longer set by IDE core code
(leave the flag since it will be re-used for generic ATAPI support).

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:57 +02:00
Bartlomiej Zolnierkiewicz
5a7b75ab42 ide-tape: factor out waiting for good ireason from idetape_transfer_pc()
Factor out waiting for good ireason from idetape_transfer_pc()
to ide_tape_wait_ireason() as a preparation for adding generic
ide_transfer_pc() helper.

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:57 +02:00
Bartlomiej Zolnierkiewicz
9fd13a27c8 ide-tape: set PC_FLAG_DMA_IN_PROGRESS flag in idetape_transfer_pc()
Set PC_FLAG_DMA_IN_PROGRESS flag in idetape_transfer_pc() instead of
idetape_issue_pc() to match the other ATAPI device drivers.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:57 +02:00
Bartlomiej Zolnierkiewicz
5e33109582 ide-{floppy,tape}: PC_FLAG_DMA_RECOMMENDED -> PC_FLAG_DMA_OK
* Use PC_FLAG_DMA_OK flag instead of PC_FLAG_DMA_RECOMMENDED one.

* Remove no longer used PC_FLAG_DMA_RECOMMENDED flag.

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:56 +02:00
Bartlomiej Zolnierkiewicz
1b06e92aa0 ide-{floppy,tape}: merge pc->idefloppy_callback and pc->idetape_callback
Merge pc->idefloppy_callback and pc->idetape_callback into pc->callback.

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:56 +02:00
Bartlomiej Zolnierkiewicz
92f5daff2b ide-tape: make pc->idetape_callback void
There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:55 +02:00
Bartlomiej Zolnierkiewicz
5985e6abbd ide-tape: merge callbacks
The appropriate functionality of the callback is established through querying
the ATAPI packet command in pc->c[0].

While at it:
- add uptodate variable + leave just one idetape_end_request() call
- don't use HWGROUP() macro

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:55 +02:00
Bartlomiej Zolnierkiewicz
258ec41130 ide-tape: make idetape_retry_pc() void
idetape_retry_pc() always returns ide_stopped so make it void.

There should be no functional changes caused by this patch.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:55 +02:00
Bartlomiej Zolnierkiewicz
568ca92774 ide-{floppy,tape,scsi}: log device name instead of driver name
Log device name instead of driver name in *_pc_intr() and *_transfer_pc*().

While at it:

* Merge two consecutive printk()-s in *_pc_intr() together.

* Replace "floppy"/"tape"/"scsi" references in printk()-s by "device".

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:54 +02:00
Bartlomiej Zolnierkiewicz
170ee569bb ide-tape: remove SIMULATE_ERRORS debug code
Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:54 +02:00
Bartlomiej Zolnierkiewicz
531e9e5054 ide-tape: remove stale comments from idetape_pc_intr()
Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:54 +02:00
Bartlomiej Zolnierkiewicz
91395a1630 ide-tape: remove unneeded CONFIG_BLK_DEV_IDEDMA ifdef
PC_FLAG_DMA_IN_PROGRESS flag is never set if DMA support is disabled.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:54 +02:00
Bartlomiej Zolnierkiewicz
6bd3b0bfb8 ide-tape: remove superfluous warning message from idetape_issue_pc()
ide_dma_off() prints info about DMA being disabled.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:53 +02:00
Bartlomiej Zolnierkiewicz
1e049a8ea1 ide-tape: remove superfluous error message from idetape_pc_intr()
ide_dma_off() prints info about DMA being disabled.

Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:53 +02:00
Bartlomiej Zolnierkiewicz
87429bdc2e ide-tape: idetape_pc_intr() should use local_irq_enable_in_hardirq()
Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:53 +02:00
FUJITA Tomonori
63f5abb095 ide: remove action argument in ide_do_drive_cmd
ide_do_drive_cmd is called only with ide_preempt action argument. So
we can remove the action argument in ide_do_drive_cmd and ide_action_t
typedef.

This patch also includes two minor cleanups: 1) ide_do_drive_cmd
always succeeds so we don't need the return value; 2) the callers use
blk_rq_init before ide_do_drive_cmd so there is no need to initialize
rq->errors.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:51 +02:00
Bartlomiej Zolnierkiewicz
9a410e79b5 ide: remove IDE_TFLAG_NO_SELECT_MASK taskfile flag
Always call SELECT_MASK(..., 0) in ide_tf_load() (needs to be done
to match ide_set_irq(..., 1)) and then remove IDE_TFLAG_NO_SELECT_MASK
taskfile flag.

This change should only affect hpt366 and icside host drivers since
->maskproc(..., 0) for sgiioc4 is equivalent to ide_set_irq(..., 1).

Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:48 +02:00
FUJITA Tomonori
64ea1b4ab7 ide-tape: convert ide_do_drive_cmd path to use blk_execute_rq
This converts the ide_do_drive_cmd path using ide_wait to use
blk_execute_rq.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Borislav Petkov <petkovbb@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:43 +02:00
Bartlomiej Zolnierkiewicz
e8a96aa713 ide: set REQ_PREEMPT request flag in ide_do_drive_cmd() users
* Set REQ_PREEMPT request flag in ide_do_drive_cmd() users
  for ide_preempt and ide_head_wait action types.

* Remove setting REQ_PREEMPT from ide_do_drive_cmd().

While at it:

* Set 'where' variable outside ide_lock.

This is a preparation for converting IDE to use blk_execute_rq().

There should be no functional changes caused by this patch.

Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Borislav Petkov <petkovbb@gmail.com>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:41 +02:00
Harvey Harrison
5d0cc8ae29 ide: use get_unaligned_* helpers
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:41 +02:00
Harvey Harrison
a792bd5a40 ide-tape: use clamp_t() rather than nested min_t()/max_t()
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-07-15 21:21:41 +02:00
Jonathan Corbet
04f4ac9d1b ide-tape: cdev lock_kernel() pushdown
->release() already has explicit lock_kernel() calls...

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2008-06-20 14:05:49 -06:00
FUJITA Tomonori
e7b241a771 ide: use blk_rq_init() to initialize the request
This converts ide to use blk_rq_init to initialize the request.

This is a preparation for large command support, which needs to
initialize the request in a proper way (that is, just doing a memset()
will not work).

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jens Axboe <jens.axboe@oracle.com>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-04-29 14:48:55 +02:00
Bartlomiej Zolnierkiewicz
9f87abe892 ide: add ide_pad_transfer() helper
* Add ide_pad_transfer() helper (which uses ->{in,out}put_data methods
  internally so the transfer is also padded to drive+host requirements)
  and use it instead of ide_atapi_{write_zeros,discard_data}().

* Remove no longer needed ide_atapi_{write_zeros,discard_data}().

Cc: Borislav Petkov <petkovbb@gmail.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28 23:44:41 +02:00
Bartlomiej Zolnierkiewicz
1fc142589e ide: add ide_execute_pkt_cmd() helper
Add ide_execute_pkt_cmd() helper for executing PACKET command,
then convert ATAPI device drivers to use it.

As a nice side-effect this fixes ide-{floppy,tape,scsi} w.r.t.
ide_lock taking (ide-cd was OK).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28 23:44:39 +02:00
Bartlomiej Zolnierkiewicz
3910dde641 ide-{floppy,tape,scsi}: 400ns delay is required after executing the command
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28 23:44:39 +02:00
Bartlomiej Zolnierkiewicz
32b3fe4fff ide: always use ->OUTBSYNC method for executing commands
Always use ->OUTBSYNC method for executing commands so the posting is done
if needed (this affects only pmac and scc_pata host drivers at the moment).

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
2008-04-28 23:44:38 +02:00